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    12 avril 2011, par

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  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
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  • h.265 encoding with ffmpeg, video not playing correctly

    11 mars 2020, par DanielRieken

    I got a h.264 video I would like to encode to h.265 using FFmpeg :

    ffmpeg.exe -i h264source.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv

    The source h.264 video is a recording of a RTMP-stream. At some point the video stops moving for 3 seconds. This is because of connection-issues of the original RTMP-stream.
    Of course the resulting h.265 video also stops moving for 3 seconds at the same point. But other than the h.264 video, the picture of the h.265 video is not frozen for only 3 seconds, it is frozen until the end of the video.

    I am using VLCplayer 3.0.8 for playback and it shows the following messages for the h.265 video :

    avcodec: Using D3D11VA (NVIDIA GeForce GT 1030, vendor 10de(NVIDIA), device 1d01, revision a1) for hardware decoding
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: avcodec_send_packet critical error

    When I disable hardware acceleration in VLCplayer the playback of the h.265 video works fine.

    Next I encoded the h.264 to h.265 using HandBrake 1.3.0 and the resulting h.265 video also works fine in VLCplayer with hardware acceleration enabled.

    So my question is :
    Why is the playback of the h.264 and the h.265-handbrake-videos working fine in VLCplayer but not the h.265-ffmpeg video ?

    When I encode the h.264 to huffyuv and then to h.265 using FFmpeg, the resulting h.265-video also works fine :

    ffmpeg.exe -i h264source.mkv -vcodec huffyuv -an huffyuv.mkv
    
ffmpeg.exe -i huffyuv.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv

    I am using the windows build by Zeranoe, ffmpeg-4.2.2-win64-static.

    C:\ffmpeg>ffmpeg.exe -loglevel verbose -i h264source.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv
    
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9.2.1 (GCC) 20200122
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
    
  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
    
  libswscale      5.  5.100 /  5.  5.100
    
  libswresample   3.  5.100 /  3.  5.100
    
  libpostproc    55.  5.100 / 55.  5.100
    
[h264 @ 000001e8dc09d6c0] Reinit context to 864x480, pix_fmt: yuv420p
    
Input #0, matroska,webm, from 'h264source.mkv':
    
  Metadata:
    
    COMPATIBLE_BRANDS: isomiso2avc1mp41
    
    MAJOR_BRAND     : isom
    
    MINOR_VERSION   : 512
    
    ENCODER         : Lavf58.29.100
    
  Duration: 00:01:55.67, start: 0.000000, bitrate: 958 kb/s
    
    Stream #0:0: Video: h264 (Constrained Baseline), 1 reference frame, yuv420p(progressive, left), 852x480 (864x480) [SAR 1:1 DAR 71:40], 30 fps, 30 tbr, 1k tbn, 60 tbc (default)
    
    Metadata:
    
      ENCODER         : Lavc58.54.100 libx264
    
      DURATION        : 00:01:55.666000000
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
    
Press [q] to stop, [?] for help
    
[h264 @ 000001e8dc77b080] Reinit context to 864x480, pix_fmt: yuv420p
    
[graph 0 input from stream 0:0 @ 000001e8dd38ee40] w:852 h:480 pixfmt:yuv420p tb:1/1000 fr:30/1 sar:1/1 sws_param:flags=2
    
x265 [info]: HEVC encoder version 3.2ßacc5d16999e2
    
x265 [info]: build info [Windows][GCC 9.2.1][64 bit] 8bit+10bit
    
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
x265 [info]: Main profile, Level-3 (Main tier)
    
x265 [info]: Thread pool created using 16 threads
    
x265 [info]: Slices                              : 1
    
x265 [info]: frame threads / pool features       : 4 / wpp(8 rows)
    
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
    
x265 [info]: Residual QT: max TU size, max depth : 32 / 3 inter / 3 intra
    
x265 [info]: ME / range / subpel / merge         : star / 57 / 4 / 4
    
x265 [info]: Keyframe min / max / scenecut / bias  : 25 / 250 / 40 / 5.00
    
x265 [info]: Lookahead / bframes / badapt        : 40 / 8 / 2
    
x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 1
    
x265 [info]: References / ref-limit  cu / depth  : 5 / off / on
    
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 2 / 1.0 / 32 / 1
    
x265 [info]: Rate Control / qCompress            : CRF-24.0 / 0.60
    
x265 [info]: tools: rect amp limit-modes rd=6 psy-rd=2.00 rdoq=2 psy-rdoq=1.00
    
x265 [info]: tools: rskip limit-tu=4 signhide tmvp b-intra
    
x265 [info]: tools: strong-intra-smoothing deblock sao
    
Output #0, matroska, to 'h265output.mkv':
    
