lavc/hevc_ps: Fix offset for yuv422 and yuv444.
authorCarl Eugen Hoyos <cehoyos@ag.or.at>
Wed, 9 Mar 2016 13:00:57 +0000 (14:00 +0100)
committerCarl Eugen Hoyos <cehoyos@ag.or.at>
Wed, 9 Mar 2016 13:00:57 +0000 (14:00 +0100)
Fixes ticket #4980.
Analyzed-by: kurosu and Hendrik
Reviewed-by: Ronald
libavcodec/hevc_ps.c

index 64d6e2f..bcb63a3 100644 (file)
@@ -856,11 +856,12 @@ int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
         return ret;
 
     if (get_bits1(gb)) { // pic_conformance_flag
-        //TODO: * 2 is only valid for 420
-        sps->pic_conf_win.left_offset   = get_ue_golomb_long(gb) * 2;
-        sps->pic_conf_win.right_offset  = get_ue_golomb_long(gb) * 2;
-        sps->pic_conf_win.top_offset    = get_ue_golomb_long(gb) * 2;
-        sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
+        int vert_mult  = 1 + (sps->chroma_format_idc < 2);
+        int horiz_mult = 1 + (sps->chroma_format_idc < 3);
+        sps->pic_conf_win.left_offset   = get_ue_golomb_long(gb) * horiz_mult;
+        sps->pic_conf_win.right_offset  = get_ue_golomb_long(gb) * horiz_mult;
+        sps->pic_conf_win.top_offset    = get_ue_golomb_long(gb) *  vert_mult;
+        sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) *  vert_mult;
 
         if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
             av_log(avctx, AV_LOG_DEBUG,