diff options
Diffstat (limited to 'ffmpeg1/ffplay.c')
| -rw-r--r-- | ffmpeg1/ffplay.c | 3542 |
1 files changed, 0 insertions, 3542 deletions
diff --git a/ffmpeg1/ffplay.c b/ffmpeg1/ffplay.c deleted file mode 100644 index 535798d..0000000 --- a/ffmpeg1/ffplay.c +++ /dev/null @@ -1,3542 +0,0 @@ -/* - * Copyright (c) 2003 Fabrice Bellard - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file - * simple media player based on the FFmpeg libraries - */ - -#include "config.h" -#include <inttypes.h> -#include <math.h> -#include <limits.h> -#include <signal.h> -#include "libavutil/avstring.h" -#include "libavutil/colorspace.h" -#include "libavutil/mathematics.h" -#include "libavutil/pixdesc.h" -#include "libavutil/imgutils.h" -#include "libavutil/dict.h" -#include "libavutil/parseutils.h" -#include "libavutil/samplefmt.h" -#include "libavutil/avassert.h" -#include "libavutil/time.h" -#include "libavformat/avformat.h" -#include "libavdevice/avdevice.h" -#include "libswscale/swscale.h" -#include "libavutil/opt.h" -#include "libavcodec/avfft.h" -#include "libswresample/swresample.h" - -#if CONFIG_AVFILTER -# include "libavfilter/avcodec.h" -# include "libavfilter/avfilter.h" -# include "libavfilter/avfiltergraph.h" -# include "libavfilter/buffersink.h" -# include "libavfilter/buffersrc.h" -#endif - -#include <SDL.h> -#include <SDL_thread.h> - -#include "cmdutils.h" - -#include <assert.h> - -const char program_name[] = "ffplay"; -const int program_birth_year = 2003; - -#define MAX_QUEUE_SIZE (15 * 1024 * 1024) -#define MIN_FRAMES 5 - -/* SDL audio buffer size, in samples. Should be small to have precise - A/V sync as SDL does not have hardware buffer fullness info. */ -#define SDL_AUDIO_BUFFER_SIZE 1024 - -/* no AV sync correction is done if below the AV sync threshold */ -#define AV_SYNC_THRESHOLD 0.01 -/* no AV correction is done if too big error */ -#define AV_NOSYNC_THRESHOLD 10.0 - -/* maximum audio speed change to get correct sync */ -#define SAMPLE_CORRECTION_PERCENT_MAX 10 - -/* external clock speed adjustment constants for realtime sources based on buffer fullness */ -#define EXTERNAL_CLOCK_SPEED_MIN 0.900 -#define EXTERNAL_CLOCK_SPEED_MAX 1.010 -#define EXTERNAL_CLOCK_SPEED_STEP 0.001 - -/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */ -#define AUDIO_DIFF_AVG_NB 20 - -/* polls for possible required screen refresh at least this often, should be less than 1/fps */ -#define REFRESH_RATE 0.01 - -/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */ -/* TODO: We assume that a decoded and resampled frame fits into this buffer */ -#define SAMPLE_ARRAY_SIZE (8 * 65536) - -#define CURSOR_HIDE_DELAY 1000000 - -static int64_t sws_flags = SWS_BICUBIC; - -typedef struct MyAVPacketList { - AVPacket pkt; - struct MyAVPacketList *next; - int serial; -} MyAVPacketList; - -typedef struct PacketQueue { - MyAVPacketList *first_pkt, *last_pkt; - int nb_packets; - int size; - int abort_request; - int serial; - SDL_mutex *mutex; - SDL_cond *cond; -} PacketQueue; - -#define VIDEO_PICTURE_QUEUE_SIZE 4 -#define SUBPICTURE_QUEUE_SIZE 4 - -typedef struct VideoPicture { - double pts; // presentation timestamp for this picture - int64_t pos; // byte position in file - SDL_Overlay *bmp; - int width, height; /* source height & width */ - int allocated; - int reallocate; - int serial; - - AVRational sar; -} VideoPicture; - -typedef struct SubPicture { - double pts; /* presentation time stamp for this picture */ - AVSubtitle sub; -} SubPicture; - -typedef struct AudioParams { - int freq; - int channels; - int64_t channel_layout; - enum AVSampleFormat fmt; -} AudioParams; - -enum { - AV_SYNC_AUDIO_MASTER, /* default choice */ - AV_SYNC_VIDEO_MASTER, - AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */ -}; - -typedef struct VideoState { - SDL_Thread *read_tid; - SDL_Thread *video_tid; - AVInputFormat *iformat; - int no_background; - int abort_request; - int force_refresh; - int paused; - int last_paused; - int queue_attachments_req; - int seek_req; - int seek_flags; - int64_t seek_pos; - int64_t seek_rel; - int read_pause_return; - AVFormatContext *ic; - int realtime; - - int audio_stream; - - int av_sync_type; - double external_clock; ///< external clock base - double external_clock_drift; ///< external clock base - time (av_gettime) at which we updated external_clock - int64_t external_clock_time; ///< last reference time - double external_clock_speed; ///< speed of the external clock - - double audio_clock; - int audio_clock_serial; - double audio_diff_cum; /* used for AV difference average computation */ - double audio_diff_avg_coef; - double audio_diff_threshold; - int audio_diff_avg_count; - AVStream *audio_st; - PacketQueue audioq; - int audio_hw_buf_size; - uint8_t silence_buf[SDL_AUDIO_BUFFER_SIZE]; - uint8_t *audio_buf; - uint8_t *audio_buf1; - unsigned int audio_buf_size; /* in bytes */ - unsigned int audio_buf1_size; - int audio_buf_index; /* in bytes */ - int audio_write_buf_size; - AVPacket audio_pkt_temp; - AVPacket audio_pkt; - int audio_pkt_temp_serial; - int audio_last_serial; - struct AudioParams audio_src; -#if CONFIG_AVFILTER - struct AudioParams audio_filter_src; -#endif - struct AudioParams audio_tgt; - struct SwrContext *swr_ctx; - double audio_current_pts; - double audio_current_pts_drift; - int frame_drops_early; - int frame_drops_late; - AVFrame *frame; - - enum ShowMode { - SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB - } show_mode; - int16_t sample_array[SAMPLE_ARRAY_SIZE]; - int sample_array_index; - int last_i_start; - RDFTContext *rdft; - int rdft_bits; - FFTSample *rdft_data; - int xpos; - double last_vis_time; - - SDL_Thread *subtitle_tid; - int subtitle_stream; - int subtitle_stream_changed; - AVStream *subtitle_st; - PacketQueue subtitleq; - SubPicture subpq[SUBPICTURE_QUEUE_SIZE]; - int subpq_size, subpq_rindex, subpq_windex; - SDL_mutex *subpq_mutex; - SDL_cond *subpq_cond; - - double frame_timer; - double frame_last_pts; - double frame_last_duration; - double frame_last_dropped_pts; - double frame_last_returned_time; - double frame_last_filter_delay; - int64_t frame_last_dropped_pos; - int video_stream; - AVStream *video_st; - PacketQueue videoq; - double video_current_pts; // current displayed pts - double video_current_pts_drift; // video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts - int64_t video_current_pos; // current displayed file pos - double max_frame_duration; // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity - int video_clock_serial; - VideoPicture pictq[VIDEO_PICTURE_QUEUE_SIZE]; - int pictq_size, pictq_rindex, pictq_windex; - SDL_mutex *pictq_mutex; - SDL_cond *pictq_cond; -#if !CONFIG_AVFILTER - struct SwsContext *img_convert_ctx; -#endif - SDL_Rect last_display_rect; - - char filename[1024]; - int width, height, xleft, ytop; - int step; - -#if CONFIG_AVFILTER - AVFilterContext *in_video_filter; // the first filter in the video chain - AVFilterContext *out_video_filter; // the last filter in the video chain - AVFilterContext *in_audio_filter; // the first filter in the audio chain - AVFilterContext *out_audio_filter; // the last filter in the audio chain - AVFilterGraph *agraph; // audio filter graph -#endif - - int last_video_stream, last_audio_stream, last_subtitle_stream; - - SDL_cond *continue_read_thread; -} VideoState; - -/* options specified by the user */ -static AVInputFormat *file_iformat; -static const char *input_filename; -static const char *window_title; -static int fs_screen_width; -static int fs_screen_height; -static int default_width = 640; -static int default_height = 480; -static int screen_width = 0; -static int screen_height = 0; -static int audio_disable; -static int video_disable; -static int subtitle_disable; -static int wanted_stream[AVMEDIA_TYPE_NB] = { - [AVMEDIA_TYPE_AUDIO] = -1, - [AVMEDIA_TYPE_VIDEO] = -1, - [AVMEDIA_TYPE_SUBTITLE] = -1, -}; -static int seek_by_bytes = -1; -static int display_disable; -static int show_status = 1; -static int av_sync_type = AV_SYNC_AUDIO_MASTER; -static int64_t start_time = AV_NOPTS_VALUE; -static int64_t duration = AV_NOPTS_VALUE; -static int workaround_bugs = 1; -static int fast = 0; -static int genpts = 0; -static int lowres = 0; -static int idct = FF_IDCT_AUTO; -static int error_concealment = 3; -static int decoder_reorder_pts = -1; -static int autoexit; -static int exit_on_keydown; -static int exit_on_mousedown; -static int loop = 1; -static int framedrop = -1; -static int infinite_buffer = -1; -static enum ShowMode show_mode = SHOW_MODE_NONE; -static const char *audio_codec_name; -static const char *subtitle_codec_name; -static const char *video_codec_name; -double rdftspeed = 0.02; -static int64_t cursor_last_shown; -static int cursor_hidden = 0; -#if CONFIG_AVFILTER -static char *vfilters = NULL; -static char *afilters = NULL; -#endif - -/* current context */ -static int is_full_screen; -static int64_t audio_callback_time; - -static AVPacket flush_pkt; - -#define FF_ALLOC_EVENT (SDL_USEREVENT) -#define FF_QUIT_EVENT (SDL_USEREVENT + 2) - -static SDL_Surface *screen; - -static inline -int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1, - enum AVSampleFormat fmt2, int64_t channel_count2) -{ - /* If channel count == 1, planar and non-planar formats are the same */ - if (channel_count1 == 1 && channel_count2 == 1) - return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2); - else - return channel_count1 != channel_count2 || fmt1 != fmt2; -} - -static inline -int64_t get_valid_channel_layout(int64_t channel_layout, int channels) -{ - if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels) - return channel_layout; - else - return 0; -} - -static int packet_queue_put(PacketQueue *q, AVPacket *pkt); - -static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt) -{ - MyAVPacketList *pkt1; - - if (q->abort_request) - return -1; - - pkt1 = av_malloc(sizeof(MyAVPacketList)); - if (!pkt1) - return -1; - pkt1->pkt = *pkt; - pkt1->next = NULL; - if (pkt == &flush_pkt) - q->serial++; - pkt1->serial = q->serial; - - if (!q->last_pkt) - q->first_pkt = pkt1; - else - q->last_pkt->next = pkt1; - q->last_pkt = pkt1; - q->nb_packets++; - q->size += pkt1->pkt.size + sizeof(*pkt1); - /* XXX: should duplicate packet data in DV case */ - SDL_CondSignal(q->cond); - return 0; -} - -static int packet_queue_put(PacketQueue *q, AVPacket *pkt) -{ - int ret; - - /* duplicate the packet */ - if (pkt != &flush_pkt && av_dup_packet(pkt) < 0) - return -1; - - SDL_LockMutex(q->mutex); - ret = packet_queue_put_private(q, pkt); - SDL_UnlockMutex(q->mutex); - - if (pkt != &flush_pkt && ret < 0) - av_free_packet(pkt); - - return ret; -} - -/* packet queue handling */ -static void packet_queue_init(PacketQueue *q) -{ - memset(q, 0, sizeof(PacketQueue)); - q->mutex = SDL_CreateMutex(); - q->cond = SDL_CreateCond(); - q->abort_request = 1; -} - -static void packet_queue_flush(PacketQueue *q) -{ - MyAVPacketList *pkt, *pkt1; - - SDL_LockMutex(q->mutex); - for (pkt = q->first_pkt; pkt != NULL; pkt = pkt1) { - pkt1 = pkt->next; - av_free_packet(&pkt->pkt); - av_freep(&pkt); - } - q->last_pkt = NULL; - q->first_pkt = NULL; - q->nb_packets = 0; - q->size = 0; - SDL_UnlockMutex(q->mutex); -} - -static void packet_queue_destroy(PacketQueue *q) -{ - packet_queue_flush(q); - SDL_DestroyMutex(q->mutex); - SDL_DestroyCond(q->cond); -} - -static void packet_queue_abort(PacketQueue *q) -{ - SDL_LockMutex(q->mutex); - - q->abort_request = 1; - - SDL_CondSignal(q->cond); - - SDL_UnlockMutex(q->mutex); -} - -static void packet_queue_start(PacketQueue *q) -{ - SDL_LockMutex(q->mutex); - q->abort_request = 0; - packet_queue_put_private(q, &flush_pkt); - SDL_UnlockMutex(q->mutex); -} - -/* return < 0 if aborted, 0 if no packet and > 0 if packet. */ -static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial) -{ - MyAVPacketList *pkt1; - int ret; - - SDL_LockMutex(q->mutex); - - for (;;) { - if (q->abort_request) { - ret = -1; - break; - } - - pkt1 = q->first_pkt; - if (pkt1) { - q->first_pkt = pkt1->next; - if (!q->first_pkt) - q->last_pkt = NULL; - q->nb_packets--; - q->size -= pkt1->pkt.size + sizeof(*pkt1); - *pkt = pkt1->pkt; - if (serial) - *serial = pkt1->serial; - av_free(pkt1); - ret = 1; - break; - } else if (!block) { - ret = 0; - break; - } else { - SDL_CondWait(q->cond, q->mutex); - } - } - SDL_UnlockMutex(q->mutex); - return ret; -} - -static inline