Carl Eugen writes:
> Sounds like a performance issue that has nothing to do
with mkv vs mov.
Do you mean my system specs? 1080p FFV1.mkv plays back with just a little
stuttering on a core i5 3570k in VLC, but FFV1.mov just doesn't display video
at all, I only get audio on any PC I've tried and the VLC cone appears in the
video display window.
Anyhow it seems that the issue I'm having may have nothing to do with
resolution. It seems that the issue is with the codec id? This error pops upin
ffmpeg with ffv1.mov "[mov @ 0324ac40] Using MS style video codec tag, the file
may be unplayable!" .
The codec id, as displayed by mediainfo for ffv1.mov is 'FFV1', the codec id
for ffv1.mkv is "V_MS/VFW/FOURCC / FFV1"
Here's two ffmpeg logs, one for ffv1.mov, one for ffv1.mkv.
C:\Users\kiera>ffmpeg -f lavfi -i testsrc -t 1 -c:v ffv1 -level 3 -g 1 -pix_fmt
yuv422p10le ffv110.mkv
ffmpeg version N-71346-gdf4fca2 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.9.2 (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-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger
--enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame
--enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
--enable-lzma --enable-decklink --enable-zlib
libavutil 54. 22.101 / 54. 22.101
libavcodec 56. 34.100 / 56. 34.100
libavformat 56. 30.100 / 56. 30.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 13.101 / 5. 13.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, lavfi, from 'testsrc':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240 [SAR
1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
[ffv1 @ 0495c140] bits_per_raw_sample > 8, forcing coder 1
Output #0, matroska, to 'ffv110.mkv':
Metadata:
encoder : Lavf56.30.100
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p10le, 320x240 [SAR 1:1
DAR 4:3], q=2-31, 200 kb/s, 25 fps, 1k tbn, 25 tbc
Metadata:
encoder : Lavc56.34.100 ffv1
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> ffv1 (native))
Press [q] to stop, [?] for help
frame= 25 fps=0.0 q=0.0 Lsize= 87kB time=00:00:01.00 bitrate=
713.1kbits/s
video:85kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 1.923297%
C:\Users\kiera>ffmpeg -f lavfi -i testsrc -t 1 -c:v ffv1 -level 3 -g 1 -pix_fmt
yuv422p10le ffv110.mov
ffmpeg version N-71346-gdf4fca2 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.9.2 (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-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger
--enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame
--enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
--enable-lzma --enable-decklink --enable-zlib
libavutil 54. 22.101 / 54. 22.101
libavcodec 56. 34.100 / 56. 34.100
libavformat 56. 30.100 / 56. 30.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 13.101 / 5. 13.101
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, lavfi, from 'testsrc':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240 [SAR
1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
[ffv1 @ 0324b720] bits_per_raw_sample > 8, forcing coder 1
[mov @ 0324ac40] Using MS style video codec tag, the file may be unplayable!
Output #0, mov, to 'ffv110.mov':
Metadata:
encoder : Lavf56.30.100
Stream #0:0: Video: ffv1, yuv422p10le, 320x240 [SAR 1:1 DAR 4:3], q=2-31,
200 kb/s, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc56.34.100 ffv1
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> ffv1 (native))
Press [q] to stop, [?] for help
frame= 25 fps=0.0 q=0.0 Lsize= 86kB time=00:00:01.00 bitrate=
707.9kbits/s
video:85kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 1.182336%
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