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FFMPEG audio transcoding using libav* libraries
25 mai 2022, par vinvinodI am writing an audio transcoding application using ffmpeg libraries. 
Here is my code



/*
 * File: main.cpp
 * Author: vinod
 * Compile with "g++ -std=c++11 -o audiotranscode main.cpp -lavformat -lavcodec -lavutil -lavfilter"
 * 
 */


 #if !defined PRId64 || PRI_MACROS_BROKEN
 #undef PRId64
 #define PRId64 "lld"
 #endif

 #define __STDC_FORMAT_MACROS

 #ifdef __cplusplus
 extern "C" {
 #endif

 #include 
 #include 
 #include <sys></sys>types.h>
 #include 
 #include <libavutil></libavutil>imgutils.h>
 #include <libavutil></libavutil>samplefmt.h>
 #include <libavutil></libavutil>frame.h>
 #include <libavutil></libavutil>timestamp.h>
 #include <libavformat></libavformat>avformat.h>
 #include <libavfilter></libavfilter>avfilter.h>
 #include <libavfilter></libavfilter>buffersrc.h>
 #include <libavfilter></libavfilter>buffersink.h>
 #include <libswscale></libswscale>swscale.h>
 #include <libavutil></libavutil>opt.h>

 #ifdef __cplusplus
 }
 #endif

 #include <iostream>
 using namespace std;

 int select_stream, got_frame, got_packet;

 AVFormatContext *in_fmt_ctx = NULL, *out_fmt_ctx = NULL;
 AVCodec *dec_codec = NULL, * enc_codec = NULL;
 AVStream *audio_st = NULL;
 AVCodecContext *enc_ctx = NULL, *dec_ctx = NULL;

 AVFrame *pFrame = NULL, * pFrameFiltered = NULL;

 AVFilterGraph *filter_graph = NULL;
 AVFilterContext *buffersrc_ctx = NULL;
 AVFilterContext *buffersink_ctx = NULL;

 AVPacket packet;

 string inFileName = "/home/vinod/vinod/Media/univac.webm";
 string outFileName = "audio_extracted.m4a";

 int target_bit_rate = 128000,
 sample_rate = 22050,
 channels = 1;
 AVSampleFormat sample_fmt = AV_SAMPLE_FMT_S16;
 string filter_description = "aresample=22050,aformat=sample_fmts=s16:channel_layouts=mono";

 int log_averror(int errcode)
 {
 char *errbuf = (char *) calloc(AV_ERROR_MAX_STRING_SIZE, sizeof(char));
 av_strerror(errcode, errbuf, AV_ERROR_MAX_STRING_SIZE);
 std::cout << "Error - " << errbuf << std::endl;
 delete [] errbuf;
 return -1;
 }

 /**
 * Initialize conversion filter */
 int initialize_audio_filter()
 {
 char args[512];
 int ret;
 AVFilter *buffersrc = avfilter_get_by_name("abuffer");
 AVFilter *buffersink = avfilter_get_by_name("abuffersink");
 AVFilterInOut *outputs = avfilter_inout_alloc();
 AVFilterInOut *inputs = avfilter_inout_alloc();
 filter_graph = avfilter_graph_alloc();
 const enum AVSampleFormat out_sample_fmts[] = {sample_fmt, AV_SAMPLE_FMT_NONE};
 const int64_t out_channel_layouts[] = {av_get_default_channel_layout(out_fmt_ctx -> streams[0] -> codec -> channels), -1};
 const int out_sample_rates[] = {out_fmt_ctx -> streams[0] -> codec -> sample_rate, -1};

 if (!dec_ctx->channel_layout)
 dec_ctx->channel_layout = av_get_default_channel_layout(dec_ctx->channels);

 snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%" PRIx64,
 in_fmt_ctx -> streams[select_stream] -> time_base.num, in_fmt_ctx -> streams[select_stream] -> time_base.den,
 dec_ctx->sample_rate,
 av_get_sample_fmt_name(dec_ctx->sample_fmt),
 dec_ctx->channel_layout);
 ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in", args, NULL, filter_graph);

 if (ret < 0) {
 av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
 return -1;
 }

 ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out", NULL, NULL, filter_graph);

 if (ret < 0) {
 av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
 return ret;
 }

 ret = av_opt_set_int_list(buffersink_ctx, "sample_fmts", out_sample_fmts, -1,
 AV_OPT_SEARCH_CHILDREN);

 if (ret < 0) {
 av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
 return ret;
 }

 ret = av_opt_set_int_list(buffersink_ctx, "channel_layouts", out_channel_layouts, -1,
 AV_OPT_SEARCH_CHILDREN);

 if (ret < 0) {
 av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
 return ret;
 }

 ret = av_opt_set_int_list(buffersink_ctx, "sample_rates", out_sample_rates, -1,
 AV_OPT_SEARCH_CHILDREN);

 if (ret < 0) {
 av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
 return ret;
 }

 /* Endpoints for the filter graph. */
 outputs -> name = av_strdup("in");
 outputs -> filter_ctx = buffersrc_ctx;
 outputs -> pad_idx = 0;
 outputs -> next = NULL;
 /* Endpoints for the filter graph. */
 inputs -> name = av_strdup("out");
 inputs -> filter_ctx = buffersink_ctx;
 inputs -> pad_idx = 0;
 inputs -> next = NULL;
 string filter_desc = filter_description;

 if ((ret = avfilter_graph_parse_ptr(filter_graph, filter_desc.c_str(), &inputs, &outputs, NULL)) < 0) {
 log_averror(ret);
 exit(1);
 }

 if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0) {
 log_averror(ret);
 exit(1);
 }

 /* Print summary of the sink buffer
 * Note: args buffer is reused to store channel layout string */
 AVFilterLink *outlink = buffersink_ctx->inputs[0];
 av_get_channel_layout_string(args, sizeof(args), -1, outlink->channel_layout);
 av_log(NULL, AV_LOG_INFO, "Output: srate:%dHz fmt:%s chlayout:%s\n",
 (int) outlink->sample_rate,
 (char *) av_x_if_null(av_get_sample_fmt_name((AVSampleFormat) outlink->format), "?"),
 args);
 return 0;
 }

 /*
 *
 */
 int main(int argc, char **argv)
 {
 int ret;
 cout << "Hello World" << endl;
 printf("abcd");
 avcodec_register_all();
 av_register_all();
 avfilter_register_all();

 /* open input file, and allocate format context */
 if (avformat_open_input(&in_fmt_ctx, inFileName.c_str(), NULL, NULL) < 0) {
 std::cout << "error opening input file - " << inFileName << std::endl;
 return -1;
 }

 /* retrieve stream information */
 if (avformat_find_stream_info(in_fmt_ctx, NULL) < 0) {
 std::cerr << "Could not find stream information in the input file " << inFileName << std::endl;
 }

 /* Dump format details */
 printf("\n ---------------------------------------------------------------------- \n");
 av_dump_format(in_fmt_ctx, 0, inFileName.c_str(), 0);
 printf("\n ---------------------------------------------------------------------- \n");
 /* Choose a audio stream */
 select_stream = av_find_best_stream(in_fmt_ctx, AVMEDIA_TYPE_AUDIO, -1, -1, &dec_codec, 0);

 if (select_stream == AVERROR_STREAM_NOT_FOUND) {
 std::cerr << "No audio stream found" << std::endl;
 return -1;
 }

 if (select_stream == AVERROR_DECODER_NOT_FOUND) {
 std::cerr << "No suitable decoder found" << std::endl;
 return -1;
 }

 dec_ctx = in_fmt_ctx -> streams[ select_stream] -> codec;
 av_opt_set_int(dec_ctx, "refcounted_frames", 1, 0);

