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Code Issues Releases Activity

mpegvideo: fix visualization buffer size.

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2011-12-27 05:53:58 +01:00
parent f2f8632aa5
commit b72544370a
1 changed files with 4 additions and 12 deletions
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16
libavcodec/mpegvideo.c
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@@ -827,15 +827,6 @@ av_cold int MPV_common_init(MpegEncContext *s)
// Note the + 1 is for a quicker mpeg4 slice_end detection
s->parse_context.state = -1;
if ((s->avctx->debug & (FF_DEBUG_VIS_QP | FF_DEBUG_VIS_MB_TYPE)) ||
s->avctx->debug_mv) {
s->visualization_buffer[0] = av_malloc((s->mb_width * 16 +
2 * EDGE_WIDTH) * s->mb_height * 16 + 2 * EDGE_WIDTH);
s->visualization_buffer[1] = av_malloc((s->mb_width * 16 +
2 * EDGE_WIDTH) * s->mb_height * 16 + 2 * EDGE_WIDTH);
s->visualization_buffer[2] = av_malloc((s->mb_width * 16 +
2 * EDGE_WIDTH) * s->mb_height * 16 + 2 * EDGE_WIDTH);
}
s->context_initialized = 1;
s->thread_context[0] = s;
@@ -1572,9 +1563,10 @@ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict)
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,
&h_chroma_shift, &v_chroma_shift);
for (i = 0; i < 3; i++) {
memcpy(s->visualization_buffer[i], pict->data[i],
(i == 0) ? pict->linesize[i] * height:
pict->linesize[i] * height >> v_chroma_shift);
size_t size= (i == 0) ? pict->linesize[i] * height:
pict->linesize[i] * height >> v_chroma_shift;
s->visualization_buffer[i]= av_realloc(s->visualization_buffer[i], size);
memcpy(s->visualization_buffer[i], pict->data[i], size);
pict->data[i] = s->visualization_buffer[i];
}
pict->type = FF_BUFFER_TYPE_COPY;