From 734eee1af2c21976e8f57c4ca498593a305fb22e Mon Sep 17 00:00:00 2001 From: Xavier Del Campo Romero Date: Sun, 3 Jan 2021 02:06:58 +0100 Subject: Remove ffmpeg binary from project --- Music/ffmpeg/doc/examples/Makefile | 46 -- Music/ffmpeg/doc/examples/README | 23 - Music/ffmpeg/doc/examples/avio_dir_cmd.c | 180 ------ Music/ffmpeg/doc/examples/avio_reading.c | 134 ----- Music/ffmpeg/doc/examples/decoding_encoding.c | 665 --------------------- Music/ffmpeg/doc/examples/demuxing_decoding.c | 394 ------------- Music/ffmpeg/doc/examples/extract_mvs.c | 185 ------ Music/ffmpeg/doc/examples/filter_audio.c | 365 ------------ Music/ffmpeg/doc/examples/filtering_audio.c | 295 ---------- Music/ffmpeg/doc/examples/filtering_video.c | 280 --------- Music/ffmpeg/doc/examples/http_multiclient.c | 155 ----- Music/ffmpeg/doc/examples/metadata.c | 56 -- Music/ffmpeg/doc/examples/muxing.c | 673 --------------------- Music/ffmpeg/doc/examples/qsvdec.c | 487 ---------------- Music/ffmpeg/doc/examples/remuxing.c | 165 ------ Music/ffmpeg/doc/examples/resampling_audio.c | 214 ------- Music/ffmpeg/doc/examples/scaling_video.c | 140 ----- Music/ffmpeg/doc/examples/transcode_aac.c | 802 -------------------------- Music/ffmpeg/doc/examples/transcoding.c | 585 ------------------- 19 files changed, 5844 deletions(-) delete mode 100644 Music/ffmpeg/doc/examples/Makefile delete mode 100644 Music/ffmpeg/doc/examples/README delete mode 100644 Music/ffmpeg/doc/examples/avio_dir_cmd.c delete mode 100644 Music/ffmpeg/doc/examples/avio_reading.c delete mode 100644 Music/ffmpeg/doc/examples/decoding_encoding.c delete mode 100644 Music/ffmpeg/doc/examples/demuxing_decoding.c delete mode 100644 Music/ffmpeg/doc/examples/extract_mvs.c delete mode 100644 Music/ffmpeg/doc/examples/filter_audio.c delete mode 100644 Music/ffmpeg/doc/examples/filtering_audio.c delete mode 100644 Music/ffmpeg/doc/examples/filtering_video.c delete mode 100644 Music/ffmpeg/doc/examples/http_multiclient.c delete mode 100644 Music/ffmpeg/doc/examples/metadata.c delete mode 100644 Music/ffmpeg/doc/examples/muxing.c delete mode 100644 Music/ffmpeg/doc/examples/qsvdec.c delete mode 100644 Music/ffmpeg/doc/examples/remuxing.c delete mode 100644 Music/ffmpeg/doc/examples/resampling_audio.c delete mode 100644 Music/ffmpeg/doc/examples/scaling_video.c delete mode 100644 Music/ffmpeg/doc/examples/transcode_aac.c delete mode 100644 Music/ffmpeg/doc/examples/transcoding.c (limited to 'Music/ffmpeg/doc/examples') diff --git a/Music/ffmpeg/doc/examples/Makefile b/Music/ffmpeg/doc/examples/Makefile deleted file mode 100644 index af38159..0000000 --- a/Music/ffmpeg/doc/examples/Makefile +++ /dev/null @@ -1,46 +0,0 @@ -# use pkg-config for getting CFLAGS and LDLIBS -FFMPEG_LIBS= libavdevice \ - libavformat \ - libavfilter \ - libavcodec \ - libswresample \ - libswscale \ - libavutil \ - -CFLAGS += -Wall -g -CFLAGS := $(shell pkg-config --cflags $(FFMPEG_LIBS)) $(CFLAGS) -LDLIBS := $(shell pkg-config --libs $(FFMPEG_LIBS)) $(LDLIBS) - -EXAMPLES= avio_dir_cmd \ - avio_reading \ - decoding_encoding \ - demuxing_decoding \ - extract_mvs \ - filtering_video \ - filtering_audio \ - http_multiclient \ - metadata \ - muxing \ - remuxing \ - resampling_audio \ - scaling_video \ - transcode_aac \ - transcoding \ - -OBJS=$(addsuffix .o,$(EXAMPLES)) - -# the following examples make explicit use of the math library -avcodec: LDLIBS += -lm -decoding_encoding: LDLIBS += -lm -muxing: LDLIBS += -lm -resampling_audio: LDLIBS += -lm - -.phony: all clean-test clean - -all: $(OBJS) $(EXAMPLES) - -clean-test: - $(RM) test*.pgm test.h264 test.mp2 test.sw test.mpg - -clean: clean-test - $(RM) $(EXAMPLES) $(OBJS) diff --git a/Music/ffmpeg/doc/examples/README b/Music/ffmpeg/doc/examples/README deleted file mode 100644 index c1ce619..0000000 --- a/Music/ffmpeg/doc/examples/README +++ /dev/null @@ -1,23 +0,0 @@ -FFmpeg examples README ----------------------- - -Both following use cases rely on pkg-config and make, thus make sure -that you have them installed and working on your system. - - -Method 1: build the installed examples in a generic read/write user directory - -Copy to a read/write user directory and just use "make", it will link -to the libraries on your system, assuming the PKG_CONFIG_PATH is -correctly configured. - -Method 2: build the examples in-tree - -Assuming you are in the source FFmpeg checkout directory, you need to build -FFmpeg (no need to make install in any prefix). Then just run "make examples". -This will build the examples using the FFmpeg build system. You can clean those -examples using "make examplesclean" - -If you want to try the dedicated Makefile examples (to emulate the first -method), go into doc/examples and run a command such as -PKG_CONFIG_PATH=pc-uninstalled make. diff --git a/Music/ffmpeg/doc/examples/avio_dir_cmd.c b/Music/ffmpeg/doc/examples/avio_dir_cmd.c deleted file mode 100644 index 50c435c..0000000 --- a/Music/ffmpeg/doc/examples/avio_dir_cmd.c +++ /dev/null @@ -1,180 +0,0 @@ -/* - * Copyright (c) 2014 Lukasz Marek - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include -#include -#include - -static const char *type_string(int type) -{ - switch (type) { - case AVIO_ENTRY_DIRECTORY: - return ""; - case AVIO_ENTRY_FILE: - return ""; - case AVIO_ENTRY_BLOCK_DEVICE: - return ""; - case AVIO_ENTRY_CHARACTER_DEVICE: - return ""; - case AVIO_ENTRY_NAMED_PIPE: - return ""; - case AVIO_ENTRY_SYMBOLIC_LINK: - return ""; - case AVIO_ENTRY_SOCKET: - return ""; - case AVIO_ENTRY_SERVER: - return ""; - case AVIO_ENTRY_SHARE: - return ""; - case AVIO_ENTRY_WORKGROUP: - return ""; - case AVIO_ENTRY_UNKNOWN: - default: - break; - } - return ""; -} - -static int list_op(const char *input_dir) -{ - AVIODirEntry *entry = NULL; - AVIODirContext *ctx = NULL; - int cnt, ret; - char filemode[4], uid_and_gid[20]; - - if ((ret = avio_open_dir(&ctx, input_dir, NULL)) < 0) { - av_log(NULL, AV_LOG_ERROR, "Cannot open directory: %s.