 /* init the audio decoder */
 if ((ret = avcodec_open2(dec_ctx, dec_codec, NULL)) < 0) {
 av_log(NULL, AV_LOG_ERROR, "Cannot open audio decoder\n");
 return ret;
 }

 /* allocate output context */
 ret = avformat_alloc_output_context2(&out_fmt_ctx, NULL, NULL,
 outFileName.c_str());

 if (ret < 0) {
 std::cerr << "Could not create output context for the file " << outFileName << std::endl;
 return -1;
 }

 /* find the encoder */
 enum AVCodecID codec_id = out_fmt_ctx -> oformat -> audio_codec;
 enc_codec = avcodec_find_encoder(codec_id);

 if (!(enc_codec)) {
 std::cerr << "Could not find encoder for - " << avcodec_get_name(codec_id) << std::endl;
 return -1;
 }

 /* add a new stream */
 audio_st = avformat_new_stream(out_fmt_ctx, enc_codec);

 if (!audio_st) {
 std::cerr << "Could not add audio stream - " << std::endl;
 }

 /* Initialise audio codec */
 audio_st -> id = out_fmt_ctx -> nb_streams - 1;
 enc_ctx = audio_st -> codec;
 enc_ctx -> codec_id = codec_id;
 enc_ctx -> codec_type = AVMEDIA_TYPE_AUDIO;
 enc_ctx -> bit_rate = target_bit_rate;
 enc_ctx -> sample_rate = sample_rate;
 enc_ctx -> sample_fmt = sample_fmt;
 enc_ctx -> channels = channels;
 enc_ctx -> channel_layout = av_get_default_channel_layout(enc_ctx -> channels);

 /* Some formats want stream headers to be separate. */
 if (out_fmt_ctx -> oformat -> flags & AVFMT_GLOBALHEADER) {
 enc_ctx -> flags |= CODEC_FLAG_GLOBAL_HEADER;
 }

 ret = avcodec_open2(out_fmt_ctx -> streams[0] -> codec, enc_codec, NULL);

 if (ret < 0) {
 std::cerr << "Could not create codec context for the file " << outFileName << std::endl;
 return -1;
 }

 /* Initialize filter */
 initialize_audio_filter();

 if (!(out_fmt_ctx -> oformat -> flags & AVFMT_NOFILE)) {
 int ret = avio_open(& out_fmt_ctx -> pb, outFileName.c_str(),
 AVIO_FLAG_WRITE);

 if (ret < 0) {
 log_averror(ret);
 return -1;
 }
 }

 /* Write header */
 if (avformat_write_header(out_fmt_ctx, NULL) < 0) {
 if (ret < 0) {
 log_averror(ret);
 return -1;
 }
 }

 /* Allocate frame */
 pFrame = av_frame_alloc();

 if (!pFrame) {
 std::cerr << "Could not allocate frame\n";
 return -1;
 }

 pFrameFiltered = av_frame_alloc();

 if (!pFrameFiltered) {
 std::cerr << "Could not allocate frame\n";
 return -1;
 }

 av_init_packet(&packet);
 packet.data = NULL;
 packet.size = 0;

 /* Read packet from the stream */
 while (av_read_frame(in_fmt_ctx, &packet) >= 0) {
 if (packet.stream_index == select_stream) {
 avcodec_get_frame_defaults(pFrame);
 ret = avcodec_decode_audio4(dec_ctx, pFrame, &got_frame, &packet);

 if (ret < 0) {
 log_averror(ret);
 return ret;
 }

 printf("Decoded packet pts : %ld ", packet.pts);
 printf("Frame Best Effor pts : %ld \n", pFrame->best_effort_timestamp);
 /* Set frame pts */
 pFrame -> pts = av_frame_get_best_effort_timestamp(pFrame);

 if (got_frame) {
 /* push the decoded frame into the filtergraph */
 ret = av_buffersrc_add_frame_flags(buffersrc_ctx, pFrame, AV_BUFFERSRC_FLAG_KEEP_REF);

 if (ret < 0) {
 log_averror(ret);
 return ret;
 }

 /* pull filtered frames from the filtergraph */
 while (1) {
 ret = av_buffersink_get_frame(buffersink_ctx, pFrameFiltered);

 if ((ret == AVERROR(EAGAIN)) || (ret == AVERROR_EOF)) {
 break;
 }

 if (ret < 0) {
 printf("Error while getting filtered frames from filtergraph\n");
 log_averror(ret);
 return -1;
 }

 /* Initialize the packets */
 AVPacket encodedPacket = {0};
 av_init_packet(&encodedPacket);
 ret = avcodec_encode_audio2(out_fmt_ctx -> streams[0] -> codec, &encodedPacket, pFrameFiltered, &got_packet);

 if (!ret && got_packet && encodedPacket.size) {
 /* Set correct pts and dts */
 if (encodedPacket.pts != AV_NOPTS_VALUE) {
 encodedPacket.pts = av_rescale_q(encodedPacket.pts, buffersink_ctx -> inputs[0] -> time_base,
 out_fmt_ctx -> streams[0] -> time_base);
 }

 if (encodedPacket.dts != AV_NOPTS_VALUE) {
 encodedPacket.dts = av_rescale_q(encodedPacket.dts, buffersink_ctx -> inputs[0] -> time_base,
 out_fmt_ctx -> streams[0] -> time_base);
 }

 printf("Encoded packet pts %ld\n", encodedPacket.pts);
 /* Write the compressed frame to the media file. */
 ret = av_interleaved_write_frame(out_fmt_ctx, &encodedPacket);

 if (ret < 0) {
 log_averror(ret);
 return -1;
 }
 } else if (ret < 0) {
 log_averror(ret);
 return -1;
 }

 av_frame_unref(pFrameFiltered);
 }

 av_frame_unref(pFrame);
 }
 }
 }

 /* Flush delayed frames from encoder*/
 got_packet=1;
 while (got_packet) {
 AVPacket encodedPacket = {0};
 av_init_packet(&encodedPacket);
 ret = avcodec_encode_audio2(out_fmt_ctx -> streams[0] -> codec, &encodedPacket, NULL, &got_packet);

 if (!ret && got_packet && encodedPacket.size) {
 /* Set correct pts and dts */
 if (encodedPacket.pts != AV_NOPTS_VALUE) {
 encodedPacket.pts = av_rescale_q(encodedPacket.pts, buffersink_ctx -> inputs[0] -> time_base,
 out_fmt_ctx -> streams[0] -> time_base);
 }

 if (encodedPacket.dts != AV_NOPTS_VALUE) {
 encodedPacket.dts = av_rescale_q(encodedPacket.dts, buffersink_ctx -> inputs[0] -> time_base,
 out_fmt_ctx -> streams[0] -> time_base);
 }

 printf("Encoded packet pts %ld\n", encodedPacket.pts);
 /* Write the compressed frame to the media file. */
 ret = av_interleaved_write_frame(out_fmt_ctx, &encodedPacket);

 if (ret < 0) {
 log_averror(ret);
 return -1;
 }
 } else if (ret < 0) {
 log_averror(ret);
 return -1;
 }
 }

 /* Write Trailer */
 av_write_trailer(out_fmt_ctx);
 avfilter_graph_free(&filter_graph);

 if (dec_ctx)
 avcodec_close(dec_ctx);

 avformat_close_input(&in_fmt_ctx);
 av_frame_free(&pFrame);
 av_frame_free(&pFrameFiltered);

 if (!(out_fmt_ctx -> oformat -> flags & AVFMT_NOFILE))
 avio_close(out_fmt_ctx -> pb);
 avcodec_close(out_fmt_ctx->streams[0]->codec);
 avformat_free_context(out_fmt_ctx);
 return 0;
 }
</iostream>


The audio file after transcoding is same duration as the input. But its completely noisy. Can somebody tell me what I am doing wrong here !


