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1,000,000
27 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Demon Seed
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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The Four of Us are Dying
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Corona Radiata
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Lights in the Sky
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Head Down
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Sur d’autres sites (11076)
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libavcodec : ffprobe on file encoded with FFV1 codec reports "read_quant_table error"
20 novembre 2016, par Ali AlidoustI’m using the following code to encode a series of frames into an mkv or avi file with FFV1 encoding :
HRESULT Session::createContext(LPCSTR filename, UINT width, UINT height, UINT fps_num, UINT fps_den) {
LOG("Exporting to file: ", filename);
AVCodecID codecId = AV_CODEC_ID_FFV1;
this->pixelFormat = AV_PIX_FMT_YUV420P;
this->codec = avcodec_find_encoder(codecId);
RET_IF_NULL(this->codec, "Could not create codec", E_FAIL);
this->oformat = av_guess_format(NULL, filename, NULL);
RET_IF_NULL(this->oformat, "Could not create format", E_FAIL);
this->oformat->video_codec = codecId;
this->width = width;
this->height = height;
this->codecContext = avcodec_alloc_context3(this->codec);
RET_IF_NULL(this->codecContext, "Could not allocate context for the codec", E_FAIL);
this->codecContext->codec = this->codec;
this->codecContext->codec_id = codecId;
this->codecContext->pix_fmt = pixelFormat;
this->codecContext->width = this->width;
this->codecContext->height = this->height;
this->codecContext->time_base.num = fps_den;
this->codecContext->time_base.den = fps_num;
this->codecContext->gop_size = 1;
RET_IF_FAILED_AV(avformat_alloc_output_context2(&fmtContext, this->oformat, NULL, NULL), "Could not allocate format context", E_FAIL);
RET_IF_NULL(this->fmtContext, "Could not allocate format context", E_FAIL);
this->fmtContext->oformat = this->oformat;
this->fmtContext->video_codec_id = codecId;
this->stream = avformat_new_stream(this->fmtContext, this->codec);
RET_IF_NULL(this->stream, "Could not create new stream", E_FAIL);
this->stream->time_base = this->codecContext->time_base;
RET_IF_FAILED_AV(avcodec_parameters_from_context(this->stream->codecpar, this->codecContext), "Could not convert AVCodecContext to AVParameters", E_FAIL);
if (this->fmtContext->oformat->flags & AVFMT_GLOBALHEADER)
{
this->codecContext->flags |= CODEC_FLAG_GLOBAL_HEADER;
}
av_opt_set_int(this->codecContext->priv_data, "coder", 0, 0);
av_opt_set_int(this->codecContext->priv_data, "context", 1, 0);
av_opt_set_int(this->codecContext->priv_data, "slicecrc", 1, 0);
//av_opt_set_int(this->codecContext->priv_data, "slicecrc", 1, 0);
//av_opt_set_int(this->codecContext->priv_data, "pix_fmt", pixelFormat, 0);
RET_IF_FAILED_AV(avcodec_open2(this->codecContext, this->codec, NULL), "Could not open codec", E_FAIL);
RET_IF_FAILED_AV(avio_open(&this->fmtContext->pb, filename, AVIO_FLAG_WRITE), "Could not open output file", E_FAIL);
RET_IF_NULL(this->fmtContext->pb, "Could not open output file", E_FAIL);
RET_IF_FAILED_AV(avformat_write_header(this->fmtContext, NULL), "Could not write header", E_FAIL);
frame = av_frame_alloc();
RET_IF_NULL(frame, "Could not allocate frame", E_FAIL);
frame->format = this->codecContext->pix_fmt;
frame->width = width;
frame->height = height;
return S_OK;
}
HRESULT Session::writeFrame(IMFSample * pSample) {
IMFMediaBuffer *mediaBuffer = NULL;
BYTE *pDataNV12 = NULL;
DWORD length;
RET_IF_FAILED(pSample->ConvertToContiguousBuffer(&mediaBuffer), "Could not convert IMFSample to contagiuous buffer", E_FAIL);
RET_IF_FAILED(mediaBuffer->GetCurrentLength(&length), "Could not get buffer length", E_FAIL);
RET_IF_FAILED(mediaBuffer->Lock(&pDataNV12, NULL, NULL), "Could not lock the buffer", E_FAIL);
BYTE *pDataYUV420P = new BYTE[length];
this->convertNV12toYUV420P(pDataNV12, pDataYUV420P, this->width, this->height);
RET_IF_FAILED(av_image_fill_arrays(frame->data, frame->linesize, pDataYUV420P, pixelFormat, this->width, this->height, 1), "Could not fill the frame with data from the buffer", E_FAIL);
LOG_IF_FAILED(mediaBuffer->Unlock(), "Could not unlock the buffer");
frame->pts = av_rescale_q(this->pts++, this->codecContext->time_base, this->stream->time_base);
AVPacket pkt;
av_init_packet(&pkt);
pkt.data = NULL;
pkt.size = 0;
RET_IF_FAILED_AV(avcodec_send_frame(this->codecContext, frame), "Could not send the frame to the encoder", E_FAIL);
delete[] pDataYUV420P;
if (SUCCEEDED(avcodec_receive_packet(this->codecContext, &pkt))) {
RET_IF_FAILED_AV(av_interleaved_write_frame(this->fmtContext, &pkt), "Could not write the received packet.", E_FAIL);
}
av_packet_unref(&pkt);
return S_OK;
}
HRESULT Session::endSession() {
LOG("Ending session...");
LOG("Closing files...")