\n", av_err2str(ret)); - goto fail; - } - - cnt = 0; - for (;;) { - if ((ret = avio_read_dir(ctx, &entry)) < 0) { - av_log(NULL, AV_LOG_ERROR, "Cannot list directory: %s.\n", av_err2str(ret)); - goto fail; - } - if (!entry) - break; - if (entry->filemode == -1) { - snprintf(filemode, 4, "???"); - } else { - snprintf(filemode, 4, "%3"PRIo64, entry->filemode); - } - snprintf(uid_and_gid, 20, "%"PRId64"(%"PRId64")", entry->user_id, entry->group_id); - if (cnt == 0) - av_log(NULL, AV_LOG_INFO, "%-9s %12s %30s %10s %s %16s %16s %16s\n", - "TYPE", "SIZE", "NAME", "UID(GID)", "UGO", "MODIFIED", - "ACCESSED", "STATUS_CHANGED"); - av_log(NULL, AV_LOG_INFO, "%-9s %12"PRId64" %30s %10s %s %16"PRId64" %16"PRId64" %16"PRId64"\n", - type_string(entry->type), - entry->size, - entry->name, - uid_and_gid, - filemode, - entry->modification_timestamp, - entry->access_timestamp, - entry->status_change_timestamp); - avio_free_directory_entry(&entry); - cnt++; - }; - - fail: - avio_close_dir(&ctx); - return ret; -} - -static int del_op(const char *url) -{ - int ret = avpriv_io_delete(url); - if (ret < 0) - av_log(NULL, AV_LOG_ERROR, "Cannot delete '%s': %s.\n", url, av_err2str(ret)); - return ret; -} - -static int move_op(const char *src, const char *dst) -{ - int ret = avpriv_io_move(src, dst); - if (ret < 0) - av_log(NULL, AV_LOG_ERROR, "Cannot move '%s' into '%s': %s.\n", src, dst, av_err2str(ret)); - return ret; -} - - -static void usage(const char *program_name) -{ - fprintf(stderr, "usage: %s OPERATION entry1 [entry2]\n" - "API example program to show how to manipulate resources " - "accessed through AVIOContext.\n" - "OPERATIONS:\n" - "list list content of the directory\n" - "move rename content in directory\n" - "del delete content in directory\n", - program_name); -} - -int main(int argc, char *argv[]) -{ - const char *op = NULL; - int ret; - - av_log_set_level(AV_LOG_DEBUG); - - if (argc < 2) { - usage(argv[0]); - return 1; - } - - /* register codecs and formats and other lavf/lavc components*/ - av_register_all(); - avformat_network_init(); - - op = argv[1]; - if (strcmp(op, "list") == 0) { - if (argc < 3) { - av_log(NULL, AV_LOG_INFO, "Missing argument for list operation.\n"); - ret = AVERROR(EINVAL); - } else { - ret = list_op(argv[2]); - } - } else if (strcmp(op, "del") == 0) { - if (argc < 3) { - av_log(NULL, AV_LOG_INFO, "Missing argument for del operation.\n"); - ret = AVERROR(EINVAL); - } else { - ret = del_op(argv[2]); - } - } else if (strcmp(op, "move") == 0) { - if (argc < 4) { - av_log(NULL, AV_LOG_INFO, "Missing argument for move operation.\n"); - ret = AVERROR(EINVAL); - } else { - ret = move_op(argv[2], argv[3]); - } - } else { - av_log(NULL, AV_LOG_INFO, "Invalid operation %s\n", op); - ret = AVERROR(EINVAL); - } - - avformat_network_deinit(); - - return ret < 0 ? 1 : 0; -} diff --git a/Music/ffmpeg/doc/examples/avio_reading.c b/Music/ffmpeg/doc/examples/avio_reading.c deleted file mode 100644 index 02474e9..0000000 --- a/Music/ffmpeg/doc/examples/avio_reading.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * Copyright (c) 2014 Stefano Sabatini - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -/** - * @file - * libavformat AVIOContext API example. - * - * Make libavformat demuxer access media content through a custom - * AVIOContext read callback. - * @example avio_reading.c - */ - -#include -#include -#include -#include - -struct buffer_data { - uint8_t *ptr; - size_t size; ///< size left in the buffer -}; - -static int read_packet(void *opaque, uint8_t *buf, int buf_size) -{ - struct buffer_data *bd = (struct buffer_data *)opaque; - buf_size = FFMIN(buf_size, bd->size); - - printf("ptr:%p size:%zu\n", bd->ptr, bd->size); - - /* copy internal buffer data to buf */ - memcpy(buf, bd->ptr, buf_size); - bd->ptr += buf_size; - bd->size -= buf_size; - - return buf_size; -} - -int main(int argc, char *argv[]) -{ - AVFormatContext *fmt_ctx = NULL; - AVIOContext *avio_ctx = NULL; - uint8_t *buffer = NULL, *avio_ctx_buffer = NULL; - size_t buffer_size, avio_ctx_buffer_size = 4096; - char *input_filename = NULL; - int ret = 0; - struct buffer_data bd = { 0 }; - - if (argc != 2) { - fprintf(stderr, "usage: %s input_file\n" - "API example program to show how to read from a custom buffer " - "accessed through AVIOContext.\n", argv[0]); - return 1; - } - input_filename = argv[1]; - - /* register codecs and formats and other lavf/lavc components*/ - av_register_all(); - - /* slurp file content into buffer */ - ret = av_file_map(input_filename, &buffer, &buffer_size, 0, NULL); - if (ret < 0) - goto end; - - /* fill opaque structure used by the AVIOContext read callback */ - bd.ptr = buffer; - bd.size = buffer_size; - - if (!