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Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...) -
Taille des images et des logos définissables
9 février 2011, parDans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...) -
Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)
Sur d’autres sites (3234)
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ffmpeg avcodec_encode_video2 hangs when using Quick Sync h264_qsv encoder
9 juin 2020, par Mike SimpsonWhen I use the mpeg4 or h264 encoders, I am able to successfully encode images to make a valid AVI file using the API for ffmpeg 3.1.0. However, when I use the Quick Sync encoder (h264_qsv), avcodec_encode_video2 will hang some of the time. I found that when using images that are 1920x1080, it was rare that avcodec_encode_video2 would hang. When using 256x256 images, it was very likely that the function would hang.



I have created the test code below that demonstrates the hang of avcodec_encode_video2. The code will create a 1000 frame, 256x256 AVI with a bit rate of 400000. The frames are simply allocated, so the output video should just be green frames.



The problem was observed using Windows 7 and Windows 10, using the 32-bit or 64-bit test application.



If anyone has any idea on how I can avoid the avcodec_encode_video2 hang I would be very grateful ! Thanks in advance for any assistance.



extern "C"
{
#ifndef __STDC_CONSTANT_MACROS
#define __STDC_CONSTANT_MACROS
#endif
#include "avcodec.h"
#include "avformat.h"
#include "swscale.h"
#include "avutil.h"
#include "imgutils.h"
#include "opt.h"
#include 
}

#include <iostream>


// Globals
AVCodec* m_pCodec = NULL;
AVStream *m_pStream = NULL;
AVOutputFormat* m_pFormat = NULL;
AVFormatContext* m_pFormatContext = NULL;
AVCodecContext* m_pCodecContext = NULL;
AVFrame* m_pFrame = NULL;
int m_frameIndex;

// Output format
AVPixelFormat m_pixType = AV_PIX_FMT_NV12;
// Use for mpeg4
//AVPixelFormat m_pixType = AV_PIX_FMT_YUV420P;

// Output frame rate
int m_frameRate = 30;
// Output image dimensions
int m_imageWidth = 256;
int m_imageHeight = 256;
// Number of frames to export
int m_frameCount = 1000;
// Output file name
const char* m_fileName = "c:/test/test.avi";
// Output file type
const char* m_fileType = "AVI";
// Codec name used to encode
const char* m_encoderName = "h264_qsv";
// use for mpeg4
//const char* m_encoderName = "mpeg4";
// Target bit rate
int m_targetBitRate = 400000;

void addVideoStream()
{
 m_pStream = avformat_new_stream( m_pFormatContext, m_pCodec );
 m_pStream->id = m_pFormatContext->nb_streams - 1;
 m_pStream->time_base = m_pCodecContext->time_base;
 m_pStream->codec->pix_fmt = m_pixType;
 m_pStream->codec->flags = m_pCodecContext->flags;
 m_pStream->codec->width = m_pCodecContext->width;
 m_pStream->codec->height = m_pCodecContext->height;
 m_pStream->codec->time_base = m_pCodecContext->time_base;
 m_pStream->codec->bit_rate = m_pCodecContext->bit_rate;
}

AVFrame* allocatePicture( enum AVPixelFormat pix_fmt, int width, int height )
{
 AVFrame *frame;

 frame = av_frame_alloc();

 if ( !frame )
 {
 return NULL;
 }

 frame->format = pix_fmt;
 frame->width = width;
 frame->height = height;

 int checkImage = av_image_alloc( frame->data, frame->linesize, width, height, pix_fmt, 32 );

 if ( checkImage < 0 )
 {
 return NULL;
 }

 return frame;
}

bool initialize()
{
 AVRational frameRate;
 frameRate.den = m_frameRate;
 frameRate.num = 1;

 av_register_all();

 m_pCodec = avcodec_find_encoder_by_name(m_encoderName);

 if( !m_pCodec )
 {
 return false;
 }

 m_pCodecContext = avcodec_alloc_context3( m_pCodec );
 m_pCodecContext->width = m_imageWidth;
 m_pCodecContext->height = m_imageHeight;
 m_pCodecContext->time_base = frameRate;
 m_pCodecContext->gop_size = 0;
 m_pCodecContext->pix_fmt = m_pixType;
 m_pCodecContext->codec_id = m_pCodec->id;
 m_pCodecContext->bit_rate = m_targetBitRate;

 av_opt_set( m_pCodecContext->priv_data, "+CBR", "", 0 );

