static gboolean gst_vdp_mpeg4_dec_flush (GstBaseVideoDecoder * base_video_decoder) { GstVdpMpeg4Dec *mpeg4_dec = GST_VDP_MPEG4_DEC (base_video_decoder); if (mpeg4_dec->b_frame) { gst_video_frame_unref (GST_VIDEO_FRAME_CAST (mpeg4_dec->b_frame)); mpeg4_dec->b_frame = NULL; } if (mpeg4_dec->f_frame) { gst_video_frame_unref (GST_VIDEO_FRAME_CAST (mpeg4_dec->f_frame)); mpeg4_dec->f_frame = NULL; } return TRUE; }
static GstFlowReturn gst_vdp_h264_dec_output (GstH264DPB * dpb, GstH264Frame * h264_frame, gpointer user_data) { GstBaseVideoDecoder *base_video_decoder = (GstBaseVideoDecoder *) user_data; GST_DEBUG ("poc: %d", h264_frame->poc); return gst_base_video_decoder_finish_frame (base_video_decoder, GST_VIDEO_FRAME_CAST (h264_frame)); }
static GstVideoFrame * gst_vdp_h264_dec_create_frame (GstBaseVideoDecoder * base_video_decoder) { return GST_VIDEO_FRAME_CAST (gst_h264_frame_new ()); }
static GstFlowReturn gst_vdp_mpeg4_dec_handle_frame (GstBaseVideoDecoder * base_video_decoder, GstVideoFrame * frame, GstClockTimeDiff deadline) { GstVdpMpeg4Dec *mpeg4_dec = GST_VDP_MPEG4_DEC (base_video_decoder); GstMpeg4Frame *mpeg4_frame; GstFlowReturn ret; Mpeg4VideoObjectLayer *vol; Mpeg4VideoObjectPlane vop; VdpPictureInfoMPEG4Part2 info; VdpBitstreamBuffer bufs[1]; GstVdpVideoBuffer *video_buf; mpeg4_frame = GST_MPEG4_FRAME (frame); ret = gst_vdp_mpeg4_dec_handle_configuration (mpeg4_dec, mpeg4_frame); if (ret != GST_FLOW_OK) return ret; vol = &mpeg4_dec->vol; if (!mpeg4_util_parse_VOP (mpeg4_frame->vop_buf, vol, &vop)) { gst_base_video_decoder_skip_frame (base_video_decoder, frame); return GST_FLOW_CUSTOM_ERROR; } /* calculate vop time */ mpeg4_frame->vop_time = vop.modulo_time_base * vol->vop_time_increment_resolution + vop.time_increment; if (mpeg4_dec->tframe == -1 && vop.coding_type == B_VOP) mpeg4_dec->tframe = mpeg4_frame->vop_time - mpeg4_dec->f_frame->vop_time; if (vop.coding_type != B_VOP) { if (mpeg4_dec->b_frame) { ret = gst_base_video_decoder_finish_frame (base_video_decoder, GST_VIDEO_FRAME_CAST (mpeg4_dec->b_frame)); if (mpeg4_dec->f_frame) gst_video_frame_unref (GST_VIDEO_FRAME_CAST (mpeg4_dec->f_frame)); mpeg4_dec->f_frame = mpeg4_dec->b_frame; mpeg4_dec->b_frame = NULL; } } info = gst_vdp_mpeg4_dec_fill_info (mpeg4_dec, mpeg4_frame, &vop); bufs[0].struct_version = VDP_BITSTREAM_BUFFER_VERSION; bufs[0].bitstream = GST_BUFFER_DATA (mpeg4_frame->vop_buf); bufs[0].bitstream_bytes = GST_BUFFER_SIZE (mpeg4_frame->vop_buf); ret = gst_vdp_decoder_render (GST_VDP_DECODER (base_video_decoder), (VdpPictureInfo *) & info, 1, bufs, &video_buf); if (ret != GST_FLOW_OK) { gst_base_video_decoder_skip_frame (base_video_decoder, frame); return ret; } frame->src_buffer = GST_BUFFER_CAST (video_buf); if (vop.coding_type == B_VOP) ret = gst_base_video_decoder_finish_frame (base_video_decoder, frame); else { gst_video_frame_ref (GST_VIDEO_FRAME_CAST (mpeg4_frame)); mpeg4_dec->b_frame = mpeg4_frame; ret = GST_FLOW_OK; } return ret; }