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h264parse: fix caps parameters setting

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Also consider PPS when selecting SPS to pick parameters from.
Only update caps when settings actually changed, and when these are valid.
This commit is contained in:
Mark Nauwelaerts 2009-12-10 12:56:47 +01:00
parent a93f6b8b38
commit ed058d7542
1 changed files with 17 additions and 8 deletions
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25
gst/h264parse/gsth264parse.c
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@ -1172,10 +1172,17 @@ gst_h264_parse_make_codec_data (GstH264Parse * h264parse)
static gboolean
gst_h264_parse_update_src_caps (GstH264Parse * h264parse, GstCaps * caps)
{
GstH264Sps *sps;
GstH264Sps *sps = NULL;
GstCaps *src_caps = NULL;
sps = h264parse->sps;
/* current PPS dictates which SPS to use */
if (h264parse->pps && h264parse->pps->sps_id < MAX_SPS_COUNT) {
sps = h264parse->sps_buffers[h264parse->pps->sps_id];
}
/* failing that, we'll take most recent SPS we can get */
if (!sps) {
sps = h264parse->sps;
}
src_caps = h264parse->src_caps;
if (G_UNLIKELY (src_caps == NULL))
@ -1187,7 +1194,8 @@ gst_h264_parse_update_src_caps (GstH264Parse * h264parse, GstCaps * caps)
/* if some upstream metadata missing, fill in from parsed stream */
/* width / height */
if (sps && (!h264parse->width || !h264parse->height)) {
if (sps && (sps->width > 0 && sps->height > 0) &&
(h264parse->width != sps->width || h264parse->height != sps->height)) {
gint width, height;
width = h264parse->width = sps->width;
@ -1201,15 +1209,16 @@ gst_h264_parse_update_src_caps (GstH264Parse * h264parse, GstCaps * caps)
}
/* framerate */
if (sps && (!h264parse->fps_num && !h264parse->fps_den)) {
if (sps && (sps->time_scale > 0 && sps->num_units_in_tick > 0) &&
(h264parse->fps_num != sps->time_scale ||
h264parse->fps_den != sps->num_units_in_tick)) {
gint fps_num, fps_den;
fps_num = sps->time_scale;
fps_den = sps->num_units_in_tick;
fps_num = h264parse->fps_num = sps->time_scale;
fps_den = h264parse->fps_den = sps->num_units_in_tick;
/* FIXME verify / also handle other cases */
if (fps_num && fps_den &&
sps->fixed_frame_rate_flag && sps->frame_mbs_only_flag) {
if (sps->fixed_frame_rate_flag && sps->frame_mbs_only_flag) {
src_caps = gst_caps_copy (caps);
GST_DEBUG_OBJECT (h264parse, "updating caps fps %d/%d", fps_num, fps_den);
gst_caps_replace (&src_caps, gst_caps_copy (src_caps));