-
FFMPEG audio transcoding using libav* libraries
10 février 2014, par vinvinodI am writing an audio transcoding application using ffmpeg libraries.
Here is my code/*
* File: main.cpp
* Author: vinod
* Compile with "g++ -std=c++11 -o audiotranscode main.cpp -lavformat -lavcodec -lavutil -lavfilter"
*
*/
#if !defined PRId64 || PRI_MACROS_BROKEN
#undef PRId64
#define PRId64 "lld"
#endif
#define __STDC_FORMAT_MACROS
#ifdef __cplusplus
extern "C" {
#endif
#include
#include
#include <sys></sys>types.h>
#include
#include <libavutil></libavutil>imgutils.h>
#include <libavutil></libavutil>samplefmt.h>
#include <libavutil></libavutil>frame.h>
#include <libavutil></libavutil>timestamp.h>
#include <libavformat></libavformat>avformat.h>
#include <libavfilter></libavfilter>avfilter.h>
#include <libavfilter></libavfilter>buffersrc.h>
#include <libavfilter></libavfilter>buffersink.h>
#include <libswscale></libswscale>swscale.h>
#include <libavutil></libavutil>opt.h>
#ifdef __cplusplus
}
#endif
#include <iostream>
using namespace std;
int select_stream, got_frame, got_packet;
AVFormatContext *in_fmt_ctx = NULL, *out_fmt_ctx = NULL;
AVCodec *dec_codec = NULL, * enc_codec = NULL;
AVStream *audio_st = NULL;
AVCodecContext *enc_ctx = NULL, *dec_ctx = NULL;
AVFrame *pFrame = NULL, * pFrameFiltered = NULL;
AVFilterGraph *filter_graph = NULL;
AVFilterContext *buffersrc_ctx = NULL;
AVFilterContext *buffersink_ctx = NULL;
AVPacket packet;
string inFileName = "/home/vinod/vinod/Media/univac.webm";
string outFileName = "audio_extracted.m4a";
int target_bit_rate = 128000,
sample_rate = 22050,
channels = 1;
AVSampleFormat sample_fmt = AV_SAMPLE_FMT_S16;
string filter_description = "aresample=22050,aformat=sample_fmts=s16:channel_layouts=mono";
int log_averror(int errcode)
{
char *errbuf = (char *) calloc(AV_ERROR_MAX_STRING_SIZE, sizeof(char));
av_strerror(errcode, errbuf, AV_ERROR_MAX_STRING_SIZE);
std::cout << "Error - " << errbuf << std::endl;
delete [] errbuf;
return -1;
}
/**
* Initialize conversion filter */
int initialize_audio_filter()
{
char args[512];
int ret;
AVFilter *buffersrc = avfilter_get_by_name("abuffer");
AVFilter *buffersink = avfilter_get_by_name("abuffersink");
AVFilterInOut *outputs = avfilter_inout_alloc();
AVFilterInOut *inputs = avfilter_inout_alloc();
filter_graph = avfilter_graph_alloc();
const enum AVSampleFormat out_sample_fmts[] = {sample_fmt, AV_SAMPLE_FMT_NONE};
const int64_t out_channel_layouts[] = {av_get_default_channel_layout(out_fmt_ctx -> streams[0] -> codec -> channels), -1};
const int out_sample_rates[] = {out_fmt_ctx -> streams[0] -> codec -> sample_rate, -1};
if (!dec_ctx->channel_layout)
dec_ctx->channel_layout = av_get_default_channel_layout(dec_ctx->channels);
snprintf(args, sizeof(args), "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%" PRIx64,
in_fmt_ctx -> streams[select_stream] -> time_base.num, in_fmt_ctx -> streams[select_stream] -> time_base.den,
dec_ctx->sample_rate,
av_get_sample_fmt_name(dec_ctx->sample_fmt),
dec_ctx->channel_layout);
ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in", args, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
return -1;
}
ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out", NULL, NULL, filter_graph);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
return ret;
}
ret = av_opt_set_int_list(buffersink_ctx, "sample_fmts", out_sample_fmts, -1,
AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
return ret;
}
ret = av_opt_set_int_list(buffersink_ctx, "channel_layouts", out_channel_layouts, -1,
AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
return ret;
}
ret = av_opt_set_int_list(buffersink_ctx, "sample_rates", out_sample_rates, -1,
AV_OPT_SEARCH_CHILDREN);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
return ret;
}
/* Endpoints for the filter graph. */
outputs -> name = av_strdup("in");
outputs -> filter_ctx = buffersrc_ctx;
outputs -> pad_idx = 0;
outputs -> next = NULL;
/* Endpoints for the filter graph. */
inputs -> name = av_strdup("out");
inputs -> filter_ctx = buffersink_ctx;
inputs -> pad_idx = 0;
inputs -> next = NULL;
string filter_desc = filter_description;
if ((ret = avfilter_graph_parse_ptr(filter_graph, filter_desc.c_str(), &inputs, &outputs, NULL)) < 0) {
log_averror(ret);
exit(1);
}
if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0) {
log_averror(ret);
exit(1);
}
/* Print summary of the sink buffer
* Note: args buffer is reused to store channel layout string */
AVFilterLink *outlink = buffersink_ctx->inputs[0];
av_get_channel_layout_string(args, sizeof(args), -1, outlink->channel_layout);
av_log(NULL, AV_LOG_INFO, "Output: srate:%dHz fmt:%s chlayout:%s\n",
(int) outlink->sample_rate,
(char *) av_x_if_null(av_get_sample_fmt_name((AVSampleFormat) outlink->format), "?"),
args);
return 0;
}
/*
*
*/
int main(int argc, char **argv)
{
int ret;
cout << "Hello World" << endl;
printf("abcd");
avcodec_register_all();
av_register_all();
avfilter_register_all();
/* open input file, and allocate format context */
if (avformat_open_input(&in_fmt_ctx, inFileName.c_str(), NULL, NULL) < 0) {
std::cout << "error opening input file - " << inFileName << std::endl;
return -1;
}
/* retrieve stream information */
if (avformat_find_stream_info(in_fmt_ctx, NULL) < 0) {
std::cerr << "Could not find stream information in the input file " << inFileName << std::endl;
}
/* Dump format details */
printf("\n ---------------------------------------------------------------------- \n");
av_dump_format(in_fmt_ctx, 0, inFileName.c_str(), 0);
printf("\n ---------------------------------------------------------------------- \n");
/* Choose a audio stream */
select_stream = av_find_best_stream(in_fmt_ctx, AVMEDIA_TYPE_AUDIO, -1, -1, &dec_codec, 0);
if (select_stream == AVERROR_STREAM_NOT_FOUND) {
std::cerr << "No audio stream found" << std::endl;
return -1;
}
if (select_stream == AVERROR_DECODER_NOT_FOUND) {
std::cerr << "No suitable decoder found" << std::endl;