(fmt_ctx = avformat_alloc_context())) { - ret = AVERROR(ENOMEM); - goto end; - } - - avio_ctx_buffer = av_malloc(avio_ctx_buffer_size); - if (!avio_ctx_buffer) { - ret = AVERROR(ENOMEM); - goto end; - } - avio_ctx = avio_alloc_context(avio_ctx_buffer, avio_ctx_buffer_size, - 0, &bd, &read_packet, NULL, NULL); - if (!avio_ctx) { - ret = AVERROR(ENOMEM); - goto end; - } - fmt_ctx->pb = avio_ctx; - - ret = avformat_open_input(&fmt_ctx, NULL, NULL, NULL); - if (ret < 0) { - fprintf(stderr, "Could not open input\n"); - goto end; - } - - ret = avformat_find_stream_info(fmt_ctx, NULL); - if (ret < 0) { - fprintf(stderr, "Could not find stream information\n"); - goto end; - } - - av_dump_format(fmt_ctx, 0, input_filename, 0); - -end: - avformat_close_input(&fmt_ctx); - /* note: the internal buffer could have changed, and be != avio_ctx_buffer */ - if (avio_ctx) { - av_freep(&avio_ctx->buffer); - av_freep(&avio_ctx); - } - av_file_unmap(buffer, buffer_size); - - if (ret < 0) { - fprintf(stderr, "Error occurred: %s\n", av_err2str(ret)); - return 1; - } - - return 0; -} diff --git a/Music/ffmpeg/doc/examples/decoding_encoding.c b/Music/ffmpeg/doc/examples/decoding_encoding.c deleted file mode 100644 index 43a64c2..0000000 --- a/Music/ffmpeg/doc/examples/decoding_encoding.c +++ /dev/null @@ -1,665 +0,0 @@ -/* - * Copyright (c) 2001 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -/** - * @file - * libavcodec API use example. - * - * @example decoding_encoding.c - * Note that libavcodec only handles codecs (MPEG, MPEG-4, etc...), - * not file formats (AVI, VOB, MP4, MOV, MKV, MXF, FLV, MPEG-TS, MPEG-PS, etc...). - * See library 'libavformat' for the format handling - */ - -#include - -#include -#include -#include -#include -#include -#include -#include - -#define INBUF_SIZE 4096 -#define AUDIO_INBUF_SIZE 20480 -#define AUDIO_REFILL_THRESH 4096 - -/* check that a given sample format is supported by the encoder */ -static int check_sample_fmt(AVCodec *codec, enum AVSampleFormat sample_fmt) -{ - const enum AVSampleFormat *p = codec->sample_fmts; - - while (*p != AV_SAMPLE_FMT_NONE) { - if (*p == sample_fmt) - return 1; - p++; - } - return 0; -} - -/* just pick the highest supported samplerate */ -static int select_sample_rate(AVCodec *codec) -{ - const int *p; - int best_samplerate = 0; - - if (!codec->supported_samplerates) - return 44100; - - p = codec->supported_samplerates; - while (*p) { - best_samplerate = FFMAX(*p, best_samplerate); - p++; - } - return best_samplerate; -} - -/* select layout with the highest channel count */ -static int select_channel_layout(AVCodec *codec) -{ - const uint64_t *p; - uint64_t best_ch_layout = 0; - int best_nb_channels = 0; - - if (!codec->channel_layouts) - return AV_CH_LAYOUT_STEREO; - - p = codec->channel_layouts; - while (*p) { - int nb_channels = av_get_channel_layout_nb_channels(*p); - - if (nb_channels > best_nb_channels) { - best_ch_layout = *p; - best_nb_channels = nb_channels; - } - p++; - } - return best_ch_layout; -} - -/* - * Audio encoding example - */ -static void audio_encode_example(const char *filename) -{ - AVCodec *codec; - AVCodecContext *c= NULL; - AVFrame *frame; - AVPacket pkt; - int i, j, k, ret, got_output; - int buffer_size; - FILE *f; - uint16_t *samples; - float t, tincr; - - printf("Encode audio file %s\n", filename); - - /* find the MP2 encoder */ - codec = avcodec_find_encoder(AV_CODEC_ID_MP2); - if (!codec) { - fprintf(stderr, "Codec not found\n"); - exit(1); - } - - c = avcodec_alloc_context3(codec); - if (!c) { - fprintf(stderr, "Could not allocate audio codec context\n"); - exit(1); - } - - /* put sample parameters */ - c->bit_rate = 64000; - - /* check that the encoder supports s16 pcm input */ - c->sample_fmt = AV_SAMPLE_FMT_S16; - if (!check_sample_fmt(codec, c->sample_fmt)) { - fprintf(stderr, "Encoder does not support sample format %s", - av_get_sample_fmt_name(c->sample_fmt)); - exit(1); - } - - /* select other audio parameters supported by the encoder */ - c->sample_rate = select_sample_rate(codec); - c->channel_layout = select_channel_layout(codec); - c->channels = av_get_channel_layout_nb_channels(c->channel_layout); - - /* open it */ - if (avcodec_open2(c, codec, NULL) < 0) { - fprintf(stderr, "Could not open codec\n"); - exit(1); - } - - f = fopen(filename, "wb"); - if (!f) { - fprintf(stderr, "Could not open %s\n", filename); - exit(1); - } - - /* frame containing input raw audio */ - frame = av_frame_alloc(); - if (!frame) { - fprintf(stderr, "Could not allocate audio frame\n"); - exit(1); - } - - frame->nb_samples = c->frame_size; - frame->format = c->sample_fmt; - frame->channel_layout = c->channel_layout; - - /* the codec gives us the frame size, in samples, - * we calculate the size of the samples buffer in bytes */ - buffer_size = av_samples_get_buffer_size(NULL, c->channels, c->frame_size, - c->sample_fmt, 0); - if (buffer_size < 0) { - fprintf(stderr, "Could not get sample buffer size\n"); - exit(1); - } - samples = av_malloc(buffer_size); - if (!samples) { - fprintf(stderr, "Could not allocate %d bytes for samples buffer\n", - buffer_size); - exit(1); - } - /* setup the data pointers in the AVFrame */ - ret = avcodec_fill_audio_frame(frame, c->channels, c->sample_fmt, - (const uint8_t*)samples, buffer_size, 