Attachment 76334 Details for Bug 61782 – quant-matrix deliver early

[patch] quant-matrix deliver early

zc-fix-matrix-new.patch (text/plain), 2.65 KB, created by Zhong Cong on 2013-03-11 12:40:56 UTC

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Creator: Zhong Cong

Created: 2013-03-11 12:40:56 UTC

Size: 2.65 KB

patch

obsolete

>From 20831a08e8a661b1e0a1fba4112b6717234ad6e8 Mon Sep 17 00:00:00 2001
>From: zhongcong <congx.zhong@intel.com>
>Date: Tue, 12 Mar 2013 20:01:56 +0800
>Subject: [PATCH] mpeg2: fix quant-matrix update early
>
>---
> gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c |   18 ++++++++++++------
> 1 file changed, 12 insertions(+), 6 deletions(-)
>
>diff --git a/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c b/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
>index de750fa..9844ecd 100644
>--- a/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
>+++ b/gst-libs/gst/vaapi/gstvaapidecoder_mpeg2.c
>@@ -192,6 +192,7 @@ struct _GstVaapiDecoderMpeg2Private {
>     guint                       progressive_sequence    : 1;
>     guint                       closed_gop              : 1;
>     guint                       broken_link             : 1;
>+	guint						update_qm				: 1;
> };
> 
> /* VLC decoder from gst-plugins-bad */
>@@ -708,12 +709,6 @@ decode_picture(GstVaapiDecoderMpeg2 *decoder, guchar *buf, guint buf_size)
>     gst_vaapi_picture_replace(&priv->current_picture, picture);
>     gst_vaapi_picture_unref(picture);
> 
>-    status = ensure_quant_matrix(decoder, picture);
>-    if (status != GST_VAAPI_DECODER_STATUS_SUCCESS) {
>-        GST_ERROR("failed to reset quantizer matrix");
>-        return status;
>-    }
>-
>     if (!gst_mpeg_video_parse_picture_header(pic_hdr, buf, buf_size, 4)) {
>         GST_ERROR("failed to parse picture header");
>         return GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
>@@ -992,6 +987,9 @@ decode_packet(GstVaapiDecoderMpeg2 *decoder, guchar *buf, guint buf_size)
>         if (!priv->width || !priv->height)
>             goto unknown_picture_size;
>         status = decode_picture(decoder, buf, buf_size);
>+		if (GST_VAAPI_DECODER_STATUS_SUCCESS == status){
>+			priv->update_qm = TRUE;
>+		}
>         break;
>     case GST_MPEG_VIDEO_PACKET_SEQUENCE:
>         status = decode_sequence(decoder, buf, buf_size);
>@@ -1038,6 +1036,13 @@ decode_packet(GstVaapiDecoderMpeg2 *decoder, guchar *buf, guint buf_size)
>                 type - GST_MPEG_VIDEO_PACKET_SLICE_MIN,
>                 buf, buf_size
>             );
>+			if (priv->update_qm){
>+			    status = ensure_quant_matrix(decoder, priv->current_picture);
>+			    if (status != GST_VAAPI_DECODER_STATUS_SUCCESS) {
>+			        GST_ERROR("failed to reset quantizer matrix");
>+			    }
>+				priv->update_qm = FALSE;
>+			}
>             break;
>         }
>         else if (type >= 0xb9 && type <= 0xff) {
>@@ -1210,6 +1215,7 @@ gst_vaapi_decoder_mpeg2_init(GstVaapiDecoderMpeg2 *decoder)
>     priv->progressive_sequence  = FALSE;
>     priv->closed_gop            = FALSE;
>     priv->broken_link           = FALSE;
>+	priv->update_qm				= FALSE;
> }
> 
> /**
>-- 
>1.7.9.5
>

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