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rtph265depay: Insert SPS/PPS NALs into the stream

Browse source 
rtph264depay does the same and this fixes decoding of some streams with 32
SPS (or 256 PPS). It is allowed to have SPS ID 0 to 31 (or PPS ID 0 to 255),
but the field in the codec_data for the number of SPS or PPS is only 5
(or 8) bit. As such, 32 SPS (or 256 PPS) are interpreted as 0 everywhere.

This looks like a mistake in the part of the spect about the codec_data.
This commit is contained in:
Luis de Bethencourt 2015-08-12 16:11:00 +01:00 committed by Tim-Philipp Müller
parent 0bfa97b047
commit d10b6f1e3a
1 changed files with 50 additions and 0 deletions
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50
gst/rtp/gstrtph265depay.c
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@ -534,6 +534,56 @@ gst_rtp_h265_set_src_caps (GstRtpH265Depay * rtph265depay)
srccaps);
gst_caps_unref (srccaps);
/* Insert SPS and PPS into the stream on next opportunity */
{
gint i;
GstBuffer *codec_data;
GstMapInfo map;
guint8 *data;
guint len = 0;
for (i = 0; i < rtph265depay->sps->len; i++) {
len += 4 + gst_buffer_get_size (g_ptr_array_index (rtph265depay->sps, i));
}
for (i = 0; i < rtph265depay->pps->len; i++) {
len += 4 + gst_buffer_get_size (g_ptr_array_index (rtph265depay->pps, i));
}
codec_data = gst_buffer_new_and_alloc (len);
gst_buffer_map (codec_data, &map, GST_MAP_WRITE);
data = map.data;
for (i = 0; i < rtph265depay->sps->len; i++) {
GstBuffer *sps_buf = g_ptr_array_index (rtph265depay->sps, i);
guint sps_size = gst_buffer_get_size (sps_buf);
if (rtph265depay->byte_stream)
memcpy (data, sync_bytes, sizeof (sync_bytes));
else
GST_WRITE_UINT32_BE (data, sps_size);
gst_buffer_extract (sps_buf, 0, data + 4, -1);
data += 4 + sps_size;
}
for (i = 0; i < rtph265depay->pps->len; i++) {
GstBuffer *pps_buf = g_ptr_array_index (rtph265depay->pps, i);
guint pps_size = gst_buffer_get_size (pps_buf);
if (rtph265depay->byte_stream)
memcpy (data, sync_bytes, sizeof (sync_bytes));
else
GST_WRITE_UINT32_BE (data, pps_size);
gst_buffer_extract (pps_buf, 0, data + 4, -1);
data += 4 + pps_size;
}
gst_buffer_unmap (codec_data, &map);
if (rtph265depay->codec_data)
gst_buffer_unref (rtph265depay->codec_data);
rtph265depay->codec_data = codec_data;
}
if (res)
rtph265depay->new_codec_data = FALSE;