return -1;
}
dec_ctx = in_fmt_ctx -> streams[ select_stream] -> codec;
av_opt_set_int(dec_ctx, "refcounted_frames", 1, 0);
/* init the audio decoder */
if ((ret = avcodec_open2(dec_ctx, dec_codec, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR, "Cannot open audio decoder\n");
return ret;
}
/* allocate output context */
ret = avformat_alloc_output_context2(&out_fmt_ctx, NULL, NULL,
outFileName.c_str());
if (ret < 0) {
std::cerr << "Could not create output context for the file " << outFileName << std::endl;
return -1;
}
/* find the encoder */
enum AVCodecID codec_id = out_fmt_ctx -> oformat -> audio_codec;
enc_codec = avcodec_find_encoder(codec_id);
if (!(enc_codec)) {
std::cerr << "Could not find encoder for - " << avcodec_get_name(codec_id) << std::endl;
return -1;
}
/* add a new stream */
audio_st = avformat_new_stream(out_fmt_ctx, enc_codec);
if (!audio_st) {
std::cerr << "Could not add audio stream - " << std::endl;
}
/* Initialise audio codec */
audio_st -> id = out_fmt_ctx -> nb_streams - 1;
enc_ctx = audio_st -> codec;
enc_ctx -> codec_id = codec_id;
enc_ctx -> codec_type = AVMEDIA_TYPE_AUDIO;
enc_ctx -> bit_rate = target_bit_rate;
enc_ctx -> sample_rate = sample_rate;
enc_ctx -> sample_fmt = sample_fmt;
enc_ctx -> channels = channels;
enc_ctx -> channel_layout = av_get_default_channel_layout(enc_ctx -> channels);
/* Some formats want stream headers to be separate. */
if (out_fmt_ctx -> oformat -> flags & AVFMT_GLOBALHEADER) {
enc_ctx -> flags |= CODEC_FLAG_GLOBAL_HEADER;
}
ret = avcodec_open2(out_fmt_ctx -> streams[0] -> codec, enc_codec, NULL);
if (ret < 0) {
std::cerr << "Could not create codec context for the file " << outFileName << std::endl;
return -1;
}
/* Initialize filter */
initialize_audio_filter();
if (!(out_fmt_ctx -> oformat -> flags & AVFMT_NOFILE)) {
int ret = avio_open(& out_fmt_ctx -> pb, outFileName.c_str(),
AVIO_FLAG_WRITE);
if (ret < 0) {
log_averror(ret);
return -1;
}
}
/* Write header */
if (avformat_write_header(out_fmt_ctx, NULL) < 0) {
if (ret < 0) {
log_averror(ret);
return -1;
}
}
/* Allocate frame */
pFrame = av_frame_alloc();
if (!pFrame) {
std::cerr << "Could not allocate frame\n";
return -1;
}
pFrameFiltered = av_frame_alloc();
if (!pFrameFiltered) {
std::cerr << "Could not allocate frame\n";
return -1;
}
av_init_packet(&packet);
packet.data = NULL;
packet.size = 0;
/* Read packet from the stream */
while (av_read_frame(in_fmt_ctx, &packet) >= 0) {
if (packet.stream_index == select_stream) {
avcodec_get_frame_defaults(pFrame);
ret = avcodec_decode_audio4(dec_ctx, pFrame, &got_frame, &packet);
if (ret < 0) {
log_averror(ret);
return ret;
}
printf("Decoded packet pts : %ld ", packet.pts);
printf("Frame Best Effor pts : %ld \n", pFrame->best_effort_timestamp);
/* Set frame pts */
pFrame -> pts = av_frame_get_best_effort_timestamp(pFrame);
if (got_frame) {
/* push the decoded frame into the filtergraph */
ret = av_buffersrc_add_frame_flags(buffersrc_ctx, pFrame, AV_BUFFERSRC_FLAG_KEEP_REF);
if (ret < 0) {
log_averror(ret);
return ret;
}
/* pull filtered frames from the filtergraph */
while (1) {
ret = av_buffersink_get_frame(buffersink_ctx, pFrameFiltered);
if ((ret == AVERROR(EAGAIN)) || (ret == AVERROR_EOF)) {
break;
}
if (ret < 0) {
printf("Error while getting filtered frames from filtergraph\n");
log_averror(ret);
return -1;
}
/* Initialize the packets */
AVPacket encodedPacket = {0};
av_init_packet(&encodedPacket);
ret = avcodec_encode_audio2(out_fmt_ctx -> streams[0] -> codec, &encodedPacket, pFrameFiltered, &got_packet);
if (!ret && got_packet && encodedPacket.size) {
/* Set correct pts and dts */
if (encodedPacket.pts != AV_NOPTS_VALUE) {
encodedPacket.pts = av_rescale_q(encodedPacket.pts, buffersink_ctx -> inputs[0] -> time_base,
out_fmt_ctx -> streams[0] -> time_base);
}
if (encodedPacket.dts != AV_NOPTS_VALUE) {
encodedPacket.dts = av_rescale_q(encodedPacket.dts, buffersink_ctx -> inputs[0] -> time_base,
out_fmt_ctx -> streams[0] -> time_base);
}
printf("Encoded packet pts %ld\n", encodedPacket.pts);
/* Write the compressed frame to the media file. */
ret = av_interleaved_write_frame(out_fmt_ctx, &encodedPacket);
if (ret < 0) {
log_averror(ret);
return -1;
}
} else if (ret < 0) {
log_averror(ret);
return -1;
}
av_frame_unref(pFrameFiltered);
}
av_frame_unref(pFrame);
}
}
}
/* Flush delayed frames from encoder*/
got_packet=1;
while (got_packet) {
AVPacket encodedPacket = {0};
av_init_packet(&encodedPacket);
ret = avcodec_encode_audio2(out_fmt_ctx -> streams[0] -> codec, &encodedPacket, NULL, &got_packet);
if (!ret && got_packet && encodedPacket.size) {
/* Set correct pts and dts */
if (encodedPacket.pts != AV_NOPTS_VALUE) {
encodedPacket.pts = av_rescale_q(encodedPacket.pts, buffersink_ctx -> inputs[0] -> time_base,
out_fmt_ctx -> streams[0] -> time_base);
}
if (encodedPacket.dts != AV_NOPTS_VALUE) {
encodedPacket.dts = av_rescale_q(encodedPacket.dts, buffersink_ctx -> inputs[0] -> time_base,
out_fmt_ctx -> streams[0] -> time_base);
}
printf("Encoded packet pts %ld\n", encodedPacket.pts);
/* Write the compressed frame to the media file. */
ret = av_interleaved_write_frame(out_fmt_ctx, &encodedPacket);
if (ret < 0) {
log_averror(ret);
return -1;
}
} else if (ret < 0) {
log_averror(ret);
return -1;
}
}
/* Write Trailer */
av_write_trailer(out_fmt_ctx);
avfilter_graph_free(&filter_graph);
if (dec_ctx)
avcodec_close(dec_ctx);
avformat_close_input(&in_fmt_ctx);
av_frame_free(&pFrame);
av_frame_free(&pFrameFiltered);
if (!(out_fmt_ctx -> oformat -> flags & AVFMT_NOFILE))
avio_close(out_fmt_ctx -> pb);
avcodec_close(out_fmt_ctx->streams[0]->codec);
avformat_free_context(out_fmt_ctx);
return 0;
}
</iostream>The audio file after transcoding is same duration as the input. But its completely noisy. Can somebody tell me what I am doing wrong here !
-
ffmpeg takes screenshots all at once
19 décembre 2020, par oo92I am trying to use ffmpeg to grab screenshots of twitch streams. This is my command :


