diff options
Diffstat (limited to 'ffmpeg1/libavcodec/utils.c')
| -rw-r--r-- | ffmpeg1/libavcodec/utils.c | 3095 |
1 files changed, 0 insertions, 3095 deletions
diff --git a/ffmpeg1/libavcodec/utils.c b/ffmpeg1/libavcodec/utils.c deleted file mode 100644 index c15b772..0000000 --- a/ffmpeg1/libavcodec/utils.c +++ /dev/null @@ -1,3095 +0,0 @@ -/* - * utils for libavcodec - * Copyright (c) 2001 Fabrice Bellard - * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> - * - * 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 - * utils. - */ - -#include "config.h" -#include "libavutil/avassert.h" -#include "libavutil/avstring.h" -#include "libavutil/bprint.h" -#include "libavutil/channel_layout.h" -#include "libavutil/crc.h" -#include "libavutil/frame.h" -#include "libavutil/mathematics.h" -#include "libavutil/pixdesc.h" -#include "libavutil/imgutils.h" -#include "libavutil/samplefmt.h" -#include "libavutil/dict.h" -#include "libavutil/avassert.h" -#include "avcodec.h" -#include "dsputil.h" -#include "libavutil/opt.h" -#include "thread.h" -#include "frame_thread_encoder.h" -#include "internal.h" -#include "bytestream.h" -#include "version.h" -#include <stdlib.h> -#include <stdarg.h> -#include <limits.h> -#include <float.h> -#if CONFIG_ICONV -# include <iconv.h> -#endif - -volatile int ff_avcodec_locked; -static int volatile entangled_thread_counter = 0; -static int (*ff_lockmgr_cb)(void **mutex, enum AVLockOp op); -static void *codec_mutex; -static void *avformat_mutex; - -void *av_fast_realloc(void *ptr, unsigned int *size, size_t min_size) -{ - if (min_size < *size) - return ptr; - - min_size = FFMAX(17 * min_size / 16 + 32, min_size); - - ptr = av_realloc(ptr, min_size); - /* we could set this to the unmodified min_size but this is safer - * if the user lost the ptr and uses NULL now - */ - if (!ptr) - min_size = 0; - - *size = min_size; - - return ptr; -} - -static inline int ff_fast_malloc(void *ptr, unsigned int *size, size_t min_size, int zero_realloc) -{ - void **p = ptr; - if (min_size < *size) - return 0; - min_size = FFMAX(17 * min_size / 16 + 32, min_size); - av_free(*p); - *p = zero_realloc ? av_mallocz(min_size) : av_malloc(min_size); - if (!*p) - min_size = 0; - *size = min_size; - return 1; -} - -void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size) -{ - ff_fast_malloc(ptr, size, min_size, 0); -} - -void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size) -{ - uint8_t **p = ptr; - if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) { - av_freep(p); - *size = 0; - return; - } - if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1)) - memset(*p + min_size, 0, FF_INPUT_BUFFER_PADDING_SIZE); -} - -void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size) -{ - uint8_t **p = ptr; - if (min_size > SIZE_MAX - FF_INPUT_BUFFER_PADDING_SIZE) { - av_freep(p); - *size = 0; - return; - } - if (!ff_fast_malloc(p, size, min_size + FF_INPUT_BUFFER_PADDING_SIZE, 1)) - memset(*p, 0, min_size + FF_INPUT_BUFFER_PADDING_SIZE); -} - -/* encoder management */ -static AVCodec *first_avcodec = NULL; - -AVCodec *av_codec_next(const AVCodec *c) -{ - if (c) - return c->next; - else - return first_avcodec; -} - -static void avcodec_init(void) -{ - static int initialized = 0; - - if (initialized != 0) - return; - initialized = 1; - - if (CONFIG_DSPUTIL) - ff_dsputil_static_init(); -} - -int av_codec_is_encoder(const AVCodec *codec) -{ - return codec && (codec->encode_sub || codec->encode2); -} - -int av_codec_is_decoder(const AVCodec *codec) -{ - return codec && codec->decode; -} - -void avcodec_register(AVCodec *codec) -{ - AVCodec **p; - avcodec_init(); - p = &first_avcodec; - while (*p != NULL) - p = &(*p)->next; - *p = codec; - codec->next = NULL; - - if (codec->init_static_data) - codec->init_static_data(codec); -} - -unsigned avcodec_get_edge_width(void) -{ - return EDGE_WIDTH; -} - -void avcodec_set_dimensions(AVCodecContext *s, int width, int height) -{ - s->coded_width = width; - s->coded_height = height; - s->width = -((-width ) >> s->lowres); - s->height = -((-height) >> s->lowres); -} - -#if (ARCH_ARM && HAVE_NEON) || ARCH_PPC || HAVE_MMX -# define STRIDE_ALIGN 16 -#else -# define STRIDE_ALIGN 8 -#endif - -void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, - int linesize_align[AV_NUM_DATA_POINTERS]) -{ - int i; - int w_align = 1; - int h_align = 1; - - switch (s->pix_fmt) { - case AV_PIX_FMT_YUV420P: - case AV_PIX_FMT_YUYV422: - case AV_PIX_FMT_UYVY422: - case AV_PIX_FMT_YUV422P: - case AV_PIX_FMT_YUV440P: - case AV_PIX_FMT_YUV444P: - case AV_PIX_FMT_GBRP: - case AV_PIX_FMT_GRAY8: - case AV_PIX_FMT_GRAY16BE: - case AV_PIX_FMT_GRAY16LE: - case AV_PIX_FMT_YUVJ420P: - case AV_PIX_FMT_YUVJ422P: - case AV_PIX_FMT_YUVJ440P: - case AV_PIX_FMT_YUVJ444P: - case AV_PIX_FMT_YUVA420P: - case AV_PIX_FMT_YUVA422P: - case AV_PIX_FMT_YUVA444P: - case AV_PIX_FMT_YUV420P9LE: - case AV_PIX_FMT_YUV420P9BE: - case AV_PIX_FMT_YUV420P10LE: - case AV_PIX_FMT_YUV420P10BE: - case AV_PIX_FMT_YUV420P12LE: - case AV_PIX_FMT_YUV420P12BE: - case AV_PIX_FMT_YUV420P14LE: - case AV_PIX_FMT_YUV420P14BE: - case AV_PIX_FMT_YUV422P9LE: - case AV_PIX_FMT_YUV422P9BE: - case AV_PIX_FMT_YUV422P10LE: - case AV_PIX_FMT_YUV422P10BE: - case AV_PIX_FMT_YUV422P12LE: - case AV_PIX_FMT_YUV422P12BE: - case AV_PIX_FMT_YUV422P14LE: - case AV_PIX_FMT_YUV422P14BE: - case AV_PIX_FMT_YUV444P9LE: - case AV_PIX_FMT_YUV444P9BE: - case AV_PIX_FMT_YUV444P10LE: - case AV_PIX_FMT_YUV444P10BE: - case AV_PIX_FMT_YUV444P12LE: - case AV_PIX_FMT_YUV444P12BE: - case AV_PIX_FMT_YUV444P14LE: - case AV_PIX_FMT_YUV444P14BE: - case AV_PIX_FMT_GBRP9LE: - case AV_PIX_FMT_GBRP9BE: - case AV_PIX_FMT_GBRP10LE: - case AV_PIX_FMT_GBRP10BE: - case AV_PIX_FMT_GBRP12LE: - case AV_PIX_FMT_GBRP12BE: - case AV_PIX_FMT_GBRP14LE: - case AV_PIX_FMT_GBRP14BE: - w_align = 16; //FIXME assume 16 pixel per macroblock - h_align = 16 * 2; // interlaced needs 2 macroblocks height - break; - case AV_PIX_FMT_YUV411P: - case AV_PIX_FMT_UYYVYY411: - w_align = 32; - h_align = 8; - break; - case AV_PIX_FMT_YUV410P: - if (s->codec_id == AV_CODEC_ID_SVQ1) { - w_align = 64; - h_align = 64; - } - break; - case AV_PIX_FMT_RGB555: - if (s->codec_id == AV_CODEC_ID_RPZA) { - w_align = 4; - h_align = 4; - } - break; - case AV_PIX_FMT_PAL8: - case AV_PIX_FMT_BGR8: - case AV_PIX_FMT_RGB8: - if (s->codec_id == AV_CODEC_ID_SMC || - s->codec_id == AV_CODEC_ID_CINEPAK) { - w_align = 4; - h_align = 4; - } - break; - case AV_PIX_FMT_BGR24: - if ((s->codec_id == AV_CODEC_ID_MSZH) || - (s->codec_id == AV_CODEC_ID_ZLIB)) { - w_align = 4; - h_align = 4; - } - break; - case AV_PIX_FMT_RGB24: - if (s->codec_id == AV_CODEC_ID_CINEPAK) { - w_align = 4; - h_align = 4; - } - break; - default: - w_align = 1; - h_align = 1; - break; - } - - if (s->codec_id == AV_CODEC_ID_IFF_ILBM || s->codec_id == AV_CODEC_ID_IFF_BYTERUN1) { - w_align = FFMAX(w_align, 8); - } - - *width = FFALIGN(*width, w_align); - *height = FFALIGN(*height, h_align); - if (s->codec_id == AV_CODEC_ID_H264 || s->lowres) - // some of the optimized chroma MC reads one line too much - // which is also done in mpeg decoders with lowres > 0 - *height += 2; - - for (i = 0; i < 4; i++) - linesize_align[i] = STRIDE_ALIGN; -} - -void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height) -{ - const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->pix_fmt); - int chroma_shift = desc->log2_chroma_w; - int linesize_align[AV_NUM_DATA_POINTERS]; - int align; - - avcodec_align_dimensions2(s, width, height, linesize_align); - align = FFMAX(linesize_align[0], linesize_align[3]); - linesize_align[1] <<= chroma_shift; - linesize_align[2] <<= chroma_shift; - align = FFMAX3(align, linesize_align[1], linesize_align[2]); - *width = FFALIGN(*width, align); -} - -int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, - enum AVSampleFormat sample_fmt, const uint8_t *buf, - int buf_size, int align) -{ - int ch, planar, needed_size, ret = 0; - - needed_size = av_samples_get_buffer_size(NULL, nb_channels, - frame->nb_samples, sample_fmt, - align); - if (buf_size < needed_size) - return AVERROR(EINVAL); - - planar = av_sample_fmt_is_planar(sample_fmt); - if (planar && nb_channels > AV_NUM_DATA_POINTERS) { - if (!(frame->extended_data = av_mallocz(nb_channels * - sizeof(*frame->extended_data)))) - return AVERROR(ENOMEM); - } else { - frame->extended_data = frame->data; - } - - if ((ret = av_samples_fill_arrays(frame->extended_data, &frame->linesize[0], - (uint8_t *)(intptr_t)buf, nb_channels, frame->nb_samples, - sample_fmt, align)) < 0) { - if (frame->extended_data != frame->data) - av_freep(&frame->extended_data); - return ret; - } - if (frame->extended_data != frame->data) { - for (ch = 0; ch < AV_NUM_DATA_POINTERS; ch++) - frame->data[ch] = frame->extended_data[ch]; - } - - return ret; -} - -static int update_frame_pool(AVCodecContext *avctx, AVFrame *frame) -{ - FramePool *pool = avctx->internal->pool; - int i, ret; - - switch (avctx->codec_type) { - case AVMEDIA_TYPE_VIDEO: { - AVPicture picture; - int size[4] = { 0 }; - int w = frame->width; - int h = frame->height; - int tmpsize, unaligned; - - if (pool->format == frame->format && - pool->width == frame->width && pool->height == frame->height) - return 0; - - avcodec_align_dimensions2(avctx, &w, &h, pool->stride_align); - - if (!