static gboolean
gst_vdp_h264_dec_flush (GstBaseVideoDecoder * base_video_decoder)
{
GstVdpH264Dec *h264_dec = GST_VDP_H264_DEC (base_video_decoder);
h264_dec->got_idr = FALSE;
gst_h264_dpb_flush (h264_dec->dpb, FALSE);
return TRUE;
}
static GstFlowReturn
gst_vdp_h264_dec_idr (GstVdpH264Dec * h264_dec, GstH264Frame * h264_frame)
{
GstH264Slice *slice;
GstH264Sequence *seq;
h264_dec->poc_msb = 0;
h264_dec->prev_poc_lsb = 0;
slice = &h264_frame->slice_hdr;
if (slice->dec_ref_pic_marking.no_output_of_prior_pics_flag)
gst_h264_dpb_flush (h264_dec->dpb, FALSE);
else
gst_h264_dpb_flush (h264_dec->dpb, TRUE);
if (slice->dec_ref_pic_marking.long_term_reference_flag)
g_object_set (h264_dec->dpb, "max-longterm-frame-idx", 0, NULL);
else
g_object_set (h264_dec->dpb, "max-longterm-frame-idx", -1, NULL);
seq = slice->picture->sequence;
if (seq != h264_dec->sequence) {
GstVideoState state;
VdpDecoderProfile profile;
GstFlowReturn ret;
state =
gst_base_video_decoder_get_state (GST_BASE_VIDEO_DECODER (h264_dec));
state.width = (seq->pic_width_in_mbs_minus1 + 1) * 16 -
2 * seq->frame_crop_right_offset;
state.height = (2 - seq->frame_mbs_only_flag) *
(seq->pic_height_in_map_units_minus1 + 1) * 16;
if (seq->frame_mbs_only_flag)
state.height -= 2 * seq->frame_crop_bottom_offset;
else
state.height -= 4 * seq->frame_crop_bottom_offset;
/* calculate framerate if we haven't got one */
if (state.fps_n == 0 && seq->vui_parameters_present_flag) {
GstH264VUIParameters *vui;
guint16 par_n, par_d;
vui = &seq->vui_parameters;
if (gst_vdp_h264_dec_calculate_par (vui, &par_n, &par_d)) {
state.par_n = par_n;
state.par_d = par_d;
}
if (vui->timing_info_present_flag && vui->fixed_frame_rate_flag) {
state.fps_n = vui->time_scale;
state.fps_d = vui->num_units_in_tick;
if (seq->frame_mbs_only_flag)
state.fps_d *= 2;
}
}
gst_base_video_decoder_set_state (GST_BASE_VIDEO_DECODER (h264_dec), state);
switch (seq->profile_idc) {
case 66:
profile = VDP_DECODER_PROFILE_H264_BASELINE;
break;
case 77:
profile = VDP_DECODER_PROFILE_H264_MAIN;
break;
case 100:
profile = VDP_DECODER_PROFILE_H264_HIGH;
break;
default:
GST_ELEMENT_ERROR (h264_dec, STREAM, WRONG_TYPE,
("vdpauh264dec doesn't support this streams profile"),
("profile_idc: %d", seq->profile_idc));
return GST_FLOW_ERROR;
}
ret = gst_vdp_decoder_init_decoder (GST_VDP_DECODER (h264_dec), profile,
seq->num_ref_frames);
if (ret != GST_FLOW_OK)
return ret;
g_object_set (h264_dec->dpb, "num-ref-frames", seq->num_ref_frames, NULL);
h264_dec->sequence = seq;
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_vdp_h264_dec_idr (GstVdpH264Dec * h264_dec, GstVideoCodecFrame * frame,
GstH264SliceHdr * slice)
{
GstH264SPS *seq;
GST_DEBUG_OBJECT (h264_dec, "Handling IDR slice");
h264_dec->poc_msb = 0;
h264_dec->prev_poc_lsb = 0;
if (slice->dec_ref_pic_marking.no_output_of_prior_pics_flag)
gst_h264_dpb_flush (h264_dec->dpb, FALSE);
else
gst_h264_dpb_flush (h264_dec->dpb, TRUE);
if (slice->dec_ref_pic_marking.long_term_reference_flag)
g_object_set (h264_dec->dpb, "max-longterm-frame-idx", 0, NULL);
else
g_object_set (h264_dec->dpb, "max-longterm-frame-idx", -1, NULL);
seq = slice->pps->sequence;
if (seq->id != h264_dec->current_sps) {
GstVideoCodecState *state;
VdpDecoderProfile profile;
GstFlowReturn ret;
GST_DEBUG_OBJECT (h264_dec, "Sequence changed !");
state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (h264_dec),
GST_VIDEO_FORMAT_YV12, seq->width, seq->height, h264_dec->input_state);
/* calculate framerate if we haven't got one */
if (state->info.fps_n == 0) {
state->info.fps_n = seq->fps_num;
state->info.fps_d = seq->fps_den;
}
if (state->info.par_n == 0 && seq->vui_parameters_present_flag) {
state->info.par_n = seq->vui_parameters.par_n;
state->info.par_d = seq->vui_parameters.par_d;
}
if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (h264_dec)))
goto nego_fail;
switch (seq->profile_idc) {
case 66:
profile = VDP_DECODER_PROFILE_H264_BASELINE;
break;
case 77:
profile = VDP_DECODER_PROFILE_H264_MAIN;
break;
case 100:
profile = VDP_DECODER_PROFILE_H264_HIGH;
break;
default:
goto profile_not_suported;
}
ret = gst_vdp_decoder_init_decoder (GST_VDP_DECODER (h264_dec), profile,
seq->num_ref_frames, h264_dec->input_state);
if (ret != GST_FLOW_OK)
return ret;
g_object_set (h264_dec->dpb, "num-ref-frames", seq->num_ref_frames, NULL);
h264_dec->current_sps = seq->id;
}
return GST_FLOW_OK;
profile_not_suported:
{
GST_ELEMENT_ERROR (h264_dec, STREAM, WRONG_TYPE,
("vdpauh264dec doesn't support this streams profile"),
("profile_idc: %d", seq->profile_idc));
return GST_FLOW_ERROR;
}
nego_fail:
{
GST_ERROR_OBJECT (h264_dec, "Negotiation failed");
return GST_FLOW_NOT_NEGOTIATED;
}
}
