[Ffmpeg-devel] h264: fix bit_length calculation for dst_length == 0

[Reinhard Nissl]

Hi,

when dst_length == 0 it's obvious that bit_length has to be 0 too.

But the current code still calls decode_rbsp_trailing() and therefore
bit_length might get negative.

Although the remaining code is able to handle a negative bit_length, I
think it is better to avoid the calculation at all by setting bit_length
to 0 for dst_length == 0. The attached patch fixes this issue.

Bye.
-- 
Dipl.-Inform. (FH) Reinhard Nissl
mailto:rnissl at gmx.de
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