(avctx->flags & CODEC_FLAG_EMU_EDGE)) { - w += EDGE_WIDTH * 2; - h += EDGE_WIDTH * 2; - } - - do { - // NOTE: do not align linesizes individually, this breaks e.g. assumptions - // that linesize[0] == 2*linesize[1] in the MPEG-encoder for 4:2:2 - av_image_fill_linesizes(picture.linesize, avctx->pix_fmt, w); - // increase alignment of w for next try (rhs gives the lowest bit set in w) - w += w & ~(w - 1); - - unaligned = 0; - for (i = 0; i < 4; i++) - unaligned |= picture.linesize[i] % pool->stride_align[i]; - } while (unaligned); - - tmpsize = av_image_fill_pointers(picture.data, avctx->pix_fmt, h, - NULL, picture.linesize); - if (tmpsize < 0) - return -1; - - for (i = 0; i < 3 && picture.data[i + 1]; i++) - size[i] = picture.data[i + 1] - picture.data[i]; - size[i] = tmpsize - (picture.data[i] - picture.data[0]); - - for (i = 0; i < 4; i++) { - av_buffer_pool_uninit(&pool->pools[i]); - pool->linesize[i] = picture.linesize[i]; - if (size[i]) { - pool->pools[i] = av_buffer_pool_init(size[i] + 16, NULL); - if (!pool->pools[i]) { - ret = AVERROR(ENOMEM); - goto fail; - } - } - } - pool->format = frame->format; - pool->width = frame->width; - pool->height = frame->height; - - break; - } - case AVMEDIA_TYPE_AUDIO: { - int ch = av_frame_get_channels(frame); //av_get_channel_layout_nb_channels(frame->channel_layout); - int planar = av_sample_fmt_is_planar(frame->format); - int planes = planar ? ch : 1; - - if (pool->format == frame->format && pool->planes == planes && - pool->channels == ch && frame->nb_samples == pool->samples) - return 0; - - av_buffer_pool_uninit(&pool->pools[0]); - ret = av_samples_get_buffer_size(&pool->linesize[0], ch, - frame->nb_samples, frame->format, 0); - if (ret < 0) - goto fail; - - pool->pools[0] = av_buffer_pool_init(pool->linesize[0], NULL); - if (!pool->pools[0]) { - ret = AVERROR(ENOMEM); - goto fail; - } - - pool->format = frame->format; - pool->planes = planes; - pool->channels = ch; - pool->samples = frame->nb_samples; - break; - } - default: av_assert0(0); - } - return 0; -fail: - for (i = 0; i < 4; i++) - av_buffer_pool_uninit(&pool->pools[i]); - pool->format = -1; - pool->planes = pool->channels = pool->samples = 0; - pool->width = pool->height = 0; - return ret; -} - -static int audio_get_buffer(AVCodecContext *avctx, AVFrame *frame) -{ - FramePool *pool = avctx->internal->pool; - int planes = pool->planes; - int i; - - frame->linesize[0] = pool->linesize[0]; - - if (planes > AV_NUM_DATA_POINTERS) { - frame->extended_data = av_mallocz(planes * sizeof(*frame->extended_data)); - frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS; - frame->extended_buf = av_mallocz(frame->nb_extended_buf * - sizeof(*frame->extended_buf)); - if (!frame->extended_data || !frame->extended_buf) { - av_freep(&frame->extended_data); - av_freep(&frame->extended_buf); - return AVERROR(ENOMEM); - } - } else { - frame->extended_data = frame->data; - av_assert0(frame->nb_extended_buf == 0); - } - - for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) { - frame->buf[i] = av_buffer_pool_get(pool->pools[0]); - if (!frame->buf[i]) - goto fail; - frame->extended_data[i] = frame->data[i] = frame->buf[i]->data; - } - for (i = 0; i < frame->nb_extended_buf; i++) { - frame->extended_buf[i] = av_buffer_pool_get(pool->pools[0]); - if (!frame->extended_buf[i]) - goto fail; - frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data; - } - - if (avctx->debug & FF_DEBUG_BUFFERS) - av_log(avctx, AV_LOG_DEBUG, "default_get_buffer called on frame %p", frame); - - return 0; -fail: - av_frame_unref(frame); - return AVERROR(ENOMEM); -} - -static int video_get_buffer(AVCodecContext *s, AVFrame *pic) -{ - FramePool *pool = s->internal->pool; - const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pic->format); - int pixel_size = desc->comp[0].step_minus1 + 1; - int h_chroma_shift, v_chroma_shift; - int i; - - if (pic->data[0] != NULL) { - av_log(s, AV_LOG_ERROR, "pic->data[0]!=NULL in avcodec_default_get_buffer\n"); - return -1; - } - - memset(pic->data, 0, sizeof(pic->data)); - pic->extended_data = pic->data; - - av_pix_fmt_get_chroma_sub_sample(s->pix_fmt, &h_chroma_shift, &v_chroma_shift); - - for (i = 0; i < 4 && pool->pools[i]; i++) { - const int h_shift = i == 0 ? 0 : h_chroma_shift; - const int v_shift = i == 0 ? 0 : v_chroma_shift; - - pic->linesize[i] = pool->linesize[i]; - - pic->buf[i] = av_buffer_pool_get(pool->pools[i]); - if (!pic->buf[i]) - goto fail; - - // no edge if EDGE EMU or not planar YUV - if ((s->flags & CODEC_FLAG_EMU_EDGE) || !pool->pools[2]) - pic->data[i] = pic->buf[i]->data; - else { - pic->data[i] = pic->buf[i]->data + - FFALIGN((pic->linesize[i] * EDGE_WIDTH >> v_shift) + - (pixel_size * EDGE_WIDTH >> h_shift), pool->stride_align[i]); - } - } - for (; i < AV_NUM_DATA_POINTERS; i++) { - pic->data[i] = NULL; - pic->linesize[i] = 0; - } - if (pic->data[1] && !pic->data[2]) - avpriv_set_systematic_pal2((uint32_t *)pic->data[1], s->pix_fmt); - - if (s->debug & FF_DEBUG_BUFFERS) - av_log(s, AV_LOG_DEBUG, "default_get_buffer called on pic %p\n", pic); - - return 0; -fail: - av_frame_unref(pic); - return AVERROR(ENOMEM); -} - -void avpriv_color_frame(AVFrame *frame, const int c[4]) -{ - const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); - int p, y, x; - - av_assert0(desc->flags & PIX_FMT_PLANAR); - - for (p = 0; p<desc->nb_components; p++) { - uint8_t *dst = frame->data[p]; - int is_chroma = p == 1 || p == 2; - int bytes = -((-frame->width) >> (is_chroma ? desc->log2_chroma_w : 0)); - for (y = 0; y<-((-frame->height) >> (is_chroma ? desc->log2_chroma_h : 0)); y++){ - if (desc->comp[0].depth_minus1 >= 8) { - for (x = 0; x<bytes; x++) - ((uint16_t*)dst)[x] = c[p]; - }else - memset(dst, c[p], bytes); - dst += frame->linesize[p]; - } - } -} - -int avcodec_default_get_buffer2(AVCodecContext *avctx, AVFrame *frame, int flags) -{ - int ret; - - if ((ret = update_frame_pool(avctx, frame)) < 0) - return ret; - -#if FF_API_GET_BUFFER - frame->type = FF_BUFFER_TYPE_INTERNAL; -#endif - - switch (avctx->codec_type) { - case AVMEDIA_TYPE_VIDEO: - return video_get_buffer(avctx, frame); - case AVMEDIA_TYPE_AUDIO: - return audio_get_buffer(avctx, frame); - default: - return -1; - } -} - -int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame) -{ - if (avctx->pkt) { - frame->pkt_pts = avctx->pkt->pts; - av_frame_set_pkt_pos (frame, avctx->pkt->pos); - av_frame_set_pkt_duration(frame, avctx->pkt->duration); - av_frame_set_pkt_size (frame, avctx->pkt->size); - } else { - frame->pkt_pts = AV_NOPTS_VALUE; - av_frame_set_pkt_pos (frame, -1); - av_frame_set_pkt_duration(frame, 0); - av_frame_set_pkt_size (frame, -1); - } - frame->reordered_opaque = avctx->reordered_opaque; - - switch (avctx->codec->type) { - case AVMEDIA_TYPE_VIDEO: - if (!frame->width) - frame->width = avctx->width; - if (!frame->height) - frame->height = avctx->height; - if (frame->format < 0) - frame->format = avctx->pix_fmt; - if (!frame->sample_aspect_ratio.num) - frame->sample_aspect_ratio = avctx->sample_aspect_ratio; - break; - case AVMEDIA_TYPE_AUDIO: - if (!frame->sample_rate) - frame->sample_rate = avctx->sample_rate; - if (frame->format < 0) - frame->format = avctx->sample_fmt; - if (!frame->channel_layout) { - if (avctx->channel_layout) { - if (av_get_channel_layout_nb_channels(avctx->channel_layout) != - avctx->channels) { - av_log(avctx, AV_LOG_ERROR, "Inconsistent channel " - "configuration.\n"); - return AVERROR(EINVAL); - } - - frame->channel_layout = avctx->channel_layout; - } else { - if (avctx->channels > FF_SANE_NB_CHANNELS) { - av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n", - avctx->channels); - return AVERROR(ENOSYS); - } - - frame->channel_layout = av_get_default_channel_layout(avctx->channels); - } - } - av_frame_set_channels(frame, avctx->channels); - break; - } - return 0; -} - -#if FF_API_GET_BUFFER -int avcodec_default_get_buffer(AVCodecContext *avctx, AVFrame *frame) -{ - return avcodec_default_get_buffer2(avctx, frame, 0); -} - -typedef struct CompatReleaseBufPriv { - AVCodecContext avctx; - AVFrame frame; -} CompatReleaseBufPriv; - -static void compat_free_buffer(void *opaque, uint8_t *data) -{ - CompatReleaseBufPriv *priv = opaque; - if (priv->avctx.release_buffer) - priv->avctx.release_buffer(&priv->avctx, &priv->frame); - av_freep(&priv); -} - -static void compat_release_buffer(void *opaque, uint8_t *data) -{ - AVBufferRef *buf = opaque; - av_buffer_unref(&buf); -} -#endif - -static int get_buffer_internal(AVCodecContext *avctx, AVFrame *frame, int flags) -{ - int ret; - - if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { - if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0 || avctx->pix_fmt<0) { - av_log(avctx, AV_LOG_ERROR, "video_get_buffer: image parameters invalid\n"); - return AVERROR(EINVAL); - } - } - if ((ret = ff_init_buffer_info(avctx, frame)) < 0) - return ret; - -#if FF_API_GET_BUFFER - /* - * Wrap an old get_buffer()-allocated buffer in an bunch of AVBuffers. - * We wrap each plane in its own AVBuffer. Each of those has a reference to - * a dummy AVBuffer as its private data, unreffing it on free. - * When all the planes are freed, the dummy buffer's free callback calls - * release_buffer(). - */ - if (avctx->get_buffer) { - CompatReleaseBufPriv *priv = NULL; - AVBufferRef *dummy_buf = NULL; - int planes, i, ret; - - if (flags & AV_GET_BUFFER_FLAG_REF) - frame->reference = 1; - - ret = avctx->get_buffer(avctx, frame); - if (ret < 0) - return ret; - - /* return if the buffers are already set up - * this would happen e.g. when a custom get_buffer() calls - * avcodec_default_get_buffer - */ - if (frame->buf[0]) - return 0; - - priv = av_mallocz(sizeof(*priv)); - if (!priv) { - ret = AVERROR(ENOMEM); - goto fail; - } - priv->avctx = *avctx; - priv->frame = *frame; - - dummy_buf = av_buffer_create(NULL, 0, compat_free_buffer, priv, 0); - if (!dummy_buf) { - ret = AVERROR(ENOMEM); - goto fail; - } - -#define WRAP_PLANE(ref_out, data, data_size) \ -do { \ - AVBufferRef *dummy_ref = av_buffer_ref(dummy_buf); \ - if (!dummy_ref) { \ - ret = AVERROR(ENOMEM); \ - goto fail; \ - } \ - ref_out = av_buffer_create(data, data_size, compat_release_buffer, \ - dummy_ref, 0); \ - if (!ref_out) { \ - av_frame_unref(frame); \ - ret = AVERROR(ENOMEM); \ - goto fail; \ - } \ -} while (0) - - if (avctx->codec_type == AVMEDIA_TYPE_VIDEO) { - const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format); - - planes = av_pix_fmt_count_planes(frame->format); - if (!desc || planes <= 0) { - ret = AVERROR(EINVAL); - goto fail; - } - - for (i = 0; i < planes; i++) { - int v_shift = (i == 1 || i == 2) ? desc->log2_chroma_h : 0; - int plane_size = (frame->height >> v_shift) * frame->linesize[i]; - - WRAP_PLANE(frame->buf[i], frame->data[i], plane_size); - } - } else { - int planar = av_sample_fmt_is_planar(frame->format); - planes = planar ? avctx->channels : 1; - - if (planes > FF_ARRAY_ELEMS(frame->buf)) { - frame->nb_extended_buf = planes - FF_ARRAY_ELEMS(frame->buf); - frame->extended_buf = av_malloc(sizeof(*frame->extended_buf) * - frame->nb_extended_buf); - if (!frame->extended_buf) { - ret = AVERROR(ENOMEM); - goto fail; - } - } - - for (i = 0; i < FFMIN(planes, FF_ARRAY_ELEMS(frame->buf)); i++) - WRAP_PLANE(frame->buf[i], frame->extended_data[i], frame->linesize[0]); - - for (i = 0; i < frame->nb_extended_buf; i++) - WRAP_PLANE(frame->extended_buf[i], - frame->extended_data[i + FF_ARRAY_ELEMS(frame->buf)], - frame->linesize[0]); - } - - av_buffer_unref(&dummy_buf); - - return 0; - -fail: - avctx->release_buffer(avctx, frame); - av_freep(&priv); - av_buffer_unref(&dummy_buf); - return ret; - } -#endif - - return avctx->get_buffer2(avctx, frame, flags); -} - -int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags) -{ - int ret = get_buffer_internal(avctx, frame, flags); - if (ret < 0) - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return ret; -} - -static int reget_buffer_internal(AVCodecContext *avctx, AVFrame *frame) -{ - AVFrame tmp; - int ret; - - av_assert0(avctx->codec_type == AVMEDIA_TYPE_VIDEO); - - if (frame->data[0] && (frame->width != avctx->width || frame->height != avctx->height || frame->format != avctx->pix_fmt)) { - av_log(avctx, AV_LOG_WARNING, "Picture changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s in reget buffer()\n", - frame->width, frame->height, av_get_pix_fmt_name(frame->format), avctx->width, avctx->height, av_get_pix_fmt_name(avctx->pix_fmt)); - av_frame_unref(frame); - } - - ff_init_buffer_info(avctx, frame); - - if (!frame->data[0]) - return ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); - - if (av_frame_is_writable(frame)) - return 0; - - av_frame_move_ref(&tmp, frame); - - ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF); - if (ret < 0) { - av_frame_unref(&tmp); - return ret; - } - - av_image_copy(frame->data, frame->linesize, tmp.data, tmp.linesize, - frame->format, frame->width, frame->height); - - av_frame_unref(&tmp); - - return 0; -} - -int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame) -{ - int ret = reget_buffer_internal(avctx, frame); - if (ret < 0) - av_log(avctx, AV_LOG_ERROR, "reget_buffer() failed\n"); - return ret; -} - -#if FF_API_GET_BUFFER -void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic) -{ - av_assert0(s->codec_type == AVMEDIA_TYPE_VIDEO); - - av_frame_unref(pic); -} - -int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic) -{ - av_assert0(0); -} -#endif - -int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2), void *arg, int *ret, int count, int size) -{ - int i; - - for (i = 0; i < count; i++) { - int r = func(c, (char *)arg + i * size); - if (ret) - ret[i] = r; - } - return 0; -} - -int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int jobnr, int threadnr), void *arg, int *ret, int count) -{ - int i; - - for (i = 0; i < count; i++) { - int r = func(c, arg, i, 0); - if (ret) - ret[i] = r; - } - return 0; -} - -static int is_hwaccel_pix_fmt(enum AVPixelFormat pix_fmt) -{ - const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); - return desc->flags & PIX_FMT_HWACCEL; -} - -enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat *fmt) -{ - while (*fmt != AV_PIX_FMT_NONE && is_hwaccel_pix_fmt(*fmt)) - ++fmt; - return fmt[0]; -} - -void avcodec_get_frame_defaults(AVFrame *frame) -{ -#if LIBAVCODEC_VERSION_MAJOR >= 55 - // extended_data should explicitly be freed when needed, this code is unsafe currently - // also this is not compatible to the <55 ABI/API - if (frame->extended_data != frame->data && 0) - av_freep(&frame->extended_data); -#endif - - memset(frame, 0, sizeof(AVFrame)); - - frame->pts = - frame->pkt_dts = - frame->pkt_pts = AV_NOPTS_VALUE; - av_frame_set_best_effort_timestamp(frame, AV_NOPTS_VALUE); - av_frame_set_pkt_duration (frame, 0); - av_frame_set_pkt_pos (frame, -1); - av_frame_set_pkt_size (frame, -1); - frame->key_frame = 1; - frame->sample_aspect_ratio = (AVRational) {0, 1 }; - frame->format = -1; /* unknown */ - frame->extended_data = frame->data; -} - -AVFrame *avcodec_alloc_frame(void) -{ - AVFrame *frame = av_malloc(sizeof(AVFrame)); - - if (frame == NULL) - return NULL; - - frame->extended_data = NULL; - avcodec_get_frame_defaults(frame); - - return frame; -} - -void avcodec_free_frame(AVFrame **frame) -{ - AVFrame *f; - - if (!frame || !*frame) - return; - - f = *frame; - - if (f->extended_data != f->data) - av_freep(&f->extended_data); - - av_freep(frame); -} - -#define MAKE_ACCESSORS(str, name, type, field) \ - type av_##name##_get_##field(const str *s) { return s->field; } \ - void av_##name##_set_##field(str *s, type v) { s->field = v; } - -MAKE_ACCESSORS(AVCodecContext, codec, AVRational, pkt_timebase) -MAKE_ACCESSORS(AVCodecContext, codec, const AVCodecDescriptor *, codec_descriptor) - -static void avcodec_get_subtitle_defaults(AVSubtitle *sub) -{ - memset(sub, 0, sizeof(*sub)); - sub->pts = AV_NOPTS_VALUE; -} - -static int get_bit_rate(AVCodecContext *ctx) -{ - int bit_rate; - int bits_per_sample; - - switch (ctx->codec_type) { - case AVMEDIA_TYPE_VIDEO: - case AVMEDIA_TYPE_DATA: - case AVMEDIA_TYPE_SUBTITLE: - case AVMEDIA_TYPE_ATTACHMENT: - bit_rate = ctx->bit_rate; - break; - case AVMEDIA_TYPE_AUDIO: - bits_per_sample = av_get_bits_per_sample(ctx->codec_id); - bit_rate = bits_per_sample ? ctx->sample_rate * ctx->channels * bits_per_sample : ctx->bit_rate; - break; - default: - bit_rate = 0; - break; - } - return bit_rate; -} - -#if FF_API_AVCODEC_OPEN -int attribute_align_arg avcodec_open(AVCodecContext *avctx, AVCodec *codec) -{ - return avcodec_open2(avctx, codec, NULL); -} -#endif - -int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) -{ - int ret = 0; - - ff_unlock_avcodec(); - - ret = avcodec_open2(avctx, codec, options); - - ff_lock_avcodec(avctx); - return ret; -} - -int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options) -{ - int ret = 0; - AVDictionary *tmp = NULL; - - if (avcodec_is_open(avctx)) - return 0; - - if ((!codec && !avctx->codec)) { - av_log(avctx, AV_LOG_ERROR, "No codec provided to avcodec_open2()\n"); - return AVERROR(EINVAL); - } - if ((codec && avctx->codec && codec != avctx->codec)) { - av_log(avctx, AV_LOG_ERROR, "This AVCodecContext was allocated for %s, " - "but %s passed to avcodec_open2()\n", avctx->codec->name, codec->name); - return AVERROR(EINVAL); - } - if (!codec) - codec = avctx->codec; - - if (avctx->extradata_size < 0 || avctx->extradata_size >= FF_MAX_EXTRADATA_SIZE) - return AVERROR(EINVAL); - - if (options) - av_dict_copy(&tmp, *options, 0); - - ret = ff_lock_avcodec(avctx); - if (ret < 0) - return ret; - - avctx->internal = av_mallocz(sizeof(AVCodecInternal)); - if (!avctx->internal) { - ret = AVERROR(ENOMEM); - goto end; - } - - avctx->internal->pool = av_mallocz(sizeof(*avctx->internal->pool)); - if (!avctx->internal->pool) { - ret = AVERROR(ENOMEM); - goto free_and_end; - } - - if (codec->priv_data_size > 0) { - if (!avctx->priv_data) { - avctx->priv_data = av_mallocz(codec->priv_data_size); - if (!avctx->priv_data) { - ret = AVERROR(ENOMEM); - goto end; - } - if (codec->priv_class) { - *(const AVClass **)avctx->priv_data = codec->priv_class; - av_opt_set_defaults(avctx->priv_data); - } - } - if (codec->priv_class && (ret = av_opt_set_dict(avctx->priv_data, &tmp)) < 0) - goto free_and_end; - } else { - avctx->priv_data = NULL; - } - if ((ret = av_opt_set_dict(avctx, &tmp)) < 0) - goto free_and_end; - - // only call avcodec_set_dimensions() for non H.264/VP6F codecs so as not to overwrite previously setup dimensions - if (!(avctx->coded_width && avctx->coded_height && avctx->width && avctx->height && - (avctx->codec_id == AV_CODEC_ID_H264 || avctx->codec_id == AV_CODEC_ID_VP6F))) { - if (avctx->coded_width && avctx->coded_height) - avcodec_set_dimensions(avctx, avctx->coded_width, avctx->coded_height); - else if (avctx->width && avctx->height) - avcodec_set_dimensions(avctx, avctx->width, avctx->height); - } - - if ((avctx->coded_width || avctx->coded_height || avctx->width || avctx->height) - && ( av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx) < 0 - || av_image_check_size(avctx->width, avctx->height, 0, avctx) < 0)) { - av_log(avctx, AV_LOG_WARNING, "Ignoring invalid width/height values\n"); - avcodec_set_dimensions(avctx, 0, 0); - } - - /* if the decoder init function was already called previously, - * free the already allocated subtitle_header before overwriting it */ - if (av_codec_is_decoder(codec)) - av_freep(&avctx->subtitle_header); - - if (avctx->channels > FF_SANE_NB_CHANNELS) { - ret = AVERROR(EINVAL); - goto free_and_end; - } - - avctx->codec = codec; - if ((avctx->codec_type == AVMEDIA_TYPE_UNKNOWN || avctx->codec_type == codec->type) && - avctx->codec_id == AV_CODEC_ID_NONE) { - avctx->codec_type = codec->type; - avctx->codec_id = codec->id; - } - if (avctx->codec_id != codec->id || (avctx->codec_type != codec->type - && avctx->codec_type != AVMEDIA_TYPE_ATTACHMENT)) { - av_log(avctx, AV_LOG_ERROR, "Codec type or id mismatches\n"); - ret = AVERROR(EINVAL); - goto free_and_end; - } - avctx->frame_number = 0; - avctx->codec_descriptor = avcodec_descriptor_get(avctx->codec_id); - - if (avctx->codec->capabilities & CODEC_CAP_EXPERIMENTAL && - avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { - const char *codec_string = av_codec_is_encoder(codec) ? "encoder" : "decoder"; - AVCodec *codec2; - av_log(NULL, AV_LOG_ERROR, - "The %s '%s' is experimental but experimental codecs are not enabled, " - "add '-strict %d' if you want to use it.\n", - codec_string, codec->name, FF_COMPLIANCE_EXPERIMENTAL); - codec2 = av_codec_is_encoder(codec) ? avcodec_find_encoder(codec->id) : avcodec_find_decoder(codec->id); - if (!(codec2->capabilities & CODEC_CAP_EXPERIMENTAL)) - av_log(NULL, AV_LOG_ERROR, "Alternatively use the non experimental %s '%s'.\n", - codec_string, codec2->name); - ret = AVERROR_EXPERIMENTAL; - goto free_and_end; - } - - if (avctx->codec_type == AVMEDIA_TYPE_AUDIO && - (!avctx->time_base.num || !avctx->time_base.den)) { - avctx->time_base.num = 1; - avctx->time_base.den = avctx->sample_rate; - } - - if (!HAVE_THREADS) - av_log(avctx, AV_LOG_WARNING, "Warning: not compiled with thread support, using thread emulation\n"); - - if (CONFIG_FRAME_THREAD_ENCODER) { - ff_unlock_avcodec(); //we will instanciate a few encoders thus kick the counter to prevent false detection of a problem - ret = ff_frame_thread_encoder_init(avctx, options ? *options : NULL); - ff_lock_avcodec(avctx); - if (ret < 0) - goto free_and_end; - } - - if (HAVE_THREADS && !avctx->thread_opaque - && !(avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME))) { - ret = ff_thread_init(avctx); - if (ret < 0) { - goto free_and_end; - } - } - if (!HAVE_THREADS && !