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ffmpeg / libavcodec @ bb71e317

# Date Author Comment
bb71e317 04/30/2002 01:29 AM Michael Niedermayer

fixing msmpeg4v3 dc-scale for quantizers 24-31

Originally committed as revision 427 to svn://svn.ffmpeg.org/ffmpeg/trunk

f94985d0 04/27/2002 02:10 PM Michael Niedermayer

detecting xvid/divx4/opendivx and set low_delay flag

Originally committed as revision 425 to svn://svn.ffmpeg.org/ffmpeg/trunk

2417652e 04/27/2002 01:12 PM Michael Niedermayer

export mbskip_table for direct rendering
add hurry_up support

Originally committed as revision 424 to svn://svn.ffmpeg.org/ffmpeg/trunk

d7e9533a 04/27/2002 12:30 PM Michael Niedermayer

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

1ac9248b 04/26/2002 07:18 AM Zdenek Kabelac
  • cleanup

Originally committed as revision 422 to svn://svn.ffmpeg.org/ffmpeg/trunk

cd8e5f96 04/24/2002 12:18 PM Zdenek Kabelac
  • fixes problem with -funroll-loops and buggy gcc compiler

Originally committed as revision 421 to svn://svn.ffmpeg.org/ffmpeg/trunk

1c2a8c7f 04/24/2002 01:24 AM Michael Niedermayer

avcodec_flush_buffers()

Originally committed as revision 420 to svn://svn.ffmpeg.org/ffmpeg/trunk

eeba58cc 04/23/2002 08:52 AM Zdenek Kabelac
  • path to ffmpegs config.h

Originally committed as revision 419 to svn://svn.ffmpeg.org/ffmpeg/trunk

d697b89b 04/22/2002 09:02 PM Michael Niedermayer

segfault fix

Originally committed as revision 418 to svn://svn.ffmpeg.org/ffmpeg/trunk

57514323 04/22/2002 07:57 PM Zdenek Kabelac
  • using liba52

Originally committed as revision 417 to svn://svn.ffmpeg.org/ffmpeg/trunk

623563c0 04/22/2002 07:57 PM Zdenek Kabelac
  • using some small char buffer - needed for sprintf

Originally committed as revision 416 to svn://svn.ffmpeg.org/ffmpeg/trunk

1ff662cc 04/22/2002 07:04 PM Michael Niedermayer

export delay info
fixed low_delay & vo_type on mpeg4 header writer & parser

Originally committed as revision 415 to svn://svn.ffmpeg.org/ffmpeg/trunk

8d4c65d1 04/22/2002 05:33 PM Michael Niedermayer

b-frame mpeg4 fix when seeking

Originally committed as revision 414 to svn://svn.ffmpeg.org/ffmpeg/trunk

eec1c6b9 04/22/2002 12:45 PM Michael Niedermayer

divx 5.01 support

Originally committed as revision 412 to svn://svn.ffmpeg.org/ffmpeg/trunk

976f969b 04/22/2002 10:27 AM Zdenek Kabelac
  • add support for liba52

Originally committed as revision 411 to svn://svn.ffmpeg.org/ffmpeg/trunk

ee6f7861 04/21/2002 11:47 PM Michael Niedermayer

fix b-frame MB skip

Originally committed as revision 410 to svn://svn.ffmpeg.org/ffmpeg/trunk

ba8d0be9 04/21/2002 10:41 PM Michael Niedermayer

rounding bugfix

Originally committed as revision 409 to svn://svn.ffmpeg.org/ffmpeg/trunk

8b4c7dbc 04/21/2002 09:18 PM Michael Niedermayer

fixed ratecontrol & b-frames
2pass ratecontrol
fixed hq with 2pass
inceased build num (a few more vars for the rc stuff)
hopefully no new bugs

Originally committed as revision 408 to svn://svn.ffmpeg.org/ffmpeg/trunk

2c029cd1 04/20/2002 09:17 PM Arpi

postprocess array increased to handle images up to 2048x1536

Originally committed as revision 407 to svn://svn.ffmpeg.org/ffmpeg/trunk

91029be7 04/19/2002 03:25 AM Michael Niedermayer

much better ME for b frames (a bit slow though)
fixed MC rounding for b frames
fixed hq mode with b-frames