ffmpeg -i https://stream-link.m3u8 
-ss 30 
-frames:v 10 
-r 1
-f 
image2 
/home/me/Desktop/images/image-dataset/my-dataset/World-of-Warcraft/filename.jpg&


My goal is to take 1 screenshot per second for a total of 10 screenshots. I've added the
&at the end of thefilename.jpgto take these screenshots concurrently. However, the screenshots I get are all the same thing. No difference. The exact spitting moment in all 10 images. My take is that ffmpeg is not listening to-frames:v 10and instead takes 10 screenshots all at once.

I tried to run it sequentially and the same problem happened. So the issue isn't concurrency..


Is there a way I can fix this ?


Output :


ffmpeg version 4.1.3-0ppa1~18.04 Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 7 (Ubuntu 7.3.0-27ubuntu1~18.04)
 configuration: --prefix=/usr --extra-version='0ppa1~18.04' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-nonfree --enable-libfdk-aac --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
 libavutil 56. 22.100 / 56. 22.100
 libavcodec 58. 35.100 / 58. 35.100
 libavformat 58. 20.100 / 58. 20.100
 libavdevice 58. 5.100 / 58. 5.100
 libavfilter 7. 40.101 / 7. 40.101
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 3.100 / 5. 3.100
 libswresample 3. 3.100 / 3. 3.100
 libpostproc 55. 3.100 / 55. 3.100
[https @ 0x560f4b435740] Opening 'https://video-edge-c2b56c.yto01.abs.hls.ttvnw.net/v1/segment/CvEEnTLMdXdKmicT1KsEeYg1j5_ppzV6USTh15nprTzVGZJwL0MnMggHmPmKVCVuec2AugqeIOO45aJMEiH7dUQH1yME6GtL5yH3YDONOR-lj-un-kd99iQtu_DePSfgU47MbqXvI3iw1JKfhgAZVMPQYv_OrwIvXlYdFBTpRQZpFUPVa8dlISmsaT_ypAGJwZYEfcmhN9Ar-yLcPyhTEt4NsP5wzshGwq3IgwY6givcSiKeHRAQ6RzyyYO2ZmnnWXavHM1McEmCbpMk55UU9-NXmtfMPE7Q0jOrkHfPqD8qr4t3-tzRUbNhO7PXa6DgsQRAYICiRxZ0aq5vGIHZD75mOVcl2t9AVNS6R2z5KpvjT24rryxb5mEvebzlq_QMHw83GJtbXv4eCmUnxVObI3idGbYbYkInccc07Yv6oOlUYg804gA6abt_jLFP9jC0tiBjEJIwwb0NJAeuX1YE-b-nL2-qlDWeHY_ZtOvZFCcaeiL-3j2FXIW-mn90bccZMHy1vb1V2tFJEOs5C7YjJ57jh4exm01PGp9ErfFDz--oGc5ZZgvLas3nWz6Imox6yYt0NQ7rZtXyA_6PWtuJBXcqGF7Q5OT4-Eg_m20lc2XuK-hzEZIWU_Pofm33-mXvtjNtXg_e-fkJzIUr4VDNx59cJpbEhS8DhWkqKZgAvQ39rahnpXEkRwt6Se8LH8X4zUU_Fx0k4ApDSGoJGPOJIWlnd8jp_c_8ELQB3lsqx58ppCkiqWtEIZqnkERMNdVJMOPfiJO-wFcStxw214rGr1UgPn-23LlBDOTU7dUnPgN2AYHnL7eggyTliBxGxizGcTjtjRIQpNzpVE-1SqRZ9wgremNhGhoMwxLy-8hlWMju1_Jt.ts' for reading
[https @ 0x55a8b4055d80] Opening 'https://video-weaver.yto01.hls.ttvnw.net/v1/playlist/CvoDrRxumiLM_XBX6zGlLKqZTlxcWMGRJwMy5c0gn038EHoSxU9uBxeTnSk7l8iZ3NDmmtNp2hexUJYQbXh06ClRvm8Vz41PPd2N-k-5GKNIse6MrFrNloxt7p9nEXdXx-8Dw2TofURJX0PloMSiGci_hCnrDJ38BdWg_78f8WFYjZrm5TYnVSDgZw37cFG8FeBJJV2PxF7gEGltrKs7MQ5kbDApHrRFSrYVkbvACCuxbSKZyRB7I6NmKrGVwBZfGLqh9vMXw0_jJAU21qPB9ku459OibJS4JDBTVt4l2MlASp8dhcbTICmLnEBBOIDe7RciSSpqYhq4Hil8TMunMRFc2UdDJS3GjXtw0BApLZMxOf-EXhHJf5f6-ALKEW7FRPsO6JCYQGpspLq2snUKuWqj9UBcLHnGjjY5cUHjvui81aalyz5fcDZK-pxUFhCZucpOxCDDYhfSLABqmM3eIentP8hlcwZg0ydy419Tj2lqI08ug9PUFBlMJWWcuwck5uIGIOshQVNEDIXJt_PJKao5dSgMGZzsIEUPi6Rlf2yUk7z-adjtADJjOzBzNV6QKtS00BiFTvbbYjiLydJffAEgeerVOG0_tkHZopfYmpJsp43Sr-hXTAk2cYSMIN__NqO7qAJzTF1rWXkeAo3wuWPz2mICJOSdq6SfSL0SEKb7mHVzjUerNSPqt7ZHWBYaDAeIk7sXJ_-6ZP1wyQ.m3u8' for reading
[hls,applehttp @ 0x5559d4ab0940] Opening 'https://video-edge-c2ab34.yto01.abs.hls.ttvnw.net/v1/segment/CtwE4wYV6Jd9ji9SF4DQupaPzeu0nawqExYayXT0VS3D-AgoiiuciSxoAUXEKj1TsevSSJHWs3AdkMaTZs_rYrXkKhvA8xgq_Ojp7MmrYrgDZi_vZSfoIWBLdpNN8RN8ISUtPOXWpRM8hZvgQOI00EKSlvcZoJ44OoZfvVQaN16IkjiP1K7TdrbiG_W43yYo8W3wrprTrI-gSK0yQdDYK58ROKuXwsWra6zJp1DTJLTV8L4u3ClJoDlBaoYSMEwnEVs_p7gBpNw9rn66mqtsGn_vCMBfoqrsUfCEem7cFvC3ph1iqfubbIc5LSkRdHekoYHDualvn-ScmkCBLMXn6U4SeFdSRrElMz2mgJM0t7DA6PEzz_SEh1harsM19_Z9REoIwWr1tzHWFU4WgTWrDbylsV2i11rBqAHWlk5_V8fP4CIFhiWyfxp8G_j1nmy1z-tC8Ttln6KkMFcGlvWR6tsPr4hUtPvrY6m05FMYfsmvDJVJhW8fFAppcVfPyGFMqQ6GRPo0CMrENqkIENTvMjQJt2GEyw8GOECucYWIbuhCOLLW0dyz-iJlVNYvObeGue18U79sneEAkjoxJuxDI61r5hOMwf3HXpSIUpk2sOzfjcded4KbvMjgIQxK9M-2qnmTkyfV756rGaT_9SrugKiZUdh_vOy9lDwFPN2GYq6P6Vcy4HKpM0ZCR2AMTe3PFXreDraCzfrmzwRULBG9AiNxs-JhYJ3_w-OSBhzbINJng-PwFnL9Dsm87NIYvc_CRUWT5jkJHws8BpzSJtZCXcZ3XgYGDe49balTzhB8VBIQIFWcbgO26YM0po0CxgZLiBoMoN25nK5P9U3FecXL.ts' for reading
