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decoder: h264: retain SEI messages until the end of frame.

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Retain the SEI messages that were parsed from the access unit until we
have completely decoded the current frame. This is done so that we can
peek at that data whenever necessary during decoding. e.g. for exposing
3D stereoscopic information at a later stage.
This commit is contained in:
Gwenole Beauchesne 2014-04-25 16:24:01 +02:00
parent fa7f9cd08c
commit a365dfd269
1 changed files with 18 additions and 7 deletions
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25
gst-libs/gst/vaapi/gstvaapidecoder_h264.c
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@ -66,17 +66,31 @@ struct _GstVaapiParserInfoH264 {
union {
GstH264SPS sps;
GstH264PPS pps;
GArray *sei;
GstH264SliceHdr slice_hdr;
} data;
guint state;
};
static void
gst_vaapi_parser_info_h264_finalize(GstVaapiParserInfoH264 *pi)
{
switch (pi->nalu.type) {
case GST_H264_NAL_SEI:
if (pi->data.sei) {
g_array_unref(pi->data.sei);
pi->data.sei = NULL;
}
break;
}
}
static inline const GstVaapiMiniObjectClass *
gst_vaapi_parser_info_h264_class(void)
{
static const GstVaapiMiniObjectClass GstVaapiParserInfoH264Class = {
sizeof(GstVaapiParserInfoH264),
NULL
.size = sizeof(GstVaapiParserInfoH264),
.finalize = (GDestroyNotify)gst_vaapi_parser_info_h264_finalize
};
return &GstVaapiParserInfoH264Class;
}
@ -1057,19 +1071,16 @@ parse_sei(GstVaapiDecoderH264 *decoder, GstVaapiDecoderUnit *unit)
{
GstVaapiDecoderH264Private * const priv = &decoder->priv;
GstVaapiParserInfoH264 * const pi = unit->parsed_info;
GArray *sei_messages = NULL;
GArray ** const sei_ptr = &pi->data.sei;
GstH264ParserResult result;
GST_DEBUG("parse SEI");
result = gst_h264_parser_parse_sei(priv->parser, &pi->nalu, &sei_messages);
result = gst_h264_parser_parse_sei(priv->parser, &pi->nalu, sei_ptr);
if (result != GST_H264_PARSER_OK) {
GST_WARNING("failed to parse SEI messages");
g_array_unref(sei_messages);
return get_status(result);
}
g_array_unref(sei_messages);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}