 return true;
}

bool startExport()
{
 m_frameIndex = 0;
 char fakeFileName[512]; 
 int checkAllocContext = avformat_alloc_output_context2( &m_pFormatContext, NULL, m_fileType, fakeFileName );

 if ( checkAllocContext < 0 )
 {
 return false;
 }

 if ( !m_pFormatContext ) 
 {
 return false;
 }

 m_pFormat = m_pFormatContext->oformat;

 if ( m_pFormat->video_codec != AV_CODEC_ID_NONE ) 
 {
 addVideoStream();

 int checkOpen = avcodec_open2( m_pCodecContext, m_pCodec, NULL );

 if ( checkOpen < 0 )
 {
 return false;
 }

 m_pFrame = allocatePicture( m_pCodecContext->pix_fmt, m_pCodecContext->width, m_pCodecContext->height ); 
 if( !m_pFrame ) 
 {
 return false;
 }
 m_pFrame->pts = 0;
 }

 int checkOpen = avio_open( &m_pFormatContext->pb, m_fileName, AVIO_FLAG_WRITE );
 if ( checkOpen < 0 )
 {
 return false;
 }

 av_dict_set( &(m_pFormatContext->metadata), "title", "QS Test", 0 );

 int checkHeader = avformat_write_header( m_pFormatContext, NULL );
 if ( checkHeader < 0 )
 {
 return false;
 }

 return true;
}

int processFrame( AVPacket& avPacket )
{
 avPacket.stream_index = 0;
 avPacket.pts = av_rescale_q( m_pFrame->pts, m_pStream->codec->time_base, m_pStream->time_base );
 avPacket.dts = av_rescale_q( m_pFrame->pts, m_pStream->codec->time_base, m_pStream->time_base );
 m_pFrame->pts++;

 int retVal = av_interleaved_write_frame( m_pFormatContext, &avPacket );
 return retVal;
}

bool exportFrame()
{
 int success = 1;
 int result = 0;

 AVPacket avPacket;

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

 fflush(stdout);

 std::cout << "Before avcodec_encode_video2 for frame: " << m_frameIndex << std::endl;
 success = avcodec_encode_video2( m_pCodecContext, &avPacket, m_pFrame, &result );
 std::cout << "After avcodec_encode_video2 for frame: " << m_frameIndex << std::endl;

 if( result )
 { 
 success = processFrame( avPacket );
 }

 av_packet_unref( &avPacket );

 m_frameIndex++;
 return ( success == 0 );
}

void endExport()
{
 int result = 0;
 int success = 0;

 if (m_pFrame)
 {
 while ( success == 0 )
 {
 AVPacket avPacket;
 av_init_packet( &avPacket );
 avPacket.data = NULL;
 avPacket.size = 0;

 fflush(stdout);
 success = avcodec_encode_video2( m_pCodecContext, &avPacket, NULL, &result );

 if( result )
 { 
 success = processFrame( avPacket );
 }
 av_packet_unref( &avPacket );

 if (!result)
 {
 break;
 }
 }
 }

 if (m_pFormatContext)
 {
 av_write_trailer( m_pFormatContext );

 if( m_pFrame )
 {
 av_frame_free( &m_pFrame );
 }

 avio_closep( &m_pFormatContext->pb );
 avformat_free_context( m_pFormatContext );
 m_pFormatContext = NULL;
 }
}

void cleanup()
{
 if( m_pFrame || m_pCodecContext )
 {
 if( m_pFrame )
 {
 av_frame_free( &m_pFrame );
 }

 if( m_pCodecContext )
 {
 avcodec_close( m_pCodecContext );
 av_free( m_pCodecContext );
 }
 }
}

int main()
{
 bool success = true;
 if (initialize())
 {
 if (startExport())
 {
 for (int loop = 0; loop < m_frameCount; loop++)
 {
 if (!exportFrame())
 {
 std::cout << "Failed to export frame\n";
 success = false;
 break;
 }
 }
 endExport();
 }
 else
 {
 std::cout << "Failed to start export\n";
 success = false;
 }

 cleanup();
 }
 else
 {
 std::cout << "Failed to initialize export\n";
 success = false;
 }

 if (success)
 {
 std::cout << "Successfully exported file\n";
 }
 return 1;
}
</iostream>

-
FFMPEG Video to Audio Conversion Results in Different Durations
10 juin 2020, par Eric JI am trying to covert an MP4 file into a mono WAV file sampled at 16,000 Hz.



