[FFmpeg-trac] #3161(FFmpeg:new): libvpx crf does nothing
FFmpeg
trac at avcodec.org
Fri Nov 22 21:19:14 CET 2013
#3161: libvpx crf does nothing
------------------------------------+----------------------------------
Reporter: LinAGKar | Owner:
Type: defect | Status: new
Priority: normal | Component: FFmpeg
Version: 2.0.2 | Resolution:
Keywords: libvpx crf | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
------------------------------------+----------------------------------
Comment (by LinAGKar):
crf=4:
{{{
> ffmpeg -i Big\ Buck\ Bunny.mkv -t 15 -an -vcodec libvpx -crf 4 Big\
Buck\ Bunny\ 4.webm
ffmpeg version 2.0.2 Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 19 2013 08:34:03 with gcc 4.7 (SUSE Linux)
configuration: --shlibdir=/usr/lib64 --prefix=/usr
--mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-
static --enable-debug --disable-stripping --extra-cflags='-fmessage-
length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -g -fPIC -I/usr/include/gsm' --enable-gpl
--enable-x11grab --enable-version3 --enable-pthreads --enable-avfilter
--enable-libpulse --enable-libvpx --enable-libopus --enable-libass
--enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-
libspeex --enable-libxvid --enable-libx264 --enable-libschroedinger
--enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-postproc --enable-libdc1394 --enable-librtmp --enable-libfreetype
--enable-avresample --enable-libtwolame --enable-libvo-aacenc
libavutil 52. 38.100 / 52. 38.100
libavcodec 55. 18.102 / 55. 18.102
libavformat 55. 12.100 / 55. 12.100
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 79.101 / 3. 79.101
libavresample 1. 1. 0 / 1. 1. 0
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
Input #0, matroska,webm, from 'Big Buck Bunny.mkv':
Metadata:
ENCODER : Lavf55.12.100
Duration: 00:09:56.46, start: 0.000000, bitrate: 309088 kb/s
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), bgr0, 1920x1080, SAR 1:1
DAR 16:9, 24 fps, 24 tbr, 1k tbn, 1k tbc (default)
Stream #0:1: Audio: flac, 48000 Hz, 5.1(side), s32 (default)
[libvpx @ 0x1eac7a0] v1.1.0
Output #0, webm, to 'Big Buck Bunny 4.webm':
Metadata:
encoder : Lavf55.12.100
Stream #0:0: Video: vp8 (libvpx), yuv420p, 1920x1080 [SAR 1:1 DAR
16:9], q=-1--1, 200 kb/s, 1k tbn, 24 tbc (default)
Stream mapping:
Stream #0:0 -> #0:0 (ffv1 -> libvpx)
Press [q] to stop, [?] for help
frame= 360 fps=6.7 q=0.0 Lsize= 779kB time=00:00:15.00 bitrate=
425.6kbits/s
video:776kB audio:0kB subtitle:0 global headers:0kB muxing overhead
0.394523%
}}}
crf=63:
{{{
> ffmpeg -i Big\ Buck\ Bunny.mkv -t 15 -an -vcodec libvpx -crf 63 Big\
Buck\ Bunny\ 63.webm
ffmpeg version 2.0.2 Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 19 2013 08:34:03 with gcc 4.7 (SUSE Linux)
configuration: --shlibdir=/usr/lib64 --prefix=/usr
--mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-
static --enable-debug --disable-stripping --extra-cflags='-fmessage-
length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -g -fPIC -I/usr/include/gsm' --enable-gpl
--enable-x11grab --enable-version3 --enable-pthreads --enable-avfilter
--enable-libpulse --enable-libvpx --enable-libopus --enable-libass
--enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-
libspeex --enable-libxvid --enable-libx264 --enable-libschroedinger
--enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-postproc --enable-libdc1394 --enable-librtmp --enable-libfreetype
--enable-avresample --enable-libtwolame --enable-libvo-aacenc
libavutil 52. 38.100 / 52. 38.100
libavcodec 55. 18.102 / 55. 18.102
libavformat 55. 12.100 / 55. 12.100
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 79.101 / 3. 79.101
libavresample 1. 1. 0 / 1. 1. 0
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
Input #0, matroska,webm, from 'Big Buck Bunny.mkv':
Metadata:
ENCODER : Lavf55.12.100
Duration: 00:09:56.46, start: 0.000000, bitrate: 309088 kb/s
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), bgr0, 1920x1080, SAR 1:1
DAR 16:9, 24 fps, 24 tbr, 1k tbn, 1k tbc (default)
Stream #0:1: Audio: flac, 48000 Hz, 5.1(side), s32 (default)
[libvpx @ 0x16087a0] v1.1.0
Output #0, webm, to 'Big Buck Bunny 63.webm':
Metadata:
encoder : Lavf55.12.100
Stream #0:0: Video: vp8 (libvpx), yuv420p, 1920x1080 [SAR 1:1 DAR
16:9], q=-1--1, 200 kb/s, 1k tbn, 24 tbc (default)
Stream mapping:
Stream #0:0 -> #0:0 (ffv1 -> libvpx)
Press [q] to stop, [?] for help
frame= 360 fps=6.8 q=0.0 Lsize= 778kB time=00:00:15.00 bitrate=
425.0kbits/s
video:775kB audio:0kB subtitle:0 global headers:0kB muxing overhead
0.391042%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3161#comment:2>
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