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• FFMPEG - Convert MKV to MP4 with all streams (subtitles) and watermark

  24 juillet 2016, par ShinJii

  I spent few hours researching and still have problem...
  I want to convert .mkv file to .mp4 with watermark and subtitles (from mkv).

  I tried few commands but always error or success with watermark without subtitles.
  Here are some commands I tried (not all) :

  Partial Success - some files are converted with subtitles, but I have 153 files that are converted without subtitles... (both from .mkv to .mp4) :

  ffmpeg -i 025.mkv -vf "movie=logovideo2.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10,subtitles=025.mkv [out]" 25.mp4
  
  
  
  ffmpeg -i 001.mkv -i logovideo2.png -filter_complex "[0:v][1:v]overlay=0:0,subtitles=001.mkv[out]" -map "[out]" -map 0:a -c:s ass 001.mp4

  Fail - command with error :

  ffmpeg -i 001.mkv -i logovideo2.png -filter_complex "[0:v][1:v]overlay=0:0[out]" -map "[out]" -map 0:a -map 0:s -c:s ass 001.mp4

  CODE (with error) :

  ffmpeg version N-81036-g2b14204 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
  
    configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --pkg-config-flags=--static --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libass
  
    libavutil      55. 28.100 / 55. 28.100
  
    libavcodec     57. 50.100 / 57. 50.100
  
    libavformat    57. 42.100 / 57. 42.100
  
    libavdevice    57.  0.102 / 57.  0.102
  
    libavfilter     6. 47.100 /  6. 47.100
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, matroska,webm, from '001.mkv':
  
    Metadata:
  
      title           : DB
  
      encoder         : libebml v1.2.1 + libmatroska v1.1.1
  
      creation_time   : 2011-09-15 16:44:37
  
    Duration: 00:24:39.37, start: 0.000000, bitrate: 1429 kb/s
  
      Stream #0:0(jpn): Audio: vorbis, 48000 Hz, stereo, fltp (default)
  
      Stream #0:1: Video: h264 (High), yuv420p, 720x540 [SAR 1:1 DAR 4:3], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
  
      Stream #0:2(pol): Subtitle: ass (default)
  
      Metadata:
  
        title           : Grupa
  
  Input #1, png_pipe, from 'logovideo2.png':
  
    Duration: N/A, bitrate: N/A
  
      Stream #1:0: Video: png, rgba(pc), 235x50 [SAR 2835:2835 DAR 47:10], 25 tbr, 25 tbn, 25 tbc
  
  File '001.mp4' already exists. Overwrite ? [y/N] y
  
  [libx264 @ 0x43c7a80] using SAR=1/1
  
  [libx264 @ 0x43c7a80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  [libx264 @ 0x43c7a80] profile High, level 3.0
  
  [libx264 @ 0x43c7a80] 264 - core 148 r2 3f5ed56 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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=12 lookahead_threads=2 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=23 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
  
  **[mp4 @ 0x442c9e0] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
      Last message repeated 2 times
  
  [mp4 @ 0x442c9e0] Could not find tag for codec ass in stream #2, codec not currently supported in container**
  
  Output #0, mp4, to '001.mp4':
  
    Metadata:
  
      title           : DB
  
      encoder         : Lavf57.42.100
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 720x540 [SAR 1:1 DAR 4:3], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)
  
      Metadata:
  
        encoder         : Lavc57.50.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(jpn): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        encoder         : Lavc57.50.100 aac
  
      Stream #0:2(pol): Subtitle: ass (default)
  
      Metadata:
  
        title           : Grupa
  
        encoder         : Lavc57.50.100 ass
  
  Stream mapping:
  
    Stream #0:1 (h264) -> overlay:main (graph 0)
  
    Stream #1:0 (png) -> overlay:overlay (graph 0)
  
    overlay (graph 0) -> Stream #0:0 (libx264)
  
    Stream #0:0 -> #0:1 (vorbis (native) -> aac (native))
  
    Stream #0:2 -> #0:2 (ass (ssa) -> ass (native))
  
  **Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument**
  
  [aac @ 0x43bf600] Qavg: -nan

• FFmpeg first frame byte size over 2x size compared to all other frames - w/ 100% keyframes

  22 juillet 2016, par Dustin Kerstein

  I’m encoding an h264 mp4 and am having a small issue with the output byte size of the first frame vs. all other frames. There’s no frame duplication happening, rather just that the first frame always ends up being 2x the byte size of other frames. My use-case requires that the first frame be very similar in size compared to other frame.