0); - if (ret < 0) { - fprintf(stderr, "Could not setup audio frame\n"); - exit(1); - } - - /* encode a single tone sound */ - t = 0; - tincr = 2 * M_PI * 440.0 / c->sample_rate; - for (i = 0; i < 200; i++) { - av_init_packet(&pkt); - pkt.data = NULL; // packet data will be allocated by the encoder - pkt.size = 0; - - for (j = 0; j < c->frame_size; j++) { - samples[2*j] = (int)(sin(t) * 10000); - - for (k = 1; k < c->channels; k++) - samples[2*j + k] = samples[2*j]; - t += tincr; - } - /* encode the samples */ - ret = avcodec_encode_audio2(c, &pkt, frame, &got_output); - if (ret < 0) { - fprintf(stderr, "Error encoding audio frame\n"); - exit(1); - } - if (got_output) { - fwrite(pkt.data, 1, pkt.size, f); - av_packet_unref(&pkt); - } - } - - /* get the delayed frames */ - for (got_output = 1; got_output; i++) { - ret = avcodec_encode_audio2(c, &pkt, NULL, &got_output); - if (ret < 0) { - fprintf(stderr, "Error encoding frame\n"); - exit(1); - } - - if (got_output) { - fwrite(pkt.data, 1, pkt.size, f); - av_packet_unref(&pkt); - } - } - fclose(f); - - av_freep(&samples); - av_frame_free(&frame); - avcodec_close(c); - av_free(c); -} - -/* - * Audio decoding. - */ -static void audio_decode_example(const char *outfilename, const char *filename) -{ - AVCodec *codec; - AVCodecContext *c= NULL; - int len; - FILE *f, *outfile; - uint8_t inbuf[AUDIO_INBUF_SIZE + AV_INPUT_BUFFER_PADDING_SIZE]; - AVPacket avpkt; - AVFrame *decoded_frame = NULL; - - av_init_packet(&avpkt); - - printf("Decode audio file %s to %s\n", filename, outfilename); - - /* find the MPEG audio decoder */ - codec = avcodec_find_decoder(AV_CODEC_ID_MP2); - if (!codec) { - fprintf(stderr, "Codec not found\n"); - exit(1); - } - - c = avcodec_alloc_context3(codec); - if (!c) { - fprintf(stderr, "Could not allocate audio codec context\n"); - exit(1); - } - - /* open it */ - if (avcodec_open2(c, codec, NULL) < 0) { - fprintf(stderr, "Could not open codec\n"); - exit(1); - } - - f = fopen(filename, "rb"); - if (!f) { - fprintf(stderr, "Could not open %s\n", filename); - exit(1); - } - outfile = fopen(outfilename, "wb"); - if (!outfile) { - av_free(c); - exit(1); - } - - /* decode until eof */ - avpkt.data = inbuf; - avpkt.size = fread(inbuf, 1, AUDIO_INBUF_SIZE, f); - - while (avpkt.size > 0) { - int i, ch; - int got_frame = 0; - - if (!decoded_frame) { - if (!(decoded_frame = av_frame_alloc())) { - fprintf(stderr, "Could not allocate audio frame\n"); - exit(1); - } - } - - len = avcodec_decode_audio4(c, decoded_frame, &got_frame, &avpkt); - if (len < 0) { - fprintf(stderr, "Error while decoding\n"); - exit(1); - } - if (got_frame) { - /* if a frame has been decoded, output it */ - int data_size = av_get_bytes_per_sample(c->sample_fmt); - if (data_size < 0) { - /* This should not occur, checking just for paranoia */ - fprintf(stderr, "Failed to calculate data size\n"); - exit(1); - } - for (i=0; inb_samples; i++) - for (ch=0; chchannels; ch++) - fwrite(decoded_frame->data[ch] + data_size*i, 1, data_size, outfile); - } - avpkt.size -= len; - avpkt.data += len; - avpkt.dts = - avpkt.pts = AV_NOPTS_VALUE; - if (avpkt.size < AUDIO_REFILL_THRESH) { - /* Refill the input buffer, to avoid trying to decode - * incomplete frames. Instead of this, one could also use - * a parser, or use a proper container format through - * libavformat. */ - memmove(inbuf, avpkt.data, avpkt.size); - avpkt.data = inbuf; - len = fread(avpkt.data + avpkt.size, 1, - AUDIO_INBUF_SIZE - avpkt.size, f); - if (len > 0) - avpkt.size += len; - } - } - - fclose(outfile); - fclose(f); - - avcodec_close(c); - av_free(c); - av_frame_free(&decoded_frame); -} - -/* - * Video encoding example - */ -static void video_encode_example(const char *filename, int codec_id) -{ - AVCodec *codec; - AVCodecContext *c= NULL; - int i, ret, x, y, got_output; - FILE *f; - AVFrame *frame; - AVPacket pkt; - uint8_t endcode[] = { 0, 0, 1, 0xb7 }; - - printf("Encode video file %s\n", filename); - - /* find the video encoder */ - codec = avcodec_find_encoder(codec_id); - if (!codec) { - fprintf(stderr, "Codec not found\n"); - exit(1); - } - - c = avcodec_alloc_context3(codec); - if (!c) { - fprintf(stderr, "Could not allocate video codec context\n"); - exit(1); - } - - /* put sample parameters */ - c->bit_rate = 400000; - /* resolution must be a multiple of two */ - c->width = 352; - c->height = 288; - /* frames per second */ - c->time_base = (AVRational){1,25}; - /* emit one intra frame every ten frames - * check frame pict_type before passing frame - * to encoder, if frame->pict_type is AV_PICTURE_TYPE_I - * then gop_size is ignored and the output of encoder - * will always be I frame irrespective to gop_size - */ - c->gop_size = 10; - c->max_b_frames = 1; - c->pix_fmt = AV_PIX_FMT_YUV420P; - - if (codec_id == AV_CODEC_ID_H264) - av_opt_set(c->priv_data, "preset", "slow", 0); - - /* open it */ - if (avcodec_open2(c, codec, NULL) < 0) { - fprintf(stderr, "Could not open codec\n"); - exit(1); - } - - f = fopen(filename, "wb"); - if (!f) { - fprintf(stderr, "Could not open %s\n", filename); - exit(1); - } - - frame = av_frame_alloc(); - if (!frame) { - fprintf(stderr, "Could not allocate video frame\n"); - exit(1); - } - frame->format = c->pix_fmt; - frame->width = c->width; - frame->height = c->height; - - /* the image can be