LOG_IF_FAILED_AV(av_write_trailer(this->fmtContext), "Could not finalize the output file.");
LOG_IF_FAILED_AV(avio_close(this->fmtContext->pb), "Could not close the output file.");
LOG_IF_FAILED_AV(avcodec_close(this->codecContext), "Could not close the codec.");
av_free(this->codecContext);
LOG("Done.")
return S_OK;
}The problem is that the generated file is not playable in either VLC or MPC-HC. However, MPC-HC reports following info in file properties :
General
Unique ID : 202978442142665779317960161865934977227 (0x98B439D9BE859109BD5EC00A62A238CB)
Complete name : T:\Test.mkv
Format : Matroska
Format version : Version 4 / Version 2
File size : 24.6 MiB
Duration : 147ms
Overall bit rate : 1 401 Mbps
Writing application : Lavf57.57.100
Writing library : Lavf57.57.100
Video
ID : 1
Format : FFV1
Format version : Version 0
Codec ID : V_MS/VFW/FOURCC / FFV1
Duration : 147ms
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 1 000.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Compression mode : Lossless
Default : Yes
Forced : No
DURATION : 00:00:00.147000000
coder_type : Golomb RiceSomething to note is that it reports 1000 FPS which is weird since I’ve set
AVCodecContext::time_basein the code.UPDATE 1 :
I managed to set the correct fps by setting
time_baseproperty of the stream :this->stream->time_base.den = fps_num;
this->stream->time_base.num = fps_den;VLC plays the output file but it shows VLC logo instead of the video, as if there is no video stream in the file.
UPDATE 2 :
Cleaned up the code. Now if I set
codecId = AV_CODEC_ID_MPEG2VIDEOthe output file is valid and is played in both VLC and MPC-HC. Usingffprobeon the file with FFV1 encoding yields the following result :C:\root\apps\ffmpeg>ffprobe.exe t:\test.avi
ffprobe version 3.2 Copyright (c) 2007-2016 the FFmpeg developers
built with gcc 5.4.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 34.100 / 55. 34.100
libavcodec 57. 64.100 / 57. 64.100
libavformat 57. 56.100 / 57. 56.100
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
libpostproc 54. 1.100 / 54. 1.100
[ffv1 @ 00000000006b83a0] read_quant_table error
Input #0, avi, from 't:\test.avi':
Metadata:
encoder : Lavf57.56.100
Duration: 00:00:04.94, start: 0.000000, bitrate: 107005 kb/s
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv420p, 1280x720, 107717 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 29.97 tbc -
LibVLC DXVA2 Windows C++ Hardware Acceleration
15 novembre 2016, par Sergiu VladI want to decode a h264 RTSP stream using DXVA2 Accelerated decoder. In VLC it does work but in my code have the following output :
avcodec generic warning: threaded frame decoding is not compatible with DXVA2, disabled
avcodec generic debug: available hardware decoder output format 61 (dxva2_vld)
avcodec generic debug: available hardware decoder output format 128 (d3d11va_vld)
avcodec generic debug: available software decoder output format 12 (yuvj420p)
core generic debug: looking for hw decoder module matching "any": 1 candidates
core generic debug: no hw decoder modules matchedIs this a problem with NV12 conversion ? Is there a way to force DXVA2 ?
