From 22e28216336da876e1fd17f380ce42eaf1446769 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Mon, 17 Feb 2014 13:36:38 +0000 Subject: chasing indexing error --- ffmpeg/libavformat/avisynth.c | 683 ------------------------------------------ 1 file changed, 683 deletions(-) delete mode 100644 ffmpeg/libavformat/avisynth.c (limited to 'ffmpeg/libavformat/avisynth.c') diff --git a/ffmpeg/libavformat/avisynth.c b/ffmpeg/libavformat/avisynth.c deleted file mode 100644 index 2f438d9..0000000 --- a/ffmpeg/libavformat/avisynth.c +++ /dev/null @@ -1,683 +0,0 @@ -/* - * AviSynth/AvxSynth support - * Copyright (c) 2012 AvxSynth Team. - * - * 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 - */ - -#include "libavutil/internal.h" -#include "libavcodec/internal.h" -#include "avformat.h" -#include "internal.h" - -/* Enable function pointer definitions for runtime loading. */ -#define AVSC_NO_DECLSPEC - -/* Platform-specific directives for AviSynth vs AvxSynth. */ -#ifdef _WIN32 - #include - #undef EXTERN_C - #include "compat/avisynth/avisynth_c.h" - #include "compat/avisynth/avisynth_c_25.h" - #define AVISYNTH_LIB "avisynth" - #define USING_AVISYNTH -#else - #include - #include "compat/avisynth/avxsynth_c.h" - #if defined (__APPLE__) - #define AVISYNTH_LIB "libavxsynth.dylib" - #else - #define AVISYNTH_LIB "libavxsynth.so" - #endif - - #define LoadLibrary(x) dlopen(x, RTLD_NOW | RTLD_GLOBAL) - #define GetProcAddress dlsym - #define FreeLibrary dlclose -#endif - -typedef struct AviSynthLibrary { - void *library; -#define AVSC_DECLARE_FUNC(name) name ## _func name - AVSC_DECLARE_FUNC(avs_bit_blt); - AVSC_DECLARE_FUNC(avs_clip_get_error); - AVSC_DECLARE_FUNC(avs_create_script_environment); - AVSC_DECLARE_FUNC(avs_delete_script_environment); - AVSC_DECLARE_FUNC(avs_get_audio); - AVSC_DECLARE_FUNC(avs_get_error); - AVSC_DECLARE_FUNC(avs_get_frame); - AVSC_DECLARE_FUNC(avs_get_version); - AVSC_DECLARE_FUNC(avs_get_video_info); - AVSC_DECLARE_FUNC(avs_invoke); - AVSC_DECLARE_FUNC(avs_release_clip); - AVSC_DECLARE_FUNC(avs_release_value); - AVSC_DECLARE_FUNC(avs_release_video_frame); - AVSC_DECLARE_FUNC(avs_take_clip); -#undef AVSC_DECLARE_FUNC -} AviSynthLibrary; - -typedef struct AviSynthContext { - AVS_ScriptEnvironment *env; - AVS_Clip *clip; - const AVS_VideoInfo *vi; - - /* avisynth_read_packet_video() iterates over this. */ - int n_planes; - const int *planes; - - int curr_stream; - int curr_frame; - int64_t curr_sample; - - int error; - - /* Linked list pointers. */ - struct AviSynthContext *next; -} AviSynthContext; - -static const int avs_planes_packed[1] = { 0 }; -static const int avs_planes_grey[1] = { AVS_PLANAR_Y }; -static const int avs_planes_yuv[3] = { AVS_PLANAR_Y, AVS_PLANAR_U, - AVS_PLANAR_V }; - -/* A conflict between C++ global objects, atexit, and dynamic loading requires - * us to register our own atexit handler to prevent double freeing. */ -static AviSynthLibrary avs_library; -static int avs_atexit_called = 0; - -/* Linked list of AviSynthContexts. An atexit handler destroys this list. */ -static AviSynthContext *avs_ctx_list = NULL; - -static av_cold void avisynth_atexit_handler(void); - -static av_cold int avisynth_load_library(void) -{ - avs_library.library = LoadLibrary(AVISYNTH_LIB); - if (!avs_library.library) - return AVERROR_UNKNOWN; - -#define LOAD_AVS_FUNC(name, continue_on_fail) \ - avs_library.name = \ - (void *)GetProcAddress(avs_library.library, #name); \ - if (!continue_on_fail && !avs_library.name) \ - goto fail; - - LOAD_AVS_FUNC(avs_bit_blt, 0); - LOAD_AVS_FUNC(avs_clip_get_error, 