New submission from ami_stuff <[email protected]>:
it's painfully slow and the output avi file have insane big size
this happens for most of the codecs I have tested, here is a qt cinepak as an
axample
C:\>ffmpeg -i C:\QT-Cinepak.mov -t 1 -an -vcodec copy C:\QT-Cinepak.avi
FFmpeg version SVN-r26325, Copyright (c) 2000-2011 the FFmpeg developers
built on Jan 13 2011 04:13:55 with gcc 4.4.2
configuration: --enable-gpl --enable-version3 --enable-libgsm --enable-libvorb
is --enable-libtheora --enable-libspeex --enable-libmp3lame --enable-libopenjpeg
--enable-libschroedinger --enable-libopencore_amrwb --enable-libopencore_amrnb
--enable-libvpx --disable-decoder=libvpx --arch=x86 --enable-runtime-cpudetect -
-enable-libxvid --enable-libx264 --enable-librtmp --extra-libs='-lrtmp -lpolarss
l -lws2_32 -lwinmm' --target-os=mingw32 --enable-avisynth --enable-w32threads --
cross-prefix=i686-mingw32- --cc='ccache i686-mingw32-gcc' --enable-memalign-hack
libavutil 50.36. 0 / 50.36. 0
libavcore 0.16. 1 / 0.16. 1
libavcodec 52.108. 0 / 52.108. 0
libavformat 52.92. 0 / 52.92. 0
libavdevice 52. 2. 3 / 52. 2. 3
libavfilter 1.73. 1 / 1.73. 1
libswscale 0.12. 0 / 0.12. 0
Seems stream 1 codec frame rate differs from container frame rate: 1000000.00 (1
000000/1) -> 24.00 (1000000/41667)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\QT-Cinepak.mov':
Metadata:
creation_time : 2002-10-02 22:28:55
Duration: 00:00:05.95, start: 0.000000, bitrate: 783 kb/s
Stream #0.0(eng): Audio: adpcm_ima_qt, 11025 Hz, 2 channels, s16
Metadata:
creation_time : 2002-10-02 22:28:55
Stream #0.1(eng): Video: cinepak, yuv420p, 192x128, 687 kb/s, 24 fps, 24 tbr
, 1000k tbn, 1000k tbc
Metadata:
creation_time : 2002-10-02 22:28:55
Output #0, avi, to 'C:\QT-Cinepak.avi':
Metadata:
creation_time : 2002-10-02 22:28:55
ISFT : Lavf52.92.0
Stream #0.0(eng): Video: cvid / 0x64697663, yuv420p, 192x128, q=2-31, 687 kb
/s, 1000k tbn, 1000k tbc
Metadata:
creation_time : 2002-10-02 22:28:55
Stream mapping:
Stream #0.1 -> #0.0
Press [q] to stop encoding
frame= 24 fps= 8 q=-1.0 Lsize= 22548kB time=0.96 bitrate=192739.6kbits/s
video:81kB audio:0kB global headers:0kB muxing overhead 27746.017656%
File 'QT-Cinepak.mov' not attached - you can download it from
https://roundup.ffmpeg.org/file1309.
----------
files: QT-Cinepak.mov
messages: 13443
priority: normal
status: new
substatus: new
title: something is wrong with transcode of qt to avi
type: bug
________________________________________________
FFmpeg issue tracker <[email protected]>
<https://roundup.ffmpeg.org/issue2549>
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