Thanks
CODE :
#include
#include
#include
#include
#include
#include <iostream>
#include
#include <ctime>
#include <vlc></vlc>vlc.h>
// RTSP address
const char* rtspAddress = "rtsp://admin:admin@192.168.0.245/live_st1";
// Video resolution WxH
cv::Size rtspRes(1920, 1080);
struct VideoDataStruct
{
int param;
};
int done = 0;
libvlc_media_player_t *mp;
unsigned int videoBufferSize = 0;
uint8_t *videoBuffer = 0;
void cbVideoPrerender(void *p_video_data, uint8_t **pp_pixel_buffer, int size)
{
if (size > videoBufferSize || !videoBuffer)
{
printf("Reallocate raw video buffer %d bytes\n", size);
free(videoBuffer);
videoBuffer = (uint8_t *)malloc(size);
videoBufferSize = size;
}
// videoBuffer = (uint8_t *)malloc(size);
*pp_pixel_buffer = videoBuffer;
}
void cbVideoPostrender(void *p_video_data, uint8_t *p_pixel_buffer, int width, int height, int pixel_pitch, int size, int64_t pts)
{
// Unlocking
//CloseHandle(hMutex);
}
//static void handleEvent(const libvlc_event_t* pEvt, void* pUserData)
//{
// libvlc_time_t time;
// switch (pEvt->type)
// {
// case libvlc_MediaPlayerTimeChanged:
// time = libvlc_media_player_get_time(mp);
// printf("MediaPlayerTimeChanged %lld ms\n", (long long)time);
// break;
// case libvlc_MediaPlayerEndReached:
// printf("MediaPlayerEndReached\n");
// done = 1;
// break;
// default:
// printf("%s\n", libvlc_event_type_name(pEvt->type));
// }
//}
clock_t startTime[8];
int framesReceivedThisSecond[8];
int main()
{
// VLC pointers
libvlc_instance_t *inst;
libvlc_media_t *m;
void *pUserData = 0;
VideoDataStruct dataStruct;
// VLC options
char smem_options[1000];
// RV24
sprintf(smem_options
, "#transcode{vcodec=RV24}:smem{"
"video-prerender-callback=%lld,"
"video-postrender-callback=%lld,"
"video-data=%lld,"
"no-time-sync},"
, (long long int)(intptr_t)(void*)&cbVideoPrerender
, (long long int)(intptr_t)(void*)&cbVideoPostrender
, (long long int)(intptr_t)(void*)&dataStruct
);
const char * const vlc_args[] = {
"-I", "dummy", // Don't use any interface
"--ignore-config", // Don't use VLC's config
"--extraintf=logger", // Log anything
"--verbose=4", // Be verbose
// "--ffmpeg-hw",
// "-vvv",
"--ffmpeg-hw",
"--avcodec-hw=any",
"--sout", smem_options // Stream to memory
};
// Launch VLC
inst = libvlc_new(sizeof(vlc_args) / sizeof(vlc_args[0]), vlc_args);
// Create a new item
m = libvlc_media_new_location(inst, rtspAddress);
// Create a media player playing environement
mp = libvlc_media_player_new_from_media(m);
// libvlc_event_manager_t* eventManager = libvlc_media_player_event_manager(mp);
// libvlc_event_attach(eventManager, libvlc_MediaPlayerTimeChanged, handleEvent, pUserData);
// libvlc_event_attach(eventManager, libvlc_MediaPlayerEndReached, handleEvent, pUserData);
// libvlc_event_attach(eventManager, libvlc_MediaPlayerPositionChanged, handleEvent, pUserData);
//libvlc_video_set_format(mp, "RV24", 240, 320, 240 * 3 );
// play the media_player
libvlc_media_player_play(mp);
// Create a window for displaying the video
std::string winName("Demo Video");
cv::namedWindow(winName, cv::WINDOW_AUTOSIZE);
cv::Mat frame;
int key = 0;
// Endless loop, press Esc to quit
while (key != 27)
{
// Check for invalid input
if (videoBuffer)
{
// CV_8UC3 = 8 bits, 3 chanels
frame = cv::Mat(rtspRes, CV_8UC3, videoBuffer);
}
if (frame.rows == 0 || frame.cols == 0)
continue;
int stream_number=0;
framesReceivedThisSecond[stream_number]++;
long duration = ( std::clock() - startTime[stream_number] );
if(duration>1000)
{
std::cout<<"\n"<<"FPS "<code></ctime></iostream>FULL LOG :
core libvlc debug: Copyright © 1996-2016 the VideoLAN team
core libvlc debug: revision 2.2.3-37-g888b7e89
core libvlc debug: configured with ../extras/package/win32/../../../configure '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-twolame' '--enable-quicktime' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-x264' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-dvdread' '--enable-shout' '--enable-goom' '--enable-caca' '--disable-sdl' '--enable-qt' '--enable-skins2' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=i686-w64-mingw32' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=i686-w64-mingw32' 'PKG_CONFIG_PATH=/opt/intel/opencl:' 'PKG_CONFIG_LIBDIR=/home/svlad/DEV/vlc/contrib/i686-w64-mingw32/lib/pkgconfig'
