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Code Issues 1 Projects Releases Wiki Activity

rtph264depay: Make the SPS/PPS deduplication function generic

Browse source 
Make it not touch any internals of the depayloader

https://bugzilla.gnome.org/show_bug.cgi?id=705553
This commit is contained in:
Olivier Crête 2013-08-12 15:26:08 -04:00
parent b40bf67526
commit 742b90747d
2 changed files with 36 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

58
gst/rtp/gstrtph264depay.c
View file

@ -405,8 +405,9 @@ gst_rtp_h264_set_src_caps (GstRtpH264Depay * rtph264depay)
return res;
}
static gboolean
gst_rtp_h264_add_sps_pps (GstRtpH264Depay * rtph264depay, GstBuffer * nal)
gboolean
gst_rtp_h264_add_sps_pps (GstElement * rtph264, GPtrArray * sps_array,
GPtrArray * pps_array, GstBuffer * nal)
{
GstMapInfo map;
guchar type;
@ -420,13 +421,13 @@ gst_rtp_h264_add_sps_pps (GstRtpH264Depay * rtph264depay, GstBuffer * nal)
guint32 sps_id;
if (!parse_sps (&map, &sps_id)) {
GST_WARNING_OBJECT (rtph264depay, "Invalid SPS,"
GST_WARNING_OBJECT (rtph264, "Invalid SPS,"
" can't parse seq_parameter_set_id");
goto drop;
}
for (i = 0; i < rtph264depay->sps->len; i++) {
GstBuffer *sps = g_ptr_array_index (rtph264depay->sps, i);
for (i = 0; i < sps_array->len; i++) {
GstBuffer *sps = g_ptr_array_index (sps_array, i);
GstMapInfo spsmap;
guint32 tmp_sps_id;
@ -436,34 +437,33 @@ gst_rtp_h264_add_sps_pps (GstRtpH264Depay * rtph264depay, GstBuffer * nal)
if (sps_id == tmp_sps_id) {
if (map.size == spsmap.size &&
memcmp (map.data, spsmap.data, spsmap.size) == 0) {
GST_LOG_OBJECT (rtph264depay, "Unchanged SPS %u, not updating",
sps_id);
GST_LOG_OBJECT (rtph264, "Unchanged SPS %u, not updating", sps_id);
gst_buffer_unmap (sps, &spsmap);
goto drop;
} else {
gst_buffer_unmap (sps, &spsmap);
g_ptr_array_remove_index_fast (rtph264depay->sps, i);
g_ptr_array_add (rtph264depay->sps, nal);
GST_LOG_OBJECT (rtph264depay, "Modified SPS %u, replacing", sps_id);
g_ptr_array_remove_index_fast (sps_array, i);
g_ptr_array_add (sps_array, nal);
GST_LOG_OBJECT (rtph264, "Modified SPS %u, replacing", sps_id);
goto done;
}
}
gst_buffer_unmap (sps, &spsmap);
}
GST_LOG_OBJECT (rtph264depay, "Adding new SPS %u", sps_id);
g_ptr_array_add (rtph264depay->sps, nal);
GST_LOG_OBJECT (rtph264, "Adding new SPS %u", sps_id);
g_ptr_array_add (sps_array, nal);
} else if (type == 8) {
guint32 sps_id;
guint32 pps_id;
if (!parse_pps (&map, &sps_id, &pps_id)) {
GST_WARNING_OBJECT (rtph264depay, "Invalid PPS,"
GST_WARNING_OBJECT (rtph264, "Invalid PPS,"
" can't parse seq_parameter_set_id or pic_parameter_set_id");
goto drop;
}
for (i = 0; i < rtph264depay->pps->len; i++) {
GstBuffer *pps = g_ptr_array_index (rtph264depay->pps, i);
