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• ffmpeg vaapi hardware acceleration with some videos not working

  15 juillet 2020, par Maisen1886

  I have a problem with transcoding various videos on my Synology NAS. Some videos work, some do not.

  


  ffmpeg command :

  


  sudo /volume1/@appstore/VideoStation/bin/ffmpeg -y -hwaccel vaapi -vaapi_device /dev/dri/renderD128 -i '/path/to/my/video/IMG_8647.MOV' -vf hwupload,scale_vaapi=w=640:h=-1:format=nv12 -c:v h264_vaapi -b:v 2M -movflags +faststart 'path/to/output4.mp4'


  


  After i enter the command above, i get following error output :

  


  ffmpeg version 3.3.7 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 4.9.3 (crosstool-NG 1.20.0) 20150311 (prerelease)
  configuration: --prefix=/usr/pkg --incdir='${prefix}/include/ffmpeg' --arch=i686 --target-os=linux --cross-prefix=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu- --enable-cross-compile --enable-optimizations --enable-pic --enable-gpl --enable-version3 --enable-nonfree --enable-encoders --enable-pthreads --disable-muxer=image2 --disable-muxer=image2pipe --disable-swscale-alpha --disable-ffplay --disable-ffserver --disable-doc --disable-devices --disable-bzlib --disable-altivec --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libmp3lame --disable-decoder=amrnb --disable-encoder=zmbv --disable-encoder=dca --disable-decoder=dca --disable-encoder=ac3 --disable-encoder=ac3_fixed --disable-encoder=eac3 --disable-decoder=eac3 --disable-encoder=truehd --disable-decoder=truehd --extra-cflags=-I/usr/local/x86_64-pc-linux-gnu/x86_64-pc-linux-gnu/sys-root/usr/pkg/include --extra-ldflags=-L/usr/local/x86_64-pc-linux-gnu/x86_64-pc-linux-gnu/sys-root/usr/pkg/lib --cc=/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu-ccache-gcc --enable-shared --disable-static --enable-yasm --enable-libx264 --enable-vaapi --enable-encoder=h264_vaapi --enable-encoder=libx264
  libavutil      55. 58.100 / 55. 58.100
  libavcodec     57. 89.100 / 57. 89.100
  libavformat    57. 71.100 / 57. 71.100
  libavdevice    57.  6.100 / 57.  6.100
  libavfilter     6. 82.100 /  6. 82.100
  libswscale      4.  6.100 /  4.  6.100
  libswresample   2.  7.100 /  2.  7.100
  libpostproc    54.  5.100 / 54.  5.100
libva info: VA-API version 1.1.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /var/packages/VideoStation/target/lib/libva/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_1_1
libva info: va_openDriver() returns 0
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/volume1/homes/maisen20/Drive/iPhone Medien Neu/2020/06/Videos/2020-06-28_19-25-54_IMG_8647.MOV':
  Metadata:
    major_brand     : qt  
    minor_version   : 0
    compatible_brands: qt  
    creation_time   : 2020-06-28T17:25:54.000000Z
    com.apple.quicktime.location.ISO6709: +47.1156+009.0640+430.715/
    com.apple.quicktime.make: Apple
    com.apple.quicktime.model: iPhone X
    com.apple.quicktime.software: 13.5.1
    com.apple.quicktime.creationdate: 2020-06-28T19:25:54+0200
  Duration: 00:00:25.10, start: 0.000000, bitrate: 50256 kb/s
    Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709), 3840x2160, 50115 kb/s, 60.01 fps, 60 tbr, 600 tbn, 600 tbc (default)
    Metadata:
      rotate          : 90
      creation_time   : 2020-06-28T17:25:54.000000Z
      handler_name    : Core Media Data Handler
      encoder         : HEVC
    Side data:
      displaymatrix: rotation of -90.00 degrees
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 98 kb/s (default)
    Metadata:
      creation_time   : 2020-06-28T17:25:54.000000Z
      handler_name    : Core Media Data Handler
    Stream #0:2(und): Data: none (mebx / 0x7862656D), 26 kb/s (default)
    Metadata:
      creation_time   : 2020-06-28T17:25:54.000000Z
      handler_name    : Core Media Data Handler
    Stream #0:3(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
    Metadata:
      creation_time   : 2020-06-28T17:25:54.000000Z
      handler_name    : Core Media Data Handler
Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> h264 (h264_vaapi))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
Impossible to convert between the formats supported by the filter 'graph 0 input from stream 0:0' and the filter 'auto_scaler_0'
Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while processing the decoded data for stream #0:0