core libvlc debug: using multimedia timers as clock source
core libvlc debug: min period: 1 ms, max period: 1000000 ms
core libvlc debug: searching plug-in modules
core libvlc debug: loading plugins cache file C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins\plugins.dat
core libvlc debug: recursively browsing `C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins'
core libvlc debug: saving plugins cache C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\plugins\plugins.dat
core libvlc debug: plug-ins loaded: 418 modules
core libvlc debug: translation test: code is "C"
core libvlc debug: CPU has capabilities MMX MMXEXT SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 FPU
core playlist debug: creating audio output
core audio output debug: looking for audio output module matching "any": 6 candidates
directsound audio output debug: found 2 devices
core audio output debug: using audio output module "directsound"
core playlist debug: keeping audio output
core interface debug: looking for interface module matching "logger,none": 16 candidates
logger interface: VLC media player - 2.2.4 Weatherwax
logger interface: Copyright © 1996-2016 the VideoLAN team
logger interface:
Warning: if you cannot access the GUI anymore, open a command-line window, go to the directory where you installed VLC and run "vlc -I qt"
logger interface: using logger.
logger interface warning: no log filename provided, using `vlc-log.txt'
logger interface debug: opening logfile `vlc-log.txt'
core libvlc debug: VLC media player - 2.2.4 Weatherwax
core libvlc debug: Copyright © 1996-2016 the VideoLAN team
core libvlc debug: revision 2.2.3-37-g888b7e89
core libvlc debug: configured with ../extras/package/win32/../../../configure '--enable-update-check' '--enable-lua' '--enable-faad' '--enable-flac' '--enable-theora' '--enable-twolame' '--enable-quicktime' '--enable-avcodec' '--enable-merge-ffmpeg' '--enable-dca' '--enable-mpc' '--enable-libass' '--enable-x264' '--enable-schroedinger' '--enable-realrtsp' '--enable-live555' '--enable-dvdread' '--enable-shout' '--enable-goom' '--enable-caca' '--disable-sdl' '--enable-qt' '--enable-skins2' '--enable-sse' '--enable-mmx' '--enable-libcddb' '--enable-zvbi' '--disable-telx' '--enable-nls' '--host=i686-w64-mingw32' '--build=x86_64-pc-linux-gnu' 'build_alias=x86_64-pc-linux-gnu' 'host_alias=i686-w64-mingw32' 'PKG_CONFIG_PATH=/opt/intel/opencl:' 'PKG_CONFIG_LIBDIR=/home/svlad/DEV/vlc/contrib/i686-w64-mingw32/lib/pkgconfig'
core interface debug: using interface module "logger"
core generic debug: creating audio output
core audio output debug: looking for audio output module matching "any": 6 candidates
directsound audio output debug: found 2 devices
core audio output debug: using audio output module "directsound"
core generic debug: keeping audio output
core input debug: Creating an input for 'rtsp://192.168.0.245/live_st1'
core stream output debug: using sout chain=`transcode{vcodec=RV24}:smem{video-prerender-callback=15667245,video-postrender-callback=15667630,video-data=3471900,no-time-sync},'
core stream output debug: stream=`smem'
core stream out debug: looking for sout stream module matching "smem": 22 candidates
core stream out debug: set config option: sout-smem-video-prerender-callback to 15667245
core stream out debug: set config option: sout-smem-video-postrender-callback to 15667630
core stream out debug: set config option: sout-smem-video-data to 3471900
core stream out debug: set config option: sout-smem-time-sync to (null)
core stream out debug: using sout stream module "stream_out_smem"
core stream output debug: stream=`transcode'
core stream out debug: looking for sout stream module matching "transcode": 22 candidates
core stream out debug: set config option: sout-transcode-vcodec to RV24
stream_out_transcode stream out debug: Checking video codec mapping for RV24 got RV24
stream_out_transcode stream out debug: codec video=RV24 0x0 scaling: 0.000000 0kb/s
core stream out debug: using sout stream module "stream_out_transcode"
core input debug: using timeshift granularity of 50 MiB, in path 'C:\Users\BCDVideo\AppData\Local\Temp'
