*pb_key_picture = true;
*pb_discardable_picture = false;
+ size_t i_tk;
for( ;; )
{
if( pp_simpleblock != NULL || ((el = ep->Get()) == NULL && pp_block != NULL) )
{
/* Check blocks validity to protect againts broken files */
- if( BlockFindTrackIndex( NULL, pp_block , pp_simpleblock ) )
+ if( BlockFindTrackIndex( &i_tk, pp_block , pp_simpleblock ) )
{
delete pp_block;
pp_simpleblock = NULL;
*pb_key_picture = pp_simpleblock->IsKeyframe();
*pb_discardable_picture = pp_simpleblock->IsDiscardable();
}
+ /* We have block group let's check if the picture is a keyframe */
+ else if( *pb_key_picture )
+ {
+ switch(tracks[i_tk]->fmt.i_codec)
+ {
+ case VLC_CODEC_THEORA:
+ {
+ DataBuffer *p_data = &pp_block->GetBuffer(0);
+ size_t sz = p_data->Size();
+ const uint8_t * p_buff = p_data->Buffer();
+ /* if the second bit of a Theora frame is 1
+ it's not a keyframe */
+ if( sz && p_buff )
+ {
+ if( p_buff[0] & 0x40 )
+ *pb_key_picture = false;
+ }
+ else
+ *pb_key_picture = false;
+ break;
+ }
+ }
+ }
/* update the index */
#define idx p_indexes[i_index - 1]