Originally committed as revision 406 to svn://svn.ffmpeg.org/ffmpeg/trunk

1f0cd30f 04/17/2002 06:19 PM Michael Niedermayer

fixing hq mode with mpeg1 and 2-pass

Originally committed as revision 405 to svn://svn.ffmpeg.org/ffmpeg/trunk

9dbf1ddd 04/17/2002 04:30 PM Michael Niedermayer

mpeg2/mpeg4 dequantizer support (c & mmx)
mpeg1 dequantizer optimizations

Originally committed as revision 404 to svn://svn.ffmpeg.org/ffmpeg/trunk

9dbcbd92 04/17/2002 04:32 AM Michael Niedermayer

fixed mpeg4 time stuff on encoding
mpeg4 b-frame enoding support
removed old, out-commented ratecontrol
reuse motion compensation code between encoding & decoding
prefix newly added global functions with ff_ to reduce namespace polution
b-frame ME (unfinished, but working)...

076b09e9 04/15/2002 12:52 PM Zdenek Kabelac
  • minor - slightly modified debug message

Originally committed as revision 401 to svn://svn.ffmpeg.org/ffmpeg/trunk

4b1f4f23 04/15/2002 02:28 AM Juanjo

- Versions defined for libav/libavcodec.
- Bug fix in wav muxer for MP2 audio.
- ffmpeg/libavcodec version in MPEG-4 user data.

Originally committed as revision 400 to svn://svn.ffmpeg.org/ffmpeg/trunk

101bea5f 04/14/2002 10:17 PM Juanjo

- ME method compatibility with legacy apps.
- Please use AVCodecContext's me_method now.

Originally committed as revision 399 to svn://svn.ffmpeg.org/ffmpeg/trunk

e4986da9 04/14/2002 06:57 PM Juanjo

- ME setting moved to AVCodecContext/MpegEncContext, no longer a global.
- EPZS ME algo used by default.
- HQ flag activated for ffmpeg.
- Cosmetics ...

Originally committed as revision 398 to svn://svn.ffmpeg.org/ffmpeg/trunk

e0d2714a 04/09/2002 04:52 AM Juanjo

- Fixed AC3 decoding for 5:1 AC3 streams. Now when calling av_audio_decode for
AC3 set avcodec_context->channels to the desired number channels, if the
setting is 0 AC3 decoder will set it to the channels found in the
stream.
- Changed ffmpeg to cope with the new "way" of AC3 decoding....

9f862d11 04/09/2002 12:37 AM Juanjo

- PIX_FMT_ANY = -1 to avoid breaking any stuff that could be using it.
Thanks to D Richard Felker III for his comments.

Originally committed as revision 392 to svn://svn.ffmpeg.org/ffmpeg/trunk

dbc598bb 04/09/2002 12:08 AM Juanjo

- Commented out PIX_FMT_ANY by now. It seems that not all codecs are setting
the PIX_FMT_ so they get PIX_FMT_ANY instead of PIX_FMT_YUV420P which
obviuosly annoys ffmpeg.

Originally committed as revision 391 to svn://svn.ffmpeg.org/ffmpeg/trunk

bc657ac3 04/08/2002 09:03 PM Zdenek Kabelac
  • using pixtype as enum - by Philip Gladstone

Originally committed as revision 389 to svn://svn.ffmpeg.org/ffmpeg/trunk

30b68f33 04/08/2002 12:08 PM Zdenek Kabelac
  • encoding of AC3 with more than 2 channels
    by Takashi Iwai <>

Originally committed as revision 383 to svn://svn.ffmpeg.org/ffmpeg/trunk

10bb7023 04/07/2002 09:44 PM Juanjo

- Added force_pts to av_write_packet() to be able to force PTS, this helps
(and fix) stream copying. By now force_pts it's just honoured by the MPEG
muxer. ASF could honour this also, but it should be fixed to use Tickers
first.
- MPEG audio decoder exports it's frame size in bytes....

