this also uses avpriv_find_start_code(), though no speed change is expected as
the area searched is generally small
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The encoder has its own tables and does not access the idct_factor
member of the DVVideoContext structure.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The coefficients must be in the appropriate zigzag scan order.
Also fix their values at the same time, as they were pretty wrong.
Fixes ticket #2970.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
It is derived from the actual equations of the specs. In
particular, it is closer to the inverse of what the encoder uses.
fate tests accordingly updated.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Based on ConvertToPlanar() from libutvideo
libutvideo sadly does not seem to support exporting its internal planar buffers
Reviewed-by: Benoit Fouet <benoit.fouet@free.fr>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This has also been independently found and fixed similarly by carl in
f4a3bbf4a3cd375121ea2495817f3e50e831ed48
The 2nd magic check is taken from carls implementation
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Handle it inside the __asm__() block.
Fixes fate-vc1_ilaced_twomv when using the gcc-usan toolchain.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
The bytes per row is a better indication of it.
Helps resolving ticket #3874 by fixing ffmpeg's encoder and transforming
the issue in a issue with non-compliant decoders. ffmpeg's one is ok,
but unfortunately, many others aren't handling correctly unusual chroma
samplings.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This is similar to 20a5956b8d
The difference this change makes affects only rather few files
but looks like:
Stream #0:1: Video: mjpeg, 90k tbr, 90k tbn, 90k tbc
vs.
Stream #0:1: Video: mjpeg, none(bt470bg/unknown/unknown), 90k tbr, 90k tbn, 90k tbc
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This fixes the ratecontrol code with snow
adding FF_MPV_COMMON_OPTS is needed as the generic rate control options
are currently in the (unrelated) MpegEncContext
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '530c1441fd1426b6a4bb33485ff3226e1ae0ad45':
lavc: make lmax/lmin into private options of mpegvideo encoders
Conflicts:
libavcodec/avcodec.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '15ec053c4c0b198a2e93eb8e60c8f41e091e0c40':
lavc: make border_masking into private options of mpegvideo encoders
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '66a68ddd1ac376b24db8695058bc8fc28f5bada6':
lavc: make rc_buffer_aggressivity/rc_initial_cplx into private options of mpegvideo encoders
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'a75c2eb25a62105c09b48521aef429dc8a231637':
lavc: make rc_eq into private options of mpegvideo encoders
Conflicts:
libavcodec/options_table.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '946f95354ba76ef73c9b66889d86ab5fba4fb486':
lavc: make rc_qmod_* into private options of mpegvideo encoders
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'a6e4ce9fd50897dc6d9c2ada4b6b8090de7de5bf':
lavc: make rc_qsquish a private option of mpegvideo encoders
Conflicts:
libavcodec/avcodec.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Currently, this option is accessed through AVCodecContext.mb_threshold,
which originally controlled reusing MB data when transcoding mpeg to
mpeg. Since the libvpx meaning is completely different from the original
mpegvideo meaning, it is better to use a separate private option for
this.