When I run below code, the duration goes from 00:09:59.99 (MP4) to 00:09:57.64 (WAV). Its original, longer version goes from 00:48:37.46 (MP4) to 00:48:23.38 (WAV).



ffmpeg -i .mp4 -ac 1 -ar 16000 .wav



I've also tried below code. The result is much worse, going from 00:09:59.99 (MP4) to 00:12:56.29 (AAC).



ffmpeg -I .mp4 -vn -acodec copy .aac



Attaching the log :



Report written to "ffmpeg-20200610-093115.log"
Command line:
ffmpeg -i short.mp4 -ac 1 -ar 16000 short.wav -report
ffmpeg version 4.1.1 Copyright (c) 2000-2019 the FFmpeg developers
 built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
 configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/openjdk-11.0.2.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/openjdk-11.0.2.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
 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
Splitting the commandline.
Reading option '-i' ... matched as input url with argument 'short.mp4'.
Reading option '-ac' ... matched as option 'ac' (set number of audio channels) with argument '1'.
Reading option '-ar' ... matched as option 'ar' (set audio sampling rate (in Hz)) with argument '16000'.
Reading option 'short.wav' ... matched as output url.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input url short.mp4.
Successfully parsed a group of options.
Opening an input file: short.mp4.
[NULL @ 0x7f98a3008200] Opening 'short.mp4' for reading
[file @ 0x7f98a2904440] Setting default whitelist 'file,crypto'
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] ISO: File Type Major Brand: mp42
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Processing st: 0, edit list 0 - media time: 0, duration: 7679872
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Unknown dref type 0x206c7275 size 12
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Processing st: 1, edit list 0 - media time: 1024, duration: 26459559
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] drop a frame at curr_cts: 0 @ 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] Before avformat_find_stream_info() pos: 11213917 bytes read:318782 seeks:1 nb_streams:2
[h264 @ 0x7f98a3808800] nal_unit_type: 7(SPS), nal_ref_idc: 3
[h264 @ 0x7f98a3808800] nal_unit_type: 8(PPS), nal_ref_idc: 3
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] demuxer injecting skip 1024 / discard 0
[aac @ 0x7f98a1008c00] skip 1024 / discard 0 samples due to side data
[h264 @ 0x7f98a3808800] nal_unit_type: 6(SEI), nal_ref_idc: 0
[h264 @ 0x7f98a3808800] nal_unit_type: 5(IDR), nal_ref_idc: 3
[h264 @ 0x7f98a3808800] Format yuv420p chosen by get_format().
[h264 @ 0x7f98a3808800] Reinit context to 640x368, pix_fmt: yuv420p
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] All info found
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f98a3008200] After avformat_find_stream_info() pos: 21961 bytes read:351550 seeks:2 frames:46
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'short.mp4':
 Metadata:
 major_brand : mp42
 minor_version : 1
 compatible_brands: isommp41mp42
 creation_time : 2020-06-10T16:12:17.000000Z
 Duration: 00:09:59.99, start: 0.000000, bitrate: 149 kb/s
 Stream #0:0(eng), 1, 1/12800: Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 47 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc (default)
 Metadata:
 creation_time : 2020-06-10T16:12:17.000000Z
 handler_name : Core Media Video
 Stream #0:1(eng), 45, 1/44100: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 98 kb/s (default)
 Metadata:
 creation_time : 2020-06-10T16:12:17.000000Z
 handler_name : Core Media Audio
Successfully opened the file.
Parsing a group of options: output url short.wav.
Applying option ac (set number of audio channels) with argument 1.
Applying option ar (set audio sampling rate (in Hz)) with argument 16000.
Successfully parsed a group of options.
Opening an output file: short.wav.
[file @ 0x7f98a0c1db40] Setting default whitelist 'file,crypto'
Successfully opened the file.
Stream mapping:
 Stream #0:1 -> #0:0 (aac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
[aac @ 0x7f98a100de00] skip 1024 / discard 0 samples due to side data
cur_dts is invalid (this is harmless if it occurs once at the start per stream)
detected 12 logical cores
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] Setting 'time_base' to value '1/44100'
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] Setting 'sample_rate' to value '44100'
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] Setting 'sample_fmt' to value 'fltp'
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] Setting 'channel_layout' to value '0x4'
[graph_0_in_0_1 @ 0x7f98a0e2c4c0] tb:1/44100 samplefmt:fltp samplerate:44100 chlayout:0x4
[format_out_0_0 @ 0x7f98a0e2cb80] Setting 'sample_fmts' to value 's16'
[format_out_0_0 @ 0x7f98a0e2cb80] Setting 'sample_rates' to value '16000'
[format_out_0_0 @ 0x7f98a0e2cb80] Setting 'channel_layouts' to value '0x4'
[format_out_0_0 @ 0x7f98a0e2cb80] auto-inserting filter 'auto_resampler_0' between the filter 'Parsed_anull_0' and the filter 'format_out_0_0'
[AVFilterGraph @ 0x7f98a0c16ac0] query_formats: 4 queried, 6 merged, 3 already done, 0 delayed
[auto_resampler_0 @ 0x7f98a0e2d540] [SWR @ 0x7f98a28e1000] Using fltp internally between filters
[auto_resampler_0 @ 0x7f98a0e2d540] ch:1 chl:mono fmt:fltp r:44100Hz -> ch:1 chl:mono fmt:s16 r:16000Hz
Output #0, wav, to 'short.wav':
 Metadata:
 major_brand : mp42
 minor_version : 1
 compatible_brands: isommp41mp42
 ISFT : Lavf58.20.100
 Stream #0:0(eng), 0, 1/16000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 16000 Hz, mono, s16, 256 kb/s (default)
 Metadata:
 creation_time : 2020-06-10T16:12:17.000000Z
 handler_name : Core Media Audio
 encoder : Lavc58.35.100 pcm_s16le
size= 17152kB time=00:09:16.63 bitrate= 252.4kbits/s speed=1.11e+03x 
[out_0_0 @ 0x7f98a0e2c700] EOF on sink link out_0_0:default.
No more output streams to write to, finishing.
size= 18676kB time=00:09:59.99 bitrate= 255.0kbits/s speed=1.11e+03x 
video:0kB audio:18676kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000408%
Input file #0 (short.mp4):
 Input stream #0:0 (video): 1 packets read (3689 bytes); 
 Input stream #0:1 (audio): 25739 packets read (7375414 bytes); 25738 frames decoded (26355712 samples); 
 Total: 25740 packets (7379103 bytes) demuxed
Output file #0 (short.wav):
 Output stream #0:0 (audio): 25739 frames encoded (9562163 samples); 25739 packets muxed (19124326 bytes); 
 Total: 25739 packets (19124326 bytes) muxed
25738 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x7f98a0c1dc40] Statistics: 4 seeks, 76 writeouts
[AVIOContext @ 0x7f98a29045c0] Statistics: 10902846 bytes read, 29 seeks