3bf43d42 04/07/2002 02:03 AM Michael Niedermayer

mpeg4 mpeg quantizer support

Originally committed as revision 381 to svn://svn.ffmpeg.org/ffmpeg/trunk

e1a9dbff 04/06/2002 10:29 PM Michael Niedermayer

wmv1 header parser (unfinished)

Originally committed as revision 380 to svn://svn.ffmpeg.org/ffmpeg/trunk

3825cd1d 04/05/2002 09:04 PM Michael Niedermayer

msmpeg4v2 encoding

Originally committed as revision 379 to svn://svn.ffmpeg.org/ffmpeg/trunk

2ed627e6 04/05/2002 04:51 PM Michael Niedermayer

fixing msmpeg4v2 bugs (is bugfree now afaik)

Originally committed as revision 378 to svn://svn.ffmpeg.org/ffmpeg/trunk

3c4f1840 04/05/2002 04:23 AM Michael Niedermayer

b frames & slices bugfix

Originally committed as revision 377 to svn://svn.ffmpeg.org/ffmpeg/trunk

84afee34 04/05/2002 04:09 AM Michael Niedermayer

msmpeg4v2 decoding (no encoding yet)

Originally committed as revision 376 to svn://svn.ffmpeg.org/ffmpeg/trunk

fcb609f4 04/04/2002 08:04 PM Michael Niedermayer

dump_stream support (nicely formated 0s and 1s)

Originally committed as revision 375 to svn://svn.ffmpeg.org/ffmpeg/trunk

5b403c40 04/04/2002 07:50 PM Michael Niedermayer

emms was missing, found by juanjo but he didnt commit it?!

Originally committed as revision 374 to svn://svn.ffmpeg.org/ffmpeg/trunk

c60cf138 04/01/2002 05:40 PM Michael Niedermayer

fixing MVs in hq mode

Originally committed as revision 372 to svn://svn.ffmpeg.org/ffmpeg/trunk

0344cd0a 04/01/2002 01:24 PM Alex Beregszaszi

multiple init bugfix (patch by Alex Beregszaszi <>)

Originally committed as revision 371 to svn://svn.ffmpeg.org/ffmpeg/trunk

ff3dfbae 03/30/2002 09:33 PM Michael Niedermayer

fixing 1/0

Originally committed as revision 370 to svn://svn.ffmpeg.org/ffmpeg/trunk

14ae07d8 03/29/2002 05:15 AM Michael Niedermayer

divx5-gmc bug workaround

Originally committed as revision 369 to svn://svn.ffmpeg.org/ffmpeg/trunk

7f89b6fb 03/29/2002 02:07 AM Michael Niedermayer

msmpeg4v2 header parser & some dump bits code behind #if 0

Originally committed as revision 368 to svn://svn.ffmpeg.org/ffmpeg/trunk

dbbe8999 03/29/2002 01:53 AM Michael Niedermayer

minor optimizations / simplifications

Originally committed as revision 367 to svn://svn.ffmpeg.org/ffmpeg/trunk

60e575ac 03/28/2002 11:07 PM Arpi

using Juanjo's way to pass forced type - especially as I_TYPE/P_TYPE defines aren't exported in the public interface, and the flagged method matches the way as qscale forcing work

Originally committed as revision 366 to svn://svn.ffmpeg.org/ffmpeg/trunk

4d69fbc9 03/28/2002 10:50 PM Michael Niedermayer

force frame type for 2-pass encoding

Originally committed as revision 365 to svn://svn.ffmpeg.org/ffmpeg/trunk

649c00c9 03/28/2002 01:41 PM Michael Niedermayer

sizeof(s->block) isnt 64*6*2 anymore bugfix
mpeg12 decoding optimization

Originally committed as revision 364 to svn://svn.ffmpeg.org/ffmpeg/trunk

cf8039b2 03/28/2002 04:25 AM Michael Niedermayer

mpeg4 4MV encoding

Originally committed as revision 363 to svn://svn.ffmpeg.org/ffmpeg/trunk

ba6802de 03/27/2002 09:25 PM Michael Niedermayer

4MV motion estimation (not finished yet)
SAD functions rewritten (8x8 support & MMX2 optimizations)
HQ inter/intra decission
msmpeg4 encoding bugfix (MV where too long)

