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ffmpeg / tests / ref / seek @ c47d3835

# Date Author Comment
487fef2d 03/17/2011 07:51 PM Mans Rullgard

asf: update seek test reference

This updates the seek test reference to match de11ee9. Before this
change, most of the seeks requested positions before the supposed
start of the file (the preroll time), resulting in the first packet
being returned. With the preroll subtracted, some of these seeks...

323e6fea 03/14/2011 12:45 PM Justin

ac3enc: do not right-shift fixed-point coefficients in the final MDCT stage.

This increases the accuracy of coefficients, leading to improved quality.
Rescaling of the coefficients to full 25-bit accuracy is done rather than
offsetting the exponent values. This requires coefficient scaling to be done...

5b54d4b3 02/16/2011 11:39 PM Justin Ruggles

ac3enc: fix bug in stereo rematrixing decision.

The rematrixing strategy reuse flags are not reset between frames, so they
need to be initialized for all blocks, not just block 0.

Signed-off-by: Mans Rullgard <>

dc7e07ac 01/08/2011 11:21 PM Justin Ruggles

Add stereo rematrixing support to the AC-3 encoders.
This improves the audio quality significantly for stereo source with both the
fixed-point and floating-point AC-3 encoders.
Update acodec-ac3_fixed and seek-ac3_rm test references.

Originally committed as revision 26271 to svn://

ec44dd5f 12/29/2010 07:17 PM Justin Ruggles

Change the default dB-per-bit code from 2 to 3.
This gives slightly better quality in PEAQ tests.
Code 3 gives a dBpb value of 2816 = -132dB (128 psd units = -6dB), which
corresponds to 22 bits. Since the exponents have an offset applied, the
16-bit source looks like 24-bit source to the bit allocation routine....

295ab2af 12/21/2010 09:18 PM Justin Ruggles

Change FIX15 back to clipping to -32767..32767.
This avoids a 16-bit overflow in mdct512() due to a -32768 value in costab.
References updated for acodec-ac3, lavf-rm, and seek-ac3_rm tests.
Thanks to Måns Rullgård for finding the bug.

Originally committed as revision 26071 to svn://

8c634b70 12/14/2010 04:14 PM Justin Ruggles

Update the test references for lavf-rm and seek-ac3_rm.
The references changed due to r25956.

Originally committed as revision 26004 to svn://

475ae04a 12/07/2010 02:50 PM Michael Chinen

Add a FLAC parser.
Seek test reference updated because FLAC seeking now works properly.
Fixes roundup issue 1150.

Patch by Michael Chinen [mchinen at gmail]

Originally committed as revision 25914 to svn://

94bdb1f8 10/16/2010 09:31 PM Michael Niedermayer

Avoid negative SCR in mpeg ps muxer.
Fixes a scr issue reported with dvdauthor ([FFmpeg-user] FFMPEG encoded MPEG-2 video causes error in DVDAuthor)

Originally committed as revision 25512 to svn://

8c067b5d 09/26/2010 09:02 AM Måns Rullgård

Update rv20 seek test reference

Originally committed as revision 25204 to svn://

f729c4ae 07/20/2010 10:09 AM Måns Rullgård

regtest: rename seektest ref files using alphanumeric chars only

Originally committed as revision 24345 to svn://

48ede394 06/06/2010 04:50 PM Måns Rullgård

regtest: add seektest reference files for rgb/yuv in avi

Originally committed as revision 23506 to svn://

ac9baa71 06/04/2010 10:40 PM James Zern

matroskaenc: Mux clusters better

Start them on keyframes when reasonable, and delay writing audio packets
to help ensure that there's audio samples available for the first frame in

Patch by James Zern <jzern at google>

Originally committed as revision 23473 to svn://

7bb83d8d 05/24/2010 08:58 AM David Conrad

matroskaenc: Write codec time base as default duration for video tracks.

This isn't exactly semantically equivalent, but the field has already been
long abused to mean this, and writing it helps in determining a decent cfr
time base when transcoding from a mkv where the video codec stores none (VP8)....

85e86b68 05/22/2010 02:13 AM David Conrad

Update regression tests after removing track timecode scale from mkvenc

Originally committed as revision 23248 to svn://

95ca3b1e 05/21/2010 09:38 PM Baptiste Coudurier

In ogg muxer, pack multiple frames into one page, much lower overhead

Originally committed as revision 23231 to svn://

008593be 04/02/2010 02:08 PM Michael Niedermayer

Change default for bidir_refine to 1.

Originally committed as revision 22778 to svn://

66061a12 03/20/2010 01:36 PM James Darnley

Add VorbisComment writing to FLAC files.
Patch by James Darnley <james darnley at gmail>.

Originally committed as revision 22605 to svn://

bd57cae8 03/15/2010 04:37 PM Michael Niedermayer

use mpeg2 quantization bias for mjpeg.
this seems to improve RD performance.

Originally committed as revision 22550 to svn://

873d117e 03/11/2010 07:17 AM David Conrad

oggdec: Determine pts and filepos on a packet basis in read_timestamp

This takes into account whether the granule defines the start or end times
of packets, and sets the correct file offset of the associated page.

Originally committed as revision 22462 to svn://

50a9d323 03/11/2010 07:17 AM David Conrad

oggdec: Set data_offset to the right value

Otherwise it gets set automatically to a page midstream and prevents seeking
to the first page.

Originally committed as revision 22454 to svn://

73823cb9 03/11/2010 07:17 AM David Conrad

oggdec: Save offset of the page needed to reconstruct the current packet

Originally committed as revision 22453 to svn://

7082ea56 03/08/2010 11:46 PM Baptiste Coudurier

mpegts vbr muxing, activated when muxing rate is not supplied by the

Originally committed as revision 22352 to svn://

ecefc5dd 03/07/2010 07:50 PM Måns Rullgård

regtest: run seektest on image sequences

Seeking on image sequences doesn't actually work, so this
test isn't very useful until that capability is added.

Originally committed as revision 22286 to svn://

d7096d6f 03/02/2010 09:59 PM Måns Rullgård

Run seektest on all generated files

Originally committed as revision 22158 to svn://