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Code Issues Releases Activity

do not read over the end of the packet

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fixes issue 2543

Originally committed as revision 26367 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Sascha Sommer 2011-01-15 16:39:52 +00:00
parent 462b26202b
commit f734671925
1 changed files with 6 additions and 0 deletions
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6
libavcodec/wmaprodec.c
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@ -1506,6 +1506,12 @@ static int decode_packet(AVCodecContext *avctx,
s->packet_sequence_number = packet_sequence_number;
if (num_bits_prev_frame > 0) {
int remaining_packet_bits = s->buf_bit_size - get_bits_count(gb);
if (num_bits_prev_frame >= remaining_packet_bits) {
num_bits_prev_frame = remaining_packet_bits;
s->packet_done = 1;
}
/** append the previous frame data to the remaining data from the
previous packet to create a full frame */
save_bits(s, gb, num_bits_prev_frame, 1);