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599 Commits

Author SHA1 Message Date
Michael Niedermayer
5231eecdaf Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  Deprecate obsolete XvMC hardware decoding support

Conflicts:
	libavcodec/mpeg12.c
	libavcodec/mpeg12dec.c
	libavcodec/mpegvideo.c
	libavcodec/options_table.h
	libavutil/pixdesc.c
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-14 03:26:35 +01:00
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XvMC has long ago been superseded by newer acceleration APIs, such as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
Michael Niedermayer
a0c6c8e53e Revert "Merge commit of 'vdpau: remove old-style decoders'" 
This reverts commit bf36dc50ea, reversing
changes made to b7fc2693c7.

Conflicts:

	libavcodec/h264.c

Keeping support for the old VDPAU API has been requested by our VDPAU maintainer

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-08-17 22:17:49 +02:00
Michael Niedermayer
dbcee7cc5c Merge commit '38f64c03301ac66d7b54b3e4bd2bf6454f9fb2d3' 
* commit '38f64c03301ac66d7b54b3e4bd2bf6454f9fb2d3':
  mpeg12decdata.h: Move all tables to the only place they are used

Conflicts:
	libavcodec/mpeg12decdata.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-08-16 13:13:58 +02:00
Diego Biurrun
38f64c0330 mpeg12decdata.h: Move all tables to the only place they are used 2013-08-15 14:38:03 +02:00
Michael Niedermayer
bf36dc50ea Merge commit '578ea75a9e4ac56e0bbbbe668700be756aa699f8' 
* commit '578ea75a9e4ac56e0bbbbe668700be756aa699f8':
  vdpau: remove old-style decoders

Conflicts:
	libavcodec/allcodecs.c
	libavcodec/h263dec.c
	libavcodec/h264.c
	libavcodec/mpeg12dec.c
	libavcodec/mpeg4videodec.c
	libavcodec/vc1dec.c
	libavcodec/vdpau.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-08-06 13:24:22 +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
Michael Niedermayer
efc08e00cc Merge commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110' 
* commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110':
  vf_aspect: use the name 's' for the pointer to the private context
  Remove commented-out debug #define cruft

Conflicts:
	libavcodec/4xm.c
	libavcodec/dvdsubdec.c
	libavcodec/ituh263dec.c
	libavcodec/mpeg12.c
	libavfilter/avfilter.c
	libavfilter/vf_aspect.c
	libavfilter/vf_fieldorder.c
	libavformat/rtmpproto.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-16 09:56:43 +02:00
Diego Biurrun
2832ea26f3 Remove commented-out debug #define cruft 2013-05-16 00:23:30 +02:00
Michael Niedermayer
0aa095483d Merge commit '6fee1b90ce3bf4fbdfde7016e0890057c9000487' 
* commit '6fee1b90ce3bf4fbdfde7016e0890057c9000487':
  avcodec: Add av_cold attributes to init functions missing them

Conflicts:
	libavcodec/aacpsy.c
	libavcodec/atrac3.c
	libavcodec/dvdsubdec.c
	libavcodec/ffv1.c
	libavcodec/ffv1enc.c
	libavcodec/h261enc.c
	libavcodec/h264_parser.c
	libavcodec/h264dsp.c
	libavcodec/h264pred.c
	libavcodec/libschroedingerenc.c
	libavcodec/libxvid_rc.c
	libavcodec/mpeg12.c
	libavcodec/mpeg12enc.c
	libavcodec/proresdsp.c
	libavcodec/rangecoder.c
	libavcodec/videodsp.c
	libavcodec/x86/proresdsp_init.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-05 11:34:29 +02:00
Diego Biurrun
6fee1b90ce avcodec: Add av_cold attributes to init functions missing them 2013-05-04 21:09:45 +02:00
Michael Niedermayer
016c00cf68 Merge commit '1b6d66745ac1768adb387c2227cdcf4452271149' 
* commit '1b6d66745ac1768adb387c2227cdcf4452271149':
  Split MPEG-1/2 decoder code off from MPEG-1/2 common code