core input debug: `rtsp://admin:admin@192.168.0.245/live_st1' gives access `rtsp' demux `' path `admin:admin@192.168.0.245/live_st1'
core input debug: specified demux `any'
core input debug: creating demux: access='rtsp' demux='any' location='admin:admin@192.168.0.245/live_st1' file='\\admin:admin@192.168.0.245\live_st1'
core demux debug: looking for access_demux module matching "rtsp": 12 candidates
live555 demux debug: version 2016.01.12
live555 demux debug: RTP subsession 'video/H264'
core input debug: selecting program id=0
live555 demux debug: setup start: 0.000000 stop:0.000000
live555 demux debug: We have a timeout of 60 seconds
live555 demux debug: spawned timeout thread
live555 demux debug: play start: 0.000000 stop:0.000000
core demux debug: using access_demux module "live555"
core decoder debug: looking for packetizer module matching "any": 23 candidates
packetizer_h264 decoder debug: found NAL_SPS (sps_id=0)
packetizer_h264 decoder debug: found NAL_PPS (pps_id=0 sps_id=0)
core decoder debug: using packetizer module "packetizer_h264"
core input debug: starting in sync mode
core demux meta debug: looking for meta reader module matching "any": 2 candidates
lua demux meta debug: Trying Lua scripts in C:\Users\BCDVideo\AppData\Roaming\vlc\lua\meta\reader
lua demux meta debug: Trying Lua scripts in C:\DEV\VLCStreamProcessor\build-untitled-Desktop_Qt_5_5_1_MSVC2013_32bit-Debug\debug\lua\meta\reader
core demux meta debug: no meta reader modules matched
core input debug: `rtsp://admin:admin@192.168.0.245/live_st1' successfully opened
core input debug: switching to async mode
core input debug: Buffering 0%
core input debug: Buffering 3%
core input debug: Buffering 10%
core stream output debug: adding a new sout input (sout_input:00c21c50)
core input debug: Buffering 13%
stream_out_transcode stream out debug: creating video transcoding from fcc=`h264' to fcc=`RV24'
core input debug: Buffering 16%
core generic debug: looking for decoder module matching "any": 43 candidates
core input debug: Buffering 20%
core input debug: Buffering 23%
avcodec generic debug: CPU flags: 0x0107d3db
core input debug: Buffering 30%
avcodec generic debug: trying to use direct rendering
core input debug: Buffering 33%
avcodec generic debug: allowing 4 thread(s) for decoding
core input debug: Buffering 36%
avcodec generic warning: threaded frame decoding is not compatible with DXVA2, disabled
core input debug: Buffering 40%
avcodec generic debug: avcodec codec (H264 - MPEG-4 AVC (part 10)) started
core input debug: Buffering 43%
avcodec generic debug: using slice thread mode with 4 threads
core input debug: Buffering 50%
core generic debug: using decoder module "avcodec"
core input debug: Buffering 53%
core encoder debug: looking for encoder module matching "any": 20 candidates
core input debug: Buffering 56%
core input debug: Buffering 60%
avcodec encoder debug: CPU flags: 0x0107d3db
core input debug: Buffering 63%
avcodec encoder debug: Time base for probing setted to 1/1000000
core input debug: Buffering 70%
avcodec encoder debug: Time base set to 1/1000000
core input debug: Buffering 73%
avcodec encoder debug: found encoder Raw video
core input debug: Buffering 76%
core encoder debug: using encoder module "avcodec"
core input debug: Buffering 80%
core encoder debug: removing module "avcodec"
core input debug: Buffering 83%
core input debug: Buffering 90%
core input debug: Buffering 93%
core input debug: Buffering 96%
core input debug: Stream buffering done (1002 ms in 834 ms)
core input debug: Decoder wait done in 0 ms
avcodec generic debug: available hardware decoder output format 61 (dxva2_vld)
avcodec generic debug: available hardware decoder output format 128 (d3d11va_vld)
avcodec generic debug: available software decoder output format 12 (yuvj420p)
core generic debug: looking for hw decoder module matching "any": 1 candidates
core generic debug: no hw decoder modules matched
avcodec generic warning: plane 0 not aligned
avcodec generic warning: disabling direct rendering
stream_out_transcode stream out debug: decoder aspect is 1.761468:1
stream_out_transcode stream out debug: source pixel aspect is 0.990826:1
stream_out_transcode stream out debug: scaled pixel aspect is 0.990826:1
