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mpeg2: reset quantization matrices on new sequence headers.

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The MPEG-2 standard specifies (6.3.7) that all quantisation matrices
shall be reset to their default values when a Sequence_Header() is
decoded.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
This commit is contained in:
Zhong Cong 2013-06-07 20:08:43 +08:00 committed by Gwenole Beauchesne
parent 800b66f071
commit c2ddf464e5
1 changed files with 1 additions and 0 deletions
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gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
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@ -580,6 +580,7 @@ decode_sequence(GstVaapiDecoderMpeg2 *decoder, GstVaapiDecoderUnit *unit)
gst_vaapi_parser_info_mpeg2_replace(&priv->seq_ext, NULL);
gst_vaapi_parser_info_mpeg2_replace(&priv->seq_display_ext, NULL);
gst_vaapi_parser_info_mpeg2_replace(&priv->seq_scalable_ext, NULL);
gst_vaapi_parser_info_mpeg2_replace(&priv->quant_matrix, NULL);
priv->fps_n = seq_hdr->fps_n;
priv->fps_d = seq_hdr->fps_d;