[https @ 0x5602e5468a40] Opening 'https://video-weaver.yto01.hls.ttvnw.net/v1/playlist/Cv0DvhMhaY8nQyvgCVb8Knpnq4LS_QdntEu9nstdrurt6Vtc57dIoii04-Kau7quO62wCXKso-x4719ws7inztepZcc7sWrfbDuDCqL_D41hxTa1fJnZp8bdtEPU7dKIk7coJvUw7foVkVkoA6KkZF5BTSpzOL-9BAWdsIFAZ82dC9LziZCno-7j4_77jbCfSOdZdliNsHjwJkbeal9sp-JJB7sesAvRhT8Jdb6-6m_I1kOawK_NxzS4NBP7SlXD5wSNnSD_Y9TvInwhqC1Q09EqcpYP3JmDZwVTX0ld7vzcW2jsiLA48EOv62ji2Q99PdosWX23ZTH335v1AdQ0iX2nX4G0rNMdGJ5dYzAUezfiH0gFaIiQJmBo1WlFh45BrOqlB4VMQuhDZ47hJTHDOv2qcn9PmvO6N6ENj5A5FJuRbvjVfe7mUrNjaKfb5za7qmQ1usdRhxxl7srRF_Y1fnMLfIMuQw1gMRQAkISYP1Ism4pv4blEu-5td3C2JteGadUaczx8ZLSnWTJQwTJ_o8PzzYaVW900EU0kZuiQ6RgdpJmc3UYrLQ-OUxoudkt4GgjuoSHl8qCiP8nIwSvXnbGg1CH_mCBv_kiuWygbLrY9YVGz3wS67Dn7D6hNJ1tKmK4FP2I5UKasBX4qvqdGAnMhKKqbsITunYuSqgeGNxoSEEuS_9Sp0pxjnKpSOikkMZQaDL8_ZLSngkCEdWFBsg.m3u8' for reading
[https @ 0x561509d623c0] Opening 'https://video-edge-c2b644.yto01.abs.hls.ttvnw.net/v1/segment/Cu8ENRC9AI5iVzpgoEk2vmbOSFnED42oE5UOg4w4bYv_9bGEfbiubVy80d6REOQe0pV8xCdDMNxUGEpzMh_utuxCuvoCDIA5GwCPBI-wNINQ0yaERpzyMLzLzI8X5Qw6ps2MO_G5FeX08aPup3-ngBd-yGSZDzuQgBvMoxGI3ANZ-VEy-EmHZx5P7MbpYQUZ7jXO5ZzMZH5dcc2fCtU8Fhn3rudz2Z17a7PISmdN7IqGpWIgk2XZ7k0RG4Xq71wNZzfiKu78MAs-DkdBa0L3fBvIqFNS47tEU7YJ257Dk4K4tHnoMmVprTpleM5HdkBs9b6KA9n8YOfMSi3SLLaA49fixyoYlAGPu5lXSDflXKc4ffChFnPOUHz0Pcb-hHwiYy7KJtMG_ItInI_LZt3Q-qiKOnO_PFTkBjKUjYoZyRvvD8yb2gd8BbwaF7xpOG206QO_nNASoWyqDk7B4fyyARVUD84pPuo3E06FjYDeioH2FhGU0Yyd8MXhWTawa5KKgA0TqoP9Dt_TRz9xHuPFMJWBo39GuDGqofa0yCriDsPZQJg4evm49d-1yAd4NePMmHuC3mY76ojx9Tc4zW3tSo1c-8FdGoy20X4DK911JgMZZcAjj3fbudnk1Gpg52qixw2PTo_81xj6dO6r0EOddK9o-BDDQ9u-MoRVtodGOmdtjNlurC4nXYjyJxomkqgBSh3RrYcc0ZotEYPbBN6oW2HjOLCMtkajuvov_Z78wnO_0-VTn6Z4QIJHhzhFdwpRv7sBrwCQoZJf12lg9mTyDvn-zvmYpEqlpSx2zUAZJf1RY1nHVpSjsWgKb47sVZHPnpMSEHa5MFbY5k0uJLxysEuJjCQaDEvCUfXIcwtNL3l9JA.ts' for reading
 Last message repeated 1 times
[https @ 0x55ce2ebdf1c0] Opening 'https://video-edge-c2a4ec.yto01.abs.hls.ttvnw.net/v1/segment/CtUEspzXywhKD--is2mZ6lL0j5XqcvMtesaiCc06h1S2IcnmlUxRP1Rg9qT-wcqbftcpAr5DqtE0o-qFAr-bxrl8TRjAbNT-2qzZ7BJLAXQ-Q6Pl5Otv1haFvbdYN7H7Dok0SFJoE7rKXIwXyTy_KIIp7AsBdvlLN2vxG-mc-v1SynWjaXQ-ehgiG_5Tde_dVQo9wWBA44SuM7yGh-eQwl4KoM7R6XrwdZ2-xnsw-9cVsZvZNpcBAIJecAUqHcSkNsjTy3UGtN2lJHM-Ryfy9oT4Q-fOnuWj98DqkWIVVGvM3pHdN6RXWpc7GG-zCbuE-4EohTGfgCwvWeWPps4HDpOuJjwOYTRuBe6SnN6TT-nT-c5-QaZHhnKulixMLjzDQQD-MJGYKjFhv7DwfWL183RYOh20PirZnmMxxfbDmZC8PFHGOKqZ5K-1Fnsm6PyHtNOutlB6-kENTuXIEpYMrD30AV2LKFctHb3a_HY3lkAPqCbeYCtP2GZn6sV9cnPNZqN1YReu0BPvcVvMxM2tLo-iYl2dVksTho1QfIHZY7HYhYfUXk5Z_lw6M3XSgCFwC853tfbEIdPF2grF9FsJJzxhiIwl83rxsRAKRSNa2ikYYKzwOyQ0O4i-gcCXhAe-OrO9ZM8kd5OcVAe8XMWwRdEwYg0qTrerebQzoSm2Xy88cL0unGDZhZWRWxLjxNWAfLOYPT5Kp2QKK44YkwdKJxWgXTAXiNe2u89StyfyeFxHHdVrh77W-jLHKtOJs_TqtYVavu8-i_ltjstw_Q64kckKMFXCKBlSEhCCynQIIIrDLZki-ratekOHGgwhQO0qQG1pCWiaesQ.ts' for reading
[https @ 0x5602e4b9e1c0] Opening 'https://video-edge-c2b1f4.yto01.abs.hls.ttvnw.net/v1/segment/CsMEmSWiHUi9qiWeeVziTCwieY_8ABpoaUI2uCB_Y48jHDMEB9OH_mmlfnR9-gHHPyF6dZCdtj4xqgCrgu3Rx4GtZ5UWEPd1VPv-WBUPL-YxskwN7ZpwwiJ-OT_8A5ty6K3s57s0piPK97044lYfE_sKJtelKHix26WOr6qcbkt2voyPWRH_jok7eQuG-y2xfJOmIu5-1TqIaG0IepiqVvfDAaAReHOu_jId0roBGse2q6vcWMrB4MX6TCH3foLxm_1XcQnD4G4mwRN1BdSbhdOKkOv93kf8u-KYS1wCTb_vz05EBmINqZbtOYgkWd0NRuRyMwVg8pnI7qMQZzO-NZuxmAIRR1aEZvaciughFgcGgJzczkqQ8lo_5m8MMzojjuUbPvwUAOynjmpKBPTpry2Fp1O4R-vPQJUqrPvIRMwTFevQVg_mcqAVSoH2uKprkatLWJs_Km9WBR3pDkcGK8J_foVe0Sk-2N4X-IUzBRpKt6RZltl_SF5hzX2ciZoMQdlZN0srlcZg8oiW5B8ou0liBPD_fLoVxj0PG9cj5j9cEWxkDdwx54u0hE0fW-HKk5CXcIuXpD93iruqdLyG6tcPyp247S1rJ0XSq0GwEmAqZSY5s-YIGu5o2HZuQmL214HgnCN1plLZqZ4zdFJHSW9t61C3_tM_-IiFrQ1_BIltiqYsPTW_EFmaNvty9FvHQFx0XdGbBq1bv9pp6Bj_EtT0qukTSkEH8EBDhJGYFYWDfvG7Tn2-zW2HXIIarIgR7xRscE4fEhCVgyfim5444ACROhoPPx_rGgwlXw1up2iUzAYgbaw.ts' for reading
