The mpeg4 video, H264 and VC-1 parser hold (directly or indirectly)
a MpegEncContext in their private context. Since they do not call the
common mpegvideo init function slice_context_count has explicitly set
to 1.
Prevents a null pointer dereference in the h264 parser and fixes
bug 193.
Start code emulation prevention is only required in Annex B bytestream
packed NAL units. For other coding formats the size is already known.
Looking for a start code prefix can result in false positives like in
http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4
which has a false positive in the SPS.
Currently, the parser is buggy and only processes the stream extradata
when the flag is set. This fixes it to actually inspect the frames.
Whitespce will be fixed in a separate change.
Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
This allows freeing the parser memory in the thread_context freeing loop.
Patch by Rafaël Carré gmailify(rafael, carre)
Originally committed as revision 21508 to svn://svn.ffmpeg.org/ffmpeg/trunk
Fix:
==22063== Conditional jump or move depends on uninitialised value(s)
==22063== at 0x811A4B7: ff_find_start_code (mpegvideo.c:99)
==22063== by 0x82F5B74: parse_nal_units (h264_parser.c:132)
==22063== by 0x82F5A68: h264_parse (h264_parser.c:261)
[...]
==22063== Uninitialised value was created by a stack allocation
==22063== at 0x82F5AF5: parse_nal_units (h264_parser.c:112)
Originally committed as revision 18479 to svn://svn.ffmpeg.org/ffmpeg/trunk
This ensures that the parser will no longer leak memory for all SPS/PPS it encounters.
Originally committed as revision 18406 to svn://svn.ffmpeg.org/ffmpeg/trunk
Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.
Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavcodec/h264_parser.c(77): warning #589: transfer of control
bypasses initialization of:
variable "v" (declared at line 58)
goto found;
This new form also improves readability.
Patch by Diego 'Flameeyes' Pettenò %flameeyes A gmail P com%
Originally committed as revision 15526 to svn://svn.ffmpeg.org/ffmpeg/trunk
Janne Grunau
Anton Khirnov
Diego Biurrun
Philip Langdale
Stefano Sabatini
Mans Rullgard
Janne Grunau
Diego Elio Pettenò
Baptiste Coudurier
Howard Chu
Alex Converse
Rafaël Carré
Reimar Döffinger
John Cox
Carl Eugen Hoyos
Ivan Schreter
Aurelien Jacobs
NVIDIA Corporation
Michael Niedermayer