Conflicts:
	libavcodec/Makefile
	libavcodec/mpeg12.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-28 11:45:50 +01:00
Michael Niedermayer
b1064dd783 Merge commit '1db6a080bddd14fed6b29140ecd2e21e42b1c022' 
* commit '1db6a080bddd14fed6b29140ecd2e21e42b1c022':
  dca: Move ff_dca_convert_bitstream() to the DCA common code
  vdpau: wrap codec specific functions in appropiate #ifs

Conflicts:
	libavcodec/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-28 11:18:23 +01:00
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
Michael Niedermayer
b19604cc4b Merge commit 'f1e9398621af0bc9d166014e4ce6996bb4f141d0' 
* commit 'f1e9398621af0bc9d166014e4ce6996bb4f141d0':
  lavc: Rename avpriv_mpv_find_start_code after moving out from mpegvideo

Conflicts:
	libavcodec/h264_parser.c
	libavcodec/internal.h
	libavcodec/mpeg12.c
	libavcodec/utils.c
	libavformat/mpegtsenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-26 13:44:09 +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
Michael Niedermayer
0163ad66e1 mpeg2: 12LSB w/h of 0 is not allowed in compliant videos thus this also needs AV_EF_COMPLIANT 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-18 17:48:52 +01:00
Michael Niedermayer
330e440706 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  print_options: do not generate docs for options without enc or dec flags
  mpeg12: do not fail on zero dimensions in the sequence header.

Conflicts:
	libavcodec/mpeg12.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-18 17:43:43 +01:00
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
Reimar Döffinger
23426987fa mpeg12: reduce hwaccel-related code duplication. 
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2013-03-16 13:40:36 +01:00
Michael Niedermayer
64308941d4 mpegvideo: Fix exported qp table offest 
Found-by: wm4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-15 14:38:09 +01:00
Michael Niedermayer
fa80967a73 mpeg1/2: export qp table 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-15 03:02:27 +01:00
Michael Niedermayer
53fd4f5594 avcodec: fix motion vector vissualization 
was broken by the buffer ref stuff

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-12 11:23:07 +01:00
Michael Niedermayer
80e9e63c94 Merge commit '759001c534287a96dc96d1e274665feb7059145d' 
* commit '759001c534287a96dc96d1e274665feb7059145d':
  lavc decoders: work with refcounted frames.

Anton Khirnov (1):
      lavc decoders: work with refcounted frames.

Clément Bœsch (47):
      lavc/ansi: reset file
      lavc/ansi: re-do refcounted frame changes from Anton
      fraps: reset file
      lavc/fraps: switch to refcounted frames
      gifdec: reset file
      lavc/gifdec: switch to refcounted frames
      dsicinav: resolve conflicts
      smc: resolve conflicts
      zmbv: resolve conflicts
      rpza: resolve conflicts
      vble: resolve conflicts
      xxan: resolve conflicts
      targa: resolve conflicts
      vmnc: resolve conflicts
      utvideodec: resolve conflicts
      tscc: resolve conflicts
      ulti: resolve conflicts
      ffv1dec: resolve conflicts
      dnxhddec: resolve conflicts
      v210dec: resolve conflicts
      vp3: resolve conflicts
      vcr1: resolve conflicts
      v210x: resolve conflicts
      wavpack: resolve conflicts
      pngdec: fix compilation
      roqvideodec: resolve conflicts
      pictordec: resolve conflicts
      mdec: resolve conflicts
      tiertexseqv: resolve conflicts
      smacker: resolve conflicts
      vb: resolve conflicts
      vqavideo: resolve conflicts
      xl: resolve conflicts
      tmv: resolve conflicts
      vmdav: resolve conflicts
      truemotion1: resolve conflicts
      truemotion2: resolve conflicts
      lcldec: fix compilation
      libcelt_dec: fix compilation
      qdrw: fix compilation
      r210dec: fix compilation
      rl2: fix compilation
      wnv1: fix compilation
      yop: fix compilation
      tiff: resolve conflicts
      interplayvideo: fix compilation
      qpeg: resolve conflicts (FIXME/TESTME).