void fill_rectangle(SDL_Surface *screen, - int x, int y, int w, int h, int color, int update) -{ - SDL_Rect rect; - rect.x = x; - rect.y = y; - rect.w = w; - rect.h = h; - SDL_FillRect(screen, &rect, color); - if (update && w > 0 && h > 0) - SDL_UpdateRect(screen, x, y, w, h); -} - -/* draw only the border of a rectangle */ -static void fill_border(int xleft, int ytop, int width, int height, int x, int y, int w, int h, int color, int update) -{ - int w1, w2, h1, h2; - - /* fill the background */ - w1 = x; - if (w1 < 0) - w1 = 0; - w2 = width - (x + w); - if (w2 < 0) - w2 = 0; - h1 = y; - if (h1 < 0) - h1 = 0; - h2 = height - (y + h); - if (h2 < 0) - h2 = 0; - fill_rectangle(screen, - xleft, ytop, - w1, height, - color, update); - fill_rectangle(screen, - xleft + width - w2, ytop, - w2, height, - color, update); - fill_rectangle(screen, - xleft + w1, ytop, - width - w1 - w2, h1, - color, update); - fill_rectangle(screen, - xleft + w1, ytop + height - h2, - width - w1 - w2, h2, - color, update); -} - -#define ALPHA_BLEND(a, oldp, newp, s)\ -((((oldp << s) * (255 - (a))) + (newp * (a))) / (255 << s)) - -#define RGBA_IN(r, g, b, a, s)\ -{\ - unsigned int v = ((const uint32_t *)(s))[0];\ - a = (v >> 24) & 0xff;\ - r = (v >> 16) & 0xff;\ - g = (v >> 8) & 0xff;\ - b = v & 0xff;\ -} - -#define YUVA_IN(y, u, v, a, s, pal)\ -{\ - unsigned int val = ((const uint32_t *)(pal))[*(const uint8_t*)(s)];\ - a = (val >> 24) & 0xff;\ - y = (val >> 16) & 0xff;\ - u = (val >> 8) & 0xff;\ - v = val & 0xff;\ -} - -#define YUVA_OUT(d, y, u, v, a)\ -{\ - ((uint32_t *)(d))[0] = (a << 24) | (y << 16) | (u << 8) | v;\ -} - - -#define BPP 1 - -static void blend_subrect(AVPicture *dst, const AVSubtitleRect *rect, int imgw, int imgh) -{ - int wrap, wrap3, width2, skip2; - int y, u, v, a, u1, v1, a1, w, h; - uint8_t *lum, *cb, *cr; - const uint8_t *p; - const uint32_t *pal; - int dstx, dsty, dstw, dsth; - - dstw = av_clip(rect->w, 0, imgw); - dsth = av_clip(rect->h, 0, imgh); - dstx = av_clip(rect->x, 0, imgw - dstw); - dsty = av_clip(rect->y, 0, imgh - dsth); - lum = dst->data[0] + dsty * dst->linesize[0]; - cb = dst->data[1] + (dsty >> 1) * dst->linesize[1]; - cr = dst->data[2] + (dsty >> 1) * dst->linesize[2]; - - width2 = ((dstw + 1) >> 1) + (dstx & ~dstw & 1); - skip2 = dstx >> 1; - wrap = dst->linesize[0]; - wrap3 = rect->pict.linesize[0]; - p = rect->pict.data[0]; - pal = (const uint32_t *)rect->pict.data[1]; /* Now in YCrCb! */ - - if (dsty & 1) { - lum += dstx; - cb += skip2; - cr += skip2; - - if (dstx & 1) { - YUVA_IN(y, u, v, a, p, pal); - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); - cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); - cb++; - cr++; - lum++; - p += BPP; - } - for (w = dstw - (dstx & 1); w >= 2; w -= 2) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - - YUVA_IN(y, u, v, a, p + BPP, pal); - u1 += u; - v1 += v; - a1 += a; - lum[1] = ALPHA_BLEND(a, lum[1], y, 0); - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); - cb++; - cr++; - p += 2 * BPP; - lum += 2; - } - if (w) { - YUVA_IN(y, u, v, a, p, pal); - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); - cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); - p++; - lum++; - } - p += wrap3 - dstw * BPP; - lum += wrap - dstw - dstx; - cb += dst->linesize[1] - width2 - skip2; - cr += dst->linesize[2] - width2 - skip2; - } - for (h = dsth - (dsty & 1); h >= 2; h -= 2) { - lum += dstx; - cb += skip2; - cr += skip2; - - if (dstx & 1) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - p += wrap3; - lum += wrap; - YUVA_IN(y, u, v, a, p, pal); - u1 += u; - v1 += v; - a1 += a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); - cb++; - cr++; - p += -wrap3 + BPP; - lum += -wrap + 1; - } - for (w = dstw - (dstx & 1); w >= 2; w -= 2) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - - YUVA_IN(y, u, v, a, p + BPP, pal); - u1 += u; - v1 += v; - a1 += a; - lum[1] = ALPHA_BLEND(a, lum[1], y, 0); - p += wrap3; - lum += wrap; - - YUVA_IN(y, u, v, a, p, pal); - u1 += u; - v1 += v; - a1 += a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - - YUVA_IN(y, u, v, a, p + BPP, pal); - u1 += u; - v1 += v; - a1 += a; - lum[1] = ALPHA_BLEND(a, lum[1], y, 0); - - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 2); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 2); - - cb++; - cr++; - p += -wrap3 + 2 * BPP; - lum += -wrap + 2; - } - if (w) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - p += wrap3; - lum += wrap; - YUVA_IN(y, u, v, a, p, pal); - u1 += u; - v1 += v; - a1 += a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u1, 1); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v1, 1); - cb++; - cr++; - p += -wrap3 + BPP; - lum += -wrap + 1; - } - p += wrap3 + (wrap3 - dstw * BPP); - lum += wrap + (wrap - dstw - dstx); - cb += dst->linesize[1] - width2 - skip2; - cr += dst->linesize[2] - width2 - skip2; - } - /* handle odd height */ - if (h) { - lum += dstx; - cb += skip2; - cr += skip2; - - if (dstx & 1) { - YUVA_IN(y, u, v, a, p, pal); - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); - cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); - cb++; - cr++; - lum++; - p += BPP; - } - for (w = dstw - (dstx & 1); w >= 2; w -= 2) { - YUVA_IN(y, u, v, a, p, pal); - u1 = u; - v1 = v; - a1 = a; - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - - YUVA_IN(y, u, v, a, p + BPP, pal); - u1 += u; - v1 += v; - a1 += a; - lum[1] = ALPHA_BLEND(a, lum[1], y, 0); - cb[0] = ALPHA_BLEND(a1 >> 2, cb[0], u, 1); - cr[0] = ALPHA_BLEND(a1 >> 2, cr[0], v, 1); - cb++; - cr++; - p += 2 * BPP; - lum += 2; - } - if (w) { - YUVA_IN(y, u, v, a, p, pal); - lum[0] = ALPHA_BLEND(a, lum[0], y, 0); - cb[0] = ALPHA_BLEND(a >> 2, cb[0], u, 0); - cr[0] = ALPHA_BLEND(a >> 2, cr[0], v, 0); - } - } -} - -static void free_subpicture(SubPicture *sp) -{ - avsubtitle_free(&sp->sub); -} - -static void calculate_display_rect(SDL_Rect *rect, int scr_xleft, int scr_ytop, int scr_width, int scr_height, VideoPicture *vp) -{ - float aspect_ratio; - int width, height, x, y; - - if (vp->sar.num == 0) - aspect_ratio = 0; - else - aspect_ratio = av_q2d(vp->sar); - - if (aspect_ratio <= 0.0) - aspect_ratio = 1.0; - aspect_ratio *= (float)vp->width / (float)vp->height; - - /* XXX: we suppose the screen has a 1.0 pixel ratio */ - height = scr_height; - width = ((int)rint(height * aspect_ratio)) & ~1; - if (width > scr_width) { - width = scr_width; - height = ((int)rint(width / aspect_ratio)) & ~1; - } - x = (scr_width - width) / 2; - y = (scr_height - height) / 2; - rect->x = scr_xleft + x; - rect->y = scr_ytop + y; - rect->w = FFMAX(width, 1); - rect->h = FFMAX(height, 1); -} - -static void video_image_display(VideoState *is) -{ - VideoPicture *vp; - SubPicture *sp; - AVPicture pict; - SDL_Rect rect; - int i; - - vp = &is->pictq[is->pictq_rindex]; - if (vp->bmp) { - if (is->subtitle_st) { - if (is->subpq_size > 0) { - sp = &is->subpq[is->subpq_rindex]; - - if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) { - SDL_LockYUVOverlay (vp->bmp); - - pict.data[0] = vp->bmp->pixels[0]; - pict.data[1] = vp->bmp->pixels[2]; - pict.data[2] = vp->bmp->pixels[1]; - - pict.linesize[0] = vp->bmp->pitches[0]; - pict.linesize[1] = vp->bmp->pitches[2]; - pict.linesize[2] = vp->bmp->pitches[1]; - - for (i = 0; i < sp->sub.num_rects; i++) - blend_subrect(&pict, sp->sub.rects[i], - vp->bmp->w, vp->bmp->h); - - SDL_UnlockYUVOverlay (vp->bmp); - } - } - } - - calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp); - - SDL_DisplayYUVOverlay(vp->bmp, &rect); - - if (rect.x != is->last_display_rect.x || rect.y != is->last_display_rect.y || rect.w != is->last_display_rect.w || rect.h != is->last_display_rect.h || is->force_refresh) { - int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); - fill_border(is->xleft, is->ytop, is->width, is->height, rect.x, rect.y, rect.w, rect.h, bgcolor, 1); - is->last_display_rect = rect; - } - } -} - -static inline int compute_mod(int a, int b) -{ - return a < 0 ? a%b + b : a%b; -} - -static void video_audio_display(VideoState *s) -{ - int i, i_start, x, y1, y, ys, delay, n, nb_display_channels; - int ch, channels, h, h2, bgcolor, fgcolor; - int64_t time_diff; - int rdft_bits, nb_freq; - - for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++) - ; - nb_freq = 1 << (rdft_bits - 1); - - /* compute display index : center on currently output samples */ - channels = s->audio_tgt.channels; - nb_display_channels = channels; - if (!s->paused) { - int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq); - n = 2 * channels; - delay = s->audio_write_buf_size; - delay /= n; - - /* to be more precise, we take into account the time spent since - the last buffer computation */ - if (audio_callback_time) { - time_diff = av_gettime() - audio_callback_time; - delay -= (time_diff * s->audio_tgt.freq) / 1000000; - } - - delay += 2 * data_used; - if (delay < data_used) - delay = data_used; - - i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE); - if (s->show_mode == SHOW_MODE_WAVES) { - h = INT_MIN; - for (i = 0; i < 1000; i += channels) { - int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE; - int a = s->sample_array[idx]; - int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE]; - int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE]; - int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE]; - int score = a - d; - if (h < score && (b ^ c) < 0) { - h = score; - i_start = idx; - } - } - } - - s->last_i_start = i_start; - } else { - i_start = s->last_i_start; - } - - bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); - if (s->show_mode == SHOW_MODE_WAVES) { - fill_rectangle(screen, - s->xleft, s->ytop, s->width, s->height, - bgcolor, 0); - - fgcolor = SDL_MapRGB(screen->format, 0xff, 0xff, 0xff); - - /* total height for one channel */ - h = s->height / nb_display_channels; - /* graph height / 2 */ - h2 = (h * 9) / 20; - for (ch = 0; ch < nb_display_channels; ch++) { - i = i_start + ch; - y1 = s->ytop + ch * h + (h / 2); /* position of center line */ - for (x = 0; x < s->width; x++) { - y = (s->sample_array[i] * h2) >> 15; - if (y < 0) { - y = -y; - ys = y1 - y; - } else { - ys = y1; - } - fill_rectangle(screen, - s->xleft + x, ys, 1, y, - fgcolor, 0); - i += channels; - if (i >= SAMPLE_ARRAY_SIZE) - i -= SAMPLE_ARRAY_SIZE; - } - } - - fgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0xff); - - for (ch = 1; ch < nb_display_channels; ch++) { - y = s->ytop + ch * h; - fill_rectangle(screen, - s->xleft, y, s->width, 1, - fgcolor, 0); - } - SDL_UpdateRect(screen, s->xleft, s->ytop, s->width, s->height); - } else { - nb_display_channels= FFMIN(nb_display_channels, 2); - if (rdft_bits != s->rdft_bits) { - av_rdft_end(s->rdft); - av_free(s->rdft_data); - s->rdft = av_rdft_init(rdft_bits, DFT_R2C); - s->rdft_bits = rdft_bits; - s->rdft_data = av_malloc(4 * nb_freq * sizeof(*s->rdft_data)); - } - { - FFTSample *data[2]; - for (ch = 0; ch < nb_display_channels; ch++) { - data[ch] = s->rdft_data + 2 * nb_freq * ch; - i = i_start + ch; - for (x = 0; x < 2 * nb_freq; x++) { - double w = (x-nb_freq) * (1.0 / nb_freq); - data[ch][x] = s->sample_array[i] * (1.0 - w * w); - i += channels; - if (i >= SAMPLE_ARRAY_SIZE) - i -= SAMPLE_ARRAY_SIZE; - } - av_rdft_calc(s->rdft, data[ch]); - } - // least efficient way to do this, we should of course directly access it but its more than fast enough - for (y = 0; y < s->height; y++) { - double w = 1 / sqrt(nb_freq); - int a = sqrt(w * sqrt(data[0][2 * y + 0] * data[0][2 * y + 0] + data[0][2 * y + 1] * data[0][2 * y + 1])); - int b = (nb_display_channels == 2 ) ? sqrt(w * sqrt(data[1][2 * y + 0] * data[1][2 * y + 0] - + data[1][2 * y + 1] * data[1][2 * y + 1])) : a; - a = FFMIN(a, 255); - b = FFMIN(b, 255); - fgcolor = SDL_MapRGB(screen->format, a, b, (a + b) / 2); - - fill_rectangle(screen, - s->xpos, s->height-y, 1, 1, - fgcolor, 0); - } - } - SDL_UpdateRect(screen, s->xpos, s->ytop, 1, s->height); - if (!s->paused) - s->xpos++; - if (s->xpos >= s->width) - s->xpos= s->xleft; - } -} - -static void stream_close(VideoState *is) -{ - VideoPicture *vp; - int i; - /* XXX: use a special url_shutdown call to abort parse cleanly */ - is->abort_request = 1; - SDL_WaitThread(is->read_tid, NULL); - packet_queue_destroy(&is->videoq); - packet_queue_destroy(&is->audioq); - packet_queue_destroy(&is->subtitleq); - - /* free all pictures */ - for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) { - vp = &is->pictq[i]; - if (vp->bmp) { - SDL_FreeYUVOverlay(vp->bmp); - vp->bmp = NULL; - } - } - SDL_DestroyMutex(is->pictq_mutex); - SDL_DestroyCond(is->pictq_cond); - SDL_DestroyMutex(is->subpq_mutex); - SDL_DestroyCond(is->subpq_cond); - SDL_DestroyCond(is->continue_read_thread); -#if !CONFIG_AVFILTER - sws_freeContext(is->img_convert_ctx); -#endif - av_free(is); -} - -static void do_exit(VideoState *is) -{ - if (is) { - stream_close(is); - } - av_lockmgr_register(NULL); - uninit_opts(); -#if CONFIG_AVFILTER - avfilter_uninit(); - av_freep(&vfilters); -#endif - avformat_network_deinit(); - if (show_status) - printf("\n"); - SDL_Quit(); - av_log(NULL, AV_LOG_QUIET, "%s", ""); - exit(0); -} - -static void sigterm_handler(int sig) -{ - exit(123); -} - -static int video_open(VideoState *is, int force_set_video_mode, VideoPicture *vp) -{ - int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL; - int w,h; - SDL_Rect rect; - - if (is_full_screen) flags |= SDL_FULLSCREEN; - else flags |= SDL_RESIZABLE; - - if (vp && vp->width) { - calculate_display_rect(&rect, 0, 0, INT_MAX, vp->height, vp); - default_width = rect.w; - default_height = rect.h; - } - - if (is_full_screen && fs_screen_width) { - w = fs_screen_width; - h = fs_screen_height; - } else if (!is_full_screen && screen_width) { - w = screen_width; - h = screen_height; - } else { - w = default_width; - h = default_height; - } - if (screen && is->width == screen->w && screen->w == w - && is->height== screen->h && screen->h == h && !force_set_video_mode) - return 0; - screen = SDL_SetVideoMode(w, h, 0, flags); - if (!screen) { - fprintf(stderr, "SDL: could not set video mode - exiting\n"); - do_exit(is); - } - if (!window_title) - window_title = input_filename; - SDL_WM_SetCaption(window_title, window_title); - - is->width = screen->w; - is->height = screen->h; - - return 0; -} - -/* display the current picture, if any */ -static void video_display(VideoState *is) -{ - if (!screen) - video_open(is, 0, NULL); - if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO) - video_audio_display(is); - else if (is->video_st) - video_image_display(is); -} - -/* get the current audio clock value */ -static double get_audio_clock(VideoState *is) -{ - if (is->audio_clock_serial != is->audioq.serial) - return NAN; - if (is->paused) { - return is->audio_current_pts; - } else { - return is->audio_current_pts_drift + av_gettime() / 1000000.0; - } -} - -/* get the current video clock value */ -static double get_video_clock(VideoState *is) -{ - if (is->video_clock_serial != is->videoq.serial) - return NAN; - if (is->paused) { - return is->video_current_pts; - } else { - return is->video_current_pts_drift + av_gettime() / 1000000.0; - } -} - -/* get the current external clock value */ -static double get_external_clock(VideoState *is) -{ - if (is->paused) { - return is->external_clock; - } else { - double time = av_gettime() / 1000000.0; - return is->external_clock_drift + time - (time - is->external_clock_time / 1000000.0) * (1.0 - is->external_clock_speed); - } -} - -static int get_master_sync_type(VideoState *is) { - if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) { - if (is->video_st) - return AV_SYNC_VIDEO_MASTER; - else - return AV_SYNC_AUDIO_MASTER; - } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) { - if (is->audio_st) - return AV_SYNC_AUDIO_MASTER; - else - return AV_SYNC_EXTERNAL_CLOCK; - } else { - return AV_SYNC_EXTERNAL_CLOCK; - } -} - -/* get the current master clock value */ -static double get_master_clock(VideoState *is) -{ - double val; - - switch (get_master_sync_type(is)) { - case AV_SYNC_VIDEO_MASTER: - val = get_video_clock(is); - break; - case AV_SYNC_AUDIO_MASTER: - val = get_audio_clock(is); - break; - default: - val = get_external_clock(is); - break; - } - return val; -} - -static void update_external_clock_pts(VideoState *is, double pts) -{ - is->external_clock_time = av_gettime(); - is->external_clock = pts; - is->external_clock_drift = pts - is->external_clock_time / 1000000.0; -} - -static void check_external_clock_sync(VideoState *is, double pts) { - double ext_clock = get_external_clock(is); - if (isnan(ext_clock) || fabs(ext_clock - pts) > AV_NOSYNC_THRESHOLD) { - update_external_clock_pts(is, pts); - } -} - -static void update_external_clock_speed(VideoState *is, double speed) { - update_external_clock_pts(is, get_external_clock(is)); - is->external_clock_speed = speed; -} - -static void check_external_clock_speed(VideoState *is) { - if (is->video_stream >= 0 && is->videoq.nb_packets <= MIN_FRAMES / 2 || - is->audio_stream >= 0 && is->audioq.nb_packets <= MIN_FRAMES / 2) { - update_external_clock_speed(is, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->external_clock_speed - EXTERNAL_CLOCK_SPEED_STEP)); - } else if ((is->video_stream < 0 || is->videoq.nb_packets > MIN_FRAMES * 2) && - (is->audio_stream < 0 || is->audioq.nb_packets > MIN_FRAMES * 2)) { - update_external_clock_speed(is, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->external_clock_speed + EXTERNAL_CLOCK_SPEED_STEP)); - } else { - double speed = is->external_clock_speed; - if (speed != 1.0) - update_external_clock_speed(is, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed)); - } -} - -/* seek in the stream */ -static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes) -{ - if (!is->seek_req) { - is->seek_pos = pos; - is->seek_rel = rel; - is->seek_flags &= ~AVSEEK_FLAG_BYTE; - if (seek_by_bytes) - is->seek_flags |= AVSEEK_FLAG_BYTE; - is->seek_req = 1; - SDL_CondSignal(is->continue_read_thread); - } -} - -/* pause or resume the video */ -static void stream_toggle_pause(VideoState *is) -{ - if (is->paused) { - is->frame_timer += av_gettime() / 1000000.0 + is->video_current_pts_drift - is->video_current_pts; - if (is->read_pause_return != AVERROR(ENOSYS)) { - is->video_current_pts = is->video_current_pts_drift + av_gettime() / 1000000.0; - } - is->video_current_pts_drift = is->video_current_pts - av_gettime() / 1000000.0; - } - update_external_clock_pts(is, get_external_clock(is)); - is->paused = !is->paused; -} - -static void toggle_pause(VideoState *is) -{ - stream_toggle_pause(is); - is->step = 0; -} - -static void step_to_next_frame(VideoState *is) -{ - /* if the stream is paused unpause it, then step */ - if (is->paused) - stream_toggle_pause(is); - is->step = 1; -} - -static double compute_target_delay(double delay, VideoState *is) -{ - double sync_threshold, diff; - - /* update delay to follow master synchronisation source */ - if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) { - /* if video is slave, we try to correct big delays by - duplicating or deleting a frame */ - diff = get_video_clock(is) - get_master_clock(is); - - /* skip or repeat frame. We take into account the - delay to compute the threshold. I still don't know - if it is the best guess */ - sync_threshold = FFMAX(AV_SYNC_THRESHOLD, delay); - if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) { - if (diff <= -sync_threshold) - delay = 0; - else if (diff >= sync_threshold) - delay = 2 * delay; - } - } - - av_dlog(NULL, "video: delay=%0.3f A-V=%f\n", - delay, -diff); - - return delay; -} - -static void pictq_next_picture(VideoState *is) { - /* update queue size and signal for next picture */ - if (++is->pictq_rindex == VIDEO_PICTURE_QUEUE_SIZE) - is->pictq_rindex = 0; - - SDL_LockMutex(is->pictq_mutex); - is->pictq_size--; - SDL_CondSignal(is->pictq_cond); - SDL_UnlockMutex(is->pictq_mutex); -} - -static int pictq_prev_picture(VideoState *is) { - VideoPicture *prevvp; - int ret = 0; - /* update queue size and signal for the previous picture */ - prevvp = &is->pictq[(is->pictq_rindex + VIDEO_PICTURE_QUEUE_SIZE - 1) % VIDEO_PICTURE_QUEUE_SIZE]; - if (prevvp->allocated && prevvp->serial == is->videoq.serial) { - SDL_LockMutex(is->pictq_mutex); - if (is->pictq_size < VIDEO_PICTURE_QUEUE_SIZE - 1) { - if (--is->pictq_rindex == -1) - is->pictq_rindex = VIDEO_PICTURE_QUEUE_SIZE - 1; - is->pictq_size++; - ret = 1; - } - SDL_CondSignal(is->pictq_cond); - SDL_UnlockMutex(is->pictq_mutex); - } - return ret; -} - -static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) { - double time = av_gettime() / 1000000.0; - /* update current video pts */ - is->video_current_pts = pts; - is->video_current_pts_drift = is->video_current_pts - time; - is->video_current_pos = pos; - is->frame_last_pts = pts; - is->video_clock_serial = serial; - if (is->videoq.serial == serial) - check_external_clock_sync(is, is->video_current_pts); -} - -/* called to display each frame */ -static void video_refresh(void *opaque, double *remaining_time) -{ - VideoState *is = opaque; - VideoPicture *vp; - double time; - - SubPicture *sp, *sp2; - - if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime) - check_external_clock_speed(is); - - if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) { - time = av_gettime() / 1000000.0; - if (is->force_refresh || is->last_vis_time + rdftspeed < time) { - video_display(is); - is->last_vis_time = time; - } - *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time); - } - - if (is->video_st) { - int redisplay = 0; - if (is->force_refresh) - redisplay = pictq_prev_picture(is); -retry: - if (is->pictq_size == 0) { - SDL_LockMutex(is->pictq_mutex); - if (is->frame_last_dropped_pts != AV_NOPTS_VALUE && is->frame_last_dropped_pts > is->frame_last_pts) { - update_video_pts(is, is->frame_last_dropped_pts, is->frame_last_dropped_pos, 0); - is->frame_last_dropped_pts = AV_NOPTS_VALUE; - } - SDL_UnlockMutex(is->pictq_mutex); - // nothing to do, no picture to display in the queue - } else { - double last_duration, duration, delay; - /* dequeue the picture */ - vp = &is->pictq[is->pictq_rindex]; - - if (vp->serial != is->videoq.serial) { - pictq_next_picture(is); - redisplay = 0; - goto retry; - } - - if (is->paused) - goto display; - - /* compute nominal last_duration */ - last_duration = vp->pts - is->frame_last_pts; - if (last_duration > 0 && last_duration < is->max_frame_duration) { - /* if duration of the last frame was sane, update last_duration in video state */ - is->frame_last_duration = last_duration; - } - delay = compute_target_delay(is->frame_last_duration, is); - - time= av_gettime()/1000000.0; - if (time < is->frame_timer + delay) { - *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time); - return; - } - - if (delay > 0) - is->frame_timer += delay * FFMAX(1, floor((time-is->frame_timer) / delay)); - - SDL_LockMutex(is->pictq_mutex); - update_video_pts(is, vp->pts, vp->pos, vp->serial); - SDL_UnlockMutex(is->pictq_mutex); - - if (is->pictq_size > 1) { - VideoPicture *nextvp = &is->pictq[(is->pictq_rindex + 1) % VIDEO_PICTURE_QUEUE_SIZE]; - duration = nextvp->pts - vp->pts; - if(!is->step && (redisplay || framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){ - if (!redisplay) - is->frame_drops_late++; - pictq_next_picture(is); - redisplay = 0; - goto retry; - } - } - - if (is->subtitle_st) { - if (is->subtitle_stream_changed) { - SDL_LockMutex(is->subpq_mutex); - - while (is->subpq_size) { - free_subpicture(&is->subpq[is->subpq_rindex]); - - /* update queue size and signal for next picture */ - if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) - is->subpq_rindex = 0; - - is->subpq_size--; - } - is->subtitle_stream_changed = 0; - - SDL_CondSignal(is->subpq_cond); - SDL_UnlockMutex(is->subpq_mutex); - } else { - if (is->subpq_size > 0) { - sp = &is->subpq[is->subpq_rindex]; - - if (is->subpq_size > 1) - sp2 = &is->subpq[(is->subpq_rindex + 1) % SUBPICTURE_QUEUE_SIZE]; - else - sp2 = NULL; - - if ((is->video_current_pts > (sp->pts + ((float) sp->sub.end_display_time / 1000))) - || (sp2 && is->video_current_pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000)))) - { - free_subpicture(sp); - - /* update queue size and signal for next picture */ - if (++is->subpq_rindex == SUBPICTURE_QUEUE_SIZE) - is->subpq_rindex = 0; - - SDL_LockMutex(is->subpq_mutex); - is->subpq_size--; - SDL_CondSignal(is->subpq_cond); - SDL_UnlockMutex(is->subpq_mutex); - } - } - } - } - -display: - /* display picture */ - if (!display_disable && is->show_mode == SHOW_MODE_VIDEO) - video_display(is); - - pictq_next_picture(is); - - if (is->step && !is->paused) - stream_toggle_pause(is); - } - } - is->force_refresh = 0; - if (show_status) { - static int64_t last_time; - int64_t cur_time; - int aqsize, vqsize, sqsize; - double av_diff; - - cur_time = av_gettime(); - if (!last_time || (cur_time - last_time) >= 30000) { - aqsize = 0; - vqsize = 0; - sqsize = 0; - if (is->audio_st) - aqsize = is->audioq.size; - if (is->video_st) - vqsize = is->videoq.size; - if (is->subtitle_st) - sqsize = is->subtitleq.size; - av_diff = 0; - if (is->audio_st && is->video_st) - av_diff = get_audio_clock(is) - get_video_clock(is); - printf("%7.2f A-V:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64" \r", - get_master_clock(is), - av_diff, - is->frame_drops_early + is->frame_drops_late, - aqsize / 1024, - vqsize / 1024, - sqsize, - is->video_st ? is->video_st->codec->pts_correction_num_faulty_dts : 0, - is->video_st ? is->video_st->codec->pts_correction_num_faulty_pts : 0); - fflush(stdout); - last_time = cur_time; - } - } -} - -/* allocate a picture (needs to do that in main thread to avoid - potential locking problems */ -static void alloc_picture(VideoState *is) -{ - VideoPicture *vp; - - vp = &is->pictq[is->pictq_windex]; - - if (vp->bmp) - SDL_FreeYUVOverlay(vp->bmp); - - video_open(is, 0, vp); - - vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height, - SDL_YV12_OVERLAY, - screen); - if (!vp->bmp || vp->bmp->pitches[0] < vp->width) { - /* SDL allocates a buffer smaller than requested if the video - * overlay hardware is unable to support the requested size. */ - fprintf(stderr, "Error: the video system does not support an image\n" - "size of %dx%d pixels. Try using -lowres or -vf \"scale=w:h\"\n" - "to reduce the image size.