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ffmpeg / tests @ 42cb3863

# Date Author Comment
42cb3863 07/08/2010 06:43 PM Måns Rullgård

regtest: put rgb and yuv reference files in correct place

SVN design flaw requires deleting dirs in separate step

Originally committed as revision 24117 to svn://svn.ffmpeg.org/ffmpeg/trunk

ce2e4ae3 07/07/2010 06:24 PM Stefano Sabatini

Add pixdesctest filter and corresponding test.

Originally committed as revision 24092 to svn://svn.ffmpeg.org/ffmpeg/trunk

c0146314 07/05/2010 10:32 PM Stefano Sabatini

Update lavfitest reference after commit:

Author: bcoudurier
Date: Sat Jul 3 03:11:04 2010 +0000
Set graph swscale opts before parsing it, that way opts are available
when auto-adding scalers.

It changed the swscale flags used by the auto-added scalers, and so...

29054fdd 07/02/2010 08:35 AM Baptiste Coudurier

In mxf muxer, fix last b frame temporal offset

Originally committed as revision 23967 to svn://svn.ffmpeg.org/ffmpeg/trunk

27d88069 06/24/2010 10:13 PM Måns Rullgård

fate: add vp8 tests

Originally committed as revision 23763 to svn://svn.ffmpeg.org/ffmpeg/trunk

c1b81d2f 06/16/2010 06:27 PM Stefano Sabatini

Remove the "b" from "Mb" in -b values for the dnxhd tests.

They are just ignored, and tend to confuse both machines and humans.

Originally committed as revision 23628 to svn://svn.ffmpeg.org/ffmpeg/trunk

2661d65a 06/15/2010 10:14 AM Måns Rullgård

FATE: update vc1 reference output

Originally committed as revision 23609 to svn://svn.ffmpeg.org/ffmpeg/trunk

e59cfd78 06/06/2010 06:50 PM Stefano Sabatini

Do not exclude anymore the pixel formats rgb444, bgr444, rgb4_byte,
and bgr4_byte from the lavfi-pix_fmts test.

The formats are now supported by NUT.

Originally committed as revision 23510 to svn://svn.ffmpeg.org/ffmpeg/trunk

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://svn.ffmpeg.org/ffmpeg/trunk

59b847d3 06/06/2010 12:05 AM Michael Niedermayer

Add simple rgb/yuv in avi regression test.

Originally committed as revision 23501 to svn://svn.ffmpeg.org/ffmpeg/trunk

e7ddafd5 06/04/2010 10:41 PM David Conrad

matroskaenc: Don't write a second seekhead for the clusters; mkvalidate agrees
with me that it's unnecessary.

Originally committed as revision 23478 to svn://svn.ffmpeg.org/ffmpeg/trunk

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
clusters.

Patch by James Zern <jzern at google>

Originally committed as revision 23473 to svn://svn.ffmpeg.org/ffmpeg/trunk

bb756b2f 06/03/2010 10:20 PM Stefano Sabatini

Fix typo.

Originally committed as revision 23459 to svn://svn.ffmpeg.org/ffmpeg/trunk

8456d947 06/03/2010 10:17 PM Stefano Sabatini

Exclude from the lavfi_pix_fmts regression test the output pixel
formats which are not currently supported by NUT and which cannot be
played by ffplay.

Originally committed as revision 23458 to svn://svn.ffmpeg.org/ffmpeg/trunk

d04c13f7 06/02/2010 06:56 PM Stefano Sabatini

Remove useless variables in get_common_elements().

Originally committed as revision 23429 to svn://svn.ffmpeg.org/ffmpeg/trunk

e34d5db5 05/24/2010 08:38 PM Stefano Sabatini

Add libavfilter 1-input - 1-output regression test, corresponding to the
target regtest-lavfi_pix_fmts.

The lavfi_pix_fmts test is disabled, this because there are
many tests which are failing, and there are still some output files
which cannot be played by NUT/ffplay....