  


  Unfortunately I do not know that much about transcoding videos. Does anyone know what the problem here could be ?

  


  Without hardware support (without -hwaccel_output_format vaapi) it works.

  


  thanks a lot !

  


• FFMpeg C++ encoder fails with hardware acceleration quick sync intel

  28 août 2022, par teals

  I am trying to debug an issue I have with a simple C++ encoder using FFMmpeg. The following code below works correctly on these other hardware acceleration systems/platforms :

  


  

  • Mac/VideoToolbox,

  


  • Cuda/NVEnc

  


  • Raspberry pi/h264_v4l2m2m.

  


  


  It fails on intel quick sync at avcodec_open2. I'm using Ubuntu 22.04. I built FFMpeg from source with the Intel Media SDK installed and configured. I verified that the QuickSync install works. I also have a corresponding decoder implementation that works correctly using intel quick sync. So I know everything properly installed. I am also running this on an 11th Gen Intel CPU.

  


  [hevc_qsv @ 0x564b0d34f0c0] Low power mode is unsupported (This sometimes shows up)
[hevc_qsv @ 0x563691234000] some encoding parameters are not supported by the QSV runtime. Please double check the input parameters.
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height


  


  This is the only error that I get and I haven't found any helpful resources. I tried playing around with different parameters but nothing seems to work. Any help or insight would be extremely helpful.

  