(codec->capabilities & CODEC_CAP_AUTO_THREADS)) - avctx->thread_count = 1; - - if (avctx->codec->max_lowres < avctx->lowres || avctx->lowres < 0) { - av_log(avctx, AV_LOG_ERROR, "The maximum value for lowres supported by the decoder is %d\n", - avctx->codec->max_lowres); - ret = AVERROR(EINVAL); - goto free_and_end; - } - - if (av_codec_is_encoder(avctx->codec)) { - int i; - if (avctx->codec->sample_fmts) { - for (i = 0; avctx->codec->sample_fmts[i] != AV_SAMPLE_FMT_NONE; i++) { - if (avctx->sample_fmt == avctx->codec->sample_fmts[i]) - break; - if (avctx->channels == 1 && - av_get_planar_sample_fmt(avctx->sample_fmt) == - av_get_planar_sample_fmt(avctx->codec->sample_fmts[i])) { - avctx->sample_fmt = avctx->codec->sample_fmts[i]; - break; - } - } - if (avctx->codec->sample_fmts[i] == AV_SAMPLE_FMT_NONE) { - char buf[128]; - snprintf(buf, sizeof(buf), "%d", avctx->sample_fmt); - av_log(avctx, AV_LOG_ERROR, "Specified sample format %s is invalid or not supported\n", - (char *)av_x_if_null(av_get_sample_fmt_name(avctx->sample_fmt), buf)); - ret = AVERROR(EINVAL); - goto free_and_end; - } - } - if (avctx->codec->pix_fmts) { - for (i = 0; avctx->codec->pix_fmts[i] != AV_PIX_FMT_NONE; i++) - if (avctx->pix_fmt == avctx->codec->pix_fmts[i]) - break; - if (avctx->codec->pix_fmts[i] == AV_PIX_FMT_NONE - && !((avctx->codec_id == AV_CODEC_ID_MJPEG || avctx->codec_id == AV_CODEC_ID_LJPEG) - && avctx->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL)) { - char buf[128]; - snprintf(buf, sizeof(buf), "%d", avctx->pix_fmt); - av_log(avctx, AV_LOG_ERROR, "Specified pixel format %s is invalid or not supported\n", - (char *)av_x_if_null(av_get_pix_fmt_name(avctx->pix_fmt), buf)); - ret = AVERROR(EINVAL); - goto free_and_end; - } - } - if (avctx->codec->supported_samplerates) { - for (i = 0; avctx->codec->supported_samplerates[i] != 0; i++) - if (avctx->sample_rate == avctx->codec->supported_samplerates[i]) - break; - if (avctx->codec->supported_samplerates[i] == 0) { - av_log(avctx, AV_LOG_ERROR, "Specified sample rate %d is not supported\n", - avctx->sample_rate); - ret = AVERROR(EINVAL); - goto free_and_end; - } - } - if (avctx->codec->channel_layouts) { - if (!avctx->channel_layout) { - av_log(avctx, AV_LOG_WARNING, "Channel layout not specified\n"); - } else { - for (i = 0; avctx->codec->channel_layouts[i] != 0; i++) - if (avctx->channel_layout == avctx->codec->channel_layouts[i]) - break; - if (avctx->codec->channel_layouts[i] == 0) { - char buf[512]; - av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); - av_log(avctx, AV_LOG_ERROR, "Specified channel layout '%s' is not supported\n", buf); - ret = AVERROR(EINVAL); - goto free_and_end; - } - } - } - if (avctx->channel_layout && avctx->channels) { - int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); - if (channels != avctx->channels) { - char buf[512]; - av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); - av_log(avctx, AV_LOG_ERROR, - "Channel layout '%s' with %d channels does not match number of specified channels %d\n", - buf, channels, avctx->channels); - ret = AVERROR(EINVAL); - goto free_and_end; - } - } else if (avctx->channel_layout) { - avctx->channels = av_get_channel_layout_nb_channels(avctx->channel_layout); - } - if(avctx->codec_type == AVMEDIA_TYPE_VIDEO && - avctx->codec_id != AV_CODEC_ID_PNG // For mplayer - ) { - if (avctx->width <= 0 || avctx->height <= 0) { - av_log(avctx, AV_LOG_ERROR, "dimensions not set\n"); - ret = AVERROR(EINVAL); - goto free_and_end; - } - } - if ( (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO) - && avctx->bit_rate>0 && avctx->bit_rate<1000) { - av_log(avctx, AV_LOG_WARNING, "Bitrate %d is extremely low, maybe you mean %dk\n", avctx->bit_rate, avctx->bit_rate); - } - - if (!avctx->rc_initial_buffer_occupancy) - avctx->rc_initial_buffer_occupancy = avctx->rc_buffer_size * 3 / 4; - } - - avctx->pts_correction_num_faulty_pts = - avctx->pts_correction_num_faulty_dts = 0; - avctx->pts_correction_last_pts = - avctx->pts_correction_last_dts = INT64_MIN; - - if ( avctx->codec->init && (!(avctx->active_thread_type&FF_THREAD_FRAME) - || avctx->internal->frame_thread_encoder)) { - ret = avctx->codec->init(avctx); - if (ret < 0) { - goto free_and_end; - } - } - - ret=0; - - if (av_codec_is_decoder(avctx->codec)) { - if (!avctx->bit_rate) - avctx->bit_rate = get_bit_rate(avctx); - /* validate channel layout from the decoder */ - if (avctx->channel_layout) { - int channels = av_get_channel_layout_nb_channels(avctx->channel_layout); - if (!avctx->channels) - avctx->channels = channels; - else if (channels != avctx->channels) { - char buf[512]; - av_get_channel_layout_string(buf, sizeof(buf), -1, avctx->channel_layout); - av_log(avctx, AV_LOG_WARNING, - "Channel layout '%s' with %d channels does not match specified number of channels %d: " - "ignoring specified channel layout\n", - buf, channels, avctx->channels); - avctx->channel_layout = 0; - } - } - if (avctx->channels && avctx->channels < 0 || - avctx->channels > FF_SANE_NB_CHANNELS) { - ret = AVERROR(EINVAL); - goto free_and_end; - } - if (avctx->sub_charenc) { - if (avctx->codec_type != AVMEDIA_TYPE_SUBTITLE) { - av_log(avctx, AV_LOG_ERROR, "Character encoding is only " - "supported with subtitles codecs\n"); - ret = AVERROR(EINVAL); - goto free_and_end; - } else if (avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB) { - av_log(avctx, AV_LOG_WARNING, "Codec '%s' is bitmap-based, " - "subtitles character encoding will be ignored\n", - avctx->codec_descriptor->name); - avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_DO_NOTHING; - } else { - /* input character encoding is set for a text based subtitle - * codec at this point */ - if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_AUTOMATIC) - avctx->sub_charenc_mode = FF_SUB_CHARENC_MODE_PRE_DECODER; - - if (avctx->sub_charenc_mode == FF_SUB_CHARENC_MODE_PRE_DECODER) { -#if CONFIG_ICONV - iconv_t cd = iconv_open("UTF-8", avctx->sub_charenc); - if (cd == (iconv_t)-1) { - av_log(avctx, AV_LOG_ERROR, "Unable to open iconv context " - "with input character encoding \"%s\"\n", avctx->sub_charenc); - ret = AVERROR(errno); - goto free_and_end; - } - iconv_close(cd); -#else - av_log(avctx, AV_LOG_ERROR, "Character encoding subtitles " - "conversion needs a libavcodec built with iconv support " - "for this codec\n"); - ret = AVERROR(ENOSYS); - goto free_and_end; -#endif - } - } - } - } -end: - ff_unlock_avcodec(); - if (options) { - av_dict_free(options); - *options = tmp; - } - - return ret; -free_and_end: - av_dict_free(&tmp); - av_freep(&avctx->priv_data); - if (avctx->internal) - av_freep(&avctx->internal->pool); - av_freep(&avctx->internal); - avctx->codec = NULL; - goto end; -} - -int ff_alloc_packet2(AVCodecContext *avctx, AVPacket *avpkt, int size) -{ - if (size < 0 || avpkt->size < 0 || size > INT_MAX - FF_INPUT_BUFFER_PADDING_SIZE) { - av_log(avctx, AV_LOG_ERROR, "Size %d invalid\n", size); - return AVERROR(EINVAL); - } - - if (avctx) { - av_assert0(!avpkt->data || avpkt->data != avctx->internal->byte_buffer); - if (!avpkt->data || avpkt->size < size) { - av_fast_padded_malloc(&avctx->internal->byte_buffer, &avctx->internal->byte_buffer_size, size); - avpkt->data = avctx->internal->byte_buffer; - avpkt->size = avctx->internal->byte_buffer_size; - avpkt->destruct = NULL; - } - } - - if (avpkt->data) { - AVBufferRef *buf = avpkt->buf; -#if FF_API_DESTRUCT_PACKET - void *destruct = avpkt->destruct; -#endif - - if (avpkt->size < size) { - av_log(avctx, AV_LOG_ERROR, "User packet is too small (%d < %d)\n", avpkt->size, size); - return AVERROR(EINVAL); - } - - av_init_packet(avpkt); -#if FF_API_DESTRUCT_PACKET - avpkt->destruct = destruct; -#endif - avpkt->buf = buf; - avpkt->size = size; - return 0; - } else { - int ret = av_new_packet(avpkt, size); - if (ret < 0) - av_log(avctx, AV_LOG_ERROR, "Failed to allocate packet of size %d\n", size); - return ret; - } -} - -int ff_alloc_packet(AVPacket *avpkt, int size) -{ - return ff_alloc_packet2(NULL, avpkt, size); -} - -/** - * Pad last frame with silence. - */ -static int pad_last_frame(AVCodecContext *s, AVFrame **dst, const AVFrame *src) -{ - AVFrame *frame = NULL; - uint8_t *buf = NULL; - int ret; - - if (!(frame = avcodec_alloc_frame())) - return AVERROR(ENOMEM); - *frame = *src; - - if ((ret = av_samples_get_buffer_size(&frame->linesize[0], s->channels, - s->frame_size, s->sample_fmt, 0)) < 0) - goto fail; - - if (!(buf = av_malloc(ret))) { - ret = AVERROR(ENOMEM); - goto fail; - } - - frame->nb_samples = s->frame_size; - if ((ret = avcodec_fill_audio_frame(frame, s->channels, s->sample_fmt, - buf, ret, 0)) < 0) - goto fail; - if ((ret = av_samples_copy(frame->extended_data, src->extended_data, 0, 0, - src->nb_samples, s->channels, s->sample_fmt)) < 0) - goto fail; - if ((ret = av_samples_set_silence(frame->extended_data, src->nb_samples, - frame->nb_samples - src->nb_samples, - s->channels, s->sample_fmt)) < 0) - goto fail; - - *dst = frame; - - return 0; - -fail: - if (frame->extended_data != frame->data) - av_freep(&frame->extended_data); - av_freep(&buf); - av_freep(&frame); - return ret; -} - -int attribute_align_arg avcodec_encode_audio2(AVCodecContext *avctx, - AVPacket *avpkt, - const AVFrame *frame, - int *got_packet_ptr) -{ - AVFrame tmp; - AVFrame *padded_frame = NULL; - int ret; - AVPacket user_pkt = *avpkt; - int needs_realloc = !user_pkt.data; - - *got_packet_ptr = 0; - - if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) { - av_free_packet(avpkt); - av_init_packet(avpkt); - return 0; - } - - /* ensure that extended_data is properly set */ - if (frame && !frame->extended_data) { - if (av_sample_fmt_is_planar(avctx->sample_fmt) && - avctx->channels > AV_NUM_DATA_POINTERS) { - av_log(avctx, AV_LOG_ERROR, "Encoding to a planar sample format, " - "with more than %d channels, but extended_data is not set.\n", - AV_NUM_DATA_POINTERS); - return AVERROR(EINVAL); - } - av_log(avctx, AV_LOG_WARNING, "extended_data is not set.\n"); - - tmp = *frame; - tmp.extended_data = tmp.data; - frame = &tmp; - } - - /* check for valid frame size */ - if (frame) { - if (avctx->codec->capabilities & CODEC_CAP_SMALL_LAST_FRAME) { - if (frame->nb_samples > avctx->frame_size) { - av_log(avctx, AV_LOG_ERROR, "more samples than frame size (avcodec_encode_audio2)\n"); - return AVERROR(EINVAL); - } - } else if (!