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://svn.ffmpeg.org/ffmpeg/trunk

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://svn.ffmpeg.org/ffmpeg/trunk

e904c51f 05/13/2010 12:30 PM Vitor Sessak

Replace "-vfilters" by "-vf" in regtests. Should fix regtest breakage.

Originally committed as revision 23109 to svn://svn.ffmpeg.org/ffmpeg/trunk

458638e3 05/13/2010 11:32 AM Måns Rullgård

FATE: change -vfilters to -vf

Originally committed as revision 23108 to svn://svn.ffmpeg.org/ffmpeg/trunk

17be16a3 05/09/2010 05:05 PM Måns Rullgård

FATE: update idroq-video-encode command

Originally committed as revision 23064 to svn://svn.ffmpeg.org/ffmpeg/trunk

cccc039f 05/07/2010 11:52 AM Michael Niedermayer

Enable libavfilter by default and fix pading for mxf-d10

Originally committed as revision 23048 to svn://svn.ffmpeg.org/ffmpeg/trunk

55a95e2d 04/19/2010 11:51 AM Måns Rullgård

FATE: update nsv-demux checksums

Originally committed as revision 22908 to svn://svn.ffmpeg.org/ffmpeg/trunk

8b9ec992 04/13/2010 02:29 PM Måns Rullgård

FATE: update vqf-demux checksum

Originally committed as revision 22873 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Change default for bidir_refine to 1.

Originally committed as revision 22778 to svn://svn.ffmpeg.org/ffmpeg/trunk

ab379c67 03/25/2010 08:45 PM Baptiste Coudurier

10l, update ref value for ffm since default flags changed and are stored in the file

Originally committed as revision 22673 to svn://svn.ffmpeg.org/ffmpeg/trunk

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://svn.ffmpeg.org/ffmpeg/trunk

1400bd5a 03/17/2010 11:23 PM Stefano Sabatini

Make ad-hoc lavfi tests use random values for the slice height used
per each frame, useful for testing slicification.

Originally committed as revision 22587 to svn://svn.ffmpeg.org/ffmpeg/trunk

cec96e8d 03/17/2010 11:23 PM Stefano Sabatini

Add some ad-hoc tests for libavfilter.

A patched version of ffmpeg supporting video filters is required for
getting this working; thus make lavfitest is supposed to work only in
the libavfilter repository for now.

Originally committed as revision 22586 to svn://svn.ffmpeg.org/ffmpeg/trunk

2fad0977 03/15/2010 07:23 PM Måns Rullgård

Add FATE tests

This adds a "fate" make target which runs the full FATE test suite.
Individual tests can be run with "make fate-$testname".

The location of the FATE test samples must be specified with the
--samples=PATH option to configure.

The tests/fate-update.sh script regenerates the references files and...

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://svn.ffmpeg.org/ffmpeg/trunk

686c7817 03/14/2010 01:52 AM Michael Niedermayer

Make sure all mvs of a mb are set in the error concealment code.

Originally committed as revision 22520 to svn://svn.ffmpeg.org/ffmpeg/trunk

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://svn.ffmpeg.org/ffmpeg/trunk

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://svn.ffmpeg.org/ffmpeg/trunk

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://svn.ffmpeg.org/ffmpeg/trunk

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

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

Originally committed as revision 22352 to svn://svn.ffmpeg.org/ffmpeg/trunk

677a1144 03/08/2010 10:44 PM Baptiste Coudurier

Start continuity counter at 0 for pmt as well

Originally committed as revision 22350 to svn://svn.ffmpeg.org/ffmpeg/trunk

d73a458f 03/08/2010 08:59 PM Baptiste Coudurier

Start continuity counter at 0 for streams

Originally committed as revision 22344 to svn://svn.ffmpeg.org/ffmpeg/trunk

9169174f 03/08/2010 08:57 PM Baptiste Coudurier

10l typo, fix ts total bit rate computation

Originally committed as revision 22343 to svn://svn.ffmpeg.org/ffmpeg/trunk

21f7ab7a 03/08/2010 12:27 AM Måns Rullgård

Make ffserver regression test run (still fails)