0); - LOAD_AVS_FUNC(avs_create_script_environment, 0); - LOAD_AVS_FUNC(avs_delete_script_environment, 0); - LOAD_AVS_FUNC(avs_get_audio, 0); - LOAD_AVS_FUNC(avs_get_error, 1); // New to AviSynth 2.6 - LOAD_AVS_FUNC(avs_get_frame, 0); - LOAD_AVS_FUNC(avs_get_version, 0); - LOAD_AVS_FUNC(avs_get_video_info, 0); - LOAD_AVS_FUNC(avs_invoke, 0); - LOAD_AVS_FUNC(avs_release_clip, 0); - LOAD_AVS_FUNC(avs_release_value, 0); - LOAD_AVS_FUNC(avs_release_video_frame, 0); - LOAD_AVS_FUNC(avs_take_clip, 0); -#undef LOAD_AVS_FUNC - - atexit(avisynth_atexit_handler); - return 0; - -fail: - FreeLibrary(avs_library.library); - return AVERROR_UNKNOWN; -} - -/* Note that avisynth_context_create and avisynth_context_destroy - * do not allocate or free the actual context! That is taken care of - * by libavformat. */ -static av_cold int avisynth_context_create(AVFormatContext *s) -{ - AviSynthContext *avs = s->priv_data; - int ret; - - if (!avs_library.library) - if (ret = avisynth_load_library()) - return ret; - - avs->env = avs_library.avs_create_script_environment(3); - if (avs_library.avs_get_error) { - const char *error = avs_library.avs_get_error(avs->env); - if (error) { - av_log(s, AV_LOG_ERROR, "%s\n", error); - return AVERROR_UNKNOWN; - } - } - - if (!avs_ctx_list) { - avs_ctx_list = avs; - } else { - avs->next = avs_ctx_list; - avs_ctx_list = avs; - } - - return 0; -} - -static av_cold void avisynth_context_destroy(AviSynthContext *avs) -{ - if (avs_atexit_called) - return; - - if (avs == avs_ctx_list) { - avs_ctx_list = avs->next; - } else { - AviSynthContext *prev = avs_ctx_list; - while (prev->next != avs) - prev = prev->next; - prev->next = avs->next; - } - - if (avs->clip) { - avs_library.avs_release_clip(avs->clip); - avs->clip = NULL; - } - if (avs->env) { - avs_library.avs_delete_script_environment(avs->env); - avs->env = NULL; - } -} - -static av_cold void avisynth_atexit_handler(void) -{ - AviSynthContext *avs = avs_ctx_list; - - while (avs) { - AviSynthContext *next = avs->next; - avisynth_context_destroy(avs); - avs = next; - } - FreeLibrary(avs_library.library); - - avs_atexit_called = 1; -} - -/* Create AVStream from audio and video data. */ -static int avisynth_create_stream_video(AVFormatContext *s, AVStream *st) -{ - AviSynthContext *avs = s->priv_data; - int planar = 0; // 0: packed, 1: YUV, 2: Y8 - - st->codec->codec_type = AVMEDIA_TYPE_VIDEO; - st->codec->codec_id = AV_CODEC_ID_RAWVIDEO; - st->codec->width = avs->vi->width; - st->codec->height = avs->vi->height; - - st->time_base = (AVRational) { avs->vi->fps_denominator, - avs->vi->fps_numerator }; - st->avg_frame_rate = (AVRational) { avs->vi->fps_numerator, - avs->vi->fps_denominator }; - st->start_time = 0; - st->duration = avs->vi->num_frames; - st->nb_frames = avs->vi->num_frames; - - switch (avs->vi->pixel_type) { -#ifdef USING_AVISYNTH - case AVS_CS_YV24: - st->codec->pix_fmt = AV_PIX_FMT_YUV444P; - planar = 1; - break; - case AVS_CS_YV16: - st->codec->pix_fmt = AV_PIX_FMT_YUV422P; - planar = 1; - break; - case AVS_CS_YV411: - st->codec->pix_fmt = AV_PIX_FMT_YUV411P; - planar = 1; - break; - case AVS_CS_Y8: - st->codec->pix_fmt = AV_PIX_FMT_GRAY8; - planar = 2; - break; -#endif - case AVS_CS_BGR24: - st->codec->pix_fmt = AV_PIX_FMT_BGR24; - break; - case AVS_CS_BGR32: - st->codec->pix_fmt = AV_PIX_FMT_RGB32; - break; - case AVS_CS_YUY2: - st->codec->pix_fmt = AV_PIX_FMT_YUYV422; - break; - case AVS_CS_YV12: - st->codec->pix_fmt = AV_PIX_FMT_YUV420P; - planar = 1; - break; - case AVS_CS_I420: // Is this even