[FFmpeg-trac] #6059(undetermined:new): Convertion from MOV to VP9 produces all frames black
FFmpeg
trac at avcodec.org
Wed Jan 4 17:52:43 EET 2017
#6059: Convertion from MOV to VP9 produces all frames black
-------------------------------------+-------------------------------------
Reporter: | Type: defect
Andriy.Astakhov | Priority: important
Status: new | Version:
Component: | unspecified
undetermined | Blocked By:
Keywords: MOV VP9 | Reproduced by developer: 0
WebM |
Blocking: |
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Convertion from MOV to VP9 produces all frames black.
VP8 as target works fine.
The only workaround I've found is to convert to yuv4 first and after this
convert to VP9. Please note that other encoders I've tried as proxy
(huffyuv, libx264, v210) fail to produce good VP9 file (also all frames
black), only yuv4 works.
Sample MOV file -
https://www.dropbox.com/s/7vh2gnvdsgmxyhx/VP9_black_tint.mov?dl=0
Result VP9 file -
https://www.dropbox.com/s/c6jy0pm5k9qjkqy/VP9_black_tint.webm?dl=0
How to reproduce:
{{{
ffmpeg -y -i VP9_black_tint.mov -c:v libvpx-vp9 -b:v 1M
VP9_black_tint.webm
ffmpeg version N-82966-g6993bb4 Copyright (c) 2000-2016 the FFmpeg
developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-dxva2 --enable-
libmfx -
-enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig
--enable-frei
0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-li
bbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-
libgsm --en
able-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-
amrnb
--enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg
--enable-li
bopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-
libspeex --e
nable-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 --e
nable-lzma --enable-decklink --enable-zlib
libavutil 55. 43.100 / 55. 43.100
libavcodec 57. 70.100 / 57. 70.100
libavformat 57. 61.100 / 57. 61.100
libavdevice 57. 2.100 / 57. 2.100
libavfilter 6. 68.100 / 6. 68.100
libswscale 4. 3.101 / 4. 3.101
libswresample 2. 4.100 / 2. 4.100
libpostproc 54. 2.100 / 54. 2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'VP9_black_tint.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2016-08-15T08:00:06.000000Z
Duration: 00:00:01.00, start: 0.000000, bitrate: 141764 kb/s
Stream #0:0(eng): Video: qtrle (rle / 0x20656C72), rgb24, 470x446,
141712 k
b/s, SAR 1:1 DAR 235:223, 30 fps, 30 tbr, 30 tbn, 30 tbc (default)
Metadata:
creation_time : 2016-08-15T08:00:06.000000Z
handler_name : +сЁрсюЄўшъ яёхтфюэшьют Apple
encoder : T¬+М+Л+ПтАбTЖ+ЛTЗ
timecode : 00:00:00:00
Stream #0:1(eng): Data: none (tmcd / 0x64636D74), 0 kb/s (default)
Metadata:
creation_time : 2016-08-15T08:00:07.000000Z
handler_name : +сЁрсюЄўшъ яёхтфюэшьют Apple
timecode : 00:00:00:00
[libvpx-vp9 @ 000000000031cce0] v1.6.0
Output #0, webm, to 'VP9_black_tint.webm':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
encoder : Lavf57.61.100
Stream #0:0(eng): Video: vp9 (libvpx-vp9), gbrp, 470x446 [SAR 1:1 DAR
235:22
3], q=-1--1, 1000 kb/s, 30 fps, 1k tbn, 30 tbc (default)
Metadata:
creation_time : 2016-08-15T08:00:06.000000Z
handler_name : +сЁрсюЄўшъ яёхтфюэшьют Apple
timecode : 00:00:00:00
encoder : Lavc57.70.100 libvpx-vp9
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream mapping:
Stream #0:0 -> #0:0 (qtrle (native) -> vp9 (libvpx-vp9))
Press [q] to stop, [?] for help
frame= 26 fps=0.0 q=0.0 size= 0kB time=00:00:00.03 bitrate=
102.1kbits/s
frame= 30 fps= 24 q=0.0 size= 0kB time=00:00:00.16 bitrate=
20.7kbits/s
frame= 30 fps=4.7 q=0.0 Lsize= 189kB time=00:00:00.96
bitrate=1596.9kbits/
s speed=0.15x
video:188kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing o
verhead: 0.351604%
}}}
This works fine (to VP8):
{{{
ffmpeg -y -i VP9_black_tint.mov -c:v libvpx -b:v 1M VP8_OK.webm
}}}
This also works fine (to VP9 with yuv4 as proxy):
{{{
ffmpeg -y -i VP9_black_tint.mov -c:v yuv4 proxy.avi
ffmpeg -y -i proxy.avi -c:v libvpx-vp9 -b:v 1M VP9_good.webm
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6059>
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