Originally committed as revision 22305 to svn://svn.ffmpeg.org/ffmpeg/trunk

fc8cb398 03/08/2010 12:26 AM Måns Rullgård

regtest: move md5sum wrappers into separate file

ffserver-regression.sh doesn't need anything else from
regression-funcs.sh, and sourcing the entire file there
breaks things.

Originally committed as revision 22304 to svn://svn.ffmpeg.org/ffmpeg/trunk

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://svn.ffmpeg.org/ffmpeg/trunk

d1be9635 03/07/2010 07:26 PM Måns Rullgård

regtest: run seektest on lavftest output files

Somehow this got lost in the recent overhaul.

Originally committed as revision 22283 to svn://svn.ffmpeg.org/ffmpeg/trunk

d211b29e 03/07/2010 07:25 PM Måns Rullgård

regtest: place image sequence outputs in separate directories

Originally committed as revision 22282 to svn://svn.ffmpeg.org/ffmpeg/trunk

30f06a58 03/04/2010 08:53 AM David Conrad

Simplify starting and ending clusters

Originally committed as revision 22199 to svn://svn.ffmpeg.org/ffmpeg/trunk

1233698b 03/02/2010 09:59 PM Måns Rullgård

Make seektest messages similar to other tests

Originally committed as revision 22159 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Run seektest on all generated files

Originally committed as revision 22158 to svn://svn.ffmpeg.org/ffmpeg/trunk

1dd9ff87 03/02/2010 09:59 PM Måns Rullgård

Place regtest-pixfmt output files in separate dir

This test generates many output files, and keeping them separate
is convenient.

Originally committed as revision 22157 to svn://svn.ffmpeg.org/ffmpeg/trunk

801b571e 03/02/2010 09:42 PM Måns Rullgård

Remove unused argument to test scripts

Originally committed as revision 22156 to svn://svn.ffmpeg.org/ffmpeg/trunk

cc3e2472 03/02/2010 09:41 PM Måns Rullgård

Place regression test output files in subdirs per family

Originally committed as revision 22155 to svn://svn.ffmpeg.org/ffmpeg/trunk

cbc4670c 03/02/2010 05:50 PM Måns Rullgård

Revert "Remove the self reference in the seektest that prevented it from"

This reverts r22151. It prevents the seektest from running at all and
is thus of no use whatsoever.

Originally committed as revision 22152 to svn://svn.ffmpeg.org/ffmpeg/trunk

dd785e25 03/02/2010 05:29 PM Michael Niedermayer

Remove the self reference in the seektest that prevented it from
testing new formats since 2 years namely r11831.
This likely will uncover bugs that gone unnoticed in the last 2 years
due to lack of testing.

Originally committed as revision 22151 to svn://svn.ffmpeg.org/ffmpeg/trunk

af3390cb 03/02/2010 05:16 PM Michael Niedermayer

Make sure we dont double test files and sort the list.

Originally committed as revision 22150 to svn://svn.ffmpeg.org/ffmpeg/trunk

88b83cac 03/02/2010 04:57 PM Michael Niedermayer

Codec copy test.

Originally committed as revision 22148 to svn://svn.ffmpeg.org/ffmpeg/trunk

f2e033ac 02/28/2010 11:18 AM Reimar Döffinger

Free packets read in seek_test.

Originally committed as revision 22110 to svn://svn.ffmpeg.org/ffmpeg/trunk

c7ff04e2 02/28/2010 10:58 AM Reimar Döffinger

Fix some memory leaks in seek_test test program:
- do not allocate context twice
- close the input file before exiting

Originally committed as revision 22108 to svn://svn.ffmpeg.org/ffmpeg/trunk

8d819221 02/24/2010 10:56 AM Yann Coupin

Correctly increment continuity_counter in PCR packets.