used anywhere? - st->codec->pix_fmt = AV_PIX_FMT_YUV420P; - planar = 1; - break; - default: - av_log(s, AV_LOG_ERROR, - "unknown AviSynth colorspace %d\n", avs->vi->pixel_type); - avs->error = 1; - return AVERROR_UNKNOWN; - } - - switch (planar) { - case 2: // Y8 - avs->n_planes = 1; - avs->planes = avs_planes_grey; - break; - case 1: // YUV - avs->n_planes = 3; - avs->planes = avs_planes_yuv; - break; - default: - avs->n_planes = 1; - avs->planes = avs_planes_packed; - } - return 0; -} - -static int avisynth_create_stream_audio(AVFormatContext *s, AVStream *st) -{ - AviSynthContext *avs = s->priv_data; - - st->codec->codec_type = AVMEDIA_TYPE_AUDIO; - st->codec->sample_rate = avs->vi->audio_samples_per_second; - st->codec->channels = avs->vi->nchannels; - st->time_base = (AVRational) { 1, - avs->vi->audio_samples_per_second }; - - switch (avs->vi->sample_type) { - case AVS_SAMPLE_INT8: - st->codec->codec_id = AV_CODEC_ID_PCM_U8; - break; - case AVS_SAMPLE_INT16: - st->codec->codec_id = AV_CODEC_ID_PCM_S16LE; - break; - case AVS_SAMPLE_INT24: - st->codec->codec_id = AV_CODEC_ID_PCM_S24LE; - break; - case AVS_SAMPLE_INT32: - st->codec->codec_id = AV_CODEC_ID_PCM_S32LE; - break; - case AVS_SAMPLE_FLOAT: - st->codec->codec_id = AV_CODEC_ID_PCM_F32LE; - break; - default: - av_log(s, AV_LOG_ERROR, - "unknown AviSynth sample type %d\n", avs->vi->sample_type); - avs->error = 1; - return AVERROR_UNKNOWN; - } - return 0; -} - -static int avisynth_create_stream(AVFormatContext *s) -{ - AviSynthContext *avs = s->priv_data; - AVStream *st; - int ret; - int id = 0; - - if (avs_has_video(avs->vi)) { - st = avformat_new_stream(s, NULL); - if (!st) - return AVERROR_UNKNOWN; - st->id = id++; - if (ret = avisynth_create_stream_video(s, st)) - return ret; - } - if (avs_has_audio(avs->vi)) { - st = avformat_new_stream(s, NULL); - if (!st) - return AVERROR_UNKNOWN; - st->id = id++; - if (ret = avisynth_create_stream_audio(s, st)) - return ret; - } - return 0; -} - -static int avisynth_open_file(AVFormatContext *s) -{ - AviSynthContext *avs = s->priv_data; - AVS_Value arg, val; - int ret; -#ifdef USING_AVISYNTH - char filename_ansi[MAX_PATH * 4]; - wchar_t filename_wc[MAX_PATH * 4]; -#endif - - if (ret = avisynth_context_create(s)) - return ret; - -#ifdef USING_AVISYNTH - /* Convert UTF-8 to ANSI code page */ - MultiByteToWideChar(CP_UTF8, 0, s->filename, -1, filename_wc, MAX_PATH * 4); - WideCharToMultiByte(CP_THREAD_ACP, 0, filename_wc, -1, filename_ansi, - MAX_PATH * 4, NULL, NULL); - arg = avs_new_value_string(filename_ansi); -#else - arg = avs_new_value_string(s->filename); -#endif - val = avs_library.avs_invoke(avs->env, "Import", arg, 0); - if (avs_is_error(val)) { - av_log(s, AV_LOG_ERROR, "%s\n", avs_as_error(val)); - ret = AVERROR_UNKNOWN; - goto fail; - } - if (!avs_is_clip(val)) { - av_log(s, AV_LOG_ERROR, "AviSynth script did not return a clip\n"); - ret = AVERROR_UNKNOWN; - goto fail; - } - - avs->clip = avs_library.avs_take_clip(val, avs->env); - avs->vi = avs_library.avs_get_video_info(avs->clip); - - /* Release the AVS_Value as it will go out of scope. */ - avs_library.avs_release_value(val); - - if (ret = avisynth_create_stream(s)) - goto fail; - - return 0; - -fail: - avisynth_context_destroy(avs); - return ret; -} - -static void avisynth_next_stream(AVFormatContext *s, AVStream **st, - AVPacket *pkt, int *discard) -{ - AviSynthContext *avs = s->priv_data; - - pkt->stream_index = avs->curr_stream++; - avs->curr_stream %= s->nb_streams; - - *st = s->streams[pkt->stream_index]; - if ((*st)->discard == AVDISCARD_ALL) - *discard = 1; - else - *discard = 0; - - return; -} - -/* Copy AviSynth clip data into an AVPacket. */ -static int avisynth_read_packet_video(AVFormatContext *s, AVPacket *pkt, - int discard) -{ - AviSynthContext *avs = s->priv_data; - AVS_VideoFrame *frame; - unsigned char *dst_p; - const unsigned char *src_p; - int n, i, plane, rowsize, planeheight, pitch, bits; - const char *error; - - if (avs->curr_frame >= avs->vi->num_frames) - return AVERROR_EOF; - - /* This must happen even if the stream is discarded to prevent desync. */ - n = avs->curr_frame++; - if (discard) - return 0; - - pkt->pts = n; - pkt->dts = n; - pkt->duration = 1; - -#ifdef USING_AVISYNTH - /* Define the bpp values for the new AviSynth 2.6 colorspaces. - * Since AvxSynth doesn't have these functions, special-case - * it in order to avoid implicit declaration errors. */ - - if (avs_is_yv24(avs->vi)) - bits = 24; - else if (avs_is_yv16(avs->vi)) - bits = 16; - else if (avs_is_yv411(avs->vi)) - bits = 12; - else if (avs_is_y8(avs->vi)) - bits = 8; - else -#endif - bits = avs_bits_per_pixel(avs->vi); - - /* Without the cast to int64_t, calculation overflows at about 9k x 9k - * resolution. */ - pkt->size = (((int64_t)avs->vi->width * - (int64_t)avs->vi->height) * bits) / 8; - if (!pkt->size) - return AVERROR_UNKNOWN; - if (av_new_packet(pkt, (int)pkt->size) < 0) { - av_free(pkt); - return AVERROR(ENOMEM); - } - - frame = avs_library.avs_get_frame(avs->clip, n); - error = avs_library.avs_clip_get_error(avs->clip); - if (error) { - av_log(s, AV_LOG_ERROR, "%s\n", error); - avs->error = 1; - av_freep(&pkt->data); - return AVERROR_UNKNOWN; - } - - dst_p = pkt->data; - for (i = 0; i < avs->n_planes; i++) { - plane = avs->planes[i]; - src_p = avs_get_read_ptr_p(frame, plane); - pitch = avs_get_pitch_p(frame, plane); - -#ifdef USING_AVISYNTH - if (avs_library.avs_get_version(avs->clip) == 3) { - rowsize = avs_get_row_size_p_25(frame, plane); - planeheight = avs_get_height_p_25(frame, plane); - } else { - rowsize = avs_get_row_size_p(frame, plane); - planeheight = avs_get_height_p(frame, plane); - } -#else - rowsize = avs_get_row_size_p(frame, plane); - planeheight = avs_get_height_p(frame, plane); -#endif - - /* Flip RGB video. */ - if (avs_is_rgb24(avs->vi) || avs_is_rgb(avs->vi)) { - src_p = src_p + (planeheight - 1) * pitch; - pitch = -pitch; - } - - avs_library.avs_bit_blt(avs->env, dst_p, rowsize, src_p, pitch, - rowsize, planeheight); - dst_p += rowsize * planeheight; - } - - avs_library.avs_release_video_frame(frame); - return 0; -} - -static int avisynth_read_packet_audio(AVFormatContext *s, AVPacket *pkt, - int discard) -{ - AviSynthContext *avs = s->priv_data; - AVRational fps, samplerate; - int samples; - int64_t n; - const char *error; - - if (avs->curr_sample >= avs->vi->num_audio_samples) - return AVERROR_EOF; - - fps.num = avs->vi->fps_numerator; - fps.den = avs->vi->fps_denominator; - samplerate.num = avs->vi->audio_samples_per_second; - samplerate.den = 1; - - if (avs_has_video(avs->vi)) { - if (avs->curr_frame < avs->vi->num_frames) - samples = av_rescale_q(avs->curr_frame, samplerate, fps) - - avs->curr_sample; - else - samples = av_rescale_q(1, samplerate, fps); - } else { - samples = 1000; - } - - /* After seeking, audio may catch up with video. */ - if (samples <= 0) { - pkt->size = 0; - pkt->data = NULL; - return 0; - } - - if (avs->curr_sample + samples > avs->vi->num_audio_samples) - samples = avs->vi->num_audio_samples - avs->curr_sample; - - /* This must happen even if the stream is