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Thread: Transcode fail

  1. #1
    Join Date
    Sep 2014
    Posts
    42

    Default Transcode fail

    Trying to watch something over the Mezzmo Web service, get a "TRANSCODE FAILED" for certain content

    ffmpeg version N-78742-gf477849 Copyright (c) 2000-2017 the FFmpeg developers
    built with gcc 4.9.2 (GCC)
    configuration: --arch=x86_64 --target-os=mingw32 --cross-prefix=x86_64-w64-mingw32- --enable-static --disable-shared --enable-zlib --disable-postproc --prefix=/home/peter/ffmpeg/build/gpl64 --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread -lstdc++' --enable-runtime-cpudetect --extra-cflags=-I/home/peter/cc32/include --extra-ldflags=-L/home/peter/cc64/lib --pkg-config=pkg-config --pkg-config-flags=--static --disable-w32threads --enable-libvpx --enable-libvorbis --enable-libtheora --enable-libx265 --enable-cuda --enable-cuvid --enable-dxva2 --enable-libmfx --enable-nvenc --enable-gnutls --extra-libs='-lz -lnettle -lhogweed -lgmp -lidn -lws2_32 -lcrypt32'
    libavutil 55. 74.100 / 55. 74.100
    libavcodec 57.103.100 / 57.103.100
    libavformat 57. 76.100 / 57. 76.100
    libavdevice 57. 7.100 / 57. 7.100
    libavfilter 6.100.100 / 6.100.100
    libswscale 4. 7.102 / 4. 7.102
    libswresample 2. 8.100 / 2. 8.100
    Input #0, mpeg, from 'pipe:':
    Duration: N/A, start: 0.045500, bitrate: N/A
    Stream #0:0[0x1bf]: Data: dvd_nav_packet
    Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first), 720x480 [SAR 8:9 DAR 4:3], Closed Captions, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    Stream #0:2[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
    Codec AVOption x264opts (x264 options) specified for output file #0 (H:\Video\Recorded TV\Transcoded\64BCB691-F930-4325-BAF2-D963EB44E3E8\Video\1019-fake_mp4-h264_qsv-aac-sn.mzt) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
    Codec AVOption partitions (A comma-separated list of partitions to consider. Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all) specified for output file #0 (H:\Video\Recorded TV\Transcoded\64BCB691-F930-4325-BAF2-D963EB44E3E8\Video\1019-fake_mp4-h264_qsv-aac-sn.mzt) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
    Stream mapping:
    Stream #0:1 -> #0:0 (mpeg2video (native) -> h264 (h264_qsv))
    Stream #0:2 -> #0:1 (ac3 (native) -> aac (native))
    Incompatible pixel format 'yuv420p' for codec 'h264_qsv', auto-selecting format 'nv12'
    [h264_qsv @ 000000000033efe0] No device available for encoder (device type qsv for codec h264_qsv).
    [h264_qsv @ 000000000033efe0] Selected ratecontrol mode is not supported by the QSV runtime. Choose a different mode.
    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
    Conversion failed!

    Is there something I should adjust?

    "Incompatible pixel format 'yuv420p' for codec 'h264_qsv'" SAY WHAT??

  2. #2
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,616

    Default

    This is an issue in the latest Mezzmo (v5.2.0.0). We've fixed it for the upcoming release. For the moment, go into the Transcoding Settings dialog and set the hardware acceleration to 'None' for both the decoder and encoder. Transcoding should be OK now.

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
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    Wiki: User Guides & Reference Manual at http://www.mezzmo.com/wiki
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