\n", vp->width, vp->height ); - do_exit(is); - } - - SDL_LockMutex(is->pictq_mutex); - vp->allocated = 1; - SDL_CondSignal(is->pictq_cond); - SDL_UnlockMutex(is->pictq_mutex); -} - -static void duplicate_right_border_pixels(SDL_Overlay *bmp) { - int i, width, height; - Uint8 *p, *maxp; - for (i = 0; i < 3; i++) { - width = bmp->w; - height = bmp->h; - if (i > 0) { - width >>= 1; - height >>= 1; - } - if (bmp->pitches[i] > width) { - maxp = bmp->pixels[i] + bmp->pitches[i] * height - 1; - for (p = bmp->pixels[i] + width - 1; p < maxp; p += bmp->pitches[i]) - *(p+1) = *p; - } - } -} - -static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos, int serial) -{ - VideoPicture *vp; - -#if defined(DEBUG_SYNC) && 0 - printf("frame_type=%c pts=%0.3f\n", - av_get_picture_type_char(src_frame->pict_type), pts); -#endif - - /* wait until we have space to put a new picture */ - SDL_LockMutex(is->pictq_mutex); - - /* keep the last already displayed picture in the queue */ - while (is->pictq_size >= VIDEO_PICTURE_QUEUE_SIZE - 2 && - !is->videoq.abort_request) { - SDL_CondWait(is->pictq_cond, is->pictq_mutex); - } - SDL_UnlockMutex(is->pictq_mutex); - - if (is->videoq.abort_request) - return -1; - - vp = &is->pictq[is->pictq_windex]; - -#if CONFIG_AVFILTER - vp->sar = src_frame->sample_aspect_ratio; -#else - vp->sar = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame); -#endif - - /* alloc or resize hardware picture buffer */ - if (!vp->bmp || vp->reallocate || !vp->allocated || - vp->width != src_frame->width || - vp->height != src_frame->height) { - SDL_Event event; - - vp->allocated = 0; - vp->reallocate = 0; - vp->width = src_frame->width; - vp->height = src_frame->height; - - /* the allocation must be done in the main thread to avoid - locking problems. */ - event.type = FF_ALLOC_EVENT; - event.user.data1 = is; - SDL_PushEvent(&event); - - /* wait until the picture is allocated */ - SDL_LockMutex(is->pictq_mutex); - while (!vp->allocated && !is->videoq.abort_request) { - SDL_CondWait(is->pictq_cond, is->pictq_mutex); - } - /* if the queue is aborted, we have to pop the pending ALLOC event or wait for the allocation to complete */ - if (is->videoq.abort_request && SDL_PeepEvents(&event, 1, SDL_GETEVENT, SDL_EVENTMASK(FF_ALLOC_EVENT)) != 1) { - while (!vp->allocated) { - SDL_CondWait(is->pictq_cond, is->pictq_mutex); - } - } - SDL_UnlockMutex(is->pictq_mutex); - - if (is->videoq.abort_request) - return -1; - } - - /* if the frame is not skipped, then display it */ - if (vp->bmp) { - AVPicture pict = { { 0 } }; - - /* get a pointer on the bitmap */ - SDL_LockYUVOverlay (vp->bmp); - - pict.data[0] = vp->bmp->pixels[0]; - pict.data[1] = vp->bmp->pixels[2]; - pict.data[2] = vp->bmp->pixels[1]; - - pict.linesize[0] = vp->bmp->pitches[0]; - pict.linesize[1] = vp->bmp->pitches[2]; - pict.linesize[2] = vp->bmp->pitches[1]; - -#if CONFIG_AVFILTER - // FIXME use direct rendering - av_picture_copy(&pict, (AVPicture *)src_frame, - src_frame->format, vp->width, vp->height); -#else - av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags); - is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx, - vp->width, vp->height, src_frame->format, vp->width, vp->height, - AV_PIX_FMT_YUV420P, sws_flags, NULL, NULL, NULL); - if (is->img_convert_ctx == NULL) { - fprintf(stderr, "Cannot initialize the conversion context\n"); - exit(1); - } - sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize, - 0, vp->height, pict.data, pict.linesize); -#endif - /* workaround SDL PITCH_WORKAROUND */ - duplicate_right_border_pixels(vp->bmp); - /* update the bitmap content */ - SDL_UnlockYUVOverlay(vp->bmp); - - vp->pts = pts; - vp->pos = pos; - vp->serial = serial; - - /* now we can update the picture count */ - if (++is->pictq_windex == VIDEO_PICTURE_QUEUE_SIZE) - is->pictq_windex = 0; - SDL_LockMutex(is->pictq_mutex); - is->pictq_size++; - SDL_UnlockMutex(is->pictq_mutex); - } - return 0; -} - -static int get_video_frame(VideoState *is, AVFrame *frame, int64_t *pts, AVPacket *pkt, int *serial) -{ - int got_picture; - - if (packet_queue_get(&is->videoq, pkt, 1, serial) < 0) - return -1; - - if (pkt->data == flush_pkt.data) { - avcodec_flush_buffers(is->video_st->codec); - - SDL_LockMutex(is->pictq_mutex); - // Make sure there are no long delay timers (ideally we should just flush the queue but that's harder) - while (is->pictq_size && !is->videoq.abort_request) { - SDL_CondWait(is->pictq_cond, is->pictq_mutex); - } - is->video_current_pos = -1; - is->frame_last_pts = AV_NOPTS_VALUE; - is->frame_last_duration = 0; - is->frame_timer = (double)av_gettime() / 1000000.0; - is->frame_last_dropped_pts = AV_NOPTS_VALUE; - SDL_UnlockMutex(is->pictq_mutex); - return 0; - } - - if(avcodec_decode_video2(is->video_st->codec, frame, &got_picture, pkt) < 0) - return 0; - - if (got_picture) { - int ret = 1; - - if (decoder_reorder_pts == -1) { - *pts = av_frame_get_best_effort_timestamp(frame); - } else if (decoder_reorder_pts) { - *pts = frame->pkt_pts; - } else { - *pts = frame->pkt_dts; - } - - if (*pts == AV_NOPTS_VALUE) { - *pts = 0; - } - - if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) { - SDL_LockMutex(is->pictq_mutex); - if (is->frame_last_pts != AV_NOPTS_VALUE && *pts) { - double clockdiff = get_video_clock(is) - get_master_clock(is); - double dpts = av_q2d(is->video_st->time_base) * *pts; - double ptsdiff = dpts - is->frame_last_pts; - if (!isnan(clockdiff) && fabs(clockdiff) < AV_NOSYNC_THRESHOLD && - ptsdiff > 0 && ptsdiff < AV_NOSYNC_THRESHOLD && - clockdiff + ptsdiff - is->frame_last_filter_delay < 0) { - is->frame_last_dropped_pos = pkt->pos; - is->frame_last_dropped_pts = dpts; - is->frame_drops_early++; - ret = 0; - } - } - SDL_UnlockMutex(is->pictq_mutex); - } - - return ret; - } - return 0; -} - -#if CONFIG_AVFILTER -static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph, - AVFilterContext *source_ctx, AVFilterContext *sink_ctx) -{ - int ret; - AVFilterInOut *outputs = NULL, *inputs = NULL; - - if (filtergraph) { - outputs = avfilter_inout_alloc(); - inputs = avfilter_inout_alloc(); - if (!outputs || !inputs) { - ret = AVERROR(ENOMEM); - goto fail; - } - - outputs->name = av_strdup("in"); - outputs->filter_ctx = source_ctx; - outputs->pad_idx = 0; - outputs->next = NULL; - - inputs->name = av_strdup("out"); - inputs->filter_ctx = sink_ctx; - inputs->pad_idx = 0; - inputs->next = NULL; - - if ((ret = avfilter_graph_parse(graph, filtergraph, &inputs, &outputs, NULL)) < 0) - goto fail; - } else { - if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0) - goto fail; - } - - ret = avfilter_graph_config(graph, NULL); -fail: - avfilter_inout_free(&outputs); - avfilter_inout_free(&inputs); - return ret; -} - -static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame) -{ - static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_NONE }; - char sws_flags_str[128]; - char buffersrc_args[256]; - int ret; - AVBufferSinkParams *buffersink_params = av_buffersink_params_alloc(); - AVFilterContext *filt_src = NULL, *filt_out = NULL, *filt_crop; - AVCodecContext *codec = is->video_st->codec; - - if (!buffersink_params) - return AVERROR(ENOMEM); - - av_opt_get_int(sws_opts, "sws_flags", 0, &sws_flags); - snprintf(sws_flags_str, sizeof(sws_flags_str), "flags=%"PRId64, sws_flags); - graph->scale_sws_opts = av_strdup(sws_flags_str); - - snprintf(buffersrc_args, sizeof(buffersrc_args), - "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d", - frame->width, frame->height, frame->format, - is->video_st->time_base.num, is->video_st->time_base.den, - codec->sample_aspect_ratio.num, FFMAX(codec->sample_aspect_ratio.den, 1)); - - if ((ret = avfilter_graph_create_filter(&filt_src, - avfilter_get_by_name("buffer"), - "ffplay_buffer", buffersrc_args, NULL, - graph)) < 0) - goto fail; - - buffersink_params->pixel_fmts = pix_fmts; - ret = avfilter_graph_create_filter(&filt_out, - avfilter_get_by_name("buffersink"), - "ffplay_buffersink", NULL, buffersink_params, graph); - if (ret < 0) - goto fail; - - /* SDL YUV code is not handling odd width/height for some driver - * combinations, therefore we crop the picture to an even width/height. */ - if ((ret = avfilter_graph_create_filter(&filt_crop, - avfilter_get_by_name("crop"), - "ffplay_crop", "floor(in_w/2)*2:floor(in_h/2)*2", NULL, graph)) < 0) - goto fail; - if ((ret = avfilter_link(filt_crop, 0, filt_out, 0)) < 0) - goto fail; - - if ((ret = configure_filtergraph(graph, vfilters, filt_src, filt_crop)) < 0) - goto fail; - - is->in_video_filter = filt_src; - is->out_video_filter = filt_out; - -fail: - av_freep(&buffersink_params); - return ret; -} - -static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format) -{ - static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE }; - int sample_rates[2] = { 0, -1 }; - int64_t channel_layouts[2] = { 0, -1 }; - int channels[2] = { 0, -1 }; - AVFilterContext *filt_asrc = NULL, *filt_asink = NULL; - char asrc_args[256]; - AVABufferSinkParams *asink_params = NULL; - int ret; - - avfilter_graph_free(&is->agraph); - if (!(is->agraph = avfilter_graph_alloc())) - return AVERROR(ENOMEM); - - ret = snprintf(asrc_args, sizeof(asrc_args), - "sample_rate=%d:sample_fmt=%s:channels=%d", - is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt), - is->audio_filter_src.channels); - if (is->audio_filter_src.channel_layout) - snprintf(asrc_args + ret, sizeof(asrc_args) - ret, - ":channel_layout=0x%"PRIx64, is->audio_filter_src.channel_layout); - - ret = avfilter_graph_create_filter(&filt_asrc, - avfilter_get_by_name("abuffer"), "ffplay_abuffer", - asrc_args, NULL, is->agraph); - if (ret < 0) - goto end; - - if (!