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video-converter: take offset into account when unpacking

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When we can directly take the input line from the source frame when
unpacking, also take into account the x offset.
This commit is contained in:
Wim Taymans 2014-11-12 09:57:38 +01:00
parent bb4863111b
commit 61e84bc435
1 changed files with 4 additions and 1 deletions
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5
gst-libs/gst/video/video-converter.c
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@ -171,6 +171,7 @@ struct _GstVideoConverter
GstVideoScaler *v_scaler;
gint v_scale_width;
gint v_scale_format;
gint unpack_pstride;
gint pack_pstride;
const GstVideoFrame *src;
@ -389,6 +390,7 @@ chain_unpack_line (GstVideoConverter * convert)
convert->current_format = convert->in_info.finfo->unpack_format;
convert->current_pstride = convert->in_bits >> 1;
convert->unpack_pstride = convert->current_pstride;
convert->identity_unpack =
(convert->current_format == convert->in_info.finfo->format);
@ -1456,7 +1458,8 @@ do_unpack_lines (GstLineCache * cache, gint out_line, gint in_line,
convert->in_width);
} else {
GST_DEBUG ("get src line %d (%u)", in_line, cline);
tmpline = FRAME_GET_LINE (convert->src, cline);
tmpline = ((guint8 *) FRAME_GET_LINE (convert->src, cline)) +
convert->in_x * convert->unpack_pstride;
}
gst_line_cache_add_line (cache, in_line, tmpline);