allocated by any means and av_image_alloc() is - * just the most convenient way if av_malloc() is to be used */ - ret = av_image_alloc(frame->data, frame->linesize, c->width, c->height, - c->pix_fmt, 32); - if (ret < 0) { - fprintf(stderr, "Could not allocate raw picture buffer\n"); - exit(1); - } - - /* encode 1 second of video */ - for (i = 0; i < 25; i++) { - av_init_packet(&pkt); - pkt.data = NULL; // packet data will be allocated by the encoder - pkt.size = 0; - - fflush(stdout); - /* prepare a dummy image */ - /* Y */ - for (y = 0; y < c->height; y++) { - for (x = 0; x < c->width; x++) { - frame->data[0][y * frame->linesize[0] + x] = x + y + i * 3; - } - } - - /* Cb and Cr */ - for (y = 0; y < c->height/2; y++) { - for (x = 0; x < c->width/2; x++) { - frame->data[1][y * frame->linesize[1] + x] = 128 + y + i * 2; - frame->data[2][y * frame->linesize[2] + x] = 64 + x + i * 5; - } - } - - frame->pts = i; - - /* encode the image */ - ret = avcodec_encode_video2(c, &pkt, frame, &got_output); - if (ret < 0) { - fprintf(stderr, "Error encoding frame\n"); - exit(1); - } - - if (got_output) { - printf("Write frame %3d (size=%5d)\n", i, pkt.size); - fwrite(pkt.data, 1, pkt.size, f); - av_packet_unref(&pkt); - } - } - - /* get the delayed frames */ - for (got_output = 1; got_output; i++) { - fflush(stdout); - - ret = avcodec_encode_video2(c, &pkt, NULL, &got_output); - if (ret < 0) { - fprintf(stderr, "Error encoding frame\n"); - exit(1); - } - - if (got_output) { - printf("Write frame %3d (size=%5d)\n", i, pkt.size); - fwrite(pkt.data, 1, pkt.size, f); - av_packet_unref(&pkt); - } - } - - /* add sequence end code to have a real MPEG file */ - fwrite(endcode, 1, sizeof(endcode), f); - fclose(f); - - avcodec_close(c); - av_free(c); - av_freep(&frame->data[0]); - av_frame_free(&frame); - printf("\n"); -} - -/* - * Video decoding example - */ - -static void pgm_save(unsigned char *buf, int wrap, int xsize, int ysize, - char *filename) -{ - FILE *f; - int i; - - f = fopen(filename,"w"); - fprintf(f, "P5\n%d %d\n%d\n", xsize, ysize, 255); - for (i = 0; i < ysize; i++) - fwrite(buf + i * wrap, 1, xsize, f); - fclose(f); -} - -static int decode_write_frame(const char *outfilename, AVCodecContext *avctx, - AVFrame *frame, int *frame_count, AVPacket *pkt, int last) -{ - int len, got_frame; - char buf[1024]; - - len = avcodec_decode_video2(avctx, frame, &got_frame, pkt); - if (len < 0) { - fprintf(stderr, "Error while decoding frame %d\n", *frame_count); - return len; - } - if (got_frame) { - printf("Saving %sframe %3d\n", last ? "last " : "", *frame_count); - fflush(stdout); - - /* the picture is allocated by the decoder, no need to free it */ - snprintf(buf, sizeof(buf), outfilename, *frame_count); - pgm_save(frame->data[0], frame->linesize[0], - frame->width, frame->height, buf); - (*frame_count)++; - } - if (pkt->data) { - pkt->size -= len; - pkt->data += len; - } - return 0; -} - -static void video_decode_example(const char *outfilename, const char *filename) -{ - AVCodec *codec; - AVCodecContext *c= NULL; - int frame_count; - FILE *f; - AVFrame *frame; - uint8_t inbuf[INBUF_SIZE + AV_INPUT_BUFFER_PADDING_SIZE]; - AVPacket avpkt; - - av_init_packet(&avpkt); - - /* set end of buffer to 0 (this ensures that no overreading happens for damaged MPEG streams) */ - memset(inbuf + INBUF_SIZE, 0, AV_INPUT_BUFFER_PADDING_SIZE); - - printf("Decode video file %s to %s\n", filename, outfilename); - - /* find the MPEG-1 video decoder */ - codec = avcodec_find_decoder(AV_CODEC_ID_MPEG1VIDEO); - if (!codec) { - fprintf(stderr, "Codec not found\n"); - exit(1); - } - - c = avcodec_alloc_context3(codec); - if (!c) { - fprintf(stderr, "Could not allocate video codec context\n"); - exit(1); - } - - if (codec->capabilities & AV_CODEC_CAP_TRUNCATED) - c->flags |= AV_CODEC_FLAG_TRUNCATED; // we do not send complete frames - - /* For some codecs, such as msmpeg4 and mpeg4, width and height - MUST be initialized there because this information is not - available in the bitstream. */ - - /* open it */ - if (avcodec_open2(c, codec, NULL) < 0) { - fprintf(stderr, "Could not open codec\n"); - exit(1); - } - - f = fopen(filename, "rb"); - if (!f) { - fprintf(stderr, "Could not open %s\n", filename); - exit(1); - } - - frame = av_frame_alloc(); - if (!frame) { - fprintf(stderr, "Could not allocate video frame\n"); - exit(1); - } - - frame_count = 0; - for (;;) { - avpkt.size = fread(inbuf, 1, INBUF_SIZE, f); - if (avpkt.size == 0) - break; - - /* NOTE1: some codecs are stream based (mpegvideo, mpegaudio) - and this is the only method to use them because you cannot - know the compressed data size before analysing it. - - BUT some other codecs (msmpeg4, mpeg4) are inherently frame - based, so you must call them with all the data for one - frame exactly. You must also initialize 'width' and - 'height' before initializing them. */ - - /* NOTE2: some codecs allow the raw parameters (frame size, - sample rate) to be changed at any frame. We handle this, so - you should also take care of it */ - - /* here, we use a stream based decoder (mpeg1video), so we - feed decoder and see if it could decode a frame */ - avpkt.data = inbuf; - while (avpkt.size > 0) - if (decode_write_frame(outfilename, c, frame, &frame_count, &avpkt, 0) < 0) - exit(1); - } - - /* Some codecs, such as MPEG, transmit the I- and P-frame with a - latency of one frame. You must do the following to have a - chance to get the last frame of the video. */ - avpkt.data = NULL; - avpkt.size = 0; - decode_write_frame(outfilename, c, frame, &frame_count, &avpkt, 1); - - fclose(f); - - avcodec_close(c); - av_free(c); - av_frame_free(&frame); - printf("\n"); -} - -int main(int argc, char **argv) -{ - const char *output_type; - - /* register all the codecs */ - avcodec_register_all(); - - if (argc < 2) { - printf("usage: %s output_type\n" - "API example program to decode/encode a media stream with libavcodec.