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rtph265depay: Insert SPS/PPS NALs into the stream

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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
parent fee3129d49
commit 021333a9fc
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;