-
ffmpeg webm to mp4 conversion failed
13 juin 2020, par Jaunius BumptirkluTrying to convert webm file to mp4. Getting "conversion failed" as a result. Other webm files I am working with converts just fine.



ffprobe info on inputfile.webm



$ ffprobe -v quiet -print_format json -show_format -show_streams inputfile.webm
{
 "streams": [
 {
 "index": 0,
 "codec_name": "vp8",
 "codec_long_name": "On2 VP8",
 "profile": "0",
 "codec_type": "video",
 "codec_time_base": "1/30",
 "codec_tag_string": "[0][0][0][0]",
 "codec_tag": "0x0000",
 "width": 640,
 "height": 480,
 "coded_width": 640,
 "coded_height": 480,
 "has_b_frames": 0,
 "sample_aspect_ratio": "1:1",
 "display_aspect_ratio": "4:3",
 "pix_fmt": "yuv420p",
 "level": -99,
 "field_order": "progressive",
 "refs": 1,
 "r_frame_rate": "30/1",
 "avg_frame_rate": "30/1",
 "time_base": "1/1000",
 "start_pts": 0,
 "start_time": "0.000000",
 "disposition": {
 "default": 1,
 "dub": 0,
 "original": 0,
 "comment": 0,
 "lyrics": 0,
 "karaoke": 0,
 "forced": 0,
 "hearing_impaired": 0,
 "visual_impaired": 0,
 "clean_effects": 0,
 "attached_pic": 0,
 "timed_thumbnails": 0
 }
 },
 {
 "index": 1,
 "codec_name": "opus",
 "codec_long_name": "Opus (Opus Interactive Audio Codec)",
 "codec_type": "audio",
 "codec_time_base": "1/48000",
 "codec_tag_string": "[0][0][0][0]",
 "codec_tag": "0x0000",
 "sample_fmt": "fltp",
 "sample_rate": "48000",
 "channels": 1,
 "channel_layout": "mono",
 "bits_per_sample": 0,
 "r_frame_rate": "0/0",
 "avg_frame_rate": "0/0",
 "time_base": "1/1000",
 "start_pts": 0,
 "start_time": "0.000000",
 "duration_ts": 12333,
 "duration": "12.333000",
 "disposition": {
 "default": 1,
 "dub": 0,
 "original": 0,
 "comment": 0,
 "lyrics": 0,
 "karaoke": 0,
 "forced": 0,
 "hearing_impaired": 0,
 "visual_impaired": 0,
 "clean_effects": 0,
 "attached_pic": 0,
 "timed_thumbnails": 0
 }
 }
 ],
 "format": {
 "filename": "inputfile.webm",
 "nb_streams": 2,
 "nb_programs": 0,
 "format_name": "matroska,webm",
 "format_long_name": "Matroska / WebM",
 "start_time": "0.000000",
 "duration": "12.333000",
 "size": "1609303",
 "bit_rate": "1043900",
 "probe_score": 100,
 "tags": {
 "encoder": "Lavf56.40.101",
 "creation_time": "2020-06-12T11:32:05.000000Z"
 }
 }
}