\n" - "This program generates a synthetic stream and encodes it to a file\n" - "named test.h264, test.mp2 or test.mpg depending on output_type.\n" - "The encoded stream is then decoded and written to a raw data output.\n" - "output_type must be chosen between 'h264', 'mp2', 'mpg'.\n", - argv[0]); - return 1; - } - output_type = argv[1]; - - if (!strcmp(output_type, "h264")) { - video_encode_example("test.h264", AV_CODEC_ID_H264); - } else if (!strcmp(output_type, "mp2")) { - audio_encode_example("test.mp2"); - audio_decode_example("test.pcm", "test.mp2"); - } else if (!strcmp(output_type, "mpg")) { - video_encode_example("test.mpg", AV_CODEC_ID_MPEG1VIDEO); - video_decode_example("test%02d.pgm", "test.mpg"); - } else { - fprintf(stderr, "Invalid output type '%s', choose between 'h264', 'mp2', or 'mpg'\n", - output_type); - return 1; - } - - return 0; -} diff --git a/Music/ffmpeg/doc/examples/demuxing_decoding.c b/Music/ffmpeg/doc/examples/demuxing_decoding.c deleted file mode 100644 index 49fb6af..0000000 --- a/Music/ffmpeg/doc/examples/demuxing_decoding.c +++ /dev/null @@ -1,394 +0,0 @@ -/* - * Copyright (c) 2012 Stefano Sabatini - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -/** - * @file - * Demuxing and decoding example. - * - * Show how to use the libavformat and libavcodec API to demux and - * decode audio and video data. - * @example demuxing_decoding.c - */ - -#include -#include -#include -#include - -static AVFormatContext *fmt_ctx = NULL; -static AVCodecContext *video_dec_ctx = NULL, *audio_dec_ctx; -static int width, height; -static enum AVPixelFormat pix_fmt; -static AVStream *video_stream = NULL, *audio_stream = NULL; -static const char *src_filename = NULL; -static const char *video_dst_filename = NULL; -static const char *audio_dst_filename = NULL; -static FILE *video_dst_file = NULL; -static FILE *audio_dst_file = NULL; - -static uint8_t *video_dst_data[4] = {NULL}; -static int video_dst_linesize[4]; -static int video_dst_bufsize; - -static int video_stream_idx = -1, audio_stream_idx = -1; -static AVFrame *frame = NULL; -static AVPacket pkt; -static int video_frame_count = 0; -static int audio_frame_count = 0; - -/* Enable or disable frame reference counting. You are not supposed to support - * both paths in your application but pick the one most appropriate to your - * needs. Look for the use of refcount in this example to see what are the - * differences of API usage between them. */ -static int refcount = 0; - -static int decode_packet(int *got_frame, int cached) -{ - int ret = 0; - int decoded = pkt.size; - - *got_frame = 0; - - if (pkt.stream_index == video_stream_idx) { - /* decode video frame */ - ret = avcodec_decode_video2(video_dec_ctx, frame, got_frame, &pkt); - if (ret < 0) { - fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret)); - return ret; - } - - if (*got_frame) { - - if (frame->width != width || frame->height != height || - frame->format != pix_fmt) { - /* To handle this change, one could call av_image_alloc again and - * decode the following frames into another rawvideo file. */ - fprintf(stderr, "Error: Width, height and pixel format have to be " - "constant in a rawvideo file, but the width, height or " - "pixel format of the input video changed:\n" - "old: width = %d, height = %d, format = %s\n" - "new: width = %d, height = %d, format = %s\n", - width, height, av_get_pix_fmt_name(pix_fmt), - frame->width, frame->height, - av_get_pix_fmt_name(frame->format)); - return -1; - } - - printf("video_frame%s n:%d coded_n:%d pts:%s\n", - cached ? "(cached)" : "", - video_frame_count++, frame->coded_picture_number, - av_ts2timestr(frame->pts, &video_dec_ctx->time_base)); - - /* copy decoded frame to destination buffer: - * this is required since rawvideo expects non aligned data */ - av_image_copy(video_dst_data, video_dst_linesize, - (const uint8_t **)(frame->data), frame->linesize, - pix_fmt, width, height); - - /* write to rawvideo file */ - fwrite(video_dst_data[0], 1, video_dst_bufsize, video_dst_file); - } - } else if (pkt.stream_index == audio_stream_idx) { - /* decode audio frame */ - ret = avcodec_decode_audio4(audio_dec_ctx, frame, got_frame, &pkt); - if (ret < 0) { - fprintf(stderr, "Error decoding audio frame (%s)\n", av_err2str(ret)); - return ret; - } - /* Some audio decoders decode only part of the packet, and have to be - * called again with the remainder of the packet data. - * Sample: fate-suite/lossless-audio/luckynight-partial.shn - * Also, some decoders might over-read the packet. */ - decoded = FFMIN(ret, pkt.size); - - if (*got_frame) { - size_t unpadded_linesize = frame->nb_samples * av_get_bytes_per_sample(frame->format); - printf("audio_frame%s n:%d nb_samples:%d