[FFmpeg-trac] #4246(avcodec:new): Lossless encoding with VP9 doesn't work
FFmpeg
trac at avcodec.org
Sat Jan 10 15:37:10 CET 2015
#4246: Lossless encoding with VP9 doesn't work
------------------------------------+--------------------------------------
Reporter: SocDemScum | Type: defect
Status: new | Priority: normal
Component: avcodec | Version: git-master
Keywords: libvpx | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
------------------------------------+--------------------------------------
ffmpeg outputs:
{{{
ffmpeg version N-68994-g4df01d5 Copyright (c) 2000-2015 the FFmpeg
developers
built on Jan 9 2015 22:13:35 with gcc 4.9.2 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads
--enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
--enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-
libcaca --
enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc
--enable-lib
modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-
libopencore-amrw
b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-
libschroedinge
r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-
libtwolame --en
able-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
--enab
le-zlib
libavutil 54. 16.100 / 54. 16.100
libavcodec 56. 20.100 / 56. 20.100
libavformat 56. 18.100 / 56. 18.100
libavdevice 56. 3.100 / 56. 3.100
libavfilter 5. 7.100 / 5. 7.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2014-11-29 01:06:17
Duration: 00:03:38.85, start: 0.000000, bitrate: 1959 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
1280x534
[SAR 1:1 DAR 640:267], 1765 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc
(defa
ult)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
stereo, flt
p, 191 kb/s (default)
Metadata:
creation_time : 2014-11-29 01:06:20
handler_name : IsoMedia File Produced by Google, 5-11-2011
File 'Stand.mkv' already exists. Overwrite ? [y/N] y
[libvpx-vp9 @ 0000000004ac00a0] v1.3.0
[libvpx-vp9 @ 0000000004ac00a0] Failed to set VP9E_SET_LOSSLESS codec
control: I
nvalid parameter
[libvpx-vp9 @ 0000000004ac00a0] Additional information: rc_max_quantizer
out o
f range [..0]
[flac @ 000000000449c3a0] encoding as 24 bits-per-sample
Output #0, matroska, to 'Stand.mkv':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
encoder : Lavf56.18.100
Stream #0:0(und): Video: vp9 (libvpx-vp9) (VP90 / 0x30395056),
yuv420p, 1280
x534 [SAR 1:1 DAR 640:267], q=-1--1, 200 kb/s, 23.98 fps, 1k tbn, 23.98
tbc (def
ault)
Metadata:
handler_name : VideoHandler
encoder : Lavc56.20.100 libvpx-vp9
Stream #0:1(und): Audio: flac ([172][241][0][0] / 0xF1AC), 44100 Hz,
stereo,
s32 (24 bit), 128 kb/s (default)
Metadata:
creation_time : 2014-11-29 01:06:20
handler_name : IsoMedia File Produced by Google, 5-11-2011
encoder : Lavc56.20.100 flac
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> vp9 (libvpx-vp9))
Stream #0:1 -> #0:1 (aac (native) -> flac (native))
}}}
when trying to losslessly encode using libvpx-vp9. It says that the
rc_max_quantizer is out of range.
Command used:
{{{
ffmpeg -ss 135.927458197 -t 6.798458327 -i input.mp4 -vcodec libvpx-vp9
-deadline best -profile:v 0 -lossless 1 -g 162 -keyint_min 1 -sc_threshold
50 -frame-parallel 1 -threads 1 -acodec flac -compression_level 8 -threads
1 Stand.mkv
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4246>
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