  Metadata:
    
    COMPATIBLE_BRANDS: isomiso2avc1mp41
    
    MAJOR_BRAND     : isom
    
    MINOR_VERSION   : 512
    
    encoder         : Lavf58.29.100
    
    Stream #0:0: Video: hevc (libx265), 1 reference frame, yuv420p(left), 852x480 [SAR 1:1 DAR 71:40], q=2-31, 30 fps, 1k tbn, 30 tbc (default)
    
    Metadata:
    
      DURATION        : 00:01:55.666000000
    
      encoder         : Lavc58.54.100 libx265
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
No more output streams to write to, finishing
    
frame= 3178 fps= 14 q=-0.0 Lsize=    5105kB time=00:01:55.56 bitrate= 361.9kbits/s speed=0.506x
    
video:5080kB audio:0kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.492293%
    
Input file #0 (h264source.mkv):
    
  Input stream #0:0 (video): 3178 packets read (13837009 bytes); 3178 frames decoded;
    
  Total: 3178 packets (13837009 bytes) demuxed
    
Output file #0 (h265output.mkv):
    
  Output stream #0:0 (video): 3178 frames encoded; 3178 packets muxed (5201780 bytes);
    
  Total: 3178 packets (5201780 bytes) muxed
    
[AVIOContext @ 000001e8dc77af40] Statistics: 8 seeks, 40 writeouts
    
x265 [info]: frame I:     13, Avg QP:18.10  kb/s: 6779.10
    
x265 [info]: frame P:   1754, Avg QP:22.52  kb/s: 619.00
    
x265 [info]: frame B:   1411, Avg QP:31.19  kb/s: 50.69
    
x265 [info]: Weighted P-Frames: Y:0.0% UV:0.0%
    
x265 [info]: Weighted B-Frames: Y:0.0% UV:0.0%
    
x265 [info]: consecutive B-frames: 67.4% 8.3% 8.6% 10.9% 2.7% 2.0% 0.2% 0.0% 0.0%
    

    
encoded 3178 frames in 228.50s (13.91 fps), 391.87 kb/s, Avg QP:26.35
    
[AVIOContext @ 000001e8dc0936c0] Statistics: 13860805 bytes read, 0 seeks

    Any advices ?

  • ffmpeg rtmp streaming at 30fps

    19 janvier 2018, par user6326558

    I am trying to stream my desktop to facebook rtmp server using screen-capture-recorder :

    ffmpeg -re  -f dshow -i audio="virtual-audio-capturer" -hwaccel cuvid 
    
-f dshow -i video=screen-capture-recorder  -r 30 -rtbufsize 1024M 
    
-filter:v scale=480:360 -vcodec libx264 
    
-pix_fmt yuv420p -preset fast -b:v 8M -maxrate:v 10M  -c:a aac -b:a 128k 
    
-ar 44100 -f flv rtmp://live-api.facebook.com:80/rtmp/..............

    But when I start streaming, it says that fps is only 10 and sometimes it immediatelly on start-up yells following error. Then, when I start to do something on my computer, for example I run a game, I keep getting that warning 20 times per second, and streamed video is 0.5 fps.

    real-time buffer [screen-capture-recorder] [video input] too full or near
    too full (545% of size : 3041280 [rtbufsize parameter]) ! frame dropped !

    When I stream it into file,

    ffmpeg -re  -f dshow -i audio="virtual-audio-capturer" -hwaccel cuvid 
    
-f dshow -i video=screen-capture-recorder  -r 30 -rtbufsize 1024M 
    
-filter:v scale=480:360 -vcodec libx264 
    
-pix_fmt yuv420p -preset fast -b:v 8M -maxrate:v 10M  -c:a aac -b:a 128k 
    
-ar 44100 D:\test.mp4 -y

    it says streaming is 30 fps, but as soon as I start doing something, for example game, the metioned situation repeats, tens of errors, and 0,5 fps video.