pts:%s\n", - cached ? "(cached)" : "", - audio_frame_count++, frame->nb_samples, - av_ts2timestr(frame->pts, &audio_dec_ctx->time_base)); - - /* Write the raw audio data samples of the first plane. This works - * fine for packed formats (e.g. AV_SAMPLE_FMT_S16). However, - * most audio decoders output planar audio, which uses a separate - * plane of audio samples for each channel (e.g. AV_SAMPLE_FMT_S16P). - * In other words, this code will write only the first audio channel - * in these cases. - * You should use libswresample or libavfilter to convert the frame - * to packed data. */ - fwrite(frame->extended_data[0], 1, unpadded_linesize, audio_dst_file); - } - } - - /* If we use frame reference counting, we own the data and need - * to de-reference it when we don't use it anymore */ - if (*got_frame && refcount) - av_frame_unref(frame); - - return decoded; -} - -static int open_codec_context(int *stream_idx, - AVCodecContext **dec_ctx, AVFormatContext *fmt_ctx, enum AVMediaType type) -{ - int ret, stream_index; - AVStream *st; - AVCodec *dec = NULL; - AVDictionary *opts = NULL; - - ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0); - if (ret < 0) { - fprintf(stderr, "Could not find %s stream in input file '%s'\n", - av_get_media_type_string(type), src_filename); - return ret; - } else { - stream_index = ret; - st = fmt_ctx->streams[stream_index]; - - /* find decoder for the stream */ - dec = avcodec_find_decoder(st->codecpar->codec_id); - if (!dec) { - fprintf(stderr, "Failed to find %s codec\n", - av_get_media_type_string(type)); - return AVERROR(EINVAL); - } - - /* Allocate a codec context for the decoder */ - *dec_ctx = avcodec_alloc_context3(dec); - if (!*dec_ctx) { - fprintf(stderr, "Failed to allocate the %s codec context\n", - av_get_media_type_string(type)); - return AVERROR(ENOMEM); - } - - /* Copy codec parameters from input stream to output codec context */ - if ((ret = avcodec_parameters_to_context(*dec_ctx, st->codecpar)) < 0) { - fprintf(stderr, "Failed to copy %s codec parameters to decoder context\n", - av_get_media_type_string(type)); - return ret; - } - - /* Init the decoders, with or without reference counting */ - av_dict_set(&opts, "refcounted_frames", refcount ? "1" : "0", 0); - if ((ret = avcodec_open2(*dec_ctx, dec, &opts)) < 0) { - fprintf(stderr, "Failed to open %s codec\n", - av_get_media_type_string(type)); - return ret; - } - *stream_idx = stream_index; - } - - return 0; -} - -static int get_format_from_sample_fmt(const char **fmt, - enum AVSampleFormat sample_fmt) -{ - int i; - struct sample_fmt_entry { - enum AVSampleFormat sample_fmt; const char *fmt_be, *fmt_le; - } sample_fmt_entries[] = { - { AV_SAMPLE_FMT_U8, "u8", "u8" }, - { AV_SAMPLE_FMT_S16, "s16be", "s16le" }, - { AV_SAMPLE_FMT_S32, "s32be", "s32le" }, - { AV_SAMPLE_FMT_FLT, "f32be", "f32le" }, - { AV_SAMPLE_FMT_DBL, "f64be", "f64le" }, - }; - *fmt = NULL; - - for (i = 0; i < FF_ARRAY_ELEMS(sample_fmt_entries); i++) { - struct sample_fmt_entry *entry = &sample_fmt_entries[i]; - if (sample_fmt == entry->sample_fmt) { - *fmt = AV_NE(entry->fmt_be, entry->fmt_le); - return 0; - } - } - - fprintf(stderr, - "sample format %s is not supported as output format\n", - av_get_sample_fmt_name(sample_fmt)); - return -1; -} - -int main (int argc, char **argv) -{ - int ret = 0, got_frame; - - if (argc != 4 && argc != 5) { - fprintf(stderr, "usage: %s [-refcount] input_file video_output_file audio_output_file\n" - "API example program to show how to read frames from an input file.\n" - "This program reads frames from a file, decodes them, and writes decoded\n" - "video frames to a rawvideo file named video_output_file, and decoded\n" - "audio frames to a rawaudio file named audio_output_file.\n\n" - "If the -refcount option is specified, the program use the\n" - "reference counting frame system which allows keeping a copy of\n" - "the data for longer than one decode call.\n" - "\n", argv[0]); - exit(1); - } - if (argc == 5 && !strcmp(argv[1], "-refcount")) { - refcount = 1; - argv++; - } - src_filename = argv[1]; - video_dst_filename = argv[2]; - audio_dst_filename = argv[3]; - - /* register all formats and codecs */ - av_register_all(); - - /* open input file, and allocate format context */ - if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) { - fprintf(stderr, "Could not open source file %s\n", src_filename); - exit(1); - } - - /* retrieve stream information */ - if (avformat_find_stream_info(fmt_ctx, NULL) < 0) { - fprintf(stderr, "Could not find stream information\n"); - exit(1); - } - - if (open_codec_context(&video_stream_idx, &video_dec_ctx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) { - video_stream = fmt_ctx->streams[video_stream_idx]; - - video_dst_file = fopen(video_dst_filename, "wb"); - if (!video_dst_file) { - fprintf(stderr, "Could not open destination file %s\n", video_dst_filename); - ret = 1; - goto end; - } - - /* allocate image where the decoded image will be put */ - width = video_dec_ctx->width; - height = video_dec_ctx->height; - pix_fmt = video_dec_ctx->pix_fmt; - ret = av_image_alloc(video_dst_data, video_dst_linesize, - width, height, pix_fmt, 1); - if (ret < 0) { - fprintf(stderr, "Could not allocate raw video buffer\n"); - goto end; - } - video_dst_bufsize = ret; - } - - if (open_codec_context(&audio_stream_idx, &audio_dec_ctx, fmt_ctx, AVMEDIA_TYPE_AUDIO) >= 0) { - audio_stream = fmt_ctx->streams[audio_stream_idx]; - audio_dst_file = fopen(audio_dst_filename, "wb"); - if (!audio_dst_file) { - fprintf(stderr, "Could not open destination file %s\n", audio_dst_filename); - ret = 1; - goto end; - } - } - - /* dump input information to stderr */ - av_dump_format(fmt_ctx, 0, src_filename, 0); - - if (!audio_stream && !video_stream) { - fprintf(stderr, "Could not find audio or video stream in the input, aborting\n"); - ret = 1; - goto end; - } - - frame = av_frame_alloc(); - if (!frame) { - fprintf(stderr, "Could not allocate frame\n"); - ret = AVERROR(ENOMEM); - goto end; - } - - /* initialize packet, set data to NULL, let the demuxer fill it */ - av_init_packet(&pkt); - pkt.data = NULL; - pkt.size = 0; - - if (video_stream) - printf("Demuxing video from file '%s' into '%s'\n", src_filename, video_dst_filename); - if (audio_stream) - printf("Demuxing audio from file '%s' into '%s'\n", src_filename, audio_dst_filename); - - /* read frames from the file */ - while (av_read_frame(fmt_ctx, &pkt) >= 0) { - AVPacket orig_pkt = pkt; - do { - ret = decode_packet(&got_frame, 0); - if (ret < 0) - break; - pkt.data += ret; - pkt.size -= ret; - } while (pkt.size > 0); - av_packet_unref(&orig_pkt); - } - - /* flush cached frames */ - pkt.data = NULL; - pkt.size = 0; - do { - decode_packet(&got_frame, 1); - } while (got_frame); - - printf("Demuxing succeeded.\n"); - - if (video_stream) { - printf("Play the output video file with the command:\n" - "ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n", - av_get_pix_fmt_name(pix_fmt), width, height, - video_dst_filename); - } - - if (audio_stream) { - enum AVSampleFormat sfmt = audio_dec_ctx->sample_fmt; - int n_channels = audio_dec_ctx->channels; - const char *fmt; - - if (av_sample_fmt_is_planar(sfmt)) { - const char *packed = av_get_sample_fmt_name(sfmt); - printf("Warning: the sample format the decoder produced is planar " - "(%s). This example will output the first channel only.\n", - packed ? packed : "?"); - sfmt = av_get_packed_sample_fmt(sfmt); - n_channels = 1; - } - - if ((ret = get_format_from_sample_fmt(&fmt, sfmt)) < 0) - goto end; - - printf("Play the output audio file with the command:\n" - "ffplay -f %s -ac %d -ar %d %s\n", - fmt, n_channels, audio_dec_ctx->sample_rate, - audio_dst_filename); - } - -end: - avcodec_free_context(&video_dec_ctx); - avcodec_free_context(&audio_dec_ctx); - avformat_close_input(&fmt_ctx); - if (video_dst_file) - fclose(video_dst_file); - if (audio_dst_file) - fclose(audio_dst_file); - av_frame_free(&frame); - av_free(video_dst_data[0]); - - return ret < 0; -} diff --git a/Music/ffmpeg/doc/examples/extract_mvs.c b/Music/ffmpeg/doc/examples/extract_mvs.c deleted file mode 100644 index 975189c..0000000 --- a/Music/ffmpeg/doc/examples/extract_mvs.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * Copyright (c) 2012 Stefano Sabatini - * Copyright (c) 2014 Clément Bœsch - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#include -#include - -static AVFormatContext *fmt_ctx = NULL; -static AVCodecContext *video_dec_ctx = NULL; -static AVStream *video_stream = NULL; -static const char *src_filename = NULL; - -static int video_stream_idx = -1; -static AVFrame *frame = NULL; -static AVPacket pkt; -static int video_frame_count = 0; - -static int decode_packet(int *got_frame, int cached) -{ - int decoded = pkt.size; - - *got_frame = 0; - - if (pkt.stream_index == video_stream_idx) { - int ret = avcodec_decode_video2(video_dec_ctx, frame, got_frame, &pkt); - if (ret < 0) { - fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret)); - return ret; - } - - if (*got_frame) { - int i; - AVFrameSideData *sd; - - video_frame_count++; - sd = av_frame_get_side_data(frame, AV_FRAME_DATA_MOTION_VECTORS); - if (sd) { - const AVMotionVector *mvs = (const AVMotionVector *)sd->data; - for (i = 0; i < sd->size / sizeof(*mvs); i++) { - const AVMotionVector *mv = &mvs[i]; - printf("%d,%2d,%2d,%2d,%4d,%4d,%4d,%4d,0x%"PRIx64"\n", - video_frame_count, mv->source, - mv->w, mv->h, mv->src_x, mv->src_y, - mv->dst_x, mv->dst_y, mv->flags); - } - } - } - } - - return decoded; -} - -static int open_codec_context(int *stream_idx, - AVFormatContext *fmt_ctx, enum AVMediaType type) -{ - int ret; - AVStream *st; - AVCodecContext *dec_ctx = NULL; - AVCodec *dec = NULL; - AVDictionary *opts = NULL; - - ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0); - if (ret < 0) { - fprintf(stderr, "Could not find %s stream in input file '%s'\n", - av_get_media_type_string(type), src_filename); - return ret; - } else { - *stream_idx = ret; - st = fmt_ctx->streams[*stream_idx]; - - /* find decoder for the stream */ - dec_ctx = st->codec; - dec = avcodec_find_decoder(dec_ctx->codec_id); - if (!dec) { - fprintf(stderr, "Failed to find %s codec\n", - av_get_media_type_string(type)); - return AVERROR(EINVAL); - } - - /* Init the video decoder */ - av_dict_set(&opts, "flags2", "+export_mvs", 0); - if ((ret = avcodec_open2(dec_ctx, dec, &opts)) < 0) { - fprintf(stderr, "Failed to open %s codec\n", - av_get_media_type_string(type)); - return ret; - } - } - - return 0; -} - -int main(int argc, char **argv) -{ - int ret = 0, got_frame; - - if (argc != 2) { - fprintf(stderr, "Usage: %s