(avctx->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) { - if (frame->nb_samples < avctx->frame_size && - !avctx->internal->last_audio_frame) { - ret = pad_last_frame(avctx, &padded_frame, frame); - if (ret < 0) - return ret; - - frame = padded_frame; - avctx->internal->last_audio_frame = 1; - } - - if (frame->nb_samples != avctx->frame_size) { - av_log(avctx, AV_LOG_ERROR, "nb_samples (%d) != frame_size (%d) (avcodec_encode_audio2)\n", frame->nb_samples, avctx->frame_size); - ret = AVERROR(EINVAL); - goto end; - } - } - } - - ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); - if (!ret) { - if (*got_packet_ptr) { - if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) { - if (avpkt->pts == AV_NOPTS_VALUE) - avpkt->pts = frame->pts; - if (!avpkt->duration) - avpkt->duration = ff_samples_to_time_base(avctx, - frame->nb_samples); - } - avpkt->dts = avpkt->pts; - } else { - avpkt->size = 0; - } - } - if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { - needs_realloc = 0; - if (user_pkt.data) { - if (user_pkt.size >= avpkt->size) { - memcpy(user_pkt.data, avpkt->data, avpkt->size); - } else { - av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); - avpkt->size = user_pkt.size; - ret = -1; - } - avpkt->buf = user_pkt.buf; - avpkt->data = user_pkt.data; - avpkt->destruct = user_pkt.destruct; - } else { - if (av_dup_packet(avpkt) < 0) { - ret = AVERROR(ENOMEM); - } - } - } - - if (!ret) { - if (needs_realloc && avpkt->data) { - ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE); - if (ret >= 0) - avpkt->data = avpkt->buf->data; - } - - avctx->frame_number++; - } - - if (ret < 0 || !*got_packet_ptr) { - av_free_packet(avpkt); - av_init_packet(avpkt); - goto end; - } - - /* NOTE: if we add any audio encoders which output non-keyframe packets, - * this needs to be moved to the encoders, but for now we can do it - * here to simplify things */ - avpkt->flags |= AV_PKT_FLAG_KEY; - -end: - if (padded_frame) { - av_freep(&padded_frame->data[0]); - if (padded_frame->extended_data != padded_frame->data) - av_freep(&padded_frame->extended_data); - av_freep(&padded_frame); - } - - return ret; -} - -#if FF_API_OLD_ENCODE_AUDIO -int attribute_align_arg avcodec_encode_audio(AVCodecContext *avctx, - uint8_t *buf, int buf_size, - const short *samples) -{ - AVPacket pkt; - AVFrame frame0 = { { 0 } }; - AVFrame *frame; - int ret, samples_size, got_packet; - - av_init_packet(&pkt); - pkt.data = buf; - pkt.size = buf_size; - - if (samples) { - frame = &frame0; - avcodec_get_frame_defaults(frame); - - if (avctx->frame_size) { - frame->nb_samples = avctx->frame_size; - } else { - /* if frame_size is not set, the number of samples must be - * calculated from the buffer size */ - int64_t nb_samples; - if (!av_get_bits_per_sample(avctx->codec_id)) { - av_log(avctx, AV_LOG_ERROR, "avcodec_encode_audio() does not " - "support this codec\n"); - return AVERROR(EINVAL); - } - nb_samples = (int64_t)buf_size * 8 / - (av_get_bits_per_sample(avctx->codec_id) * - avctx->channels); - if (nb_samples >= INT_MAX) - return AVERROR(EINVAL); - frame->nb_samples = nb_samples; - } - - /* it is assumed that the samples buffer is large enough based on the - * relevant parameters */ - samples_size = av_samples_get_buffer_size(NULL, avctx->channels, - frame->nb_samples, - avctx->sample_fmt, 1); - if ((ret = avcodec_fill_audio_frame(frame, avctx->channels, - avctx->sample_fmt, - (const uint8_t *)samples, - samples_size, 1)) < 0) - return ret; - - /* fabricate frame pts from sample count. - * this is needed because the avcodec_encode_audio() API does not have - * a way for the user to provide pts */ - if (avctx->sample_rate && avctx->time_base.num) - frame->pts = ff_samples_to_time_base(avctx, - avctx->internal->sample_count); - else - frame->pts = AV_NOPTS_VALUE; - avctx->internal->sample_count += frame->nb_samples; - } else { - frame = NULL; - } - - got_packet = 0; - ret = avcodec_encode_audio2(avctx, &pkt, frame, &got_packet); - if (!ret && got_packet && avctx->coded_frame) { - avctx->coded_frame->pts = pkt.pts; - avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY); - } - /* free any side data since we cannot return it */ - ff_packet_free_side_data(&pkt); - - if (frame && frame->extended_data != frame->data) - av_freep(&frame->extended_data); - - return ret ? ret : pkt.size; -} - -#endif - -#if FF_API_OLD_ENCODE_VIDEO -int attribute_align_arg avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, - const AVFrame *pict) -{ - AVPacket pkt; - int ret, got_packet = 0; - - if (buf_size < FF_MIN_BUFFER_SIZE) { - av_log(avctx, AV_LOG_ERROR, "buffer smaller than minimum size\n"); - return -1; - } - - av_init_packet(&pkt); - pkt.data = buf; - pkt.size = buf_size; - - ret = avcodec_encode_video2(avctx, &pkt, pict, &got_packet); - if (!ret && got_packet && avctx->coded_frame) { - avctx->coded_frame->pts = pkt.pts; - avctx->coded_frame->key_frame = !!(pkt.flags & AV_PKT_FLAG_KEY); - } - - /* free any side data since we cannot return it */ - if (pkt.side_data_elems > 0) { - int i; - for (i = 0; i < pkt.side_data_elems; i++) - av_free(pkt.side_data[i].data); - av_freep(&pkt.side_data); - pkt.side_data_elems = 0; - } - - return ret ? ret : pkt.size; -} - -#endif - -int attribute_align_arg avcodec_encode_video2(AVCodecContext *avctx, - AVPacket *avpkt, - const AVFrame *frame, - int *got_packet_ptr) -{ - int ret; - AVPacket user_pkt = *avpkt; - int needs_realloc = !user_pkt.data; - - *got_packet_ptr = 0; - - if(CONFIG_FRAME_THREAD_ENCODER && - avctx->internal->frame_thread_encoder && (avctx->active_thread_type&FF_THREAD_FRAME)) - return ff_thread_video_encode_frame(avctx, avpkt, frame, got_packet_ptr); - - if ((avctx->flags&CODEC_FLAG_PASS1) && avctx->stats_out) - avctx->stats_out[0] = '\0'; - - if (!(avctx->codec->capabilities & CODEC_CAP_DELAY) && !frame) { - av_free_packet(avpkt); - av_init_packet(avpkt); - avpkt->size = 0; - return 0; - } - - if (av_image_check_size(avctx->width, avctx->height, 0, avctx)) - return AVERROR(EINVAL); - - av_assert0(avctx->codec->encode2); - - ret = avctx->codec->encode2(avctx, avpkt, frame, got_packet_ptr); - av_assert0(ret <= 0); - - if (avpkt->data && avpkt->data == avctx->internal->byte_buffer) { - needs_realloc = 0; - if (user_pkt.data) { - if (user_pkt.size >= avpkt->size) { - memcpy(user_pkt.data, avpkt->data, avpkt->size); - } else { - av_log(avctx, AV_LOG_ERROR, "Provided packet is too small, needs to be %d\n", avpkt->size); - avpkt->size = user_pkt.size; - ret = -1; - } - avpkt->buf = user_pkt.buf; - avpkt->data = user_pkt.data; - avpkt->destruct = user_pkt.destruct; - } else { - if (av_dup_packet(avpkt) < 0) { - ret = AVERROR(ENOMEM); - } - } - } - - if (!ret) { - if (!*got_packet_ptr) - avpkt->size = 0; - else if (!(avctx->codec->capabilities & CODEC_CAP_DELAY)) - avpkt->pts = avpkt->dts = frame->pts; - - if (needs_realloc && avpkt->data) { - ret = av_buffer_realloc(&avpkt->buf, avpkt->size + FF_INPUT_BUFFER_PADDING_SIZE); - if (ret >= 0) - avpkt->data = avpkt->buf->data; - } - - avctx->frame_number++; - } - - if (ret < 0 || !*got_packet_ptr) - av_free_packet(avpkt); - - emms_c(); - return ret; -} - -int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, - const AVSubtitle *sub) -{ - int ret; - if (sub->start_display_time) { - av_log(avctx, AV_LOG_ERROR, "start_display_time must be 0.\n"); - return -1; - } - - ret = avctx->codec->encode_sub(avctx, buf, buf_size, sub); - avctx->frame_number++; - return ret; -} - -/** - * Attempt to guess proper monotonic timestamps for decoded video frames - * which might have incorrect times. Input timestamps may wrap around, in - * which case the output will as well. - * - * @param pts the pts field of the decoded AVPacket, as passed through - * AVFrame.pkt_pts - * @param dts the dts field of the decoded AVPacket - * @return one of the input values, may be AV_NOPTS_VALUE - */ -static int64_t guess_correct_pts(AVCodecContext *ctx, - int64_t reordered_pts, int64_t dts) -{ - int64_t pts = AV_NOPTS_VALUE; - - if (dts != AV_NOPTS_VALUE) { - ctx->pts_correction_num_faulty_dts += dts <= ctx->pts_correction_last_dts; - ctx->pts_correction_last_dts = dts; - } - if (reordered_pts != AV_NOPTS_VALUE) { - ctx->pts_correction_num_faulty_pts += reordered_pts <= ctx->pts_correction_last_pts; - ctx->pts_correction_last_pts = reordered_pts; - } - if ((ctx->pts_correction_num_faulty_pts<=ctx->pts_correction_num_faulty_dts || dts == AV_NOPTS_VALUE) - && reordered_pts != AV_NOPTS_VALUE) - pts = reordered_pts; - else - pts = dts; - - return pts; -} - -static void apply_param_change(AVCodecContext *avctx, AVPacket *avpkt) -{ - int size = 0; - const uint8_t *data; - uint32_t flags; - - if (!(avctx->codec->capabilities & CODEC_CAP_PARAM_CHANGE)) - return; - - data = av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, &size); - if (!data || size < 4) - return; - flags = bytestream_get_le32(&data); - size -= 4; - if (size < 4) /* Required for any of the changes */ - return; - if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) { - avctx->channels = bytestream_get_le32(&data); - size -= 4; - } - if (flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) { - if (size < 8) - return; - avctx->channel_layout = bytestream_get_le64(&data); - size -= 8; - } - if (size < 4) - return; - if (flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) { - avctx->sample_rate = bytestream_get_le32(&data); - size -= 4; - } - if (flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) { - if (size < 8) - return; - avctx->width = bytestream_get_le32(&data); - avctx->height = bytestream_get_le32(&data); - avcodec_set_dimensions(avctx, avctx->width, avctx->height); - size -= 8; - } -} - -static int add_metadata_from_side_data(AVCodecContext *avctx, AVFrame *frame) -{ - int size, ret = 0; - const uint8_t *side_metadata; - const uint8_t *end; - - side_metadata = av_packet_get_side_data(avctx->pkt, - AV_PKT_DATA_STRINGS_METADATA, &size); - if (!side_metadata) - goto end; - end = side_metadata + size; - while (side_metadata < end) { - const uint8_t *key = side_metadata; - const uint8_t *val = side_metadata + strlen(key) + 1; - int ret = av_dict_set(avpriv_frame_get_metadatap(frame), key, val, 0); - if (ret < 0) - break; - side_metadata = val + strlen(val) + 1; - } -end: - return ret; -} - -int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, - int *got_picture_ptr, - const AVPacket *avpkt) -{ - AVCodecInternal *avci = avctx->internal; - int ret; - // copy to ensure we do not change avpkt - AVPacket tmp = *avpkt; - - if (avctx->codec->type != AVMEDIA_TYPE_VIDEO) { - av_log(avctx, AV_LOG_ERROR, "Invalid media type for video\n"); - return AVERROR(EINVAL); - } - - *got_picture_ptr = 0; - if ((avctx->coded_width || avctx->coded_height) && av_image_check_size(avctx->coded_width, avctx->coded_height, 0, avctx)) - return AVERROR(EINVAL); - - avcodec_get_frame_defaults(picture); - - if (!avctx->refcounted_frames) - av_frame_unref(&avci->to_free); - - if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size || (avctx->active_thread_type & FF_THREAD_FRAME)) { - int did_split = av_packet_split_side_data(&tmp); - apply_param_change(avctx, &tmp); - avctx->pkt = &tmp; - if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) - ret = ff_thread_decode_frame(avctx, picture, got_picture_ptr, - &tmp); - else { - ret = avctx->codec->decode(avctx, picture, got_picture_ptr, - &tmp); - picture->pkt_dts = avpkt->dts; - - if(!avctx->has_b_frames){ - av_frame_set_pkt_pos(picture, avpkt->pos); - } - //FIXME these should be under if(!avctx->has_b_frames) - /* get_buffer is supposed to set frame parameters */ - if (!