Patch by Yann Coupin, yann.coupin+ffmpeg gmail

Originally committed as revision 22020 to svn://svn.ffmpeg.org/ffmpeg/trunk

43cfefaf 02/17/2010 09:37 PM Måns Rullgård

Use stripped executable in regression tests

Originally committed as revision 21870 to svn://svn.ffmpeg.org/ffmpeg/trunk

f575f08c 02/03/2010 03:09 PM Michael Niedermayer

Correct opts calulation in ffmpeg.c.
This correct the stop point for demuxing with -vcodec copy and -t as well as
packet interleaving. (we already diddrop packets but kept demuxing them
for too long due to opts being wrong)
the change to ffm is due to 2 packets with timestamp 0 being stored...

c45ebd54 02/02/2010 04:47 PM Michael Niedermayer

Set AVPacket.pos in MPEG-PS demuxer.

Originally committed as revision 21604 to svn://svn.ffmpeg.org/ffmpeg/trunk

f8ccf720 02/01/2010 10:08 PM Michael Niedermayer

Check pkt.pts against the recording time.
This fixes at least ogg encoding with -t where the file was slightly too long.

Originally committed as revision 21598 to svn://svn.ffmpeg.org/ffmpeg/trunk

c676895f 01/30/2010 09:47 PM Måns Rullgård

Separate audio-only tests so they are only run once

Originally committed as revision 21556 to svn://svn.ffmpeg.org/ffmpeg/trunk

ac1e18cb 01/21/2010 11:35 PM David Conrad

Update regression tests after r21372

Originally committed as revision 21374 to svn://svn.ffmpeg.org/ffmpeg/trunk

4b294c18 01/16/2010 08:18 PM Måns Rullgård

regtest: split wma test into wmav1 and wmav2

Originally committed as revision 21255 to svn://svn.ffmpeg.org/ffmpeg/trunk

eca478c3 01/16/2010 08:18 PM Måns Rullgård

regtest: split reference files allowing tests to run individually

With this change, the output is checked immediately after each test
has run. This means commands like "make regtest-mpeg2" can now be
used to run a single test and get meaningful results....

16cd99bb 01/16/2010 08:17 PM Måns Rullgård

regtest: suppress console output from tests

This disables all console output from the *-regression.sh scripts by
default. If the V environment variable is set to 1, ffmpeg commands
are printed before being run. If V is greater than 1, ffmpeg output
goes to the console, otherwise stderr is redirected to a file....

01d6bd52 01/13/2010 10:21 PM Baptiste Coudurier

Do not split audio frames accross pes packets.
This was not supported by some equipment and cisco analyzer.

Originally committed as revision 21203 to svn://svn.ffmpeg.org/ffmpeg/trunk

4df3bbbc 01/13/2010 08:44 PM Mike Scheutzow

Insert null packets to keep pcr values correct, patch by Mike Scheutzow,
scheutzow at alcatel-lucent dot com and Niobos, niobos at dest-unreach dot be.

Originally committed as revision 21199 to svn://svn.ffmpeg.org/ffmpeg/trunk

cd44b2e3 01/02/2010 12:29 PM Vitor Sessak

10l, my last commit (r21001) broke regression tests.

FATE tests might need updating too.

Originally committed as revision 21002 to svn://svn.ffmpeg.org/ffmpeg/trunk

66d23c96 12/26/2009 11:33 AM Diego Biurrun

Use common regression test functions in ffserver regression test script.
This makes the ffserver regression test more portable.

Originally committed as revision 20925 to svn://svn.ffmpeg.org/ffmpeg/trunk

3d147064 12/26/2009 11:24 AM Diego Biurrun

Replace ` ` syntax by $( ) in regression test shell scripts.
The latter syntax variant is more readable and easier to nest.