[https @ 0x5602e4b3b9c0] Opening 'https://video-edge-c2b1f4.yto01.abs.hls.ttvnw.net/v1/segment/CvIEWgSaqH8uzWG7t10EwAuefWhmLnNnXtN7Pw6-8eiisUARX4pH-v1I3oLUhOukV3svmhCp1XxQN-UkZx8_m6sjxa3ntRmA6ImIDlbBEVuxZ4lGSMlw4G-cuC44L9xlgCjMSTZcEZa6WYCBRToWx6g2AaA2u3Gf8rZ0JpFmWAee8X0K2s9OH1CcQvfR1RofszXRu4aQSd-v6cniMyIpPpjAZixHLQf_Adyf9Iuvws8ybtiV2llhT6x8dRvvh6S5n2XzlsxC9sihjOnNc_dhav4jlSeHHUJPqh36n0Ea-asPjzNBOCJrnNxLcNgItgeI6qVs9iD8shU50RlLoBNtgNycRy_ZgQ6vBR0k9hApi02qb1BKFOhIsWGvCi7NSknqnr3vhObWvl-fIGWKRNAsU7uc9aZet2btaUb900j2Vaau-77AlbvnyAqpL0Di2KR9ybHDNpUZsVzZh-reW3uKu-pAkIEKkzI5rDP7-H9QaK73nnB3XuSK_H-x_WF7qrcgAd_0XTqcrnEtPLDzD_2H4aZxdglqDQyxanhq3cFXf-qa0ux3ZilLQMBkzjZlFsNOT8ms9kfpC7HG7B_h7AIiDnu8EoIDKBQlxfzYG6ruQACGZoVFE3MiYEqgnpFzKsAWx1jujCV_h5Jogv4kxnrvzDtzwxWXsyrwo3gUTeTrEu62Mge6T9GRGE8Ny7q7L8Ng5d0FDAM1mSDFsuwaleGQDndIMa3J6TODcfI4gL1Tu1aEUSen1gWSRcUy1uQyQQ9zJSmc7Uaw8uMLyP3BzadJm51c3MoNTzLBsvktjhd3B2KHbWY1lXEh2AHA16VGWXpq7CD0ELMSEN1fF4x7RWpFxubjbxVNVv4aDCwwPCpEeEggW8Rfpw.ts' for reading
[hls,applehttp @ 0x5559d4ab0940] Opening 'https://video-edge-c2ab34.yto01.abs.hls.ttvnw.net/v1/segment/Ct4EMOLp6yFfEv2tgPtzLuzFmDFWtPkvqlBMyma5AlNsAFNWM3-m0d5Wm_DmdvMETEeVjPcGk1XEOcnfkHTFnGKsPn9rmqNNyWmXQp8jH1k5LGjiHTYVO8pa-6CuCMb16fGy9Fp1Xm0nXqLe4ZL0Fs6EV1-U2UfVyOqNFjcvwoAiE9cQyBUxmj9h1Tlo5kHsVd1TxtYRrHZs3sQepHkwLIDVSThuy-RKU-9oARCTfOP6USEgDpxkbWjtB-DGTUorX8x95mlCLwDMkmkM2-m9pUYdeP-PslZV1-IJPOVv4-G97PsV-TqQy1szQh_k9jiQzp_Bu8wB5RrVqdpMqli5YRMoqOmGCQo0i41g8y1Y-JZVF3JmK7G2SJ7MgdLEFaEaUBNz4XW6aGV1kL16E3PMRKqaYKoS21vwQP0E808fYr_0KrUhpQzzxPHKMKNmhX63S3O80FcH3GVmzlm0dXdVSEXV1TepsZG5NHqR7xgQt_WsjV21EuWCzGTpbrqMfCIH0nrlyowYpZm1ew3qREq1SfKPt4TophGYJRHjMD7B5loycfp2XjCyDmOX6cTc8RK7lQg1F6uukU_aW_Z8hbBuVbY8sqroms8ajmZETP3uo9VG6JFoJaNxDfMtplI10JMFHbBp0VZdRtaxxaPCQ3BBmWgl8vLckHjcY44JE_PDALwIHkQqecZo2GQoz2NhymilntSt_VFMm3Ib6yF_fujjwtafU7Xh5Cf9MBnk-IYHg2WZYLESPVB2Ia8jhkqFiHgYR0YLLLl_mflwBh6mFzSozfT4mw4_FK_esvspE1Zq80CEEhDxl0J0i39gKAbxRh87tVrkGgy0aNClJH41Wuni7yE.ts' for reading
[https @ 0x560f4b3d29c0] Opening 'https://video-edge-c2b56c.yto01.abs.hls.ttvnw.net/v1/segment/CsUEh-QaugK4bHVvi-wL8bzgE5-MsFiYcWoTXcwI-gzFEPycSDGrrqCPSAyov1gQsy2KYKm6Odcenh_UHBDJgG0dfHGOB9izlOatI3dONn14Z5BzKoZ84JntuWvM6ZfbaCRHZQFvHDJLwUAB_RZweqDHLnCwZr52Ma--xNhWaPoHfBBz_fGb23iSRFigxMjPEe-48lpQaF-XD9UPwjNx9Jkn6d0xNto7yCkLnPHVAMc08rI6ciMMFvU3Ul2p64VBhCzQhmweVuMmymRsw92BCEk3gAUYL7i_cYbJk1ws9kI6OHJlrZJmSgELoM7Zr6HKTxyWRsS0CfPqEUz0ZNgkxULIj9pjcPmuTZOWPtRhRGl1T0xZzo-OMcTOaVLV88rpiSVugoBVD8gBLCOxfAp0vBrS4_4daWeS_9RpmkKnwwfJk2yr6vvty2lEMKRE7oTDqy_ldgPequXbA89hX29SX8rxqUQr8OTtS89J5nhgPVQ3U6kcXsAMY1wGfZWMK2x2OO7drkKby3W2enhmMTcSzki7h2gJGVVSsfhs0OH2brSM0GCsYyJXMog_6bdP_CnusgyE2_aDW6sWCp-EZuKxSsLnTJohcNzlSqAxmR-xEMZwESiH_kUs1G-4rWZYgn2-fDAcRx8sSUkcmXKHlf-cU4WRa6KMi6XWi14ag_u4QeovJH5CB5kLnLmW0SyERfvwYlNOrsx5pD4AV_Rs3ENQU0S3pLkF0yhP8yZRwwhaAgcmfZQd2r0q_idRWFNl91pV_mJjp9tXgoYSEIWei-BAQVPqD4MP5qlkY4IaDGIUgwHWb2hkYmELMw.ts' for reading
http://twitch.tv/fleeceking
Input #0, hls,applehttp, from 'https://video-weaver.yto01.hls.ttvnw.net/v1/playlist/CuwDB7kg-rOx72I_T4TigQrbopLHvPc81zIoRat4x_gQcFkNXwclpj4t85zVFcLvU1InuO74I__WzB0KJjTt-5Zz0-tYb4sjEKTP_KvAbYVJQlEdWoYLqI8qiQatuZ1xR452s0-SNKWZNElN-lQmsf6v0woji7tmMrTcNCbD5lkeUGbZGHREtJyY5POK7fjEQ7sBTXxdU3zZSOTXemXHa0OMMzkOJ4NDnebAbpS9VIwG5Rmp8YFwGgwnA3qzF3dOulpeMHcdfUzuaiv96ySbnCoC3tdDWx3J7f862vMQ1O6yUbMiIa6n3id0xUr6oU63zM2QvxHYJAGZPvaXHEjwV4W8QX3db5RHHfPDVUOyQm8MKVsPlpt9nGhZ_4fPggOfBtJhuFS1apLRduVVu2w3jcoKbtubgwCUKBMQ5TS4cjQs52Ii83tPtZRVrmThN6MPlLlmwh_1CUS0qxZBlrpxLjGJjTfJJGTXLlR3DeO4J-5jNQq4yH3gzbKpmG1GwlQA9ulbBm2oexGUw03UCLjsroh32vyZbM7yDux9_w0v0FoXp8oo-beCssfLdS4OPkMe1lb40k42bDjB-FhwuI5ssd9GmXu1cjNen9GzbQI0HegaxOpZy54FZa3K1HB0TZbWsKIZ06F9rUlDbEF5Dt5xEhC2FzGsH16e1iZMLqrjwH3KGgy31QJgMBmysrogh4A.m3u8':
