Commit Graph

170 Commits

Author SHA1 Message Date
Alex Beregszaszi
a69b930cd3 clamp intra matrix to 8bit for mjpeg (workaround for qscale>=25)
Originally committed as revision 451 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-07 17:55:02 +00:00
Alex Beregszaszi
723106b279 added support for various app headers, and writin FFmpeg comment
Originally committed as revision 450 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-07 17:21:38 +00:00
Michael Niedermayer
1c3a2382d0 correct quantizer bias
Originally committed as revision 438 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-03 21:38:02 +00:00
Alex Beregszaszi
af289048d8 patch by Alex Beregszaszi <alex@naxine.org>
- AVID (AVRn) support (workaround)
- print error instead of failing for unsupported SOF
- fixed the 0<code<FF range checking

Originally committed as revision 435 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-03 16:34:40 +00:00
Arpi
e84c31dc88 Support for external huffman table and various fixes by Alex Beregszaszi <alex@naxine.org>
Originally committed as revision 429 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-05-01 18:12:04 +00:00
Michael Niedermayer
d7e9533aa0 fixed msmpeg4 infinite loop if buggy stream
rewrote quantizer
 fixed bias (+10% compression/quality for h263 like codecs)
 qscale=1 support
 mpeg1 intra frames looks far less blocky
added codec_id field

Originally committed as revision 423 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-04-27 12:30:26 +00:00
Michael Niedermayer
17592475b3 alternative bitstream writer (disabled by default, uncomment #define ALT_BISTREAM_WRITER in common.h if u want to try it)
Originally committed as revision 295 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-02-12 15:43:16 +00:00
Arpi
80e103d04c PATCH by Rik Snel <rsnel@cube.dyndns.org>
this patch enhances the jpeg header writer. It can be asked to omit
quantisation and huffman tables and it can write different horizontal and
vertical sampling factors. (the last thing is useless for libavcodec
itself (because libavcodec only handles YUV420P at ecoder level), but the
values are initialized so that operation of libavcodec is not impaired)

Originally committed as revision 290 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-02-09 01:23:41 +00:00
Michael Niedermayer
d8c2efac4b width or height %16 != 0 bugfix
Originally committed as revision 287 to svn://svn.ffmpeg.org/ffmpeg/trunk
2002-02-07 02:08:36 +00:00
Fabrice Bellard
a74127c071 win32 fixes
Originally committed as revision 110 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-15 22:33:03 +00:00
Fabrice Bellard
9d02db7a17 fix got_picture output
Originally committed as revision 99 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-15 13:10:39 +00:00
Fabrice Bellard
1a56543279 win32 fixes
Originally committed as revision 84 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-13 21:48:05 +00:00
Fabrice Bellard
991ae7b6a4 added interlaced MJPEG support
Originally committed as revision 70 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-11 19:03:30 +00:00
Fabrice Bellard
486171d7ba return dummy quality to avoid bug in -sameq case - forgot emms in error case
Originally committed as revision 60 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-08 22:11:48 +00:00
Fabrice Bellard
186f8ae1f5 added forgotten emms() - fix various segmentation faults when using mjpeg
Originally committed as revision 57 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-08 19:08:50 +00:00
Fabrice Bellard
47476fa9fd fixed mjpeg matrix quant encoding and decoding
Originally committed as revision 48 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-07 22:46:19 +00:00
Fabrice Bellard
bbc0d0c1fe use default huffman tables if none given
Originally committed as revision 40 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-06 02:46:46 +00:00
Fabrice Bellard
b182e68ac5 added 422P and 444P support - fixed block parsing error
Originally committed as revision 39 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-06 01:54:05 +00:00
Fabrice Bellard
e23884046d added correct component id handling
Originally committed as revision 37 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-06 01:04:59 +00:00
Fabrice Bellard
10b7b472d9 added MJPEG decoder, renamed mjpegenc.c to mjpeg.c
Originally committed as revision 34 to svn://svn.ffmpeg.org/ffmpeg/trunk
2001-08-06 00:44:48 +00:00