openharmony/third_party_ffmpeg
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more checks and error messages

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Originally committed as revision 7069 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-11-14 20:35:15 +00:00
parent 576a85f7c9
commit bd60e11bf4
1 changed files with 8 additions and 1 deletions
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9
libavcodec/mpegaudiodec.c
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@ -2166,6 +2166,11 @@ static int mp_decode_layer3(MPADecodeContext *s)
g = &granules[ch][gr];
g->part2_3_length = get_bits(&s->gb, 12);
g->big_values = get_bits(&s->gb, 9);
if(g->big_values > 288){
av_log(NULL, AV_LOG_ERROR, "big_values too big\n");
return -1;
}
g->global_gain = get_bits(&s->gb, 8);
/* if MS stereo only is selected, we precompute the
1/sqrt(2) renormalization factor */
@ -2179,8 +2184,10 @@ static int mp_decode_layer3(MPADecodeContext *s)
blocksplit_flag = get_bits(&s->gb, 1);
if (blocksplit_flag) {
g->block_type = get_bits(&s->gb, 2);
if (g->block_type == 0)
if (g->block_type == 0){
av_log(NULL, AV_LOG_ERROR, "invalid block type\n");
return -1;
}
g->switch_point = get_bits(&s->gb, 1);
for(i=0;i<2;i++)
g->table_select[i] = get_bits(&s->gb, 5);