  Here are the ffmpeg encoding parameters :

  ffmpeg -framerate 60 -i "C:\Test%4d.jpg" -c:v libx264 -g 1 -vf "scale=3840:2160" -crf 19 -pix_fmt yuv420p C:\Test.mp4

  And the frame details using ffprobe :

  ffprobe C:\Test.mp4 -show_frames -of compact -show_entries frame=pict_type,pkt_size
  
  
  
  ffprobe version N-79143-g8ff0f6a Copyright (c) 2007-2016 the FFmpeg developers
  
    built with gcc 5.3.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --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. 19.100 / 55. 19.100
  
    libavcodec     57. 30.100 / 57. 30.100
  
    libavformat    57. 29.101 / 57. 29.101
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 40.102 /  6. 40.102
  
    libswscale      4.  0.100 /  4.  0.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\users\dusti\downloads\Test.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.29.101
  
    Duration: 00:00:00.17, start: 0.000000, bitrate: 240225 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 3840x2160 [SAR 9:16 DAR 1:1], 240662 kb/s, 60 fps, 60 tbr, 15360 tbn, 120 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
  frame|pkt_size=1377043|pict_type=I
  
  frame|pkt_size=406953|pict_type=I
  
  frame|pkt_size=407200|pict_type=I
  
  frame|pkt_size=406647|pict_type=I
  
  frame|pkt_size=405276|pict_type=I
  
  frame|pkt_size=404715|pict_type=I
  
  frame|pkt_size=403226|pict_type=I
  
  frame|pkt_size=401806|pict_type=I
  
  frame|pkt_size=400750|pict_type=I
  
  frame|pkt_size=400189|pict_type=I

  I’ve confirmed that it’s not just a reporting issue with ffprobe by converting the file with mp4box :

  mp4box.exe -dash 16.666 -frag 16.666 -rap c:\Test.mp4

  Which returns an MPD file :

  <initialization range="0-922"></initialization>
  
        <segmenturl mediarange="923-1378146" indexrange="923-966"></segmenturl>
  
        <segmenturl mediarange="1378147-1785280" indexrange="1378147-1378190"></segmenturl>
  
        <segmenturl mediarange="1785281-2192661" indexrange="1785281-1785324"></segmenturl>
  
        <segmenturl mediarange="2192662-2599489" indexrange="2192662-2192705"></segmenturl>
  
        <segmenturl mediarange="2599490-3004946" indexrange="2599490-2599533"></segmenturl>
  
        <segmenturl mediarange="3004947-3409842" indexrange="3004947-3004990"></segmenturl>
  
        <segmenturl mediarange="3409843-3813249" indexrange="3409843-3409886"></segmenturl>
  
        <segmenturl mediarange="3813250-4215236" indexrange="3813250-3813293"></segmenturl>
  
        <segmenturl mediarange="4215237-4616167" indexrange="4215237-4215280"></segmenturl>
  
        <segmenturl mediarange="4616168-5016537" indexrange="4616168-4616211"></segmenturl>
  
      

  I tried encoding a dummy black frame and it does seem to work around the issue but I’d really prefer to not do that. Here are the frame sizes with the first frame replaced by a pure black frame :

  frame|pkt_size=2173|pict_type=I
  
  frame|pkt_size=466255|pict_type=I
  
  frame|pkt_size=430179|pict_type=I
  
  frame|pkt_size=416652|pict_type=I
  
  frame|pkt_size=411401|pict_type=I
  
  frame|pkt_size=407174|pict_type=I
  
  frame|pkt_size=405377|pict_type=I
  
  frame|pkt_size=403207|pict_type=I
  
  frame|pkt_size=401588|pict_type=I
  
  frame|pkt_size=401200|pict_type=I

  Anyone have any clues on how to control this behavior ? I imagine it might have something to do with the CRF quality algorithm but really have no idea. Any help would be appreciated.

  Thanks,
  Dustin

  Update 7/22/16
  Upon a little more digging I can see that ffmpeg is using a lower QP for the first frame :

  [libx264 @ 05380b60] frame=   0 QP=14.92 NAL=3 Slice:I Poc:0   I:32400 P:0    SKIP:0    size=1485053 bytes
  
  [libx264 @ 05380b60] frame=   1 QP=29.48 NAL=3 Slice:I Poc:0   I:32400 P:0    SKIP:0    size=361196 bytes
  
  [libx264 @ 05380b60] frame=   2 QP=29.48 NAL=3 Slice:I Poc:0   I:32400 P:0    SKIP:0    size=359406 bytes

  But I’ve still not found a way to avoid this behavior. I tried setting qpmin/qpmax to non-default values but that didn’t change anything. Per my comment below, two-pass encoding does not exhibit this behavior. Still looking for a way to use CRF encoding without this large initial frame.

• Adding the Transform video filter to ffmpeg

  1er août 2016, par aaeim

  first off I’m new to ffmpeg, and stackoverflow. so sorry If I’m doing something wrong.

  Earlier I commented on a post related to this but it got deleted because it was not an answer or something. So I’m asking my own question here.

  I followed this instructions https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

  up untill Unzipping the ffmpeg file. Then I followed the facebook instructions

  1. Checkout the source for ffmpeg
  2. Copy vf_transform.c to the libavfilter subdirectory in ffmpeg source
  3. Edit libavfilter/allfilters.c and register the filter by adding the line : REGISTER_FILTER(TRANSFORM, transform, vf) ; in the video filter registration section
  4. Edit libavfilter/Makefile and add the filter to adding the line : OBJS-$(CONFIG_TRANSFORM_FILTER) += vf_transform.o in the filter section
  5. Configure and build ffmpeg as usual

  and finally I ran the remaining instructions from the compilation guide.

  I did the whole process a couple times but The result is always the same when I try to test.

  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
  
  Unknown filter 'transform'.

  I’m on elementary OS.
  Thx and sorry if the post is all wrong.