Hendrik Leppkes (33):
      012v: convert to refcounted frames
      8bps: fix compilation
      8svx: resolve conflicts
      4xm: resolve conflicts
      aasc: resolve conflicts
      bfi: fix compilation
      aura: fix compilation
      alsdec: resolve conflicts
      avrndec: convert to refcounted frames
      avuidec: convert to refcounted frames
      bintext: convert to refcounted frames
      cavsdec: resolve conflicts
      brender_pix: convert to refcounted frames
      cinepak: resolve conflicts
      cinepak: avoid using AVFrame struct directly in private context
      cljr: fix compilation
      cpia: convert to refcounted frames
      cscd: resolve conflicts
      iff: resolve conflicts and do proper conversion to refcounted frames
      4xm: fix reference frame handling
      cyuv: fix compilation
      dxa: fix compilation
      eacmv: fix compilation
      eamad: fix compilation
      eatgv: fix compilation
      escape124: remove unused variable.
      escape130: convert to refcounted frames
      evrcdec: convert to refcounted frames
      exr: convert to refcounted frames
      mvcdec: convert to refcounted frames
      paf: properly free the frame data on decode close
      sgirle: convert to refcounted frames
      lavfi/moviesrc: use refcounted frames

Michael Niedermayer (56):
      Merge commit '759001c534287a96dc96d1e274665feb7059145d'
      resolve conflicts in headers
      motion_est: resolve conflict
      mpeg4videodec: fix conflicts
      dpcm conflict fix
      dpx: fix conflicts
      indeo3: resolve confilcts
      kmvc: resolve conflicts
      kmvc: resolve conflicts
      h264: resolve conflicts
      utils: resolve conflicts
      rawdec: resolve conflcits
      mpegvideo: resolve conflicts
      svq1enc: resolve conflicts
      mpegvideo: dont clear data, fix assertion failure on fate vsynth1 with threads
      pthreads: resolve conflicts
      frame_thread_encoder: simple compilefix not yet tested
      snow: update to buffer refs
      crytsalhd: fix compile
      dirac: switch to new API
      sonic: update to new API
      svq1: resolve conflict, update to new API
      ffwavesynth: update to new buffer API
      g729: update to new API
      indeo5: fix compile
      j2kdec: update to new buffer API
      linopencore-amr: fix compile
      libvorbisdec: update to new API
      loco: fix compile
      paf: update to new API
      proresdec: update to new API
      vp56: update to new api / resolve conflicts
      xface: convert to refcounted frames
      xan: fix compile&fate
      v408: update to ref counted buffers
      v308: update to ref counted buffers
      yuv4dec: update to ref counted buffers
      y41p: update to ref counted frames
      xbm: update to refcounted frames
      targa_y216: update to refcounted buffers
      qpeg: fix fate/crash
      cdxl: fix fate
      tscc: fix reget buffer useage
      targa_y216dec: fix style
      msmpeg4: fix fate
      h264: ref_picture() copy fields that have been lost too
      update_frame_pool: use channel field
      h264: Put code that prevents deadlocks back
      mpegvideo: dont allow last == current
      wmalossless: fix buffer ref messup
      ff_alloc_picture: free tables in case of dimension mismatches
      h264: fix null pointer dereference and assertion failure
      frame_thread_encoder: update to bufrefs
      ec: fix used arrays
      snowdec: fix off by 1 error in dimensions check
      h264: disallow single unpaired fields as references of frames

Paul B Mahol (2):
      lavc/vima: convert to refcounted frames
      sanm: convert to refcounted frames