Originally committed as revision 20924 to svn://svn.ffmpeg.org/ffmpeg/trunk

2c2a167c 12/18/2009 06:03 AM Michael Niedermayer

It appears that waveformatextensible is mandatory for more cases than
just channels>2. The 16bit case is from MSDN, the 48khz is from less a reliable
www page (sorry i cant find the URL anymore).

Originally committed as revision 20892 to svn://svn.ffmpeg.org/ffmpeg/trunk

18eb23db 12/16/2009 02:55 PM Jai Menon

Update ffm reference checksums as a result of r20869.

Originally committed as revision 20882 to svn://svn.ffmpeg.org/ffmpeg/trunk

ae5e8caa 12/12/2009 05:34 PM Reimar Döffinger

Add ROQ format regression test.

Originally committed as revision 20811 to svn://svn.ffmpeg.org/ffmpeg/trunk

dae658d7 12/12/2009 01:52 PM Stefano Sabatini

Reduce the number of encoded frames for the dnxhd tests to 5.
Significantly reduce codectest execution time.

Originally committed as revision 20804 to svn://svn.ffmpeg.org/ffmpeg/trunk

384af837 12/07/2009 04:01 PM Jai Menon

Update seek.regression.ref. This is due to r20758.

Originally committed as revision 20759 to svn://svn.ffmpeg.org/ffmpeg/trunk

73e8c83d 12/01/2009 08:13 PM Baptiste Coudurier

update seek regression ref due to r20674, packet size changed

Originally committed as revision 20688 to svn://svn.ffmpeg.org/ffmpeg/trunk

8683f94f 11/26/2009 06:49 PM Jai Menon

Update libavformat regression reference checksum for ffm. This change is
due to r20601.

Originally committed as revision 20621 to svn://svn.ffmpeg.org/ffmpeg/trunk

fedbfd5d 11/24/2009 07:29 AM Baptiste Coudurier

update seek regression ref due to r20579, mp3 timestamps are adjusted

Originally committed as revision 20597 to svn://svn.ffmpeg.org/ffmpeg/trunk

b00803e0 11/09/2009 11:09 PM Justin Ruggles

fix a rounding error in the PSNR calculation and update the many regression
test references that this change affects.

Originally committed as revision 20492 to svn://svn.ffmpeg.org/ffmpeg/trunk

77f66963 10/27/2009 07:34 PM Stefano Sabatini

Split codec-regression.sh again and create a lavfi-regression.sh for
running the libavfilter tests.

Originally committed as revision 20384 to svn://svn.ffmpeg.org/ffmpeg/trunk

8f1e4d4f 10/24/2009 05:01 PM Stefano Sabatini

Split codec-regression.sh, and create the lavf-regression.sh script.

Originally committed as revision 20365 to svn://svn.ffmpeg.org/ffmpeg/trunk

2189dbc4 10/24/2009 12:39 PM Måns Rullgård

Fix codectest

Originally committed as revision 20360 to svn://svn.ffmpeg.org/ffmpeg/trunk

f94e56cf 10/23/2009 10:49 PM Stefano Sabatini

Split codec-regression.sh, put all the code which can be shared by
other regression test scripts in the regression-funcs.sh file.

Originally committed as revision 20359 to svn://svn.ffmpeg.org/ffmpeg/trunk

b74d42ee 10/22/2009 08:43 PM Daniel Verkamp

Build extradata in adpcm_ms encoder.

This fixes issue #1244.

Originally committed as revision 20349 to svn://svn.ffmpeg.org/ffmpeg/trunk

2bc70a76 10/20/2009 03:37 PM Reimar Döffinger

Print "NOPTS" when AV_NOPTS_VALUE is encountered during seek regression tests.
This makes the output nicely aligned even in for those cases, and might
also avoid some issues with printf implementations that can not handle well
very large float values (e.g. msvcrt without MinGW wrapper IIRC)....

