Commit Graph

482 Commits

Author SHA1 Message Date
Diego Biurrun
19e30a58fc Deprecate obsolete XvMC hardware decoding support
XvMC has long ago been superseded by newer acceleration APIs, such as
VDPAU, and few downstreams still support it. Furthermore XvMC is not
implemented within the hwaccel framework, but requires its own specific
code in the MPEG-1/2 decoder, which is a maintenance burden.
2013-11-13 21:07:45 +01:00
Diego Biurrun
38f64c0330 mpeg12decdata.h: Move all tables to the only place they are used 2013-08-15 14:38:03 +02:00
Rémi Denis-Courmont
578ea75a9e vdpau: remove old-style decoders
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2013-08-05 11:15:49 +02:00
Diego Biurrun
2832ea26f3 Remove commented-out debug #define cruft 2013-05-16 00:23:30 +02:00
Diego Biurrun
6fee1b90ce avcodec: Add av_cold attributes to init functions missing them 2013-05-04 21:09:45 +02:00
Diego Biurrun
1b6d66745a Split MPEG-1/2 decoder code off from MPEG-1/2 common code 2013-03-27 14:26:11 +01:00
Janne Grunau
757d85868b vdpau: fix obsolete mpeg1 vdpau decoder when mpeg2 is disabled 2013-03-26 22:53:29 +01:00
Martin Storsjö
f1e9398621 lavc: Rename avpriv_mpv_find_start_code after moving out from mpegvideo
Also move the declaration to internal.h, and add restrict qualifiers
to the declaration (as in the implementation).

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-03-26 09:50:02 +02:00
Anton Khirnov
ce0124acac mpeg12: do not fail on zero dimensions in the sequence header.
The total frame size is a combination of the 12 bits in the sequence
header and 2 more bits in the the sequence extension. While the
specification explicitly forbids the dimensions from the sequence header
from being 0 (thus ruling out multiples of 4096), such videos
apparrently exist in the wild so we should attempt to decode them.

Based on a patch by Michael Niedermayer <michaelni@gmx.at>

Fixes Bug 416.
2013-03-18 15:36:10 +01:00
Anton Khirnov
759001c534 lavc decoders: work with refcounted frames. 2013-03-08 07:38:30 +01:00
Diego Biurrun
5f401b7b71 Add missing error_resilience includes to files that use ER 2013-03-07 15:04:49 +01:00
Ronald S. Bultje
8d061989dd lavc: Split out ff_hwaccel_pixfmt_list_420[] over individual codecs
Not all hwaccels implement all codecs, so using one single list for
multiple such codecs means some codecs will be represented in the list,
even though they don't actually handle that codec. Copying specific
lists in each codec fixes that.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-03-06 21:18:50 +02:00
Anton Khirnov
1d0feb5d1a mpegvideo: split ff_draw_horiz_band().
Split out dependency on MpegEncContext.
2013-02-15 16:10:19 +01:00
Anton Khirnov
54974c6298 error_resilience: decouple ER from MpegEncContext 2013-02-15 16:10:11 +01:00
Diego Biurrun
88bd7fdc82 Drop DCTELEM typedef
It does not help as an abstraction and adds dsputil dependencies.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2013-01-22 18:32:56 -08:00
Anton Khirnov
5823686261 mpeg12: do not decode extradata more than once.
Fixes CVE-2012-2803.

CC: libav-stable@libav.org
2012-12-19 22:32:54 +01:00
Janne Grunau
f1d8763a02 mpegvideo: allocate scratch buffers after linesize is known
Since we can't know which stride a custom get_buffer() implementation is
going to use we have to allocate this scratch buffers after the linesize
is known. It was pretty safe for 8 bit per pixel pixel formats since we
always allocated memory for up to 16 bits per pixel. It broke hoever
with cmdutis.c's alloc_buffer() and high pixel bit depth since it
allocated larger edges than mpegvideo expected.

Fixes fuzzed sample nasa-8s2.ts_s244342.
2012-12-18 19:48:30 +01:00
Martin Storsjö
eaa9b2e66c avcodec: Rename avpriv_frame_rate_tab to ff_mpeg12_frame_rate_tab
This table doesn't need to be shared with libavformat any longer.
Add mpeg12 to the name to make it less ambiguous, while renaming it.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-10-18 14:26:14 +03:00
Anton Khirnov
716d413c13 Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat 2012-10-08 07:13:26 +02:00
Diego Biurrun
1218777ffd avcodec: Convert some commented-out printf/av_log instances to av_dlog 2012-10-01 10:24:28 +02:00
Anton Khirnov
0f583d20d5 mpeg12: fix the semantics of the int* parameter of decode()
It is got_output, not data_size.
2012-09-29 19:18:39 +02:00
Anton Khirnov
d9a2e87b1c mpeg12: move mpeg_decode_frame() lower
Avoids a forward declaration of decode_chunks().
2012-09-29 19:18:24 +02:00
Anton Khirnov
36ef5369ee Replace all CODEC_ID_* with AV_CODEC_ID_* 2012-08-07 16:00:24 +02:00
Hendrik Leppkes
1d4a01474d mpeg12: fixed parsing in some mpeg2 streams
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
2012-05-03 12:15:52 -04:00
Mans Rullgard
2bcbd98459 Remove lowres video decoding
This feature is complex, of questionable utility, and slows down
normal decoding.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-04-21 18:56:19 +01:00
Gwenole Beauchesne
9cb150c9ab hwaccel: mpeg2: decode first field, if requested.
If user opted to present fields as they come, then the first field
picture needs to be submitted to the HW for decoding. In particular,
this fixes MPEG-2 decoding of interlaced streams.