Conflicts:
	libavcodec/4xm.c
	libavcodec/8bps.c
	libavcodec/8svx.c
	libavcodec/aasc.c
	libavcodec/alsdec.c
	libavcodec/anm.c
	libavcodec/ansi.c
	libavcodec/avs.c
	libavcodec/bethsoftvideo.c
	libavcodec/bfi.c
	libavcodec/c93.c
	libavcodec/cavsdec.c
	libavcodec/cdgraphics.c
	libavcodec/cinepak.c
	libavcodec/cljr.c
	libavcodec/cscd.c
	libavcodec/dnxhddec.c
	libavcodec/dpcm.c
	libavcodec/dpx.c
	libavcodec/dsicinav.c
	libavcodec/dvdec.c
	libavcodec/dxa.c
	libavcodec/eacmv.c
	libavcodec/eamad.c
	libavcodec/eatgq.c
	libavcodec/eatgv.c
	libavcodec/eatqi.c
	libavcodec/error_resilience.c
	libavcodec/escape124.c
	libavcodec/ffv1.h
	libavcodec/ffv1dec.c
	libavcodec/flicvideo.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/g723_1.c
	libavcodec/gifdec.c
	libavcodec/h264.c
	libavcodec/h264.h
	libavcodec/h264_direct.c
	libavcodec/h264_loopfilter.c
	libavcodec/h264_refs.c
	libavcodec/huffyuvdec.c
	libavcodec/idcinvideo.c
	libavcodec/iff.c
	libavcodec/indeo2.c
	libavcodec/indeo3.c
	libavcodec/internal.h
	libavcodec/interplayvideo.c
	libavcodec/ivi_common.c
	libavcodec/jvdec.c
	libavcodec/kgv1dec.c
	libavcodec/kmvc.c
	libavcodec/lagarith.c
	libavcodec/libopenjpegdec.c
	libavcodec/mdec.c
	libavcodec/mimic.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mmvideo.c
	libavcodec/motion_est.c
	libavcodec/motionpixels.c
	libavcodec/mpc7.c
	libavcodec/mpeg12.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h
	libavcodec/msrle.c
	libavcodec/msvideo1.c
	libavcodec/nuv.c
	libavcodec/options_table.h
	libavcodec/pcx.c
	libavcodec/pictordec.c
	libavcodec/pngdec.c
	libavcodec/pnmdec.c
	libavcodec/pthread.c
	libavcodec/qpeg.c
	libavcodec/qtrle.c
	libavcodec/r210dec.c
	libavcodec/rawdec.c
	libavcodec/roqvideodec.c
	libavcodec/rpza.c
	libavcodec/smacker.c
	libavcodec/smc.c
	libavcodec/svq1dec.c
	libavcodec/svq1enc.c
	libavcodec/targa.c
	libavcodec/tiertexseqv.c
	libavcodec/tiff.c
	libavcodec/tmv.c
	libavcodec/truemotion1.c
	libavcodec/truemotion2.c
	libavcodec/tscc.c
	libavcodec/ulti.c
	libavcodec/utils.c
	libavcodec/utvideodec.c
	libavcodec/v210dec.c
	libavcodec/v210x.c
	libavcodec/vb.c
	libavcodec/vble.c
	libavcodec/vcr1.c
	libavcodec/vmdav.c
	libavcodec/vmnc.c
	libavcodec/vp3.c
	libavcodec/vp56.c
	libavcodec/vp56.h
	libavcodec/vp6.c
	libavcodec/vqavideo.c
	libavcodec/wavpack.c
	libavcodec/xl.c
	libavcodec/xxan.c
	libavcodec/zmbv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-12 03:23:28 +01:00
Michael Niedermayer
c32cc7e3a4 Merge commit 'bcd0a7137e4aca0f6f598593b90ca8f338444c51' 
* commit 'bcd0a7137e4aca0f6f598593b90ca8f338444c51':
  configure: Add missing h264chroma dependencies to vp5, vp6
  Add missing error_resilience includes to files that use ER

Conflicts:
	configure
	libavcodec/mpeg12.c
	libavcodec/mpeg4videodec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-08 15:23:56 +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
Joseph Artsimovich
4a6bd34637 Handle an invalid extra mpeg2 picture header following a frame-encoded picture. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-03-01 16:04:31 +01:00
Michael Niedermayer
997a36238f mpeg12: Detect MXF essence stuff at the end of frames 
Fixes some of the issues with segment.mov

See: 0226 15:16 Joseph Artsimov (2.1K) [FFmpeg-devel] Two problems with MPEG2 decoder
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-02-26 18:56:32 +01:00
Reimar Döffinger
c65eb7907c mpeg12: Fix non-hwaccel VDPAU decode. 
Previously avctx->hwaccel would have been set to a dummy value,
now an explicit check is necessary instead.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2013-02-24 19:49:06 +01:00
Michael Niedermayer
ddbbfd95be Merge commit '1d0feb5d1ac04d187b335f0e8d411c9f40b3a885' 
* commit '1d0feb5d1ac04d187b335f0e8d411c9f40b3a885':
  mpegvideo: split ff_draw_horiz_band().

