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mpeg2: use sequence_display_extension() to compute PAR.

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Also compute pixel-aspect-ratio from sequence_display_extension(),
should it exist in the bitstream.
This commit is contained in:
Gwenole Beauchesne 2013-01-02 14:10:20 +01:00
parent 65ede48b7b
commit 9458bbdc16
1 changed files with 12 additions and 10 deletions
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22
gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
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@ -596,10 +596,6 @@ decode_sequence(GstVaapiDecoderMpeg2 *decoder, GstVaapiDecoderUnitMpeg2 *unit)
pts_set_framerate(&priv->tsg, priv->fps_n, priv->fps_d);
gst_vaapi_decoder_set_framerate(base_decoder, priv->fps_n, priv->fps_d);
if (gst_mpeg_video_finalise_mpeg2_sequence_header(seq_hdr, NULL, NULL))
gst_vaapi_decoder_set_pixel_aspect_ratio(base_decoder,
seq_hdr->par_w, seq_hdr->par_h);
priv->width = seq_hdr->width;
priv->height = seq_hdr->height;
priv->size_changed = TRUE;
@ -627,7 +623,6 @@ decode_sequence_ext(GstVaapiDecoderMpeg2 *decoder,
{
GstVaapiDecoder * const base_decoder = GST_VAAPI_DECODER(decoder);
GstVaapiDecoderMpeg2Private * const priv = decoder->priv;
GstMpegVideoSequenceHdr * const seq_hdr = &priv->seq_hdr_unit->data.seq_hdr;
GstMpegVideoSequenceExt *seq_ext;
GstVaapiProfile profile;
guint width, height;
@ -677,11 +672,6 @@ decode_sequence_ext(GstVaapiDecoderMpeg2 *decoder,
priv->profile = profile;
priv->profile_changed = TRUE;
}
if (gst_mpeg_video_finalise_mpeg2_sequence_header(seq_hdr, seq_ext, NULL))
gst_vaapi_decoder_set_pixel_aspect_ratio(base_decoder,
seq_hdr->par_w, seq_hdr->par_h);
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
@ -1317,6 +1307,9 @@ gst_vaapi_decoder_mpeg2_start_frame(GstVaapiDecoder *base_decoder,
GstVaapiDecoderMpeg2 * const decoder =
GST_VAAPI_DECODER_MPEG2(base_decoder);
GstVaapiDecoderMpeg2Private * const priv = decoder->priv;
GstMpegVideoSequenceHdr *seq_hdr;
GstMpegVideoSequenceExt *seq_ext;
GstMpegVideoSequenceDisplayExt *seq_display_ext;
GstVaapiPicture *picture;
GstVaapiDecoderStatus status;
@ -1327,6 +1320,15 @@ gst_vaapi_decoder_mpeg2_start_frame(GstVaapiDecoder *base_decoder,
return GST_VAAPI_DECODER_STATUS_SUCCESS;
}
seq_hdr = &priv->seq_hdr_unit->data.seq_hdr;
seq_ext = priv->seq_ext_unit ? &priv->seq_ext_unit->data.seq_ext : NULL;
seq_display_ext = priv->seq_display_ext_unit ?
&priv->seq_display_ext_unit->data.seq_display_ext : NULL;
if (gst_mpeg_video_finalise_mpeg2_sequence_header(seq_hdr, seq_ext,
seq_display_ext))
gst_vaapi_decoder_set_pixel_aspect_ratio(base_decoder,
seq_hdr->par_w, seq_hdr->par_h);
status = ensure_context(decoder);
if (status != GST_VAAPI_DECODER_STATUS_SUCCESS) {
GST_ERROR("failed to reset context");