Originally committed as revision 362 to svn://svn.ffmpeg.org/ffmpeg/trunk

2a164b25 03/25/2002 03:36 PM Michael Niedermayer

optimizing mpeg4_encode_dc

Originally committed as revision 361 to svn://svn.ffmpeg.org/ffmpeg/trunk

9c15096e 03/24/2002 11:45 PM Michael Niedermayer

fcode_tables where too small, found by Klaas-Pieter Vlieg <>

Originally committed as revision 360 to svn://svn.ffmpeg.org/ffmpeg/trunk

d633c2c0 03/24/2002 10:02 PM Michael Niedermayer

b-frame decoding bugfix

Originally committed as revision 359 to svn://svn.ffmpeg.org/ffmpeg/trunk

49092244 03/24/2002 09:25 PM Michael Niedermayer

resync marker support, needed for some mp4 files

Originally committed as revision 358 to svn://svn.ffmpeg.org/ffmpeg/trunk

122546a6 03/24/2002 04:58 AM Michael Niedermayer

seems the old intra/inter decission is slightly better with a threshold, than the new one

Originally committed as revision 357 to svn://svn.ffmpeg.org/ffmpeg/trunk

174489bd 03/24/2002 04:16 AM Michael Niedermayer

10l (motion_val was uninitilized)
20l (first frame of a gop could be a p-frame sometimes)
add hq flag to MpegEncContext

Originally committed as revision 356 to svn://svn.ffmpeg.org/ffmpeg/trunk

9d2a0355 03/23/2002 08:21 PM Michael Niedermayer

fixing motion estimation with h263p hopefully

Originally committed as revision 355 to svn://svn.ffmpeg.org/ffmpeg/trunk

098eefe1 03/23/2002 05:43 PM Michael Niedermayer

statistics for 2-pass encoding

Originally committed as revision 354 to svn://svn.ffmpeg.org/ffmpeg/trunk

b1563bfe 03/23/2002 01:00 PM Michael Niedermayer

dont return -1 if mpeg4 scalability ...

Originally committed as revision 353 to svn://svn.ffmpeg.org/ffmpeg/trunk

b3987771 03/23/2002 12:39 PM Michael Niedermayer

better inter/intra decission algo (same as xvid)

Originally committed as revision 352 to svn://svn.ffmpeg.org/ffmpeg/trunk

72a52b31 03/23/2002 12:31 AM Michael Niedermayer

fixing MV range in h263

Originally committed as revision 351 to svn://svn.ffmpeg.org/ffmpeg/trunk

2efe097a 03/22/2002 11:28 PM Michael Niedermayer

more aspect stuff

Originally committed as revision 350 to svn://svn.ffmpeg.org/ffmpeg/trunk

11ce8834 03/22/2002 11:22 PM Michael Niedermayer

mpeg4 aspect_ratio_info in AVCodecContext (requested by alex)
experimental (& faster) motion estimation
squished a dirty uninitialized var bug
mpeg1 fcode>1 support

Originally committed as revision 349 to svn://svn.ffmpeg.org/ffmpeg/trunk

c5b1c10a 03/22/2002 04:51 PM Michael Niedermayer

fixing epzs & mpeg1 (hopefully now really ...)