(avctx->codec->capabilities & CODEC_CAP_DR1)) { - if (!picture->sample_aspect_ratio.num) picture->sample_aspect_ratio = avctx->sample_aspect_ratio; - if (!picture->width) picture->width = avctx->width; - if (!picture->height) picture->height = avctx->height; - if (picture->format == AV_PIX_FMT_NONE) picture->format = avctx->pix_fmt; - } - } - add_metadata_from_side_data(avctx, picture); - - emms_c(); //needed to avoid an emms_c() call before every return; - - avctx->pkt = NULL; - if (did_split) { - ff_packet_free_side_data(&tmp); - if(ret == tmp.size) - ret = avpkt->size; - } - - if (ret < 0 && picture->data[0]) - av_frame_unref(picture); - - if (*got_picture_ptr) { - if (!avctx->refcounted_frames) { - avci->to_free = *picture; - avci->to_free.extended_data = avci->to_free.data; - } - - avctx->frame_number++; - av_frame_set_best_effort_timestamp(picture, - guess_correct_pts(avctx, - picture->pkt_pts, - picture->pkt_dts)); - } - } else - ret = 0; - - /* many decoders assign whole AVFrames, thus overwriting extended_data; - * make sure it's set correctly */ - picture->extended_data = picture->data; - - return ret; -} - -#if FF_API_OLD_DECODE_AUDIO -int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples, - int *frame_size_ptr, - AVPacket *avpkt) -{ - AVFrame frame = { { 0 } }; - int ret, got_frame = 0; - - if (avctx->get_buffer != avcodec_default_get_buffer) { - av_log(avctx, AV_LOG_ERROR, "Custom get_buffer() for use with" - "avcodec_decode_audio3() detected. Overriding with avcodec_default_get_buffer\n"); - av_log(avctx, AV_LOG_ERROR, "Please port your application to " - "avcodec_decode_audio4()\n"); - avctx->get_buffer = avcodec_default_get_buffer; - avctx->release_buffer = avcodec_default_release_buffer; - } - - ret = avcodec_decode_audio4(avctx, &frame, &got_frame, avpkt); - - if (ret >= 0 && got_frame) { - int ch, plane_size; - int planar = av_sample_fmt_is_planar(avctx->sample_fmt); - int data_size = av_samples_get_buffer_size(&plane_size, avctx->channels, - frame.nb_samples, - avctx->sample_fmt, 1); - if (*frame_size_ptr < data_size) { - av_log(avctx, AV_LOG_ERROR, "output buffer size is too small for " - "the current frame (%d < %d)\n", *frame_size_ptr, data_size); - return AVERROR(EINVAL); - } - - memcpy(samples, frame.extended_data[0], plane_size); - - if (planar && avctx->channels > 1) { - uint8_t *out = ((uint8_t *)samples) + plane_size; - for (ch = 1; ch < avctx->channels; ch++) { - memcpy(out, frame.extended_data[ch], plane_size); - out += plane_size; - } - } - *frame_size_ptr = data_size; - } else { - *frame_size_ptr = 0; - } - return ret; -} - -#endif - -int attribute_align_arg avcodec_decode_audio4(AVCodecContext *avctx, - AVFrame *frame, - int *got_frame_ptr, - const AVPacket *avpkt) -{ - AVCodecInternal *avci = avctx->internal; - int planar, channels; - int ret = 0; - - *got_frame_ptr = 0; - - if (!avpkt->data && avpkt->size) { - av_log(avctx, AV_LOG_ERROR, "invalid packet: NULL data, size != 0\n"); - return AVERROR(EINVAL); - } - if (avctx->codec->type != AVMEDIA_TYPE_AUDIO) { - av_log(avctx, AV_LOG_ERROR, "Invalid media type for audio\n"); - return AVERROR(EINVAL); - } - - avcodec_get_frame_defaults(frame); - - if (!avctx->refcounted_frames) - av_frame_unref(&avci->to_free); - - if ((avctx->codec->capabilities & CODEC_CAP_DELAY) || avpkt->size) { - uint8_t *side; - int side_size; - // copy to ensure we do not change avpkt - AVPacket tmp = *avpkt; - int did_split = av_packet_split_side_data(&tmp); - apply_param_change(avctx, &tmp); - - avctx->pkt = &tmp; - ret = avctx->codec->decode(avctx, frame, got_frame_ptr, &tmp); - if (ret >= 0 && *got_frame_ptr) { - add_metadata_from_side_data(avctx, frame); - avctx->frame_number++; - frame->pkt_dts = avpkt->dts; - av_frame_set_best_effort_timestamp(frame, - guess_correct_pts(avctx, - frame->pkt_pts, - frame->pkt_dts)); - if (frame->format == AV_SAMPLE_FMT_NONE) - frame->format = avctx->sample_fmt; - if (!frame->channel_layout) - frame->channel_layout = avctx->channel_layout; - if (!av_frame_get_channels(frame)) - av_frame_set_channels(frame, avctx->channels); - if (!frame->sample_rate) - frame->sample_rate = avctx->sample_rate; - if (!avctx->refcounted_frames) { - avci->to_free = *frame; - avci->to_free.extended_data = avci->to_free.data; - } - } - - side= av_packet_get_side_data(avctx->pkt, AV_PKT_DATA_SKIP_SAMPLES, &side_size); - if(side && side_size>=10) { - avctx->internal->skip_samples = AV_RL32(side); - av_log(avctx, AV_LOG_DEBUG, "skip %d samples due to side data\n", - avctx->internal->skip_samples); - } - if (avctx->internal->skip_samples && *got_frame_ptr) { - if(frame->nb_samples <= avctx->internal->skip_samples){ - *got_frame_ptr = 0; - avctx->internal->skip_samples -= frame->nb_samples; - av_log(avctx, AV_LOG_DEBUG, "skip whole frame, skip left: %d\n", - avctx->internal->skip_samples); - } else { - av_samples_copy(frame->extended_data, frame->extended_data, 0, avctx->internal->skip_samples, - frame->nb_samples - avctx->internal->skip_samples, avctx->channels, frame->format); - if(avctx->pkt_timebase.num && avctx->sample_rate) { - int64_t diff_ts = av_rescale_q(avctx->internal->skip_samples, - (AVRational){1, avctx->sample_rate}, - avctx->pkt_timebase); - if(frame->pkt_pts!=AV_NOPTS_VALUE) - frame->pkt_pts += diff_ts; - if(frame->pkt_dts!=AV_NOPTS_VALUE) - frame->pkt_dts += diff_ts; - if (av_frame_get_pkt_duration(frame) >= diff_ts) - av_frame_set_pkt_duration(frame, av_frame_get_pkt_duration(frame) - diff_ts); - } else { - av_log(avctx, AV_LOG_WARNING, "Could not update timestamps for skipped samples.\n"); - } - av_log(avctx, AV_LOG_DEBUG, "skip %d/%d samples\n", - avctx->internal->skip_samples, frame->nb_samples); - frame->nb_samples -= avctx->internal->skip_samples; - avctx->internal->skip_samples = 0; - } - } - - avctx->pkt = NULL; - if (did_split) { - ff_packet_free_side_data(&tmp); - if(ret == tmp.size) - ret = avpkt->size; - } - - if (ret < 0 && frame->data[0]) - av_frame_unref(frame); - } - - /* many decoders assign whole AVFrames, thus overwriting extended_data; - * make sure it's set correctly; assume decoders that actually use - * extended_data are doing it correctly */ - if (*got_frame_ptr) { - planar = av_sample_fmt_is_planar(frame->format); - channels = av_frame_get_channels(frame); - if (!(planar && channels > AV_NUM_DATA_POINTERS)) - frame->extended_data = frame->data; - } else { - frame->extended_data = NULL; - } - - return ret; -} - -#define UTF8_MAX_BYTES 4 /* 5 and 6 bytes sequences should not be used */ -static int recode_subtitle(AVCodecContext *avctx, - AVPacket *outpkt, const AVPacket *inpkt) -{ -#if CONFIG_ICONV - iconv_t cd = (iconv_t)-1; - int ret = 0; - char *inb, *outb; - size_t inl, outl; - AVPacket tmp; -#endif - - if (avctx->sub_charenc_mode != FF_SUB_CHARENC_MODE_PRE_DECODER) - return 0; - -#if CONFIG_ICONV - cd = iconv_open("UTF-8", avctx->sub_charenc); - av_assert0(cd != (iconv_t)-1); - - inb = inpkt->data; - inl = inpkt->size; - - if (inl >= INT_MAX / UTF8_MAX_BYTES - FF_INPUT_BUFFER_PADDING_SIZE) { - av_log(avctx, AV_LOG_ERROR, "Subtitles packet is too big for recoding\n"); - ret = AVERROR(ENOMEM); - goto end; - } - - ret = av_new_packet(&tmp, inl * UTF8_MAX_BYTES); - if (ret < 0) - goto end; - outpkt->buf = tmp.buf; - outpkt->data = tmp.data; - outpkt->size = tmp.size; - outb = outpkt->data; - outl = outpkt->size; - - if (iconv(cd, &inb, &inl, &outb, &outl) == (size_t)-1 || - iconv(cd, NULL, NULL, &outb, &outl) == (size_t)-1 || - outl >= outpkt->size || inl != 0) { - av_log(avctx, AV_LOG_ERROR, "Unable to recode subtitle event \"%s\" " - "from %s to UTF-8\n", inpkt->data, avctx->sub_charenc); - av_free_packet(&tmp); - ret = AVERROR(errno); - goto end; - } - outpkt->size -= outl; - outpkt->data[outpkt->size - 1] = '\0'; - -end: - if (cd != (iconv_t)-1) - iconv_close(cd); - return ret; -#else - av_assert0(!"requesting subtitles recoding without iconv"); -#endif -} - -int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, - int *got_sub_ptr, - AVPacket *avpkt) -{ - int ret = 0; - - if (avctx->codec->type != AVMEDIA_TYPE_SUBTITLE) { - av_log(avctx, AV_LOG_ERROR, "Invalid media type for subtitles\n"); - return AVERROR(EINVAL); - } - - *got_sub_ptr = 0; - avcodec_get_subtitle_defaults(sub); - - if (avpkt->size) { - AVPacket pkt_recoded; - AVPacket tmp = *avpkt; - int did_split = av_packet_split_side_data(&tmp); - //apply_param_change(avctx, &tmp); - - pkt_recoded = tmp; - ret = recode_subtitle(avctx, &pkt_recoded, &tmp); - if (ret < 0) { - *got_sub_ptr = 0; - } else { - avctx->pkt = &pkt_recoded; - - if (avctx->pkt_timebase.den && avpkt->pts != AV_NOPTS_VALUE) - sub->pts = av_rescale_q(avpkt->pts, - avctx->pkt_timebase, AV_TIME_BASE_Q); - ret = avctx->codec->decode(avctx, sub, got_sub_ptr, &pkt_recoded); - av_assert1((ret >= 0) >= !!*got_sub_ptr && - !!*got_sub_ptr >= !!sub->num_rects); - if (tmp.data != pkt_recoded.data) { // did we recode? - /* prevent from destroying side data from original packet */ - pkt_recoded.side_data = NULL; - pkt_recoded.side_data_elems = 0; - - av_free_packet(&pkt_recoded); - } - sub->format = !