(asink_params = av_abuffersink_params_alloc())) { - ret = AVERROR(ENOMEM); - goto end; - } - asink_params->sample_fmts = sample_fmts; - - asink_params->all_channel_counts = 1; - if (force_output_format) { - channel_layouts[0] = is->audio_tgt.channel_layout; - asink_params->channel_layouts = channel_layouts; - asink_params->all_channel_counts = 0; - channels[0] = is->audio_tgt.channels; - asink_params->channel_counts = channels; - asink_params->all_channel_counts = 0; - sample_rates[0] = is->audio_tgt.freq; - asink_params->sample_rates = sample_rates; - } - - ret = avfilter_graph_create_filter(&filt_asink, - avfilter_get_by_name("abuffersink"), "ffplay_abuffersink", - NULL, asink_params, is->agraph); - if (ret < 0) - goto end; - - if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0) - goto end; - - is->in_audio_filter = filt_asrc; - is->out_audio_filter = filt_asink; - -end: - av_freep(&asink_params); - if (ret < 0) - avfilter_graph_free(&is->agraph); - return ret; -} -#endif /* CONFIG_AVFILTER */ - -static int video_thread(void *arg) -{ - AVPacket pkt = { 0 }; - VideoState *is = arg; - AVFrame *frame = av_frame_alloc(); - int64_t pts_int = AV_NOPTS_VALUE, pos = -1; - double pts; - int ret; - int serial = 0; - -#if CONFIG_AVFILTER - AVFilterGraph *graph = avfilter_graph_alloc(); - AVFilterContext *filt_out = NULL, *filt_in = NULL; - int last_w = 0; - int last_h = 0; - enum AVPixelFormat last_format = -2; - int last_serial = -1; -#endif - - for (;;) { -#if CONFIG_AVFILTER - AVRational tb; -#endif - while (is->paused && !is->videoq.abort_request) - SDL_Delay(10); - - avcodec_get_frame_defaults(frame); - av_free_packet(&pkt); - - ret = get_video_frame(is, frame, &pts_int, &pkt, &serial); - if (ret < 0) - goto the_end; - - if (!ret) - continue; - -#if CONFIG_AVFILTER - if ( last_w != frame->width - || last_h != frame->height - || last_format != frame->format - || last_serial != serial) { - av_log(NULL, AV_LOG_DEBUG, - "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n", - last_w, last_h, - (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial, - frame->width, frame->height, - (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), serial); - avfilter_graph_free(&graph); - graph = avfilter_graph_alloc(); - if ((ret = configure_video_filters(graph, is, vfilters, frame)) < 0) { - SDL_Event event; - event.type = FF_QUIT_EVENT; - event.user.data1 = is; - SDL_PushEvent(&event); - av_free_packet(&pkt); - goto the_end; - } - filt_in = is->in_video_filter; - filt_out = is->out_video_filter; - last_w = frame->width; - last_h = frame->height; - last_format = frame->format; - last_serial = serial; - } - - frame->pts = pts_int; - frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame); - ret = av_buffersrc_add_frame(filt_in, frame); - if (ret < 0) - goto the_end; - av_frame_unref(frame); - avcodec_get_frame_defaults(frame); - av_free_packet(&pkt); - - while (ret >= 0) { - is->frame_last_returned_time = av_gettime() / 1000000.0; - - ret = av_buffersink_get_frame_flags(filt_out, frame, 0); - if (ret < 0) { - ret = 0; - break; - } - - is->frame_last_filter_delay = av_gettime() / 1000000.0 - is->frame_last_returned_time; - if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0) - is->frame_last_filter_delay = 0; - - pts_int = frame->pts; - tb = filt_out->inputs[0]->time_base; - pos = av_frame_get_pkt_pos(frame); - if (av_cmp_q(tb, is->video_st->time_base)) { - av_unused int64_t pts1 = pts_int; - pts_int = av_rescale_q(pts_int, tb, is->video_st->time_base); - av_dlog(NULL, "video_thread(): " - "tb:%d/%d pts:%"PRId64" -> tb:%d/%d pts:%"PRId64"\n", - tb.num, tb.den, pts1, - is->video_st->time_base.num, is->video_st->time_base.den, pts_int); - } - pts = pts_int * av_q2d(is->video_st->time_base); - ret = queue_picture(is, frame, pts, pos, serial); - av_frame_unref(frame); - } -#else - pts = pts_int * av_q2d(is->video_st->time_base); - ret = queue_picture(is, frame, pts, pkt.pos, serial); - av_frame_unref(frame); -#endif - - if (ret < 0) - goto the_end; - } - the_end: - avcodec_flush_buffers(is->video_st->codec); -#if CONFIG_AVFILTER - avfilter_graph_free(&graph); -#endif - av_free_packet(&pkt); - av_frame_free(&frame); - return 0; -} - -static int subtitle_thread(void *arg) -{ - VideoState *is = arg; - SubPicture *sp; - AVPacket pkt1, *pkt = &pkt1; - int got_subtitle; - double pts; - int i, j; - int r, g, b, y, u, v, a; - - for (;;) { - while (is->paused && !is->subtitleq.abort_request) { - SDL_Delay(10); - } - if (packet_queue_get(&is->subtitleq, pkt, 1, NULL) < 0) - break; - - if (pkt->data == flush_pkt.data) { - avcodec_flush_buffers(is->subtitle_st->codec); - continue; - } - SDL_LockMutex(is->subpq_mutex); - while (is->subpq_size >= SUBPICTURE_QUEUE_SIZE && - !is->subtitleq.abort_request) { - SDL_CondWait(is->subpq_cond, is->subpq_mutex); - } - SDL_UnlockMutex(is->subpq_mutex); - - if (is->subtitleq.abort_request) - return 0; - - sp = &is->subpq[is->subpq_windex]; - - /* NOTE: ipts is the PTS of the _first_ picture beginning in - this packet, if any */ - pts = 0; - if (pkt->pts != AV_NOPTS_VALUE) - pts = av_q2d(is->subtitle_st->time_base) * pkt->pts; - - avcodec_decode_subtitle2(is->subtitle_st->codec, &sp->sub, - &got_subtitle, pkt); - if (got_subtitle && sp->sub.format == 0) { - if (sp->sub.pts != AV_NOPTS_VALUE) - pts = sp->sub.pts / (double)AV_TIME_BASE; - sp->pts = pts; - - for (i = 0; i < sp->sub.num_rects; i++) - { - for (j = 0; j < sp->sub.rects[i]->nb_colors; j++) - { - RGBA_IN(r, g, b, a, (uint32_t*)sp->sub.rects[i]->pict.data[1] + j); - y = RGB_TO_Y_CCIR(r, g, b); - u = RGB_TO_U_CCIR(r, g, b, 0); - v = RGB_TO_V_CCIR(r, g, b, 0); - YUVA_OUT((uint32_t*)sp->sub.rects[i]->pict.data[1] + j, y, u, v, a); - } - } - - /* now we can update the picture count */ - if (++is->subpq_windex == SUBPICTURE_QUEUE_SIZE) - is->subpq_windex = 0; - SDL_LockMutex(is->subpq_mutex); - is->subpq_size++; - SDL_UnlockMutex(is->subpq_mutex); - } - av_free_packet(pkt); - } - return 0; -} - -/* copy samples for viewing in editor window */ -static void update_sample_display(VideoState *is, short *samples, int samples_size) -{ - int size, len; - - size = samples_size / sizeof(short); - while (size > 0) { - len = SAMPLE_ARRAY_SIZE - is->sample_array_index; - if (len > size) - len = size; - memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short)); - samples += len; - is->sample_array_index += len; - if (is->sample_array_index >= SAMPLE_ARRAY_SIZE) - is->sample_array_index = 0; - size -= len; - } -} - -/* return the wanted number of samples to get better sync if sync_type is video - * or external master clock */ -static int synchronize_audio(VideoState *is, int nb_samples) -{ - int wanted_nb_samples = nb_samples; - - /* if not master, then we try to remove or add samples to correct the clock */ - if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) { - double diff, avg_diff; - int min_nb_samples, max_nb_samples; - - diff = get_audio_clock(is) - get_master_clock(is); - - if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) { - is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum; - if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) { - /* not enough measures to have a correct estimate */ - is->audio_diff_avg_count++; - } else { - /* estimate the A-V difference */ - avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef); - - if (fabs(avg_diff) >= is->audio_diff_threshold) { - wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq); - min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100)); - max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100)); - wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples); - } - av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n", - diff, avg_diff, wanted_nb_samples - nb_samples, - is->audio_clock, is->audio_diff_threshold); - } - } else { - /* too big difference : may be initial PTS errors, so - reset A-V filter */ - is->audio_diff_avg_count = 0; - is->audio_diff_cum = 0; - } - } - - return wanted_nb_samples; -} - -/** - * Decode one audio frame and return its uncompressed size. - * - * The processed audio frame is decoded, converted if required, and - * stored in is->audio_buf, with size in bytes given by the return - * value. - */ -static int audio_decode_frame(VideoState *is) -{ - AVPacket *pkt_temp = &is->audio_pkt_temp; - AVPacket *pkt = &is->audio_pkt; - AVCodecContext *dec = is->audio_st->codec; - int len1, data_size, resampled_data_size; - int64_t dec_channel_layout; - int got_frame; - av_unused double audio_clock0; - int new_packet = 0; - int flush_complete = 0; - int wanted_nb_samples; - AVRational tb; - - for (;;) { - /* NOTE: the audio packet can contain several frames */ - while (pkt_temp->size > 0 || (!pkt_temp->data && new_packet)) { - if (!is->frame) { - if (!(is->frame = avcodec_alloc_frame())) - return AVERROR(ENOMEM); - } else { - av_frame_unref(is->frame); - avcodec_get_frame_defaults(is->frame); - } - - if (is->audioq.serial != is->audio_pkt_temp_serial) - break; - - if (is->paused) - return -1; - - if (flush_complete) - break; - new_packet = 0; - len1 = avcodec_decode_audio4(dec, is->frame, &got_frame, pkt_temp); - if (len1 < 0) { - /* if error, we skip the frame */ - pkt_temp->size = 0; - break; - } - - pkt_temp->data += len1; - pkt_temp->size -= len1; - - if (!got_frame) { - /* stop sending empty packets if the decoder is finished */ - if (!pkt_temp->data && dec->codec->capabilities & CODEC_CAP_DELAY) - flush_complete = 1; - continue; - } - - if (is->frame->pts == AV_NOPTS_VALUE && pkt_temp->pts != AV_NOPTS_VALUE) - is->frame->pts = av_rescale_q(pkt_temp->pts, is->audio_st->time_base, dec->time_base); - if (pkt_temp->pts != AV_NOPTS_VALUE) - pkt_temp->pts += (double) is->frame->nb_samples / is->frame->sample_rate / av_q2d(is->audio_st->time_base); - tb = dec->time_base; - -#if CONFIG_AVFILTER - { - int ret; - int reconfigure; - - dec_channel_layout = get_valid_channel_layout(is->frame->channel_layout, av_frame_get_channels(is->frame)); - - reconfigure = - cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels, - is->frame->format, av_frame_get_channels(is->frame)) || - is->audio_filter_src.channel_layout != dec_channel_layout || - is->audio_filter_src.freq != is->frame->sample_rate || - is->audio_pkt_temp_serial != is->audio_last_serial; - - if (reconfigure) { - char buf1[1024], buf2[1024]; - av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout); - av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout); - av_log(NULL, AV_LOG_DEBUG, - "Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n", - is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, is->audio_last_serial, - is->frame->sample_rate, av_frame_get_channels(is->frame), av_get_sample_fmt_name(is->frame->format), buf2, is->audio_pkt_temp_serial); - - is->audio_filter_src.fmt = is->frame->format; - is->audio_filter_src.channels = av_frame_get_channels(is->frame); - is->audio_filter_src.channel_layout = dec_channel_layout; - is->audio_filter_src.freq = is->frame->sample_rate; - is->audio_last_serial = is->audio_pkt_temp_serial; - - if ((ret = configure_audio_filters(is, afilters, 1)) < 0) - return ret; - } - - if ((ret = av_buffersrc_add_frame(is->in_audio_filter, is->frame)) < 0) - return ret; - av_frame_unref(is->frame); - if ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, is->frame, 0)) < 0) - return ret; - tb = is->out_audio_filter->inputs[0]->time_base; - } -#endif - - data_size = av_samples_get_buffer_size(NULL, av_frame_get_channels(is->frame), - is->frame->nb_samples, - is->frame->format, 1); - - dec_channel_layout = - (is->frame->channel_layout && av_frame_get_channels(is->frame) == av_get_channel_layout_nb_channels(is->frame->channel_layout)) ? - is->frame->channel_layout : av_get_default_channel_layout(av_frame_get_channels(is->frame)); - wanted_nb_samples = synchronize_audio(is, is->frame->nb_samples); - - if (is->frame->format != is->audio_src.fmt || - dec_channel_layout != is->audio_src.channel_layout || - is->frame->sample_rate != is->audio_src.freq || - (wanted_nb_samples != is->frame->nb_samples && !is->swr_ctx)) { - swr_free(&is->swr_ctx); - is->swr_ctx = swr_alloc_set_opts(NULL, - is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq, - dec_channel_layout, is->frame->format, is->frame->sample_rate, - 0, NULL); - if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) { - fprintf(stderr, "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n", - is->frame->sample_rate, av_get_sample_fmt_name(is->frame->format), av_frame_get_channels(is->frame), - is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels); - break; - } - is->audio_src.channel_layout = dec_channel_layout; - is->audio_src.channels = av_frame_get_channels(is->frame); - is->audio_src.freq = is->frame->sample_rate; - is->audio_src.fmt = is->frame->format; - } - - if (is->swr_ctx) { - const uint8_t **in = (const uint8_t **)is->frame->extended_data; - uint8_t **out = &is->audio_buf1; - int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate + 256; - int out_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0); - int len2; - if (wanted_nb_samples != is->frame->nb_samples) { - if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - is->frame->nb_samples) * is->audio_tgt.freq / is->frame->sample_rate, - wanted_nb_samples * is->audio_tgt.freq / is->frame->sample_rate) < 0) { - fprintf(stderr, "swr_set_compensation() failed\n"); - break; - } - } - av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size); - if (!is->audio_buf1) - return