ffmpeg conversion log for command "ffmpeg -i inputfile.webm out.mp4" is below.



$ ffmpeg -i inputfile.webm out.mp4
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
 built with Apple clang version 11.0.3 (clang-1103.0.32.59)
 configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_3 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags=-fno-stack-check --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
 libavutil 56. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
Input #0, matroska,webm, from 'inputfile.webm':
 Metadata:
 encoder : Lavf56.40.101
 creation_time : 2020-06-12T11:32:05.000000Z
 Duration: 00:00:12.33, start: 0.000000, bitrate: 1043 kb/s
 Stream #0:0: Video: vp8, yuv420p(progressive), 640x480, SAR 1:1 DAR 4:3, 30 fps, 30 tbr, 1k tbn, 1k tbc (default)
 Stream #0:1: Audio: opus, 48000 Hz, mono, fltp (default)
Stream mapping:
 Stream #0:0 -> #0:0 (vp8 (native) -> h264 (libx264))
 Stream #0:1 -> #0:1 (opus (native) -> aac (native))
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[libx264 @ 0x7f9e64811600] using SAR=1/1
[libx264 @ 0x7f9e64811600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7f9e64811600] profile High, level 5.0
[libx264 @ 0x7f9e64811600] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=18 lookahead_threads=3 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Too many packets buffered for output stream 0:0.577014:32:22.77 bitrate= -0.0kbits/s dup=45 drop=0 speed=N/A
[libx264 @ 0x7f9e64811600] frame I:1 Avg QP:16.69 size: 56001
[libx264 @ 0x7f9e64811600] frame P:33 Avg QP:19.46 size: 9705
[libx264 @ 0x7f9e64811600] frame B:95 Avg QP:19.23 size: 662
[libx264 @ 0x7f9e64811600] consecutive B-frames: 0.8% 0.0% 4.6% 94.7%
[libx264 @ 0x7f9e64811600] mb I I16..4: 46.7% 36.4% 16.9%
[libx264 @ 0x7f9e64811600] mb P I16..4: 4.0% 9.4% 0.5% P16..4: 6.5% 1.2% 0.6% 0.0% 0.0% skip:77.8%
[libx264 @ 0x7f9e64811600] mb B I16..4: 0.1% 0.1% 0.0% B16..8: 6.0% 0.1% 0.0% direct: 0.7% skip:93.0% L0:44.7% L1:54.8% BI: 0.4%
[libx264 @ 0x7f9e64811600] 8x8 transform intra:61.3% inter:37.9%
[libx264 @ 0x7f9e64811600] coded y,uvDC,uvAC intra: 8.6% 3.3% 1.3% inter: 0.9% 0.9% 0.1%
[libx264 @ 0x7f9e64811600] i16 v,h,dc,p: 41% 52% 6% 1%
[libx264 @ 0x7f9e64811600] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 42% 16% 41% 0% 0% 0% 0% 0% 0%
[libx264 @ 0x7f9e64811600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 40% 17% 2% 2% 2% 2% 1% 3%
[libx264 @ 0x7f9e64811600] i8c dc,h,v,p: 88% 8% 3% 0%
[libx264 @ 0x7f9e64811600] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7f9e64811600] ref P L0: 75.5% 13.1% 9.1% 2.3%
[libx264 @ 0x7f9e64811600] ref B L0: 82.1% 16.4% 1.5%
[libx264 @ 0x7f9e64811600] ref B L1: 97.0% 3.0%
[libx264 @ 0x7f9e64811600] kb/s:816.97
Conversion failed!



I don't have deeper experience with ffmpeg conversions and codecs. It seems to me that this is a frames related problem. Do you have a clue why does it fail ? What options should I use in ffmpeg command to solve this ? Thanks for any help.


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