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Merge commit '41a10f3ba149a2012de499d0b4ad4955d81f28d5'

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* commit '41a10f3ba149a2012de499d0b4ad4955d81f28d5':
  vp6: Support cropping to AVCodecContext.width/height

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-10-10 11:37:36 +02:00
commit 70025c07a7
1 changed files with 14 additions and 4 deletions
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18
libavcodec/vp6.c
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@ -83,10 +83,20 @@ static int vp6_parse_header(VP56Context *s, const uint8_t *buf, int buf_size)
if (!s->macroblocks || /* first frame */
16*cols != s->avctx->coded_width ||
16*rows != s->avctx->coded_height) {
avcodec_set_dimensions(s->avctx, 16*cols, 16*rows);
if (s->avctx->extradata_size == 1) {
s->avctx->width -= s->avctx->extradata[0] >> 4;
s->avctx->height -= s->avctx->extradata[0] & 0x0F;
if (s->avctx->extradata_size == 0 &&
FFALIGN(s->avctx->width, 16) == 16 * cols &&
FFALIGN(s->avctx->height, 16) == 16 * rows) {
// We assume this is properly signalled container cropping,
// in an F4V file. Just set the coded_width/height, don't
// touch the cropped ones.
s->avctx->coded_width = 16 * cols;
s->avctx->coded_height = 16 * rows;
} else {
avcodec_set_dimensions(s->avctx, 16 * cols, 16 * rows);
if (s->avctx->extradata_size == 1) {
s->avctx->width -= s->avctx->extradata[0] >> 4;
s->avctx->height -= s->avctx->extradata[0] & 0x0F;
}
}
res = VP56_SIZE_CHANGE;
}