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Merge commit '1720791e36f9cc24c05efea5bb275ab52156ce50'

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* commit '1720791e36f9cc24c05efea5bb275ab52156ce50':
  png: read and write stereo3d frame side data information

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
This commit is contained in:
Hendrik Leppkes 2015-11-02 11:50:35 +01:00
commit 1fc13a6269
1 changed files with 9 additions and 7 deletions
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16
libavcodec/pngdec.c
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@ -25,6 +25,7 @@
#include "libavutil/bprint.h"
#include "libavutil/imgutils.h"
#include "libavutil/stereo3d.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"
@ -1187,18 +1188,19 @@ static int decode_frame_common(AVCodecContext *avctx, PNGDecContext *s,
bytestream2_skip(&s->gb, length + 4);
break;
case MKTAG('s', 'T', 'E', 'R'): {
int mode = bytestream2_get_byte(&s->gb);
AVStereo3D *stereo3d = av_stereo3d_create_side_data(p);
if (!stereo3d) {
if (!stereo3d)
goto fail;
} else if (*s->gb.buffer == 0) {
stereo3d->type = AV_STEREO3D_SIDEBYSIDE;
stereo3d->flags = AV_STEREO3D_FLAG_INVERT;
} else if (*s->gb.buffer == 1) {
if (mode == 0 || mode == 1) {
stereo3d->type = AV_STEREO3D_SIDEBYSIDE;
stereo3d->flags = mode ? 0 : AV_STEREO3D_FLAG_INVERT;
} else {
av_log(avctx, AV_LOG_WARNING, "Broken sTER chunk - unknown value\n");
av_log(avctx, AV_LOG_WARNING,
"Unknown value in sTER chunk (%d)\n", mode);
}
bytestream2_skip(&s->gb, length + 4);
bytestream2_skip(&s->gb, 4); /* crc */
break;
}
case MKTAG('I', 'E', 'N', 'D'):