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Always allocate a buffer of AVPALETTE_SIZE for palette in the subtitle

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decoders instead of as small as possible.
This avoids completely unnecessary issues with e.g. libswscale.

Originally committed as revision 19673 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2009-08-20 18:54:50 +00:00
parent 1b03a9d607
commit 29d7eef7dc
3 changed files with 3 additions and 4 deletions
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2
libavcodec/dvbsubdec.c
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@ -1314,7 +1314,7 @@ static int dvbsub_display_end_segment(AVCodecContext *avctx, const uint8_t *buf,
break;
}
rect->pict.data[1] = av_malloc((1 << region->depth) * sizeof(uint32_t));
rect->pict.data[1] = av_mallocz(AVPALETTE_SIZE);
memcpy(rect->pict.data[1], clut_table, (1 << region->depth) * sizeof(uint32_t));
rect->pict.data[0] = av_malloc(region->buf_size);

3
libavcodec/dvdsubdec.c
View File

@ -318,14 +318,13 @@ static int decode_dvd_subtitles(AVSubtitle *sub_header,
buf, offset1, buf_size, is_8bit);
decode_rle(bitmap + w, w * 2, w, h / 2,
buf, offset2, buf_size, is_8bit);
sub_header->rects[0]->pict.data[1] = av_mallocz(AVPALETTE_SIZE);
if (is_8bit) {
if (yuv_palette == 0)
goto fail;
sub_header->rects[0]->pict.data[1] = av_malloc(256 * 4);
sub_header->rects[0]->nb_colors = 256;
yuv_a_to_rgba(yuv_palette, alpha, (uint32_t*)sub_header->rects[0]->pict.data[1], 256);
} else {
sub_header->rects[0]->pict.data[1] = av_malloc(4 * 4);
sub_header->rects[0]->nb_colors = 4;
guess_palette((uint32_t*)sub_header->rects[0]->pict.data[1],
colormap, alpha, 0xffff00);

2
libavcodec/xsubdec.c
View File

@ -95,7 +95,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
sub->rects[0]->pict.linesize[0] = w;
sub->rects[0]->pict.data[0] = av_malloc(w * h);
sub->rects[0]->nb_colors = 4;
sub->rects[0]->pict.data[1] = av_malloc(sub->rects[0]->nb_colors * 4);
sub->rects[0]->pict.data[1] = av_mallocz(AVPALETTE_SIZE);
// read palette
for (i = 0; i < sub->rects[0]->nb_colors; i++)