Tested on Intel Cedar Trail, Sandy Bridge and Ivy Bridge platforms.
Someone reported on the ffmpeg-devel@ list this also works on DXVA
(Windows) and other Linux platforms (NVIDIA, through the VA wrapper).

This also means a similar patch to non-hwaccel VDPAU may be necessary.

Note: I believe the SLICE_FLAG_ALLOW_FIELD is useless since the first
field shall always be submitted to the HW anyway. Nobody uses HW accels
(dxva, vaapi, vdpau, etc.) without that flag though.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-04-08 13:08:52 +03:00
Martin Storsjö
00c3b67b8a cosmetics: Align codec declarations
Also break some long lines, remove codec function placeholder comments
and add spaces in sample/pixel format lists.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-04-06 22:37:38 +03:00
Anne Aaron
fdf3a749d3 mpeg12: Do not change frame_pred_frame_dct flag and demote error into a warning
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-04-06 18:32:17 +03:00
Anton Khirnov
02beb9826b lavc: deprecate AVCodecContext.sub_id.
In most places where it's used, it's as a pointless write-only field.

Only rv10 decoder actually reads from it, but it stores some internal
version info in it. There is no reason for it to be in a public field.
2012-03-04 21:02:45 +01:00
Diego Biurrun
324deaa268 Replace AVFrame pointer type punning by proper struct member assignments. 2012-03-01 23:11:13 +01:00
Martin Storsjö
efd29844eb mpegvideo: Add ff_ prefix to nonstatic functions
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-02-15 22:07:23 +02:00
Martin Storsjö
e96b4a53df vlc/rl: Add ff_ prefix to the nonstatic symbols
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-02-15 22:06:26 +02:00
Alex Converse
7181c4edee cosmetics: Remove extra newlines at EOF 2012-01-27 17:19:09 -08:00
Jindřich Makovička
a85ce653fb mpeg12: check for available bits to avoid an infinite loop
Signed-off-by: Jindrich Makovicka <makovick@gmail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-01-19 14:14:21 +01:00
Diego Biurrun
3dc99a18d4 cosmetics: drop some pointless parentheses 2012-01-07 22:13:07 +01:00
Janne Grunau
881a5e047d mpegenc: use avctx->slices as number of slices
Adds a new member to MpegEncContext to hold the number of used slice
contexts. Fixes segfaults with '-threads 17 -thread_type slice' and
fate-vsynth{1,2}-mpeg{2,4}thread{,_ilace} with --disable-pthreads.
2012-01-02 19:20:23 +01:00
Luca Barbato
5bf2ac2b37 error_resilience: use the ER_ namespace
Add the namespace to {AC_,DC_,MV_}{END,ERROR} macros

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2011-12-13 16:20:58 +01:00
Diego Biurrun
58c42af722 doxygen: misc consistency, spelling and wording fixes 2011-12-12 23:06:23 +01:00
Anton Khirnov
15946eb8a9 lavc: remove "legacy" mpegvideo decoder. 2011-10-27 23:06:26 +02:00
Janne Grunau
d99fe3a478 mpeg12: fix mpeg_decode_slice context parameter type
During slice threading only MpegEncContext is passed to
mpeg_decode_slice, remove a wrong cast and change the function
definition to take MpegEncContext pointer.
2011-10-24 01:05:00 +02:00
Janne Grunau
cd8c64e197 Revert "mpeg12: move full_pel from MpegEncContext to Mpeg1Context"
This reverts commit da22ba7df4 since it
broke slice threading. Slice threading just duplicates MpegEncContext
so every value used during mpeg_decode_slice has to be in it.
A second patch will fix the illusion that Mpeg1Context is available
in mpeg_decode_slice.
2011-10-24 00:59:41 +02:00
Anton Khirnov
3fc0830432 mpeg12: move closed_gop from MpegEncContext to Mpeg1Context
It's MPEG-1/2 specific.
2011-10-23 14:15:56 +02:00
Anton Khirnov
da22ba7df4 mpeg12: move full_pel from MpegEncContext to Mpeg1Context
It's MPEG-1 specific.
2011-10-23 14:14:39 +02:00
Anton Khirnov
cc05a45d33 mpeg12: move Mpeg1Context from mpeg12.c to mpeg12.h
It will be used in vdpau code.
2011-10-23 14:14:34 +02:00
Dustin Brody
9abc98737f lavc: replace references to deprecated AVCodecContext.error_recognition to use AVCodecContext.err_recognition
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2011-10-22 14:49:55 +02:00
Anton Khirnov
9138a130cd lavc: use avpriv_ prefix for ff_frame_rate_tab.
It's used in lavf.
2011-10-20 21:06:58 +02:00
Anton Khirnov
773375c3d0 lavc: rename ff_find_start_code to avpriv_mpv_find_start_code
It's used in lavf.
2011-10-20 21:06:58 +02:00
Steven Walters
27237d524e w32threads: support for frame multithreading
Replace our incomplete w32threads implementation with x264's pthreads
w32threads wrapper.
Relicensed to LGPL with kind permission by Pegasys Inc.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
2011-10-16 21:45:16 +02:00
Mans Rullgard
aa498fef0d mpeg124: use sign_extend() function
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-10-09 23:22:14 +01:00
Anton Khirnov
e5b29c1f6b lavc: replace some deprecated FF_*_TYPE with AV_PICTURE_TYPE_* 2011-09-21 13:51:53 +02:00