    I tried chanching -rtbufsize from 8 to 2048 megabytes, nothing changed. I tried adding and disablinh hw acceleration, nothing changed. Can anyone tell me, what am I doing wrong ? Thank you

    Solved -rtbufsize 1024M must be before -i. Another thing, I rather used codec h264_nvenc from nvidia for cuda acceleration, now I can stream into file at 30 fps without problems and warnings, even while playing game (Call of duty 6, HW draining). However, when I try to stream to rtmp, I also get no warnings, but I can stream at only 15 fps. Is it also possible to stream to rtmp at 30 fps with my command configuration ?

    If needed, my ffmpeg build config is :

    ffmpeg version 3.3.3 Copyright (c) 2000-2017 the FFmpeg developers

    built with gcc 7.1.0 (GCC)
    configuration : —disable-static —enable-shared —enable-gpl —enable-version3 —enable-cuda —enable-cuvid —enable-d3d11va —enable-dxva2 —enable-libmfx —enable-nvenc —enable-avisynth —enable-bzlib —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-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-zlib

  • h.265 encoding with ffmpeg, video not playing correctly

    5 mars 2020, par DanielRieken

    I got a h.264 video I would like to encode to h.265 using FFmpeg :

    ffmpeg.exe -i h264source.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv

    The source h.264 video is a recording of a RTMP-stream. At some point the video stops moving for 3 seconds. This is because of connection-issues of the original RTMP-stream.
    Of course the resulting h.265 video also stops moving for 3 seconds at the same point. But other than the h.264 video, the picture of the h.265 video is not frozen for only 3 seconds, it is frozen until the end of the video.

    I am using VLCplayer 3.0.8 for playback and it shows the following messages for the h.265 video :

    avcodec: Using D3D11VA (NVIDIA GeForce GT 1030, vendor 10de(NVIDIA), device 1d01, revision a1) for hardware decoding
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: hardware acceleration picture allocation failed
    
avcodec error: avcodec_send_packet critical error

    When I disable hardware acceleration in VLCplayer the playback of the h.265 video works fine.

    Next I encoded the h.264 to h.265 using HandBrake 1.3.0 and the resulting h.265 video also works fine in VLCplayer with hardware acceleration enabled.

    So my question is :
    Why is the playback of the h.264 and the h.265-handbrake-videos working fine in VLCplayer but not the h.265-ffmpeg video ?

    When I encode the h.264 to huffyuv and then to h.265 using FFmpeg, the resulting h.265-video also works fine :

    ffmpeg.exe -i h264source.mkv -vcodec huffyuv -an huffyuv.mkv
    
ffmpeg.exe -i huffyuv.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv

    I am using the windows build by Zeranoe, ffmpeg-4.2.2-win64-static.

    Any advices ?

    edit :

    C:\ffmpeg>ffmpeg.exe -loglevel verbose -i h264source.mkv -vcodec libx265 -preset slower -threads 0 -crf 24 -an h265output.mkv
    
ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
    
  built with gcc 9.2.1 (GCC) 20200122
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
    
  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
    
  libswscale      5.  5.100 /  5.  5.100
    
  libswresample   3.  5.100 /  3.  5.100
    
  libpostproc    55.  5.100 / 55.  5.100
    
[h264 @ 000001e8dc09d6c0] Reinit context to 864x480, pix_fmt: yuv420p
    
Input #0, matroska,webm, from 'h264source.mkv':
    
  Metadata:
    
    COMPATIBLE_BRANDS: isomiso2avc1mp41
    
    MAJOR_BRAND     : isom
    
    MINOR_VERSION   : 512
    
    ENCODER         : Lavf58.29.100
    
  Duration: 00:01:55.67, start: 0.000000, bitrate: 958 kb/s
    
    Stream #0:0: Video: h264 (Constrained Baseline), 1 reference frame, yuv420p(progressive, left), 852x480 (864x480) [SAR 1:1 DAR 71:40], 30 fps, 30 tbr, 1k tbn, 60 tbc (default)
    
    Metadata:
    
      ENCODER         : Lavc58.54.100 libx264
    
      DURATION        : 00:01:55.666000000
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> hevc (libx265))
    