AVERROR(ENOMEM); - len2 = swr_convert(is->swr_ctx, out, out_count, in, is->frame->nb_samples); - if (len2 < 0) { - fprintf(stderr, "swr_convert() failed\n"); - break; - } - if (len2 == out_count) { - fprintf(stderr, "warning: audio buffer is probably too small\n"); - swr_init(is->swr_ctx); - } - is->audio_buf = is->audio_buf1; - resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt); - } else { - is->audio_buf = is->frame->data[0]; - resampled_data_size = data_size; - } - - audio_clock0 = is->audio_clock; - /* update the audio clock with the pts */ - if (is->frame->pts != AV_NOPTS_VALUE) { - is->audio_clock = is->frame->pts * av_q2d(tb) + (double) is->frame->nb_samples / is->frame->sample_rate; - is->audio_clock_serial = is->audio_pkt_temp_serial; - } -#ifdef DEBUG - { - static double last_clock; - printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n", - is->audio_clock - last_clock, - is->audio_clock, audio_clock0); - last_clock = is->audio_clock; - } -#endif - return resampled_data_size; - } - - /* free the current packet */ - if (pkt->data) - av_free_packet(pkt); - memset(pkt_temp, 0, sizeof(*pkt_temp)); - - if (is->audioq.abort_request) { - return -1; - } - - if (is->audioq.nb_packets == 0) - SDL_CondSignal(is->continue_read_thread); - - /* read next packet */ - if ((new_packet = packet_queue_get(&is->audioq, pkt, 1, &is->audio_pkt_temp_serial)) < 0) - return -1; - - if (pkt->data == flush_pkt.data) { - avcodec_flush_buffers(dec); - flush_complete = 0; - } - - *pkt_temp = *pkt; - } -} - -/* prepare a new audio buffer */ -static void sdl_audio_callback(void *opaque, Uint8 *stream, int len) -{ - VideoState *is = opaque; - int audio_size, len1; - int bytes_per_sec; - int frame_size = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, 1, is->audio_tgt.fmt, 1); - - audio_callback_time = av_gettime(); - - while (len > 0) { - if (is->audio_buf_index >= is->audio_buf_size) { - audio_size = audio_decode_frame(is); - if (audio_size < 0) { - /* if error, just output silence */ - is->audio_buf = is->silence_buf; - is->audio_buf_size = sizeof(is->silence_buf) / frame_size * frame_size; - } else { - if (is->show_mode != SHOW_MODE_VIDEO) - update_sample_display(is, (int16_t *)is->audio_buf, audio_size); - is->audio_buf_size = audio_size; - } - is->audio_buf_index = 0; - } - len1 = is->audio_buf_size - is->audio_buf_index; - if (len1 > len) - len1 = len; - memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1); - len -= len1; - stream += len1; - is->audio_buf_index += len1; - } - bytes_per_sec = is->audio_tgt.freq * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt); - is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index; - /* Let's assume the audio driver that is used by SDL has two periods. */ - is->audio_current_pts = is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / bytes_per_sec; - is->audio_current_pts_drift = is->audio_current_pts - audio_callback_time / 1000000.0; - if (is->audioq.serial == is->audio_clock_serial) - check_external_clock_sync(is, is->audio_current_pts); -} - -static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params) -{ - SDL_AudioSpec wanted_spec, spec; - const char *env; - const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6}; - - env = SDL_getenv("SDL_AUDIO_CHANNELS"); - if (env) { - wanted_nb_channels = atoi(env); - wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); - } - if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) { - wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels); - wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX; - } - wanted_spec.channels = av_get_channel_layout_nb_channels(wanted_channel_layout); - wanted_spec.freq = wanted_sample_rate; - if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) { - fprintf(stderr, "Invalid sample rate or channel count!\n"); - return -1; - } - wanted_spec.format = AUDIO_S16SYS; - wanted_spec.silence = 0; - wanted_spec.samples = SDL_AUDIO_BUFFER_SIZE; - wanted_spec.callback = sdl_audio_callback; - wanted_spec.userdata = opaque; - while (SDL_OpenAudio(&wanted_spec, &spec) < 0) { - fprintf(stderr, "SDL_OpenAudio (%d channels): %s\n", wanted_spec.channels, SDL_GetError()); - wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)]; - if (!wanted_spec.channels) { - fprintf(stderr, "No more channel combinations to try, audio open failed\n"); - return -1; - } - wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels); - } - if (spec.format != AUDIO_S16SYS) { - fprintf(stderr, "SDL advised audio format %d is not supported!\n", spec.format); - return -1; - } - if (spec.channels != wanted_spec.channels) { - wanted_channel_layout = av_get_default_channel_layout(spec.channels); - if (!wanted_channel_layout) { - fprintf(stderr, "SDL advised channel count %d is not supported!\n", spec.channels); - return -1; - } - } - - audio_hw_params->fmt = AV_SAMPLE_FMT_S16; - audio_hw_params->freq = spec.freq; - audio_hw_params->channel_layout = wanted_channel_layout; - audio_hw_params->channels = spec.channels; - return spec.size; -} - -/* open a given stream. Return 0 if OK */ -static int stream_component_open(VideoState *is, int stream_index) -{ - AVFormatContext *ic = is->ic; - AVCodecContext *avctx; - AVCodec *codec; - const char *forced_codec_name = NULL; - AVDictionary *opts; - AVDictionaryEntry *t = NULL; - int sample_rate, nb_channels; - int64_t channel_layout; - int ret; - - if (stream_index < 0 || stream_index >= ic->nb_streams) - return -1; - avctx = ic->streams[stream_index]->codec; - - codec = avcodec_find_decoder(avctx->codec_id); - - switch(avctx->codec_type){ - case AVMEDIA_TYPE_AUDIO : is->last_audio_stream = stream_index; forced_codec_name = audio_codec_name; break; - case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break; - case AVMEDIA_TYPE_VIDEO : is->last_video_stream = stream_index; forced_codec_name = video_codec_name; break; - } - if (forced_codec_name) - codec = avcodec_find_decoder_by_name(forced_codec_name); - if (!codec) { - if (forced_codec_name) fprintf(stderr, "No codec could be found with name '%s'\n", forced_codec_name); - else fprintf(stderr, "No codec could be found with id %d\n", avctx->codec_id); - return -1; - } - - avctx->codec_id = codec->id; - avctx->workaround_bugs = workaround_bugs; - avctx->lowres = lowres; - if(avctx->lowres > codec->max_lowres){ - av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n", - codec->max_lowres); - avctx->lowres= codec->max_lowres; - } - avctx->idct_algo = idct; - avctx->error_concealment = error_concealment; - - if(avctx->lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE; - if (fast) avctx->flags2 |= CODEC_FLAG2_FAST; - if(codec->capabilities & CODEC_CAP_DR1) - avctx->flags |= CODEC_FLAG_EMU_EDGE; - - opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec); - if (!av_dict_get(opts, "threads", NULL, 0)) - av_dict_set(&opts, "threads", "auto", 0); - if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO) - av_dict_set(&opts, "refcounted_frames", "1", 0); - if (avcodec_open2(avctx, codec, &opts) < 0) - return -1; - if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { - av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); - return AVERROR_OPTION_NOT_FOUND; - } - - ic->streams[stream_index]->discard = AVDISCARD_DEFAULT; - switch (avctx->codec_type) { - case AVMEDIA_TYPE_AUDIO: -#if CONFIG_AVFILTER - { - AVFilterLink *link; - - is->audio_filter_src.freq = avctx->sample_rate; - is->audio_filter_src.channels = avctx->channels; - is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels); - is->audio_filter_src.fmt = avctx->sample_fmt; - if ((ret = configure_audio_filters(is, afilters, 0)) < 0) - return ret; - link = is->out_audio_filter->inputs[0]; - sample_rate = link->sample_rate; - nb_channels = link->channels; - channel_layout = link->channel_layout; - } -#else - sample_rate = avctx->sample_rate; - nb_channels = avctx->channels; - channel_layout = avctx->channel_layout; -#endif - - /* prepare audio output */ - if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0) - return ret; - is->audio_hw_buf_size = ret; - is->audio_src = is->audio_tgt; - is->audio_buf_size = 0; - is->audio_buf_index = 0; - - /* init averaging filter */ - is->audio_diff_avg_coef = exp(log(0.01) / AUDIO_DIFF_AVG_NB); - is->audio_diff_avg_count = 0; - /* since we do not have a precise anough audio fifo fullness, - we correct audio sync only if larger than this threshold */ - is->audio_diff_threshold = 2.0 * is->audio_hw_buf_size / av_samples_get_buffer_size(NULL, is->audio_tgt.channels, is->audio_tgt.freq, is->audio_tgt.fmt, 1); - - memset(&is->audio_pkt, 0, sizeof(is->audio_pkt)); - memset(&is->audio_pkt_temp, 0, sizeof(is->audio_pkt_temp)); - - is->audio_stream = stream_index; - is->audio_st = ic->streams[stream_index]; - - packet_queue_start(&is->audioq); - SDL_PauseAudio(0); - break; - case AVMEDIA_TYPE_VIDEO: - is->video_stream = stream_index; - is->video_st = ic->streams[stream_index]; - - packet_queue_start(&is->videoq); - is->video_tid = SDL_CreateThread(video_thread, is); - break; - case AVMEDIA_TYPE_SUBTITLE: - is->subtitle_stream = stream_index; - is->subtitle_st = ic->streams[stream_index]; - packet_queue_start(&is->subtitleq); - - is->subtitle_tid = SDL_CreateThread(subtitle_thread, is); - break; - default: - break; - } - return 0; -} - -static void stream_component_close(VideoState *is, int stream_index) -{ - AVFormatContext *ic = is->ic; - AVCodecContext *avctx; - - if (stream_index < 0 || stream_index >= ic->nb_streams) - return; - avctx = ic->streams[stream_index]->codec; - - switch (avctx->codec_type) { - case AVMEDIA_TYPE_AUDIO: - packet_queue_abort(&is->audioq); - - SDL_CloseAudio(); - - packet_queue_flush(&is->audioq); - av_free_packet(&is->audio_pkt); - swr_free(&is->swr_ctx); - av_freep(&is->audio_buf1); - is->audio_buf1_size = 0; - is->audio_buf = NULL; - av_frame_free(&is->frame); - - if (is->rdft) { - av_rdft_end(is->rdft); - av_freep(&is->rdft_data); - is->rdft = NULL; - is->rdft_bits = 0; - } -#if CONFIG_AVFILTER - avfilter_graph_free(&is->agraph); -#endif - break; - case AVMEDIA_TYPE_VIDEO: - packet_queue_abort(&is->videoq); - - /* note: we also signal this mutex to make sure we deblock the - video thread in all cases */ - SDL_LockMutex(is->pictq_mutex); - SDL_CondSignal(is->pictq_cond); - SDL_UnlockMutex(is->pictq_mutex); - - SDL_WaitThread(is->video_tid, NULL); - - packet_queue_flush(&is->videoq); - break; - case AVMEDIA_TYPE_SUBTITLE: - packet_queue_abort(&is->subtitleq); - - /* note: we also signal this mutex to make sure we deblock the - video thread in all cases */ - SDL_LockMutex(is->subpq_mutex); - is->subtitle_stream_changed = 1; - - SDL_CondSignal(is->subpq_cond); - SDL_UnlockMutex(is->subpq_mutex); - - SDL_WaitThread(is->subtitle_tid, NULL); - - packet_queue_flush(&is->subtitleq); - break; - default: - break; - } - - ic->streams[stream_index]->discard = AVDISCARD_ALL; - avcodec_close(avctx); - switch (avctx->codec_type) { - case AVMEDIA_TYPE_AUDIO: - is->audio_st = NULL; - is->audio_stream = -1; - break; - case AVMEDIA_TYPE_VIDEO: - is->video_st = NULL; - is->video_stream = -1; - break; - case AVMEDIA_TYPE_SUBTITLE: - is->subtitle_st = NULL; - is->subtitle_stream = -1; - break; - default: - break; - } -} - -static int decode_interrupt_cb(void *ctx) -{ - VideoState *is = ctx; - return is->abort_request; -} - -static int is_realtime(AVFormatContext *s) -{ - if( !strcmp(s->iformat->name, "rtp") - || !strcmp(s->iformat->name, "rtsp") - || !strcmp(s->iformat->name, "sdp") - ) - return 1; - - if(s->pb && ( !strncmp(s->filename, "rtp:", 4) - || !strncmp(s->filename, "udp:", 4) - ) - ) - return 1; - return 0; -} - -/* this thread gets the stream from the disk or the network */ -static int read_thread(void *arg) -{ - VideoState *is = arg; - AVFormatContext *ic = NULL; - int err, i, ret; - int st_index[AVMEDIA_TYPE_NB]; - AVPacket pkt1, *pkt = &pkt1; - int eof = 0; - int pkt_in_play_range = 0; - AVDictionaryEntry *t; - AVDictionary **opts; - int orig_nb_streams; - SDL_mutex *wait_mutex = SDL_CreateMutex(); - - memset(st_index, -1, sizeof(st_index)); - is->last_video_stream = is->video_stream = -1; - is->last_audio_stream = is->audio_stream = -1; - is->last_subtitle_stream = is->subtitle_stream = -1; - - ic = avformat_alloc_context(); - ic->interrupt_callback.callback = decode_interrupt_cb; - ic->interrupt_callback.opaque = is; - err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts); - if (err < 0) { - print_error(is->filename, err); - ret = -1; - goto fail; - } - if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) { - av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key); - ret = AVERROR_OPTION_NOT_FOUND; - goto fail; - } - is->ic = ic; - - if (genpts) - ic->flags |= AVFMT_FLAG_GENPTS; - - opts = setup_find_stream_info_opts(ic, codec_opts); - orig_nb_streams = ic->nb_streams; - - err = avformat_find_stream_info(ic, opts); - if (err < 0) { - fprintf(stderr, "%s: could not find codec parameters\n", is->filename); - ret = -1; - goto fail; - } - for (i = 0; i < orig_nb_streams; i++) - av_dict_free(&opts[i]); - av_freep(&opts); - - if (ic->pb) - ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use url_feof() to test for the end - - if (seek_by_bytes < 0) - seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT); - - is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0; - - /* if seeking requested, we execute it */ - if (start_time != AV_NOPTS_VALUE) { - int64_t timestamp; - - timestamp = start_time; - /* add the stream start time */ - if (ic->start_time != AV_NOPTS_VALUE) - timestamp += ic->start_time; - ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0); - if (ret < 0) { - fprintf(stderr, "%s: could not seek to position %0.3f\n", - is->filename, (double)timestamp / AV_TIME_BASE); - } - } - - is->realtime = is_realtime(ic); - - for (i = 0; i < ic->nb_streams; i++) - ic->streams[i]->discard = AVDISCARD_ALL; - if (!video_disable) - st_index[AVMEDIA_TYPE_VIDEO] = - av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO, - wanted_stream[AVMEDIA_TYPE_VIDEO], -1, NULL, 0); - if (!audio_disable) - st_index[AVMEDIA_TYPE_AUDIO] = - av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO, - wanted_stream[AVMEDIA_TYPE_AUDIO], - st_index[AVMEDIA_TYPE_VIDEO], - NULL, 0); - if (!video_disable && !subtitle_disable) - st_index[AVMEDIA_TYPE_SUBTITLE] = - av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE, - wanted_stream[AVMEDIA_TYPE_SUBTITLE], - (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ? - st_index[AVMEDIA_TYPE_AUDIO] : - st_index[AVMEDIA_TYPE_VIDEO]), - NULL, 0); - if (show_status) { - av_dump_format(ic, 0, is->filename, 0); - } - - is->show_mode = show_mode; - - /* open the streams */ - if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) { - stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]); - } - - ret = -1; - if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) { - ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]); - } - if (is->show_mode == SHOW_MODE_NONE) - is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT; - - if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) { - stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]); - } - - if (is->video_stream < 0 && is->audio_stream < 0) { - fprintf(stderr, "%s: could not open codecs\n", is->filename); - ret = -1; - goto fail; - } - - if (infinite_buffer < 0 && is->realtime) - infinite_buffer = 1; - - for (;;) { - if (is->abort_request) - break; - if (is->paused != is->last_paused) { - is->last_paused = is->paused; - if (is->paused) - is->read_pause_return = av_read_pause(ic); - else - av_read_play(ic); - } -#if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL - if (is->paused && - (!strcmp(ic->iformat->name, "rtsp") || - (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) { - /* wait 10 ms to avoid trying to get another packet */ - /* XXX: horrible */ - SDL_Delay(10); - continue; - } -#endif - if (is->seek_req) { - int64_t seek_target = is->seek_pos; - int64_t seek_min = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN; - int64_t seek_max = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX; -// FIXME the +-2 is due to rounding being not done in the correct direction in generation -// of the seek_pos/seek_rel variables - - ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags); - if (ret < 0) { - fprintf(stderr, "%s: error while seeking\n", is->ic->filename); - } else { - if (is->audio_stream >= 0) { - packet_queue_flush(&is->audioq); - packet_queue_put(&is->audioq, &flush_pkt); - } - if (is->subtitle_stream >= 0) { - packet_queue_flush(&is->subtitleq); - packet_queue_put(&is->subtitleq, &flush_pkt); - } - if (is->video_stream >= 0) { - packet_queue_flush(&is->videoq); - packet_queue_put(&is->videoq, &flush_pkt); - } - if (is->seek_flags & AVSEEK_FLAG_BYTE) { - update_external_clock_pts(is, NAN); - } else { - update_external_clock_pts(is, seek_target / (double)AV_TIME_BASE); - } - } - is->seek_req = 0; - eof = 0; - if (is->paused) - step_to_next_frame(is); - } - if (is->queue_attachments_req) { - avformat_queue_attached_pictures(ic); - is->queue_attachments_req = 0; - } - - /* if the queue are full, no need to read more */ - if (infinite_buffer<1 && - (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE - || ( (is->audioq .nb_packets > MIN_FRAMES || is->audio_stream < 0 || is->audioq.abort_request) - && (is->videoq .nb_packets > MIN_FRAMES || is->video_stream < 0 || is->videoq.abort_request) - && (is->subtitleq.nb_packets > MIN_FRAMES || is->subtitle_stream < 0 || is->subtitleq.abort_request)))) { - /* wait 10 ms */ - SDL_LockMutex(wait_mutex); - SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); - SDL_UnlockMutex(wait_mutex); - continue; - } - if (eof) { - if (is->video_stream >= 0) { - av_init_packet(pkt); - pkt->data = NULL; - pkt->size = 0; - pkt->stream_index = is->video_stream; - packet_queue_put(&is->videoq, pkt); - } - if (is->audio_stream >= 0 && - is->audio_st->codec->codec->capabilities & CODEC_CAP_DELAY) { - av_init_packet(pkt); - pkt->data = NULL; - pkt->size = 0; - pkt->stream_index = is->audio_stream; - packet_queue_put(&is->audioq, pkt); - } - SDL_Delay(10); - if (is->audioq.size + is->videoq.size + is->subtitleq.size == 0) { - if (loop != 1 && (!loop || --loop)) { - stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0); - } else if (autoexit) { - ret = AVERROR_EOF; - goto fail; - } - } - eof=0; - continue; - } - ret = av_read_frame(ic, pkt); - if (ret < 0) { - if (ret == AVERROR_EOF || url_feof(ic->pb)) - eof = 1; - if (ic->pb && ic->pb->error) - break; - SDL_LockMutex(wait_mutex); - SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10); - SDL_UnlockMutex(wait_mutex); - continue; - } - /* check if packet is in play range specified by user, then queue, otherwise discard */ - pkt_in_play_range = duration == AV_NOPTS_VALUE || - (pkt->pts - ic->streams[pkt->stream_index]->start_time) * - av_q2d(ic->streams[pkt->stream_index]->time_base) - - (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000 - <= ((double)duration / 1000000); - if (pkt->stream_index == is->audio_stream && pkt_in_play_range) { - packet_queue_put(&is->audioq, pkt); - } else if (pkt->stream_index == is->video_stream && pkt_in_play_range) { - packet_queue_put(&is->videoq, pkt); - } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) { - packet_queue_put(&is->subtitleq, pkt); - } else { - av_free_packet(pkt); - } - } - /* wait until the end */ - while (!is->abort_request) { - SDL_Delay(100); - } - - ret = 0; - fail: - /* close each stream */ - if (is->audio_stream >= 0) - stream_component_close(is, is->audio_stream); - if (is->video_stream >= 0) - stream_component_close(is, is->video_stream); - if (is->subtitle_stream >= 0) - stream_component_close(is, is->subtitle_stream); - if (is->ic) { - avformat_close_input(&is->ic); - } - - if (ret != 0) { - SDL_Event event; - - event.type = FF_QUIT_EVENT; - event.user.data1 = is; - SDL_PushEvent(&event); - } - SDL_DestroyMutex(wait_mutex); - return 0; -} - -static VideoState *stream_open(const char *filename, AVInputFormat *iformat) -{ - VideoState *is; - - is = av_mallocz(sizeof(VideoState)); - if (!is) - return NULL; - av_strlcpy(is->filename, filename, sizeof(is->filename)); - is->iformat = iformat; - is->ytop = 0; - is->xleft = 0; - - /* start video display */ - is->pictq_mutex = SDL_CreateMutex(); - is->pictq_cond = SDL_CreateCond(); - - is->subpq_mutex = SDL_CreateMutex(); - is->subpq_cond = SDL_CreateCond(); - - packet_queue_init(&is->videoq); - packet_queue_init(&is->audioq); - packet_queue_init(&is->subtitleq); - - is->continue_read_thread = SDL_CreateCond(); - - update_external_clock_pts(is, NAN); - update_external_clock_speed(is, 1.0); - is->audio_current_pts_drift = -av_gettime() / 1000000.0; - is->video_current_pts_drift = is->audio_current_pts_drift; - is->audio_clock_serial = -1; - is->video_clock_serial = -1; - is->audio_last_serial = -1; - is->av_sync_type = av_sync_type; - is->read_tid = SDL_CreateThread(read_thread, is); - if (!is->read_tid) { - av_free(is); - return NULL; - } - return is; -} - -static void stream_cycle_channel(VideoState *is, int codec_type) -{ - AVFormatContext *ic = is->ic; - int start_index, stream_index; - int old_index; - AVStream *st; - - if (codec_type == AVMEDIA_TYPE_VIDEO) { - start_index = is->last_video_stream; - old_index = is->video_stream; - } else if (codec_type == AVMEDIA_TYPE_AUDIO) { - start_index = is->last_audio_stream; - old_index = is->audio_stream; - } else { - start_index = is->last_subtitle_stream; - old_index = is->subtitle_stream; - } - stream_index = start_index; - for (;;) { - if (++stream_index >= is->ic->nb_streams) - { - if (codec_type == AVMEDIA_TYPE_SUBTITLE) - { - stream_index = -1; - is->last_subtitle_stream = -1; - goto the_end; - } - if (start_index == -1) - return; - stream_index = 0; - } - if (stream_index == start_index) - return; - st = ic->streams[stream_index]; - if (st->codec->codec_type == codec_type) { - /* check that parameters are OK */ - switch (codec_type) { - case AVMEDIA_TYPE_AUDIO: - if (st->codec->sample_rate != 0 && - st->codec->channels != 0) - goto the_end; - break; - case AVMEDIA_TYPE_VIDEO: - case AVMEDIA_TYPE_SUBTITLE: - goto the_end; - default: - break; - } - } - } - the_end: - stream_component_close(is, old_index); - stream_component_open(is, stream_index); - if (codec_type == AVMEDIA_TYPE_VIDEO) - is->queue_attachments_req = 1; -} - - -static void toggle_full_screen(VideoState *is) -{ -#if defined(__APPLE__) && SDL_VERSION_ATLEAST(1, 2, 14) - /* OS X needs to reallocate the SDL overlays */ - int i; - for (i = 0; i < VIDEO_PICTURE_QUEUE_SIZE; i++) - is->pictq[i].reallocate = 1; -#endif - is_full_screen = !is_full_screen; - video_open(is, 1, NULL); -} - -static void toggle_audio_display(VideoState *is) -{ - int bgcolor = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); - int next = is->show_mode; - do { - next = (next + 1) % SHOW_MODE_NB; - } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st)); - if (is->show_mode != next) { - fill_rectangle(screen, - is->xleft, is->ytop, is->width, is->height, - bgcolor, 1); - is->force_refresh = 1; - is->show_mode = next; - } -} - -static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) { - double remaining_time = 0.0; - SDL_PumpEvents(); - while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_ALLEVENTS)) { - if (!cursor_hidden && av_gettime() - cursor_last_shown > CURSOR_HIDE_DELAY) { - SDL_ShowCursor(0); - cursor_hidden = 1; - } - if (remaining_time > 0.0) - av_usleep((int64_t)(remaining_time * 1000000.0)); - remaining_time = REFRESH_RATE; - if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh)) - video_refresh(is, &remaining_time); - SDL_PumpEvents(); - } -} - -/* handle an event sent by the GUI */ -static void event_loop(VideoState *cur_stream) -{ - SDL_Event event; - double incr, pos, frac; - - for (;;) { - double x; - refresh_loop_wait_event(cur_stream, &event); - switch (event.type) { - case SDL_KEYDOWN: - if (exit_on_keydown) { - do_exit(cur_stream); - break; - } - switch (event.key.keysym.sym) { - case SDLK_ESCAPE: - case SDLK_q: - do_exit(cur_stream); - break; - case SDLK_f: - toggle_full_screen(cur_stream); - cur_stream->force_refresh = 1; - break; - case SDLK_p: - case SDLK_SPACE: - toggle_pause(cur_stream); - break; - case SDLK_s: // S: Step to next frame - step_to_next_frame(cur_stream); - break; - case SDLK_a: - stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO); - break; - case SDLK_v: - stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO); - break; - case SDLK_t: - stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE); - break; - case SDLK_w: - toggle_audio_display(cur_stream); - break; - case SDLK_PAGEUP: - incr = 600.0; - goto do_seek; - case SDLK_PAGEDOWN: - incr = -600.0; - goto do_seek; - case SDLK_LEFT: - incr = -10.0; - goto do_seek; - case SDLK_RIGHT: - incr = 10.0; - goto do_seek; - case SDLK_UP: - incr = 60.0; - goto do_seek; - case SDLK_DOWN: - incr = -60.0; - do_seek: - if (seek_by_bytes) { - if (cur_stream->video_stream >= 0 && cur_stream->video_current_pos >= 0) { - pos = cur_stream->video_current_pos; - } else if (cur_stream->audio_stream >= 0 && cur_stream->audio_pkt.pos >= 0) { - pos = cur_stream->audio_pkt.pos; - } else - pos = avio_tell(cur_stream->ic->pb); - if (cur_stream->ic->bit_rate) - incr *= cur_stream->ic->bit_rate / 8.0; - else - incr *= 180000.0; - pos += incr; - stream_seek(cur_stream, pos, incr, 1); - } else { - pos = get_master_clock(cur_stream); - if (isnan(pos)) - pos = (double)cur_stream->seek_pos / AV_TIME_BASE; - pos += incr; - if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE) - pos = cur_stream->ic->start_time / (double)AV_TIME_BASE; - stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0); - } - break; - default: - break; - } - break; - case SDL_VIDEOEXPOSE: - cur_stream->force_refresh = 1; - break; - case SDL_MOUSEBUTTONDOWN: - if (exit_on_mousedown) { - do_exit(cur_stream); - break; - } - case SDL_MOUSEMOTION: - if (cursor_hidden) { - SDL_ShowCursor(1); - cursor_hidden = 0; - } - cursor_last_shown = av_gettime(); - if (event.type == SDL_MOUSEBUTTONDOWN) { - x = event.button.x; - } else { - if (event.motion.state != SDL_PRESSED) - break; - x = event.motion.x; - } - if (seek_by_bytes || cur_stream->ic->duration <= 0) { - uint64_t size = avio_size(cur_stream->ic->pb); - stream_seek(cur_stream, size*x/cur_stream->width, 0, 1); - } else { - int64_t ts; - int ns, hh, mm, ss; - int tns, thh, tmm, tss; - tns = cur_stream->ic->duration / 1000000LL; - thh = tns / 3600; - tmm = (tns % 3600) / 60; - tss = (tns % 60); - frac = x / cur_stream->width; - ns = frac * tns; - hh = ns / 3600; - mm = (ns % 3600) / 60; - ss = (ns % 60); - fprintf(stderr, "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d) \n", frac*100, - hh, mm, ss, thh, tmm, tss); - ts = frac * cur_stream->ic->duration; - if (cur_stream->ic->start_time != AV_NOPTS_VALUE) - ts += cur_stream->ic->start_time; - stream_seek(cur_stream, ts, 0, 0); - } - break; - case SDL_VIDEORESIZE: - screen = SDL_SetVideoMode(event.resize.w, event.resize.h, 0, - SDL_HWSURFACE|SDL_RESIZABLE|SDL_ASYNCBLIT|SDL_HWACCEL); - screen_width = cur_stream->width = event.resize.w; - screen_height = cur_stream->height = event.resize.h; - cur_stream->force_refresh = 1; - break; - case SDL_QUIT: - case FF_QUIT_EVENT: - do_exit(cur_stream); - break; - case FF_ALLOC_EVENT: - alloc_picture(event.user.data1); - break; - default: - break; - } - } -} - -static int opt_frame_size(void *optctx, const char *opt, const char *arg) -{ - av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n"); - return opt_default(NULL, "video_size", arg); -} - -static int opt_width(void *optctx, const char *opt, const char *arg) -{ - screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); - return 0; -} - -static int opt_height(void *optctx, const char *opt, const char *arg) -{ - screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX); - return 0; -} - -static int opt_format(void *optctx, const char *opt, const char *arg) -{ - file_iformat = av_find_input_format(arg); - if (!file_iformat) { - fprintf(stderr, "Unknown input format: %s\n", arg); - return AVERROR(EINVAL); - } - return 0; -} - -static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg) -{ - av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n"); - return opt_default(NULL, "pixel_format", arg); -} - -static int opt_sync(void *optctx, const char *opt, const char *arg) -{ - if (!strcmp(arg, "audio")) - av_sync_type = AV_SYNC_AUDIO_MASTER; - else if (!strcmp(arg, "video")) - av_sync_type = AV_SYNC_VIDEO_MASTER; - else if (!strcmp(arg, "ext")) - av_sync_type = AV_SYNC_EXTERNAL_CLOCK; - else { - fprintf(stderr, "Unknown value for %s: %s\n", opt, arg); - exit(1); - } - return 0; -} - -static int opt_seek(void *optctx, const char *opt, const char *arg) -{ - start_time = parse_time_or_die(opt, arg, 1); - return 0; -} - -static int opt_duration(void *optctx, const char *opt, const char *arg) -{ - duration = parse_time_or_die(opt, arg, 1); - return 0; -} - -static int opt_show_mode(void *optctx, const char *opt, const char *arg) -{ - show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO : - !strcmp(arg, "waves") ? SHOW_MODE_WAVES : - !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT : - parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1); - return 0; -} - -static void opt_input_file(void *optctx, const char *filename) -{ - if (input_filename) { - fprintf(stderr, "Argument '%s' provided as input filename, but '%s' was already specified.\n", - filename, input_filename); - exit(1); - } - if (!strcmp(filename, "-")) - filename = "pipe:"; - input_filename = filename; -} - -static int opt_codec(void *optctx, const char *opt, const char *arg) -{ - const char *spec = strchr(opt, ':'); - if (!spec) { - fprintf(stderr, "No media specifier was specified in '%s' in option '%s'\n", - arg, opt); - return AVERROR(EINVAL); - } - spec++; - switch (spec[0]) { - case 'a' : audio_codec_name = arg; break; - case 's' : subtitle_codec_name = arg; break; - case 'v' : video_codec_name = arg; break; - default: - fprintf(stderr, "Invalid media specifier '%s' in option '%s'\n", spec, opt); - return AVERROR(EINVAL); - } - return 0; -} - -static int dummy; - -static const OptionDef options[] = { -#include "cmdutils_common_opts.h" - { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" }, - { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" }, - { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" }, - { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" }, - { "an", OPT_BOOL, { &audio_disable }, "disable audio" }, - { "vn", OPT_BOOL, { &video_disable }, "disable video" }, - { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" }, - { "ast", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_number" }, - { "vst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_number" }, - { "sst", OPT_INT | HAS_ARG | OPT_EXPERT, { &wanted_stream[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_number" }, - { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" }, - { "t", HAS_ARG, { .func_arg = opt_duration }, "play \"duration\" seconds of audio/video", "duration" }, - { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" }, - { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" }, - { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" }, - { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" }, - { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" }, - { "bug", OPT_INT | HAS_ARG | OPT_EXPERT, { &workaround_bugs }, "workaround bugs", "" }, - { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" }, - { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" }, - { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""}, - { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" }, - { "idct", OPT_INT | HAS_ARG | OPT_EXPERT, { &idct }, "set idct algo", "algo" }, - { "ec", OPT_INT | HAS_ARG | OPT_EXPERT, { &error_concealment }, "set error concealment options", "bit_mask" }, - { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" }, - { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" }, - { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" }, - { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" }, - { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" }, - { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" }, - { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" }, - { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" }, -#if CONFIG_AVFILTER - { "vf", OPT_STRING | HAS_ARG, { &vfilters }, "set video filters", "filter_graph" }, - { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" }, -#endif - { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" }, - { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" }, - { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" }, - { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"}, - { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" }, - { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &audio_codec_name }, "force audio decoder", "decoder_name" }, - { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" }, - { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &video_codec_name }, "force video decoder", "decoder_name" }, - { NULL, }, -}; - -static void show_usage(void) -{ - av_log(NULL, AV_LOG_INFO, "Simple media player\n"); - av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name); - av_log(NULL, AV_LOG_INFO, "\n"); -} - -void show_help_default(const char *opt, const char *arg) -{ - av_log_set_callback(log_callback_help); - show_usage(); - show_help_options(options, "Main options:", 0, OPT_EXPERT, 0); - show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0); - printf("\n"); - show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM); - show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM); -#if !CONFIG_AVFILTER - show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM); -#else - show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM); -#endif - printf("\nWhile playing:\n" - "q, ESC quit\n" - "f toggle full screen\n" - "p, SPC pause\n" - "a cycle audio channel\n" - "v cycle video channel\n" - "t cycle subtitle channel\n" - "w show audio waves\n" - "s activate frame-step mode\n" - "left/right seek backward/forward 10 seconds\n" - "down/up seek backward/forward 1 minute\n" - "page down/page up seek backward/forward 10 minutes\n" - "mouse click seek to percentage in file corresponding to fraction of width\n" - ); -} - -static int lockmgr(void **mtx, enum AVLockOp op) -{ - switch(op) { - case AV_LOCK_CREATE: - *mtx = SDL_CreateMutex(); - if(!*mtx) - return 1; - return 0; - case AV_LOCK_OBTAIN: - return !!SDL_LockMutex(*mtx); - case AV_LOCK_RELEASE: - return !!SDL_UnlockMutex(*mtx); - case AV_LOCK_DESTROY: - SDL_DestroyMutex(*mtx); - return 0; - } - return 1; -} - -/* Called from the main */ -int main(int argc, char **argv) -{ - int flags; - VideoState *is; - char dummy_videodriver[] = "SDL_VIDEODRIVER=dummy"; - - av_log_set_flags(AV_LOG_SKIP_REPEATED); - parse_loglevel(argc, argv, options); - - /* register all codecs, demux and protocols */ - avcodec_register_all(); -#if CONFIG_AVDEVICE - avdevice_register_all(); -#endif -#if CONFIG_AVFILTER - avfilter_register_all(); -#endif - av_register_all(); - avformat_network_init(); - - init_opts(); - - signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ - signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ - - show_banner(argc, argv, options); - - parse_options(NULL, argc, argv, options, opt_input_file); - - if (!input_filename) { - show_usage(); - fprintf(stderr, "An input file must be specified\n"); - fprintf(stderr, "Use -h to get full help or, even better, run 'man %s'\n", program_name); - exit(1); - } - - if (display_disable) { - video_disable = 1; - } - flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER; - if (audio_disable) - flags &= ~SDL_INIT_AUDIO; - if (display_disable) - SDL_putenv(dummy_videodriver); /* For the event queue, we always need a video driver. */ -#if !defined(__MINGW32__) && !defined(__APPLE__) - flags |= SDL_INIT_EVENTTHREAD; /* Not supported on Windows or Mac OS X */ -#endif - if (SDL_Init (flags)) { - fprintf(stderr, "Could not initialize SDL - %s\n", SDL_GetError()); - fprintf(stderr, "(Did you set the DISPLAY variable?)\n"); - exit(1); - } - - if (!display_disable) { - const SDL_VideoInfo *vi = SDL_GetVideoInfo(); - fs_screen_width = vi->current_w; - fs_screen_height = vi->current_h; - } - - SDL_EventState(SDL_ACTIVEEVENT, SDL_IGNORE); - SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE); - SDL_EventState(SDL_USEREVENT, SDL_IGNORE); - - if (av_lockmgr_register(lockmgr)) { - fprintf(stderr, "Could not initialize lock manager!\n"); - do_exit(NULL); - } - - av_init_packet(&flush_pkt); - flush_pkt.data = (char *)(intptr_t)"FLUSH"; - - is = stream_open(input_filename, file_iformat); - if (!is) { - fprintf(stderr, "Failed to initialize VideoState!\n"); - do_exit(NULL); - } - - event_loop(is); - - /* never returns */ - - return 0; -} |