DVR-MS probe audio format
patch by John Donaghy \ johnfdonaghy chez gmail dot com /
Original thread:
date: 03/13/2007 04:56 PM
subject: [Ffmpeg-devel] [PATCH] DVR-MS probe audio format - was DVR-MS bug (MP2 decoding)



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add a check before find_frame_end call
Patch by Limin Wang % lance P lmwang A gmail P com %
Original thread:
date: 04/09/2007 03:54 PM
subject: [Ffmpeg-devel] [PATCH] fix segment fault in h264_parse if buf_size is zero



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handled)


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anymore in rtspcodes.h)


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The image data is rescaled to the nearest pix_fmt it will fit in (gray8 or
gray16). Conversion is done inside the codec in order to avoid the need
for 14 (or 65534) new pix_fmt's.



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certain THP files.
patch by Marco Gerards, mgerards xs4all nl


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so that it can be used by other part of the code


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calls decode_rbsp_trailing() and therefore bit_length might get negative.
Although the remaining code is able to handle a negative bit_length, avoid
the calculation at all by setting bit_length to 0 for dst_length == 0.
patch by Reinhard Nissl, rnissl gmx de


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Consider the following byte sequence

    00 00 01 0a 00 00 00 01 09 ...
               ^  ^
               A  B

decode_nal() determines dst_length to be 1 (i. e. the byte between label
A and B above). However, this byte is a trailing zero byte as the spec
says the the current NAL unit is terminated by a byte sequence 00 00 00.

The current code used a loop to decrement dst_length accordingly. But the
loop doesn't start as the loop condition checks for dst_length > 1, which
should read dst_length > 0.
patch by Reinhard Nissl, rnissl gmx de


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i.e. the four bytes 00 00 01 0a.
When decode_nal() decodes the end of sequence NAL unit, it returns with
dst_length == 0. The original code leads to a return -1 which discards
the current properly decoded frame.
patch by Reinhard Nissl, rnissl gmx de


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patch by Nicholas Tung, ntung ntung com


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and have no prototype in a header file static.
patch by Stefan Huehner, stefan huehner org


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enabled.  Also fixes some "defined but not used" warnings in that case.


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patch by Marco Gerards, mgerards xs4all nl


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