Conflicts:
	libavcodec/vc1dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-02-16 19:00:39 +01:00
Michael Niedermayer
1fad547cef Merge commit '54974c62982ae827becdbdb9b620b7ba75d079a0' 
* commit '54974c62982ae827becdbdb9b620b7ba75d079a0':
  error_resilience: decouple ER from MpegEncContext

Conflicts:
	libavcodec/error_resilience.c
	libavcodec/h263dec.c
	libavcodec/h264.c
	libavcodec/mpegvideo.c
	libavcodec/vc1dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-02-16 18:54:56 +01:00
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
Michael Niedermayer
ac8987591f Merge commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f' 
* commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f':
  Drop DCTELEM typedef

Conflicts:
	libavcodec/alpha/dsputil_alpha.h
	libavcodec/alpha/motion_est_alpha.c
	libavcodec/arm/dsputil_init_armv6.c
	libavcodec/bfin/dsputil_bfin.h
	libavcodec/bfin/pixels_bfin.S
	libavcodec/cavs.c
	libavcodec/cavsdec.c
	libavcodec/dct-test.c
	libavcodec/dnxhdenc.c
	libavcodec/dsputil.c
	libavcodec/dsputil.h
	libavcodec/dsputil_template.c
	libavcodec/eamad.c
	libavcodec/h264_cavlc.c
	libavcodec/h264idct_template.c
	libavcodec/mpeg12.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h
	libavcodec/mpegvideo_enc.c
	libavcodec/ppc/dsputil_altivec.c
	libavcodec/proresdsp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-23 17:44:56 +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
Michael Niedermayer
878e5bd6f5 mpeg12: Support decoding dimensions that are a multiple of 4096 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-01-07 15:31:00 +01:00
Michael Niedermayer
6e8df250fd mpeg12: fix frame_pred_frame_dct handling in field pictures 
Fixes Ticket254

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-31 20:55:03 +01:00
Michael Niedermayer
49ec0d8ed2 mpeg12: print invalid cbp value 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-31 20:55:02 +01:00
Michael Niedermayer
343900a147 mpeg12: print error for invalid skip cases 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-31 20:55:02 +01:00
Michael Niedermayer
41135b7f64 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  lavr: add option for dithering during sample format conversion to s16
  mpeg12: do not decode extradata more than once.

Conflicts:
	libavcodec/mpeg12.c
	libavcodec/mpeg12.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-20 12:18:28 +01:00
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
Michael Niedermayer
642a655f7d Merge commit 'f1d8763a02b5fce9a7d9789e049d74a45b15e1e8' 
* commit 'f1d8763a02b5fce9a7d9789e049d74a45b15e1e8':
  mpegvideo: allocate scratch buffers after linesize is known

Conflicts:
	libavcodec/mpegvideo.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-19 15:44:59 +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
Michael Niedermayer
0af7ccd9e2 mpeg12: move current_picture_ptr reset to the end of decode_frame. 
This fixes passing fields instead of frames into the decoder.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-09 19:49:51 +01:00
Michael Niedermayer
801a2a1df0 mpeg12: fix av_log level and context 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-11-23 01:18:53 +01:00
Michael Niedermayer
8824a9ed22 mpeg12: clean current picture ptr. 
This avoids having a stray pointer left that may not represent the current picture
and state.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-11-12 01:43:11 +01:00
Heesuk Jung
25b7aa980b Fix bit_rate in MPEG1/2 Video 
In ISO/IEC 13818-2, bit rate is differently determined according to video type

1) MPEG1 Video
 Bit_rate and vbv_delay are set to 3FFFF and FFFF respectively
 to indicate variable bitrate. Other values are for constant bitrate.
 VBV is only defined for constant bit rate operation.
 Ths STD supersedes the VBV model for vbr.

2) MPEG2 Video
 Even if the bitrate is constant, the value of bit_rate may not be the actual bitrate
 since bit_rate need only be an upper bound to that actual bitrate.
 VBV is only defined for variable bit rate operation.
 Constant bit rate is viewed as a special case of vbr.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-11-02 22:27:17 +01:00