3a408eff 10/19/2009 09:59 PM Stefano Sabatini

Move up the $test variable definition, together with the other
definitions of variables defined using the positional arguments of the
script.

Should ease the split of the file.

Originally committed as revision 20322 to svn://svn.ffmpeg.org/ffmpeg/trunk

dd65909a 10/19/2009 09:54 PM Stefano Sabatini

Give symbolic names to the positional parameters of the
codec-regression.sh script.

Originally committed as revision 20321 to svn://svn.ffmpeg.org/ffmpeg/trunk

933018e2 10/19/2009 12:40 PM Reimar Döffinger

Align the seek regression test output for better readability.

Originally committed as revision 20309 to svn://svn.ffmpeg.org/ffmpeg/trunk

a828d48c 10/18/2009 04:33 PM Reimar Döffinger

Replace seek test error return numbers by the corresponding E* strings.
Hopefully this fixes regression tests on DOS.
It breaks alignment of the output a bit more, but this should be easy to
fix with a second patch.

Originally committed as revision 20282 to svn://svn.ffmpeg.org/ffmpeg/trunk

a9b02043 10/11/2009 11:50 AM Reimar Döffinger

Do the dnxhd_720p_rd test with -threads 4 in order to also test the threading code.

Originally committed as revision 20205 to svn://svn.ffmpeg.org/ffmpeg/trunk

9797ce58 10/06/2009 10:47 PM Justin Ruggles

Add ALAC encoding and decoding regression tests.

Originally committed as revision 20188 to svn://svn.ffmpeg.org/ffmpeg/trunk

3fcb5113 10/02/2009 07:27 AM Reimar Döffinger

wav demuxer: return AVERROR_EOF instead of AVERROR when the end of
the file is reached normally, without any error.

Originally committed as revision 20143 to svn://svn.ffmpeg.org/ffmpeg/trunk

4bd7cb8b 10/02/2009 07:19 AM Reimar Döffinger

Fix seek regression test: several AVERROR correctly changed to AVERROR_EOF.

Originally committed as revision 20141 to svn://svn.ffmpeg.org/ffmpeg/trunk

593b50ce 10/02/2009 06:38 AM Reimar Döffinger

Make seek regression tests fit after previous get_buffer change.
The au and aiff demuxers would always return an empty packet before
detecting EOF, this is now fixed with av_get_packet etc. returning EOF.

Originally committed as revision 20136 to svn://svn.ffmpeg.org/ffmpeg/trunk

391dbb54 09/30/2009 03:13 PM Lasse Reinhold

Use floating point mathematics when encoding mpeg audio.
Fixes issue 975: high db peak levels when encoding mp2

Original patch by Lasse Reinhold, lassemikkelreinhold hotmail

Originally committed as revision 20100 to svn://svn.ffmpeg.org/ffmpeg/trunk

e935fa9e 09/29/2009 09:53 PM Stefano Sabatini

Prefer -vcodec rawvideo over -vcodec huffyuv for lavfi regression
tests, as the use of huffyuv may cause the auto-insertion of a scale
filter, thus masking the mis-behavior of some filter.

Originally committed as revision 20088 to svn://svn.ffmpeg.org/ffmpeg/trunk

0e829974 09/29/2009 07:49 PM Michael Kostylev

Fix md5 program invocation for BSD.
patch by Michael Kostylev, michael.kostylev gmail com

Originally committed as revision 20086 to svn://svn.ffmpeg.org/ffmpeg/trunk

ebb651d5 09/29/2009 07:17 PM Reimar Döffinger

Make sure that dv encoder initializes all encoded packet data.
The specification does not say which value to use for unused
parts, so fill all unused bytes with 0xff, which is consistent
with what DV usually uses for reserved or unused parts.

Originally committed as revision 20084 to svn://svn.ffmpeg.org/ffmpeg/trunk