 Duration: N/A, start: 60.000000, bitrate: N/A
 Program 0 
 Metadata:
 variant_bitrate : 0
 Stream #0:0: Audio: aac (LC) ([15][0][0][0] / 0x000F), 44100 Hz, stereo, fltp
 Metadata:
 variant_bitrate : 0
 Stream #0:1: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, unknown/bt709/unknown), 1920x1080, 29.97 tbr, 90k tbn, 2k tbc
 Metadata:
 variant_bitrate : 0
 Stream #0:2: Data: timed_id3 (ID3 / 0x20334449)
 Metadata:
 variant_bitrate : 0
Stream mapping:
 Stream #0:1 -> #0:0 (h264 (native) -> mjpeg (native))
Press [q] to stop, [?] for help
ffmpeg version 4.1.3-0ppa1~18.04 Copyright (c) 2000-2019 the FFmpeg developers
 built with gcc 7 (Ubuntu 7.3.0-27ubuntu1~18.04)
 configuration: --prefix=/usr --extra-version='0ppa1~18.04' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-nonfree --enable-libfdk-aac --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
 libavutil 56. 22.100 / 56. 22.100
 libavcodec 58. 35.100 / 58. 35.100
 libavformat 58. 20.100 / 58. 20.100
 libavdevice 58. 5.100 / 58. 5.100
 libavfilter 7. 40.101 / 7. 40.101
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 3.100 / 5. 3.100
 libswresample 3. 3.100 / 3. 3.100
 libpostproc 55. 3.100 / 55. 3.100
[swscaler @ 0x55ce30ae93c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x5559d60827c0] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to '/home/onur/Desktop/stream-hatchet/streamhatchet-logorec/logorec-dataset/Hearthstone/39909606413_1608336776_%03d.jpg':
 Metadata:
 encoder : Lavf58.20.100
 Stream #0:0: Video: mjpeg, yuvj420p(pc), 1920x1080, q=2-31, 200 kb/s, 0.50 fps, 0.50 tbn, 0.50 tbc
 Metadata:
 variant_bitrate : 0
 encoder : Lavc58.35.100 mjpeg
 Side data:
 cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
frame= 10 fps=0.7 q=15.9 Lsize=N/A time=00:00:20.00 bitrate=N/A dup=10 drop=1 speed=1.36x 
video:1108kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[hls,applehttp @ 0x55cf64902940] Opening 'https://video-edge-c2b1ac.yto01.abs.hls.ttvnw.net/v1/segment/CuwEUt6AwX7y0HJIK0gOgU5pOMXzfQyF3Pc26fGLIUKOngj0g1IFk_XeZucFgCMpYYYDlwf7lEN_XzEnaUN5-9qXva6W4DHtPAlRgWK73aytjJWh82d4qhfMVdqwiwdtHkNBU1WhEeVbWtaAkTcMbXMeghf8WFdcGmHXs2ZGgexZxMS7VVxS39WETlXWLDd7MFxXIu-9upX2NRiu4CXW-XKK4OIMJ86lFy1VARNMG9JUPMGFCZsoNOh5dNe8uFNAnBub1KPP30z3va-IrmhDBi49Ab7pcYhhnXkLUoSwETFq_ZdTHbPLLxR21kXxR6KrWEPrHFPH4xW-zfiNGDmzNS9s91mSDj4UiqhwU00jThtmSBjOlfJzXeKuE80GfnfBneYpsMpSmPQj8mN_xQ771-aQBPlnL3XUdMFk-pVvjaiFUPOnqRiLsU6wuKldwSPhEntkmufP8VgtFYZOWDDlD4-s0tgHC8tu5eKf9zaQLIe_lmKv6lOgwaO2XJsqERijJQ1wOwq9otQYF4kBRp_I-yaJS3azB0JDqFrEZvRAQqP9xtiEzkeJWBvFrwsneuKdMNMX8IXqSA1pM0zyJ_kd4IfZMdl5-4Hs7bzLgyqPlbphh2bkOQ7OnIXt1Hx7P4MkucOvFcWVA0jf89BGMGzrGKqjmIRuLtyM1wRVxWFXj3EakEIIx3yQoqCrd_WBAN-V5Xn4gvRn1MKyn_xQCFrpw4kO7eIYRFzO63askrPWo3GqyMPR5CYq0x8KuydUVlI19BzUCGiWoAlQhqLWAjG34EtIwlWhTaDRWVzUnmsG2S5XYFGCDWyCnAIZaRih3iwSEF7dzzIbAkAaukPxE1UWqNIaDFdi5FCo6z74AhwmPQ.ts' for reading
[https @ 0x5602e545fac0] Opening 'https://video-weaver.yto01.hls.ttvnw.net/v1/playlist/Cv0DvhMhaY8nQyvgCVb8Knpnq4LS_QdntEu9nstdrurt6Vtc57dIoii04-Kau7quO62wCXKso-x4719ws7inztepZcc7sWrfbDuDCqL_D41hxTa1fJnZp8bdtEPU7dKIk7coJvUw7foVkVkoA6KkZF5BTSpzOL-9BAWdsIFAZ82dC9LziZCno-7j4_77jbCfSOdZdliNsHjwJkbeal9sp-JJB7sesAvRhT8Jdb6-6m_I1kOawK_NxzS4NBP7SlXD5wSNnSD_Y9TvInwhqC1Q09EqcpYP3JmDZwVTX0ld7vzcW2jsiLA48EOv62ji2Q99PdosWX23ZTH335v1AdQ0iX2nX4G0rNMdGJ5dYzAUezfiH0gFaIiQJmBo1WlFh45BrOqlB4VMQuhDZ47hJTHDOv2qcn9PmvO6N6ENj5A5FJuRbvjVfe7mUrNjaKfb5za7qmQ1usdRhxxl7srRF_Y1fnMLfIMuQw1gMRQAkISYP1Ism4pv4blEu-5td3C2JteGadUaczx8ZLSnWTJQwTJ_o8PzzYaVW900EU0kZuiQ6RgdpJmc3UYrLQ-OUxoudkt4GgjuoSHl8qCiP8nIwSvXnbGg1CH_mCBv_kiuWygbLrY9YVGz3wS67Dn7D6hNJ1tKmK4FP2I5UKasBX4qvqdGAnMhKKqbsITunYuSqgeGNxoSEEuS_9Sp0pxjnKpSOikkMZQaDL8_ZLSngkCEdWFBsg.m3u8' for reading
frame= 0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed= 0x 


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