  bool VideoEncoder::create() {&#xA;    char const* outfile = filePath.c_str();&#xA;&#xA;     // open output format context&#xA;    int ret = avformat_alloc_output_context2(&amp;ofctx, nullptr, nullptr, outfile);&#xA;    if (ret &lt; 0) {&#xA;        std::cerr &lt;&lt; "fail to avformat_alloc_output_context2(" &lt;&lt; outfile &lt;&lt; "): ret=" &lt;&lt; ret;&#xA;        return false;&#xA;    }&#xA;&#xA;    // create new video stream&#xA;    const AVCodec* codec = avcodec_find_encoder_by_name(encoderName.c_str());&#xA;    vstrm = avformat_new_stream(ofctx, codec);&#xA;    if (!vstrm) {&#xA;        std::cerr &lt;&lt; "fail to avformat_new_stream";&#xA;        return false;&#xA;    }&#xA;&#xA;    // open video encoder&#xA;    cctx = avcodec_alloc_context3(codec);&#xA;    if (!vstrm) {&#xA;        std::cerr &lt;&lt; "fail to avcodec_alloc_context3";&#xA;        return false;&#xA;    }&#xA;    const AVRational dst_fps = {fps, 1};&#xA;    cctx->width = width;&#xA;    cctx->height = height;&#xA;    if(pixel_format != AV_PIX_FMT_NONE) {&#xA;        cctx->pix_fmt = pixel_format;&#xA;    }&#xA;    else {&#xA;        cctx->pix_fmt = codec->pix_fmts[0];&#xA;    }&#xA;    cctx->time_base = av_inv_q(dst_fps);&#xA;    cctx->framerate = dst_fps;&#xA;    cctx->bit_rate = bitrate * 1000000;&#xA;&#xA;&#xA;    AVDictionary* options = nullptr;&#xA;    if(gpu_id >= 0) {&#xA;        av_dict_set_int(&amp;options, "gpu", gpu_id, 0);&#xA;    }&#xA;&#xA;    &#xA;    if (ofctx->oformat->flags &amp; AVFMT_GLOBALHEADER)&#xA;        cctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;&#xA;    ret = avcodec_open2(cctx, codec, &amp;options);&#xA;    if (ret &lt; 0) {&#xA;        std::cerr &lt;&lt; "fail to avcodec_open2: ret=" &lt;&lt; ret;&#xA;        return false;&#xA;    }&#xA;    avcodec_parameters_from_context(vstrm->codecpar, cctx);&#xA;&#xA;    //For mac/quicktime we need to add hvc1 tag.&#xA;    if (encoderName.find("hevc") != std::string::npos) {&#xA;        vstrm->codecpar->codec_tag = MKTAG(&#x27;h&#x27;, &#x27;v&#x27;, &#x27;c&#x27;, &#x27;1&#x27;);&#xA;    }&#xA;&#xA;    /*&#xA;    std::cout&#xA;        &lt;&lt; "outfile: " &lt;&lt; outfile &lt;&lt; "\n"&#xA;        &lt;&lt; "format:  " &lt;&lt; ofctx->oformat->name &lt;&lt; "\n"&#xA;        &lt;&lt; "vcodec:  " &lt;&lt; codec->name &lt;&lt; "\n"&#xA;        &lt;&lt; "size:    " &lt;&lt; width &lt;&lt; &#x27;x&#x27; &lt;&lt; height &lt;&lt; "\n"&#xA;        &lt;&lt; "fps:     " &lt;&lt; av_q2d(cctx->framerate) &lt;&lt; "\n"&#xA;        &lt;&lt; "pixfmt:  " &lt;&lt; av_get_pix_fmt_name(cctx->pix_fmt) &lt;&lt; "\n"&#xA;        &lt;&lt; std::flush;*/&#xA;&#xA;    // initialize sample scaler&#xA;    swsCtx = sws_getContext(&#xA;        width, height, AV_PIX_FMT_BGR24,&#xA;        width, height, cctx->pix_fmt,&#xA;        SWS_BILINEAR, nullptr, nullptr, nullptr);&#xA;    if (!swsCtx) {&#xA;        std::cerr &lt;&lt; "fail to sws_getContext";&#xA;        return false;&#xA;    }&#xA;&#xA;    // allocate frame buffer for encoding&#xA;    frame = av_frame_alloc();&#xA;    frame->width = width;&#xA;    frame->height = height;&#xA;    frame->format = static_cast<int>(cctx->pix_fmt);&#xA;    ret = av_frame_get_buffer(frame, 32);&#xA;    if (ret &lt; 0) {&#xA;        std::cerr &lt;&lt; "fail to av_frame_get_buffer: ret=" &lt;&lt; ret;&#xA;        return false;&#xA;    }&#xA;&#xA;    // allocate packet to retrive encoded frame&#xA;    pkt = av_packet_alloc();&#xA;    // open output IO context&#xA;    ret = avio_open2(&amp;ofctx->pb, outfile, AVIO_FLAG_WRITE, nullptr, nullptr);&#xA;    if (ret &lt; 0) {&#xA;        std::cerr &lt;&lt; "fail to avio_open2: ret=" &lt;&lt; ret;&#xA;        return false;&#xA;    }&#xA;&#xA;    // write media container header (if any)&#xA;    ret = avformat_write_header(ofctx, nullptr);&#xA;    if (ret &lt; 0) {&#xA;        std::cerr &lt;&lt; "fail to avformat_write_header: ret=" &lt;&lt; ret;&#xA;        return false;&#xA;    }&#xA;&#xA;    return true;&#xA;}&#xA;</int>

  


• Revision 77f88e97fa : Combined motion compensation with scaled predictors This patch extends the prev

  20 février 2013, par John Koleszar

  Changed Paths : Modify /vp9/common/vp9_onyxc_int.h Modify /vp9/decoder/vp9_decodemv.c Modify /vp9/decoder/vp9_decodframe.c Modify /vp9/encoder/vp9_onyx_if.c Modify /vp9/encoder/vp9_onyx_int.h Modify /vp9/encoder/vp9_rdopt.c Combined motion compensation with scaled predictors This (...)