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h264parse: SPS: decode hrd params

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Lin YANG 2009-08-17 17:50:02 +08:00 committed by Sebastian Dröge
parent e55fb077e6
commit 2d50657635
1 changed files with 31 additions and 0 deletions
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31
gst/h264parse/gsth264parse.c
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@ -326,6 +326,37 @@ gst_h264_parse_get_pps (GstH264Parse * h, guint8 pps_id)
return pps;
}
/* decode hrd parameters */
static gboolean
gst_vui_decode_hrd_parameters (GstH264Parse * h, GstNalBs * bs)
{
GstH264Sps *sps = h->sps;
gint sched_sel_idx;
sps->cpb_cnt_minus1 = gst_nal_bs_read_ue (bs);
if (sps->cpb_cnt_minus1 > 31U) {
GST_ERROR_OBJECT (h, "cpb_cnt_minus1 = %d out of range",
sps->cpb_cnt_minus1);
return FALSE;
}
gst_nal_bs_read (bs, 4); /* bit_rate_scale */
gst_nal_bs_read (bs, 4); /* cpb_size_scale */
for (sched_sel_idx = 0; sched_sel_idx <= sps->cpb_cnt_minus1; sched_sel_idx++) {
gst_nal_bs_read_ue (bs); /* bit_rate_value_minus1 */
gst_nal_bs_read_ue (bs); /* cpb_size_value_minus1 */
gst_nal_bs_read (bs, 1); /* cbr_flag */
}
sps->initial_cpb_removal_delay_length_minus1 = gst_nal_bs_read (bs, 5);
sps->cpb_removal_delay_length_minus1 = gst_nal_bs_read (bs, 5);
sps->dpb_output_delay_length_minus1 = gst_nal_bs_read (bs, 5);
sps->time_offset_length_minus1 = gst_nal_bs_read (bs, 5);
return TRUE;
}
GST_BOILERPLATE (GstH264Parse, gst_h264_parse, GstElement, GST_TYPE_ELEMENT);