Originally committed as revision 348 to svn://svn.ffmpeg.org/ffmpeg/trunk

8a29b310 03/22/2002 04:35 AM Michael Niedermayer

mpeg1 & epzs fix

Originally committed as revision 347 to svn://svn.ffmpeg.org/ffmpeg/trunk

c7d5049c 03/22/2002 02:36 AM Michael Niedermayer

oops

Originally committed as revision 345 to svn://svn.ffmpeg.org/ffmpeg/trunk

45870f57 03/22/2002 02:21 AM Michael Niedermayer

new motion estimation (epzs) not complete yet but allready pretty good :)
unlimited mv search range
minor bugfix in the mpeg4 header parser
reset picture in gop counter if scene change is detected

Originally committed as revision 344 to svn://svn.ffmpeg.org/ffmpeg/trunk

af469427 03/20/2002 11:16 AM Juanjo

- Fix pts calculation on mpeg mux (A/V sync) - Thanks to Lennert Buytenhek
- Fix temporal-reference-glitches for MPEG1 - Thanks to Lennert Buytenhek

Originally committed as revision 343 to svn://svn.ffmpeg.org/ffmpeg/trunk

ce7c56c2 03/19/2002 06:30 AM Juanjo

- Added video coding statistics for ffmpeg. Needs more work.
- Fixed ME range for H.263+ UMV (32 pix).

Originally committed as revision 342 to svn://svn.ffmpeg.org/ffmpeg/trunk

488fa19a 03/19/2002 03:51 AM Michael Niedermayer

use the width & height from the mpeg4 header ... in the case that its complete

Originally committed as revision 340 to svn://svn.ffmpeg.org/ffmpeg/trunk

019d276a 03/18/2002 09:06 PM Michael Niedermayer

msmpeg4 bugfix (wrong frame displayed if some frames are skipped)

Originally committed as revision 339 to svn://svn.ffmpeg.org/ffmpeg/trunk

2e3be0fb 03/18/2002 08:11 PM Michael Niedermayer

fixing 4MV

Originally committed as revision 338 to svn://svn.ffmpeg.org/ffmpeg/trunk

bd31a775 03/17/2002 07:45 PM Michael Niedermayer

scene change detection

Originally committed as revision 337 to svn://svn.ffmpeg.org/ffmpeg/trunk

c6741159 03/17/2002 06:08 PM Michael Niedermayer

10l

Originally committed as revision 336 to svn://svn.ffmpeg.org/ffmpeg/trunk

001e3f55 03/17/2002 05:44 PM Juanjo

- Fixes on MPEG demuxer to handle VOBs without System Header.

Originally committed as revision 335 to svn://svn.ffmpeg.org/ffmpeg/trunk

9cdd6a24 03/17/2002 04:31 PM Michael Niedermayer

hopefully better bitrate controll

Originally committed as revision 334 to svn://svn.ffmpeg.org/ffmpeg/trunk

1cb0edb4 03/16/2002 02:41 AM Juanjo

- Bug fix MPEG-2 decoder to handle "repeat_first_field" (Telecine)
- Hack in MPEG-2 demux to cope with buggy VOBs.

Originally committed as revision 333 to svn://svn.ffmpeg.org/ffmpeg/trunk

4278e7a6 03/15/2002 02:57 PM Michael Niedermayer

optimization

Originally committed as revision 332 to svn://svn.ffmpeg.org/ffmpeg/trunk

d6231b9e 03/15/2002 04:10 AM Michael Niedermayer

use ac prediction in mpeg4 encoding (5% smaller intra-blocks/keyframes)
some minor optimizations
last non zero index cant be 64 bugfix

Originally committed as revision 331 to svn://svn.ffmpeg.org/ffmpeg/trunk

49c9325f 03/13/2002 07:26 PM Michael Niedermayer

support decoding (with mplayer) of 3 .mp4 files from mphq
optimize h263_pred_motion()

Originally committed as revision 330 to svn://svn.ffmpeg.org/ffmpeg/trunk

10cd5815 03/13/2002 12:50 PM Michael Niedermayer

generate even more complete mpeg4 headers

Originally committed as revision 329 to svn://svn.ffmpeg.org/ffmpeg/trunk

6f91bcd1 03/12/2002 10:54 PM Michael Niedermayer

mpeg4 b-frames :)
create slightly more correct headers & add "ffmpeg" user-data section

Originally committed as revision 328 to svn://svn.ffmpeg.org/ffmpeg/trunk

e2263827 03/10/2002 03:16 PM Juanjo

- Bug fix on output sample rate for lame MP3 encoding.