(avctx->codec_descriptor->props & AV_CODEC_PROP_BITMAP_SUB); - avctx->pkt = NULL; - } - - if (did_split) { - ff_packet_free_side_data(&tmp); - if(ret == tmp.size) - ret = avpkt->size; - } - - if (*got_sub_ptr) - avctx->frame_number++; - } - - return ret; -} - -void avsubtitle_free(AVSubtitle *sub) -{ - int i; - - for (i = 0; i < sub->num_rects; i++) { - av_freep(&sub->rects[i]->pict.data[0]); - av_freep(&sub->rects[i]->pict.data[1]); - av_freep(&sub->rects[i]->pict.data[2]); - av_freep(&sub->rects[i]->pict.data[3]); - av_freep(&sub->rects[i]->text); - av_freep(&sub->rects[i]->ass); - av_freep(&sub->rects[i]); - } - - av_freep(&sub->rects); - - memset(sub, 0, sizeof(AVSubtitle)); -} - -av_cold int ff_codec_close_recursive(AVCodecContext *avctx) -{ - int ret = 0; - - ff_unlock_avcodec(); - - ret = avcodec_close(avctx); - - ff_lock_avcodec(NULL); - return ret; -} - -av_cold int avcodec_close(AVCodecContext *avctx) -{ - int ret = ff_lock_avcodec(avctx); - if (ret < 0) - return ret; - - if (avcodec_is_open(avctx)) { - FramePool *pool = avctx->internal->pool; - int i; - if (CONFIG_FRAME_THREAD_ENCODER && - avctx->internal->frame_thread_encoder && avctx->thread_count > 1) { - ff_unlock_avcodec(); - ff_frame_thread_encoder_free(avctx); - ff_lock_avcodec(avctx); - } - if (HAVE_THREADS && avctx->thread_opaque) - ff_thread_free(avctx); - if (avctx->codec && avctx->codec->close) - avctx->codec->close(avctx); - avctx->coded_frame = NULL; - avctx->internal->byte_buffer_size = 0; - av_freep(&avctx->internal->byte_buffer); - if (!avctx->refcounted_frames) - av_frame_unref(&avctx->internal->to_free); - for (i = 0; i < FF_ARRAY_ELEMS(pool->pools); i++) - av_buffer_pool_uninit(&pool->pools[i]); - av_freep(&avctx->internal->pool); - av_freep(&avctx->internal); - } - - if (avctx->priv_data && avctx->codec && avctx->codec->priv_class) - av_opt_free(avctx->priv_data); - av_opt_free(avctx); - av_freep(&avctx->priv_data); - if (av_codec_is_encoder(avctx->codec)) - av_freep(&avctx->extradata); - avctx->codec = NULL; - avctx->active_thread_type = 0; - - ff_unlock_avcodec(); - return 0; -} - -static enum AVCodecID remap_deprecated_codec_id(enum AVCodecID id) -{ - switch(id){ - //This is for future deprecatec codec ids, its empty since - //last major bump but will fill up again over time, please don't remove it -// case AV_CODEC_ID_UTVIDEO_DEPRECATED: return AV_CODEC_ID_UTVIDEO; - case AV_CODEC_ID_OPUS_DEPRECATED: return AV_CODEC_ID_OPUS; - case AV_CODEC_ID_TAK_DEPRECATED : return AV_CODEC_ID_TAK; - default : return id; - } -} - -static AVCodec *find_encdec(enum AVCodecID id, int encoder) -{ - AVCodec *p, *experimental = NULL; - p = first_avcodec; - id= remap_deprecated_codec_id(id); - while (p) { - if ((encoder ? av_codec_is_encoder(p) : av_codec_is_decoder(p)) && - p->id == id) { - if (p->capabilities & CODEC_CAP_EXPERIMENTAL && !experimental) { - experimental = p; - } else - return p; - } - p = p->next; - } - return experimental; -} - -AVCodec *avcodec_find_encoder(enum AVCodecID id) -{ - return find_encdec(id, 1); -} - -AVCodec *avcodec_find_encoder_by_name(const char *name) -{ - AVCodec *p; - if (!name) - return NULL; - p = first_avcodec; - while (p) { - if (av_codec_is_encoder(p) && strcmp(name, p->name) == 0) - return p; - p = p->next; - } - return NULL; -} - -AVCodec *avcodec_find_decoder(enum AVCodecID id) -{ - return find_encdec(id, 0); -} - -AVCodec *avcodec_find_decoder_by_name(const char *name) -{ - AVCodec *p; - if (!name) - return NULL; - p = first_avcodec; - while (p) { - if (av_codec_is_decoder(p) && strcmp(name, p->name) == 0) - return p; - p = p->next; - } - return NULL; -} - -const char *avcodec_get_name(enum AVCodecID id) -{ - const AVCodecDescriptor *cd; - AVCodec *codec; - - if (id == AV_CODEC_ID_NONE) - return "none"; - cd = avcodec_descriptor_get(id); - if (cd) - return cd->name; - av_log(NULL, AV_LOG_WARNING, "Codec 0x%x is not in the full list.\n", id); - codec = avcodec_find_decoder(id); - if (codec) - return codec->name; - codec = avcodec_find_encoder(id); - if (codec) - return codec->name; - return "unknown_codec"; -} - -size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag) -{ - int i, len, ret = 0; - -#define TAG_PRINT(x) \ - (((x) >= '0' && (x) <= '9') || \ - ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z') || \ - ((x) == '.' || (x) == ' ' || (x) == '-' || (x) == '_')) - - for (i = 0; i < 4; i++) { - len = snprintf(buf, buf_size, - TAG_PRINT(codec_tag & 0xFF) ? "%c" : "[%d]", codec_tag & 0xFF); - buf += len; - buf_size = buf_size > len ? buf_size - len : 0; - ret += len; - codec_tag >>= 8; - } - return ret; -} - -void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode) -{ - const char *codec_type; - const char *codec_name; - const char *profile = NULL; - const AVCodec *p; - int bitrate; - AVRational display_aspect_ratio; - - if (!buf || buf_size <= 0) - return; - codec_type = av_get_media_type_string(enc->codec_type); - codec_name = avcodec_get_name(enc->codec_id); - if (enc->profile != FF_PROFILE_UNKNOWN) { - if (enc->codec) - p = enc->codec; - else - p = encode ? avcodec_find_encoder(enc->codec_id) : - avcodec_find_decoder(enc->codec_id); - if (p) - profile = av_get_profile_name(p, enc->profile); - } - - snprintf(buf, buf_size, "%s: %s%s", codec_type ? codec_type : "unknown", - codec_name, enc->mb_decision ? " (hq)" : ""); - buf[0] ^= 'a' ^ 'A'; /* first letter in uppercase */ - if (profile) - snprintf(buf + strlen(buf), buf_size - strlen(buf), " (%s)", profile); - if (enc->codec_tag) { - char tag_buf[32]; - av_get_codec_tag_string(tag_buf, sizeof(tag_buf), enc->codec_tag); - snprintf(buf + strlen(buf), buf_size - strlen(buf), - " (%s / 0x%04X)", tag_buf, enc->codec_tag); - } - - switch (enc->codec_type) { - case AVMEDIA_TYPE_VIDEO: - if (enc->pix_fmt != AV_PIX_FMT_NONE) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %s", - av_get_pix_fmt_name(enc->pix_fmt)); - if (enc->bits_per_raw_sample && - enc->bits_per_raw_sample <= av_pix_fmt_desc_get(enc->pix_fmt)->comp[0].depth_minus1) - snprintf(buf + strlen(buf), buf_size - strlen(buf), - " (%d bpc)", enc->bits_per_raw_sample); - } - if (enc->width) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %dx%d", - enc->width, enc->height); - if (enc->sample_aspect_ratio.num) { - av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den, - enc->width * enc->sample_aspect_ratio.num, - enc->height * enc->sample_aspect_ratio.den, - 1024 * 1024); - snprintf(buf + strlen(buf), buf_size - strlen(buf), - " [SAR %d:%d DAR %d:%d]", - enc->sample_aspect_ratio.num, enc->sample_aspect_ratio.den, - display_aspect_ratio.num, display_aspect_ratio.den); - } - if (av_log_get_level() >= AV_LOG_DEBUG) { - int g = av_gcd(enc->time_base.num, enc->time_base.den); - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %d/%d", - enc->time_base.num / g, enc->time_base.den / g); - } - } - if (encode) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", q=%d-%d", enc->qmin, enc->qmax); - } - break; - case AVMEDIA_TYPE_AUDIO: - if (enc->sample_rate) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %d Hz", enc->sample_rate); - } - av_strlcat(buf, ", ", buf_size); - av_get_channel_layout_string(buf + strlen(buf), buf_size - strlen(buf), enc->channels, enc->channel_layout); - if (enc->sample_fmt != AV_SAMPLE_FMT_NONE) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %s", av_get_sample_fmt_name(enc->sample_fmt)); - } - break; - case AVMEDIA_TYPE_DATA: - if (av_log_get_level() >= AV_LOG_DEBUG) { - int g = av_gcd(enc->time_base.num, enc->time_base.den); - if (g) - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %d/%d", - enc->time_base.num / g, enc->time_base.den / g); - } - break; - default: - return; - } - if (encode) { - if (enc->flags & CODEC_FLAG_PASS1) - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", pass 1"); - if (enc->flags & CODEC_FLAG_PASS2) - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", pass 2"); - } - bitrate = get_bit_rate(enc); - if (bitrate != 0) { - snprintf(buf + strlen(buf), buf_size - strlen(buf), - ", %d kb/s", bitrate / 1000); - } -} - -const char *av_get_profile_name(const AVCodec *codec, int profile) -{ - const AVProfile *p; - if (profile == FF_PROFILE_UNKNOWN || !codec->profiles) - return NULL; - - for (p = codec->profiles; p->profile != FF_PROFILE_UNKNOWN; p++) - if (p->profile == profile) - return p->name; - - return NULL; -} - -unsigned avcodec_version(void) -{ -// av_assert0(AV_CODEC_ID_V410==164); - av_assert0(AV_CODEC_ID_PCM_S8_PLANAR==65563); - av_assert0(AV_CODEC_ID_ADPCM_G722==69660); -// av_assert0(AV_CODEC_ID_BMV_AUDIO==86071); - av_assert0(AV_CODEC_ID_SRT==94216); - av_assert0(LIBAVCODEC_VERSION_MICRO >= 100); - - av_assert0(CODEC_ID_CLLC == AV_CODEC_ID_CLLC); - av_assert0(CODEC_ID_PCM_S8_PLANAR == AV_CODEC_ID_PCM_S8_PLANAR); - av_assert0(CODEC_ID_ADPCM_IMA_APC == AV_CODEC_ID_ADPCM_IMA_APC); - av_assert0(CODEC_ID_ILBC == AV_CODEC_ID_ILBC); - av_assert0(CODEC_ID_SRT == AV_CODEC_ID_SRT); - return LIBAVCODEC_VERSION_INT; -} - -const char *avcodec_configuration(void) -{ - return FFMPEG_CONFIGURATION; -} - -const char *avcodec_license(void) -{ -#define LICENSE_PREFIX "libavcodec license: " - return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1; -} - -void avcodec_flush_buffers(AVCodecContext *avctx) -{ - if (HAVE_THREADS && avctx->active_thread_type & FF_THREAD_FRAME) - ff_thread_flush(avctx); - else if (avctx->codec->flush) - avctx->codec->flush(avctx); - - avctx->pts_correction_last_pts = - avctx->pts_correction_last_dts = INT64_MIN; -} - -int av_get_exact_bits_per_sample(enum AVCodecID codec_id) -{ - switch (codec_id) { - case AV_CODEC_ID_8SVX_EXP: - case AV_CODEC_ID_8SVX_FIB: - case AV_CODEC_ID_ADPCM_CT: - case AV_CODEC_ID_ADPCM_IMA_APC: - case AV_CODEC_ID_ADPCM_IMA_EA_SEAD: - case AV_CODEC_ID_ADPCM_IMA_OKI: - case AV_CODEC_ID_ADPCM_IMA_WS: - case AV_CODEC_ID_ADPCM_G722: - case AV_CODEC_ID_ADPCM_YAMAHA: - return 4; - case AV_CODEC_ID_PCM_ALAW: - case AV_CODEC_ID_PCM_MULAW: - case AV_CODEC_ID_PCM_S8: - case AV_CODEC_ID_PCM_S8_PLANAR: - case AV_CODEC_ID_PCM_U8: - case AV_CODEC_ID_PCM_ZORK: - return 8; - case AV_CODEC_ID_PCM_S16BE: - case AV_CODEC_ID_PCM_S16BE_PLANAR: - case AV_CODEC_ID_PCM_S16LE: - case AV_CODEC_ID_PCM_S16LE_PLANAR: - case AV_CODEC_ID_PCM_U16BE: - case AV_CODEC_ID_PCM_U16LE: - return 16; - case AV_CODEC_ID_PCM_S24DAUD: - case AV_CODEC_ID_PCM_S24BE: - case AV_CODEC_ID_PCM_S24LE: - case AV_CODEC_ID_PCM_S24LE_PLANAR: - case AV_CODEC_ID_PCM_U24BE: - case AV_CODEC_ID_PCM_U24LE: - return 24; - case AV_CODEC_ID_PCM_S32BE: - case AV_CODEC_ID_PCM_S32LE: - case AV_CODEC_ID_PCM_S32LE_PLANAR: - case AV_CODEC_ID_PCM_U32BE: - case AV_CODEC_ID_PCM_U32LE: - case AV_CODEC_ID_PCM_F32BE: - case AV_CODEC_ID_PCM_F32LE: - return 32; - case AV_CODEC_ID_PCM_F64BE: - case AV_CODEC_ID_PCM_F64LE: - return 64; - default: - return 0; - } -} - -enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be) -{ - static const enum AVCodecID map[AV_SAMPLE_FMT_NB][2] = { - [AV_SAMPLE_FMT_U8 ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, - [AV_SAMPLE_FMT_S16 ] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, - [AV_SAMPLE_FMT_S32 ] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, - [AV_SAMPLE_FMT_FLT ] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, - [AV_SAMPLE_FMT_DBL ] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, - [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8, AV_CODEC_ID_PCM_U8 }, - [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE }, - [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE }, - [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE }, - [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE }, - }; - if (fmt < 0 || fmt >= AV_SAMPLE_FMT_NB) - return AV_CODEC_ID_NONE; - if (be < 0 || be > 1) - be = AV_NE(1, 0); - return map[fmt][be]; -} - -int av_get_bits_per_sample(enum AVCodecID codec_id) -{ - switch (codec_id) { - case AV_CODEC_ID_ADPCM_SBPRO_2: - return 2; - case AV_CODEC_ID_ADPCM_SBPRO_3: - return 3; - case AV_CODEC_ID_ADPCM_SBPRO_4: - case AV_CODEC_ID_ADPCM_IMA_WAV: - case AV_CODEC_ID_ADPCM_IMA_QT: - case AV_CODEC_ID_ADPCM_SWF: - case AV_CODEC_ID_ADPCM_MS: - return 4; - default: - return av_get_exact_bits_per_sample(codec_id); - } -} - -int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes) -{ - int id, sr, ch, ba, tag, bps; - - id = avctx->codec_id; - sr = avctx->sample_rate; - ch = avctx->channels; - ba = avctx->block_align; - tag = avctx->codec_tag; - bps = av_get_exact_bits_per_sample(avctx->codec_id); - - /* codecs with an exact constant bits per sample */ - if (bps > 0 && ch > 0 && frame_bytes > 0 && ch < 32768 && bps < 32768) - return (frame_bytes * 8LL) / (bps * ch); - bps = avctx->bits_per_coded_sample; - - /* codecs with a fixed packet duration */ - switch (id) { - case AV_CODEC_ID_ADPCM_ADX: return 32; - case AV_CODEC_ID_ADPCM_IMA_QT: return 64; - case AV_CODEC_ID_ADPCM_EA_XAS: return 128; - case AV_CODEC_ID_AMR_NB: - case AV_CODEC_ID_EVRC: - case AV_CODEC_ID_GSM: - case AV_CODEC_ID_QCELP: - case AV_CODEC_ID_RA_288: return 160; - case AV_CODEC_ID_AMR_WB: - case AV_CODEC_ID_GSM_MS: return 320; - case AV_CODEC_ID_MP1: return 384; - case AV_CODEC_ID_ATRAC1: return 512; - case AV_CODEC_ID_ATRAC3: return 1024; - case AV_CODEC_ID_MP2: - case AV_CODEC_ID_MUSEPACK7: return 1152; - case AV_CODEC_ID_AC3: return 1536; - } - - if (sr > 0) { - /* calc from sample rate */ - if (id == AV_CODEC_ID_TTA) - return 256 * sr / 245; - - if (ch > 0) { - /* calc from sample rate and channels */ - if (id == AV_CODEC_ID_BINKAUDIO_DCT) - return (480 << (sr / 22050)) / ch; - } - } - - if (ba > 0) { - /* calc from block_align */ - if (id == AV_CODEC_ID_SIPR) { - switch (ba) { - case 20: return 160; - case 19: return 144; - case 29: return 288; - case 37: return 480; - } - } else if (id == AV_CODEC_ID_ILBC) { - switch (ba) { - case 38: return 160; - case 50: return 240; - } - } - } - - if (frame_bytes > 0) { - /* calc from frame_bytes only */ - if (id == AV_CODEC_ID_TRUESPEECH) - return 240 * (frame_bytes / 32); - if (id == AV_CODEC_ID_NELLYMOSER) - return 256 * (frame_bytes / 64); - if (id == AV_CODEC_ID_RA_144) - return 160 * (frame_bytes / 20); - if (id == AV_CODEC_ID_G723_1) - return 240 * (frame_bytes / 24); - - if (bps > 0) { - /* calc from frame_bytes and bits_per_coded_sample */ - if (id == AV_CODEC_ID_ADPCM_G726) - return frame_bytes * 8 / bps; - } - - if (ch > 0) { - /* calc from frame_bytes and channels */ - switch (id) { - case AV_CODEC_ID_ADPCM_AFC: - return frame_bytes / (9 * ch) * 16; - case AV_CODEC_ID_ADPCM_4XM: - case AV_CODEC_ID_ADPCM_IMA_ISS: - return (frame_bytes - 4 * ch) * 2 / ch; - case AV_CODEC_ID_ADPCM_IMA_SMJPEG: - return (frame_bytes - 4) * 2 / ch; - case AV_CODEC_ID_ADPCM_IMA_AMV: - return (frame_bytes - 8) * 2 / ch; - case AV_CODEC_ID_ADPCM_XA: - return (frame_bytes / 128) * 224 / ch; - case AV_CODEC_ID_INTERPLAY_DPCM: - return (frame_bytes - 6 - ch) / ch; - case AV_CODEC_ID_ROQ_DPCM: - return (frame_bytes - 8) / ch; - case AV_CODEC_ID_XAN_DPCM: - return (frame_bytes - 2 * ch) / ch; - case AV_CODEC_ID_MACE3: - return 3 * frame_bytes / ch; - case AV_CODEC_ID_MACE6: - return 6 * frame_bytes / ch; - case AV_CODEC_ID_PCM_LXF: - return 2 * (frame_bytes / (5 * ch)); - case AV_CODEC_ID_IAC: - case AV_CODEC_ID_IMC: - return 4 * frame_bytes / ch; - } - - if (tag) { - /* calc from frame_bytes, channels, and codec_tag */ - if (id == AV_CODEC_ID_SOL_DPCM) { - if (tag == 3) - return frame_bytes / ch; - else - return frame_bytes * 2 / ch; - } - } - - if (ba > 0) { - /* calc from frame_bytes, channels, and block_align */ - int blocks = frame_bytes / ba; - switch (avctx->codec_id) { - case AV_CODEC_ID_ADPCM_IMA_WAV: - return blocks * (1 + (ba - 4 * ch) / (4 * ch) * 8); - case AV_CODEC_ID_ADPCM_IMA_DK3: - return blocks * (((ba - 16) * 2 / 3 * 4) / ch); - case AV_CODEC_ID_ADPCM_IMA_DK4: - return blocks * (1 + (ba - 4 * ch) * 2 / ch); - case AV_CODEC_ID_ADPCM_MS: - return blocks * (2 + (ba - 7 * ch) * 2 / ch); - } - } - - if (bps > 0) { - /* calc from frame_bytes, channels, and bits_per_coded_sample */ - switch (avctx->codec_id) { - case AV_CODEC_ID_PCM_DVD: - if(bps<4) - return 0; - return 2 * (frame_bytes / ((bps * 2 / 8) * ch)); - case AV_CODEC_ID_PCM_BLURAY: - if(bps<4) - return 0; - return frame_bytes / ((FFALIGN(ch, 2) * bps) / 8); - case AV_CODEC_ID_S302M: - return 2 * (frame_bytes / ((bps + 4) / 4)) / ch; - } - } - } - } - - return 0; -} - -#if !HAVE_THREADS -int ff_thread_init(AVCodecContext *s) -{ - return -1; -} - -#endif - -unsigned int av_xiphlacing(unsigned char *s, unsigned int v) -{ - unsigned int n = 0; - - while (v >= 0xff) { - *s++ = 0xff; - v -= 0xff; - n++; - } - *s = v; - n++; - return n; -} - -int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b) -{ - int i; - for (i = 0; i < size && !(tab[i][0] == a && tab[i][1] == b); i++) ; - return i; -} - -#if FF_API_MISSING_SAMPLE -void av_log_missing_feature(void *avc, const char *feature, int want_sample) -{ - av_log(avc, AV_LOG_WARNING, "%s is not implemented. Update your FFmpeg " - "version to the newest one from Git. If the problem still " - "occurs, it means that your file has a feature which has not " - "been implemented.\n", feature); - if(want_sample) - av_log_ask_for_sample(avc, NULL); -} - -void av_log_ask_for_sample(void *avc, const char *msg, ...) -{ - va_list argument_list; - - va_start(argument_list, msg); - - if (msg) - av_vlog(avc, AV_LOG_WARNING, msg, argument_list); - av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample " - "of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ " - "and contact the ffmpeg-devel mailing list.\n"); - - va_end(argument_list); -} -#endif /* FF_API_MISSING_SAMPLE */ - -static AVHWAccel *first_hwaccel = NULL; - -void av_register_hwaccel(AVHWAccel *hwaccel) -{ - AVHWAccel **p = &first_hwaccel; - while (*p) - p = &(*p)->next; - *p = hwaccel; - hwaccel->next = NULL; -} - -AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel) -{ - return hwaccel ? hwaccel->next : first_hwaccel; -} - -AVHWAccel *ff_find_hwaccel(enum AVCodecID codec_id, enum AVPixelFormat pix_fmt) -{ - AVHWAccel *hwaccel = NULL; - - while ((hwaccel = av_hwaccel_next(hwaccel))) - if (hwaccel->id == codec_id - && hwaccel->pix_fmt == pix_fmt) - return hwaccel; - return NULL; -} - -int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op)) -{ - if (ff_lockmgr_cb) { - if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_DESTROY)) - return -1; - if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_DESTROY)) - return -1; - } - - ff_lockmgr_cb = cb; - - if (ff_lockmgr_cb) { - if (ff_lockmgr_cb(&codec_mutex, AV_LOCK_CREATE)) - return -1; - if (ff_lockmgr_cb(&avformat_mutex, AV_LOCK_CREATE)) - return -1; - } - return 0; -} - -int ff_lock_avcodec(AVCodecContext *log_ctx) -{ - if (ff_lockmgr_cb) { - if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_OBTAIN)) - return -1; - } - entangled_thread_counter++; - if (entangled_thread_counter != 1) { - av_log(log_ctx, AV_LOG_ERROR, "Insufficient thread locking around avcodec_open/close()\n"); - ff_avcodec_locked = 1; - ff_unlock_avcodec(); - return AVERROR(EINVAL); - } - av_assert0(!ff_avcodec_locked); - ff_avcodec_locked = 1; - return 0; -} - -int ff_unlock_avcodec(void) -{ - av_assert0(ff_avcodec_locked); - ff_avcodec_locked = 0; - entangled_thread_counter--; - if (ff_lockmgr_cb) { - if ((*ff_lockmgr_cb)(&codec_mutex, AV_LOCK_RELEASE)) - return -1; - } - return 0; -} - -int avpriv_lock_avformat(void) -{ - if (ff_lockmgr_cb) { - if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_OBTAIN)) - return -1; - } - return 0; -} - -int avpriv_unlock_avformat(void) -{ - if (ff_lockmgr_cb) { - if ((*ff_lockmgr_cb)(&avformat_mutex, AV_LOCK_RELEASE)) - return -1; - } - return 0; -} - -unsigned int avpriv_toupper4(unsigned int x) -{ - return av_toupper(x & 0xFF) + - (av_toupper((x >> 8) & 0xFF) << 8) + - (av_toupper((x >> 16) & 0xFF) << 16) + - (av_toupper((x >> 24) & 0xFF) << 24); -} - -int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src) -{ - int ret; - - dst->owner = src->owner; - - ret = av_frame_ref(dst->f, src->f); - if (ret < 0) - return ret; - - if (src->progress && - !(dst->progress = av_buffer_ref(src->progress))) { - ff_thread_release_buffer(dst->owner, dst); - return AVERROR(ENOMEM); - } - - return 0; -} - -#if !HAVE_THREADS - -int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags) -{ - f->owner = avctx; - return ff_get_buffer(avctx, f->f, flags); -} - -void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f) -{ - av_frame_unref(f->f); -} - -void ff_thread_finish_setup(AVCodecContext *avctx) -{ -} - -void ff_thread_report_progress(ThreadFrame *f, int progress, int field) -{ -} - -void ff_thread_await_progress(ThreadFrame *f, int progress, int field) -{ -} - -int ff_thread_can_start_frame(AVCodecContext *avctx) -{ - return 1; -} - -#endif - -enum AVMediaType avcodec_get_type(enum AVCodecID codec_id) -{ - AVCodec *c= avcodec_find_decoder(codec_id); - if(!c) - c= avcodec_find_encoder(codec_id); - if(c) - return c->type; - - if (codec_id <= AV_CODEC_ID_NONE) - return AVMEDIA_TYPE_UNKNOWN; - else if (codec_id < AV_CODEC_ID_FIRST_AUDIO) - return AVMEDIA_TYPE_VIDEO; - else if (codec_id < AV_CODEC_ID_FIRST_SUBTITLE) - return AVMEDIA_TYPE_AUDIO; - else if (codec_id < AV_CODEC_ID_FIRST_UNKNOWN) - return AVMEDIA_TYPE_SUBTITLE; - - return AVMEDIA_TYPE_UNKNOWN; -} - -int avcodec_is_open(AVCodecContext *s) -{ - return !!s->internal; -} - -int avpriv_bprint_to_extradata(AVCodecContext *avctx, struct AVBPrint *buf) -{ - int ret; - char *str; - - ret = av_bprint_finalize(buf, &str); - if (ret < 0) - return ret; - avctx->extradata = str; - /* Note: the string is NUL terminated (so extradata can be read as a - * string), but the ending character is not accounted in the size (in - * binary formats you are likely not supposed to mux that character). When - * extradata is copied, it is also padded with FF_INPUT_BUFFER_PADDING_SIZE - * zeros. */ - avctx->extradata_size = buf->len; - return 0; -} |