Press [q] to stop, [?] for help
    
[h264 @ 000001e8dc77b080] Reinit context to 864x480, pix_fmt: yuv420p
    
[graph 0 input from stream 0:0 @ 000001e8dd38ee40] w:852 h:480 pixfmt:yuv420p tb:1/1000 fr:30/1 sar:1/1 sws_param:flags=2
    
x265 [info]: HEVC encoder version 3.2ßacc5d16999e2
    
x265 [info]: build info [Windows][GCC 9.2.1][64 bit] 8bit+10bit
    
x265 [info]: using cpu capabilities: MMX2 SSE2Fast LZCNT SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
x265 [info]: Main profile, Level-3 (Main tier)
    
x265 [info]: Thread pool created using 16 threads
    
x265 [info]: Slices                              : 1
    
x265 [info]: frame threads / pool features       : 4 / wpp(8 rows)
    
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
    
x265 [info]: Residual QT: max TU size, max depth : 32 / 3 inter / 3 intra
    
x265 [info]: ME / range / subpel / merge         : star / 57 / 4 / 4
    
x265 [info]: Keyframe min / max / scenecut / bias  : 25 / 250 / 40 / 5.00
    
x265 [info]: Lookahead / bframes / badapt        : 40 / 8 / 2
    
x265 [info]: b-pyramid / weightp / weightb       : 1 / 1 / 1
    
x265 [info]: References / ref-limit  cu / depth  : 5 / off / on
    
x265 [info]: AQ: mode / str / qg-size / cu-tree  : 2 / 1.0 / 32 / 1
    
x265 [info]: Rate Control / qCompress            : CRF-24.0 / 0.60
    
x265 [info]: tools: rect amp limit-modes rd=6 psy-rd=2.00 rdoq=2 psy-rdoq=1.00
    
x265 [info]: tools: rskip limit-tu=4 signhide tmvp b-intra
    
x265 [info]: tools: strong-intra-smoothing deblock sao
    
Output #0, matroska, to 'h265output.mkv':
    
  Metadata:
    
    COMPATIBLE_BRANDS: isomiso2avc1mp41
    
    MAJOR_BRAND     : isom
    
    MINOR_VERSION   : 512
    
    encoder         : Lavf58.29.100
    
    Stream #0:0: Video: hevc (libx265), 1 reference frame, yuv420p(left), 852x480 [SAR 1:1 DAR 71:40], q=2-31, 30 fps, 1k tbn, 30 tbc (default)
    
    Metadata:
    
      DURATION        : 00:01:55.666000000
    
      encoder         : Lavc58.54.100 libx265
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
No more output streams to write to, finishing
    
frame= 3178 fps= 14 q=-0.0 Lsize=    5105kB time=00:01:55.56 bitrate= 361.9kbits/s speed=0.506x
    
video:5080kB audio:0kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.492293%
    
Input file #0 (h264source.mkv):
    
  Input stream #0:0 (video): 3178 packets read (13837009 bytes); 3178 frames decoded;
    
  Total: 3178 packets (13837009 bytes) demuxed
    
Output file #0 (h265output.mkv):
    
  Output stream #0:0 (video): 3178 frames encoded; 3178 packets muxed (5201780 bytes);
    
  Total: 3178 packets (5201780 bytes) muxed
    
[AVIOContext @ 000001e8dc77af40] Statistics: 8 seeks, 40 writeouts
    
x265 [info]: frame I:     13, Avg QP:18.10  kb/s: 6779.10
    
x265 [info]: frame P:   1754, Avg QP:22.52  kb/s: 619.00
    
x265 [info]: frame B:   1411, Avg QP:31.19  kb/s: 50.69
    
x265 [info]: Weighted P-Frames: Y:0.0% UV:0.0%
    
x265 [info]: Weighted B-Frames: Y:0.0% UV:0.0%
    
x265 [info]: consecutive B-frames: 67.4% 8.3% 8.6% 10.9% 2.7% 2.0% 0.2% 0.0% 0.0%
    

    
encoded 3178 frames in 228.50s (13.91 fps), 391.87 kb/s, Avg QP:26.35
    
[AVIOContext @ 000001e8dc0936c0] Statistics: 13860805 bytes read, 0 seeks

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