Originally committed as revision 327 to svn://svn.ffmpeg.org/ffmpeg/trunk

9d36bdc9 03/10/2002 02:58 PM Juanjo

- Added MP3 encoding through libmp3lame contributed by Lennert Buytenhek.

Originally committed as revision 326 to svn://svn.ffmpeg.org/ffmpeg/trunk

0716b577 03/10/2002 02:52 PM Juanjo

- Added MP3 encoding through libmp3lame contributed by Lennert Buytenhek.

Originally committed as revision 325 to svn://svn.ffmpeg.org/ffmpeg/trunk

5798368b 03/10/2002 02:51 PM Juanjo

- Added MP3 encoding through libmp3lame contributed by Lennert Buytenhek.
- Changes on AVI and WAV muxers to support MP3.

Originally committed as revision 324 to svn://svn.ffmpeg.org/ffmpeg/trunk

1699d376 03/10/2002 03:17 AM Michael Niedermayer

divx5 draw_edges bugfix

Originally committed as revision 322 to svn://svn.ffmpeg.org/ffmpeg/trunk

7ff037e9 03/09/2002 02:22 PM Michael Niedermayer

q-pel mc fixed

Originally committed as revision 321 to svn://svn.ffmpeg.org/ffmpeg/trunk

44eb4951 03/09/2002 01:01 PM Michael Niedermayer

divx5-gmc support
q-pel mc support
neither is totally bugfree yet though :(

Originally committed as revision 320 to svn://svn.ffmpeg.org/ffmpeg/trunk

73c8e514 03/07/2002 01:27 PM Michael Niedermayer

gmc bitstream decoding support (the real motion compensation isnt implemnted yet)

Originally committed as revision 318 to svn://svn.ffmpeg.org/ffmpeg/trunk

cc9ba006 03/05/2002 01:58 PM Michael Niedermayer

parsing more of the mpeg4 header & print some "not supported" stuff

Originally committed as revision 317 to svn://svn.ffmpeg.org/ffmpeg/trunk

43f1708f 02/26/2002 10:14 PM Juanjo

- Added PSNR feature to libavcodec and ffmpeg. By now just Y PSNR until I'm
sure it works ok. Also it's slow, so use it only when you really need to
measure quality.
- Fix libavcodec Makefile to enable profiling.

Originally committed as revision 314 to svn://svn.ffmpeg.org/ffmpeg/trunk

2b9ab1d5 02/22/2002 07:19 PM Michael Niedermayer

fixing msmpeg4 decoding if fps < 16 (i thought it was a indicator for the ext header, its the fps indeed)

Originally committed as revision 313 to svn://svn.ffmpeg.org/ffmpeg/trunk

e7774f11 02/22/2002 03:35 AM Juanjo

- Bug fix on RTYPE (rounding type) not being honoured by H.263+ decoder.

Originally committed as revision 312 to svn://svn.ffmpeg.org/ffmpeg/trunk

9e15ad28 02/19/2002 07:23 PM Juanjo

- Bug fixes in H.263+ Advanced INTRA Coding decoder.
- H.263+ should be able to decode streams with AIC now :)

Originally committed as revision 311 to svn://svn.ffmpeg.org/ffmpeg/trunk

d140623f 02/18/2002 07:33 PM Juanjo

- H.263+ decoder support for Advanded INTRA Coding (buggy)

Originally committed as revision 310 to svn://svn.ffmpeg.org/ffmpeg/trunk

d6a4c0b1 02/18/2002 09:40 AM Zdenek Kabelac
  • some modifications to allow gcc to compile same code for -fPIC
    - introduced MOVQ_WONE, MOVQ_WTWO
  • unrolled put_pixels_clamped_mmx
  • added .baling where the jump address would be compiled on odd address
  • added some testing code to disable all these routines (for time measurement)...
38d171eb 02/18/2002 09:34 AM Zdenek Kabelac
  • simplified indexing
  • ignoring error from msmpeg4_decode_block

Originally committed as revision 307 to svn://svn.ffmpeg.org/ffmpeg/trunk