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h264_sei/decode_picture_timing: do not depend on h->sps being set

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-06 00:27:58 +02:00
parent ccdaa31d86
commit 26482ae716
1 changed files with 13 additions and 6 deletions
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19
libavcodec/h264_sei.c
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@ -45,11 +45,18 @@ void ff_h264_reset_sei(H264Context *h) {
}
static int decode_picture_timing(H264Context *h){
if(h->sps.nal_hrd_parameters_present_flag || h->sps.vcl_hrd_parameters_present_flag){
h->sei_cpb_removal_delay = get_bits_long(&h->gb, h->sps.cpb_removal_delay_length);
h->sei_dpb_output_delay = get_bits_long(&h->gb, h->sps.dpb_output_delay_length);
SPS *sps = &h->sps;
int i;
for (i = 0; i<MAX_SPS_COUNT; i++)
if (!sps->log2_max_frame_num && h->sps_buffers[i])
sps = h->sps_buffers[i];
if(sps->nal_hrd_parameters_present_flag || sps->vcl_hrd_parameters_present_flag){
h->sei_cpb_removal_delay = get_bits_long(&h->gb, sps->cpb_removal_delay_length);
h->sei_dpb_output_delay = get_bits_long(&h->gb, sps->dpb_output_delay_length);
}
if(h->sps.pic_struct_present_flag){
if(sps->pic_struct_present_flag){
unsigned int i, num_clock_ts;
h->sei_pic_struct = get_bits(&h->gb, 4);
h->sei_ct_type = 0;
@ -83,8 +90,8 @@ static int decode_picture_timing(H264Context *h){
}
}
}
if(h->sps.time_offset_length > 0)
skip_bits(&h->gb, h->sps.time_offset_length); /* time_offset */
if(sps->time_offset_length > 0)
skip_bits(&h->gb, sps->time_offset_length); /* time_offset */
}
}