discarded to prevent desync. */ - n = avs->curr_sample; - avs->curr_sample += samples; - if (discard) - return 0; - - pkt->pts = n; - pkt->dts = n; - pkt->duration = samples; - - pkt->size = avs_bytes_per_channel_sample(avs->vi) * - samples * avs->vi->nchannels; - if (!pkt->size) - return AVERROR_UNKNOWN; - pkt->data = av_malloc(pkt->size); - if (!pkt->data) - return AVERROR(ENOMEM); - - avs_library.avs_get_audio(avs->clip, pkt->data, n, samples); - error = avs_library.avs_clip_get_error(avs->clip); - if (error) { - av_log(s, AV_LOG_ERROR, "%s\n", error); - avs->error = 1; - av_freep(&pkt->data); - return AVERROR_UNKNOWN; - } - return 0; -} - -static av_cold int avisynth_read_header(AVFormatContext *s) -{ - int ret; - - // Calling library must implement a lock for thread-safe opens. - if (ret = avpriv_lock_avformat()) - return ret; - - if (ret = avisynth_open_file(s)) { - avpriv_unlock_avformat(); - return ret; - } - - avpriv_unlock_avformat(); - return 0; -} - -static int avisynth_read_packet(AVFormatContext *s, AVPacket *pkt) -{ - AviSynthContext *avs = s->priv_data; - AVStream *st; - int discard = 0; - int ret; - - if (avs->error) - return AVERROR_UNKNOWN; - - av_free_packet(pkt); - - /* If either stream reaches EOF, try to read the other one before - * giving up. */ - avisynth_next_stream(s, &st, pkt, &discard); - if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) { - ret = avisynth_read_packet_video(s, pkt, discard); - if (ret == AVERROR_EOF && avs_has_audio(avs->vi)) { - avisynth_next_stream(s, &st, pkt, &discard); - return avisynth_read_packet_audio(s, pkt, discard); - } - } else { - ret = avisynth_read_packet_audio(s, pkt, discard); - if (ret == AVERROR_EOF && avs_has_video(avs->vi)) { - avisynth_next_stream(s, &st, pkt, &discard); - return avisynth_read_packet_video(s, pkt, discard); - } - } - - return ret; -} - -static av_cold int avisynth_read_close(AVFormatContext *s) -{ - if (avpriv_lock_avformat()) - return AVERROR_UNKNOWN; - - avisynth_context_destroy(s->priv_data); - avpriv_unlock_avformat(); - return 0; -} - -static int avisynth_read_seek(AVFormatContext *s, int stream_index, - int64_t timestamp, int flags) -{ - AviSynthContext *avs = s->priv_data; - AVStream *st; - AVRational fps, samplerate; - - if (avs->error) - return AVERROR_UNKNOWN; - - fps = (AVRational) { avs->vi->fps_numerator, - avs->vi->fps_denominator }; - samplerate = (AVRational) { avs->vi->audio_samples_per_second, 1 }; - - st = s->streams[stream_index]; - if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) { - /* AviSynth frame counts are signed int. */ - if ((timestamp >= avs->vi->num_frames) || - (timestamp > INT_MAX) || - (timestamp < 0)) - return AVERROR_EOF; - avs->curr_frame = timestamp; - if (avs_has_audio(avs->vi)) - avs->curr_sample = av_rescale_q(timestamp, samplerate, fps); - } else { - if ((timestamp >= avs->vi->num_audio_samples) || (timestamp < 0)) - return AVERROR_EOF; - /* Force frame granularity for seeking. */ - if (avs_has_video(avs->vi)) { - avs->curr_frame = av_rescale_q(timestamp, fps, samplerate); - avs->curr_sample = av_rescale_q(avs->curr_frame, samplerate, fps); - } else { - avs->curr_sample = timestamp; - } - } - - return 0; -} - -AVInputFormat ff_avisynth_demuxer = { - .name = "avisynth", - .long_name = NULL_IF_CONFIG_SMALL("AviSynth script"), - .priv_data_size = sizeof(AviSynthContext), - .read_header = avisynth_read_header, - .read_packet = avisynth_read_packet, - .read_close = avisynth_read_close, - .read_seek = avisynth_read_seek, - .extensions = "avs", -}; -- cgit v1.2.3