stream_out_transcode stream out debug: source 1920x1080, destination 1920x1080
stream_out_transcode stream out debug: source fps 30/1, destination 30/1
stream_out_transcode stream out: input interval 33333 (base 1)
stream_out_transcode stream out: output interval 33333 (base 1)
stream_out_transcode stream out debug: encoder aspect is 1920:1090
core filter debug: looking for video filter2 module matching "any": 58 candidates
swscale filter debug: 1920x1080 (1920x1090) chroma: J420 -> 1920x1080 (1920x1090) chroma: RV24 with scaling using Bicubic (good quality)
core filter debug: using video filter2 module "swscale"
core stream out debug: Filter 'Swscale' (0089a2cc) appended to chain
stream_out_transcode stream out debug: destination (after video filters) 1920x1090
core encoder debug: looking for encoder module matching "any": 20 candidates
avcodec encoder debug: CPU flags: 0x0107d3db
avcodec encoder debug: Time base for probing setted to 1/30
avcodec encoder debug: Time base set to 1/30
avcodec encoder debug: found encoder Raw video
core encoder debug: using encoder module "avcodec"
stream_out_transcode stream out warning: Reseting video sync
stream_out_transcode stream out warning: Reseting video sync
stream_out_transcode stream out warning: Reseting video sync
stream_out_transcode stream out warning: Reseting video sync
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518755, last: 1518769)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518756, last: 1518769)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518757, last: 1518769)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518758, last: 1518769)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518759, last: 1518769)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518760, last: 1518769)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518761, last: 1518769)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518762, last: 1518769)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518763, last: 1518769)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518764, last: 1518769)
stream_out_transcode stream out warning: Reseting video sync
stream_out_transcode stream out warning: Reseting video sync
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518784, last: 1518795)
live555 demux debug: tk->rtpSource->hasBeenSynchronizedUsingRTCP()
core input error: ES_OUT_RESET_PCR called
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518785, last: 1518795)
core input debug: Buffering 0%
core input debug: Buffering 3%
core input debug: Buffering 6%
core input debug: Buffering 10%
core input debug: Buffering 13%
core input debug: Buffering 20%
core input debug: Buffering 23%
core input debug: Buffering 26%
core input debug: Buffering 30%
core input debug: Buffering 33%
core input debug: Buffering 40%
core input debug: Buffering 43%
core input debug: Buffering 46%
core input debug: Buffering 50%
core input debug: Buffering 53%
core input debug: Buffering 60%
core input debug: Buffering 63%
core input debug: Buffering 66%
core input debug: Buffering 70%
core input debug: Buffering 73%
core input debug: Buffering 80%
core input debug: Buffering 83%
core input debug: Buffering 86%
core input debug: Buffering 90%
core input debug: Buffering 93%
core input debug: Stream buffering done (1002 ms in 817 ms)
core input debug: Decoder wait done in 0 ms
stream_out_transcode stream out warning: Reseting video sync
stream_out_transcode stream out warning: Reseting video sync
stream_out_transcode stream out warning: Reseting video sync
stream_out_transcode stream out warning: Reseting video sync
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518834, last: 1518837)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518835, last: 1518837)
avcodec encoder warning: almost fed libavcodec with a frame in the past (current: 1518836, last: 1518837)
avcodec encoder warning: almost fed libavcodec with two frames with the same PTS (1518837)
stream_out_transcode stream out warning: Reseting video sync
stream_out_transcode stream out warning: Reseting video sync -
Problems with FFMPEG concat and/or MP4BOX
11 novembre 2016, par user3730954I’ve been searching for a reliable way to concat a large (>30) number of mp4 files.