for (i = 0; i < pps_array->len; i++) {
GstBuffer *pps = g_ptr_array_index (pps_array, i);
GstMapInfo ppsmap;
guint32 tmp_sps_id;
guint32 tmp_pps_id;
@ -475,30 +475,29 @@ gst_rtp_h264_add_sps_pps (GstRtpH264Depay * rtph264depay, GstBuffer * nal)
if (sps_id == tmp_sps_id && pps_id == tmp_pps_id) {
if (map.size == ppsmap.size &&
memcmp (map.data, ppsmap.data, ppsmap.size) == 0) {
GST_LOG_OBJECT (rtph264depay, "Unchanged PPS %u:%u, not updating",
sps_id, pps_id);
GST_LOG_OBJECT (rtph264, "Unchanged PPS %u:%u, not updating", sps_id,
pps_id);
gst_buffer_unmap (pps, &ppsmap);
goto drop;
} else {
gst_buffer_unmap (pps, &ppsmap);
g_ptr_array_remove_index_fast (rtph264depay->pps, i);
g_ptr_array_add (rtph264depay->pps, nal);
GST_LOG_OBJECT (rtph264depay, "Modified PPS %u:%u, replacing",
g_ptr_array_remove_index_fast (pps_array, i);
g_ptr_array_add (pps_array, nal);
GST_LOG_OBJECT (rtph264, "Modified PPS %u:%u, replacing",
sps_id, pps_id);
goto done;
}
}
gst_buffer_unmap (pps, &ppsmap);
}
GST_LOG_OBJECT (rtph264depay, "Adding new PPS %u:%i", sps_id, pps_id);
g_ptr_array_add (rtph264depay->pps, nal);
GST_LOG_OBJECT (rtph264, "Adding new PPS %u:%i", sps_id, pps_id);
g_ptr_array_add (pps_array, nal);
} else {
goto drop;
}
done:
gst_buffer_unmap (nal, &map);
rtph264depay->new_codec_data = TRUE;
return TRUE;
@ -509,6 +508,15 @@ drop:
return FALSE;
}
static void
gst_rtp_h264_depay_add_sps_pps (GstRtpH264Depay * rtph264depay, GstBuffer * nal)
{
if (gst_rtp_h264_add_sps_pps (GST_ELEMENT (rtph264depay),
rtph264depay->sps, rtph264depay->pps, nal))
rtph264depay->new_codec_data = TRUE;
}
static gboolean
gst_rtp_h264_depay_setcaps (GstRTPBaseDepayload * depayload, GstCaps * caps)
{
@ -610,7 +618,7 @@ gst_rtp_h264_depay_setcaps (GstRTPBaseDepayload * depayload, GstCaps * caps)
gst_buffer_unmap (nal, &nalmap);
gst_buffer_set_size (nal, nal_len);
gst_rtp_h264_add_sps_pps (rtph264depay, nal);
gst_rtp_h264_depay_add_sps_pps (rtph264depay, nal);
}
g_strfreev (params);
@ -679,7 +687,7 @@ gst_rtp_h264_depay_handle_nal (GstRtpH264Depay * rtph264depay, GstBuffer * nal,
if (!rtph264depay->byte_stream) {
if (nal_type == 7 || nal_type == 8) {
gst_rtp_h264_add_sps_pps (rtph264depay,
gst_rtp_h264_depay_add_sps_pps (rtph264depay,
gst_buffer_copy_region (nal, GST_BUFFER_COPY_ALL,
4, gst_buffer_get_size (nal) - 4));
gst_buffer_unmap (nal, &map);

3
gst/rtp/gstrtph264depay.h
View file

@ -77,6 +77,9 @@ GType gst_rtp_h264_depay_get_type (void);
gboolean gst_rtp_h264_depay_plugin_init (GstPlugin * plugin);
gboolean gst_rtp_h264_add_sps_pps (GstElement * rtph264, GPtrArray * sps,
GPtrArray * pps, GstBuffer * nal);
G_END_DECLS
#endif /* __GST_RTP_H264_DEPAY_H__ */