I am encountering the following error when transcoding using FFMPEG.
It seams to me that it’s an error decoding the VC1 format and has actually nothing to do with the target format (x264) I want to transcode.
I tracked the error to this source-file:
http://cekirdek.pardus.org.tr/~ismail/ffmpeg-docs/vc1_8c-source.html
but I don’t know how to set the profile to a value != simple.
FFMPEG Output:
ffmpeg version 1.1 Copyright (c) 2000-2013 the FFmpeg developers
built on Jan 16 2013 22:52:43 with gcc 4.6.3 (Gentoo 4.6.3 p1.10, pie-0.5.2)
configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --enable-shared --cc=x86_64-pc-linux-gnu-gcc --cxx=x86_64-pc-linux-gnu-g++ --ar=x86_64-pc-linux-gnu-ar --optflags='-O2 -march=native -pipe' --extra-cflags='-O2 -march=native -pipe' --extra-cxxflags='-O2 -march=native -pipe' --disable-static --enable-gpl --enable-postproc --enable-avfilter --disable-stripping --disable-debug --disable-doc --disable-network --disable-vaapi --disable-vdpau --disable-ffplay --disable-runtime-cpudetect --enable-libx264 --disable-indev=v4l2 --disable-indev=alsa --disable-indev=oss --disable-indev=jack --disable-outdev=alsa --disable-outdev=oss --disable-outdev=sdl --enable-libfreetype --disable-amd3dnow --disable-amd3dnowext --disable-altivec --disable-avx --disable-mmxext --disable-vis --disable-neon --cpu=host --enable-hardcoded-tables
libavutil 52. 13.100 / 52. 13.100
libavcodec 54. 86.100 / 54. 86.100
libavformat 54. 59.106 / 54. 59.106
libavdevice 54. 3.102 / 54. 3.102
libavfilter 3. 32.100 / 3. 32.100
libswscale 2. 1.103 / 2. 1.103
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
[NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
[NULL @ 0x1f99a90] Old interlaced mode is not supported
[NULL @ 0x1f99a90] Old WMV3 version detected, some frames may be decoded incorrectly
[NULL @ 0x1f99a90] Old interlaced mode is not supported
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
[NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
[NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
Last message repeated 1 times
[NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
[NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
Last message repeated 1 times
======
---> This goes on forever ... skipped
======
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
[NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
[NULL @ 0x1f99a90] Chroma scaling is not supported, expect wrong picture
[NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
[NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
[NULL @ 0x1f99a90] FASTUVMC unavailable in Simple Profile
[NULL @ 0x1f99a90] LOOPFILTER shall not be enabled in Simple Profile
[vc1 @ 0x1f93760] max_analyze_duration 5000000 reached at 5000000
[vc1 @ 0x1f93760] Could not find codec parameters for stream 0 (Video: vc1): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[vc1 @ 0x1f93760] Estimating duration from bitrate, this may be inaccurate
test.vc1: could not find codec parameters
Here is the CMD-line i use … xD
Basically I stripped EVERYTHING (codec-related and quality-related) because the error happens no matter what I pass …
ffmpeg -i test.vc1 test.mkv
I actually solved this problem by moving the raw VC1-stream into a container before passing it to ffmpeg.
I used mkv but I assume some other container might work as well …
Command-Line:
Regards