My methods so far have been trying the MP4BOX concat CLI, and FFMPEG’s concat filter (such as
ffmpeg -auto_convert 1 -y -f concat -i files.txt -c copy out.mp4).Both tools produce the same problem : joining 2 or 3 files seems to work great, but any greater number produces a corrupted mp4 file (such as https://drive.google.com/file/d/0B_mWxBuwYcSgQjQtUnpQeUxVTm8/view). I can create a workaround where I join only 2 videos at a time, until all videos have been joined, but this does not work for an odd number of joins (i.e. 13).
Why do these methods work on some files, but not others ?
FFPROBE produces errors as you would expect on these corrupted files :
error while decoding MB x y, bytestream z
Reference 2 >= 2
top block unavailable for requested intra modeexample FFMPEG output :
ffmpeg version N-80901-gfebc862 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
libavutil 55. 28.100 / 55. 28.100
libavcodec 57. 48.101 / 57. 48.101
libavformat 57. 41.100 / 57. 41.100
libavdevice 57. 0.102 / 57. 0.102
libavfilter 6. 47.100 / 6. 47.100
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
libpostproc 54. 0.100 / 54. 0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x36b3a80] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from 'twitter-files.txt':
Duration: N/A, start: 0.000000, bitrate: 415 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 284 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s
Metadata:
handler_name : SoundHandler
[mp4 @ 0x36b7dc0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
Last message repeated 1 times
Output #0, mp4, to 'twitter-tmp.mp4':
Metadata:
encoder : Lavf57.41.100
Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=2-31, 284 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 130 kb/s
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3733160] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 1 times
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3733140] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x36b7dc0] Packet with invalid duration -512 in stream 1
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x3733140] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 2 times
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x36ba960] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x36b7dc0] Packet with invalid duration -512 in stream 1
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x36ba960] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 4 times
[mp4 @ 0x36b7dc0] Non-monotonous DTS in output stream 0:0; previous: 306957, current: 306445; changing to 306958. This may result in incorrect timestamps in the output file.
[mp4 @ 0x36b7dc0] Non-monotonous DTS in output stream 0:0; previous: 306958, current: 306957; changing to 306959. This may result in incorrect timestamps in the output file.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x36ba960] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 1 times
frame= 750 fps=0.0 q=-1.0 Lsize= 1088kB time=00:00:30.04 bitrate= 296.6kbits/s speed= 366xOSX output :
ffmpeg version 3.0 Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 7.3.0 (clang-703.0.31)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.0 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libvpx --enable-vda
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49808c00] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from 'twitter-files.txt':
Duration: N/A, start: 0.000000, bitrate: 415 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 284 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 130 kb/s
Metadata:
handler_name : SoundHandler
Output #0, mp4, to 'tmp-twitter.mp4':
Metadata:
encoder : Lavf57.25.100
Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1280x720, q=2-31, 284 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 130 kb/s
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a005400] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x7f9c4a000c00] Packet with invalid duration -512 in stream 1
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a800000] Auto-inserting h264_mp4toannexb bitstream filter
Last message repeated 1 times
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x7f9c4a000c00] Packet with invalid duration -512 in stream 1
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a005400] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c4a800e00] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x7f9c4a000c00] Non-monotonous DTS in output stream 0:0; previous: 306957, current: 306445; changing to 306958. This may result in incorrect timestamps in the output file.
[mp4 @ 0x7f9c4a000c00] Non-monotonous DTS in output stream 0:0; previous: 306958, current: 306957; changing to 306959. This may result in incorrect timestamps in the output file.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49800000] Auto-inserting h264_mp4toannexb bitstream filter
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9c49010e00] Auto-inserting h264_mp4toannexb bitstream filter
frame= 750 fps=0.0 q=-1.0 Lsize= 1146kB time=00:00:30.04 bitrate= 312.4kbits/s speed= 192x
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