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authorJay Freeman <saurik@saurik.com>2008-12-12 01:40:00 +0000
committerBaptiste Coudurier <baptiste.coudurier@gmail.com>2008-12-12 01:40:00 +0000
commit65c127e3d56c54a1679edfd62f1bd49d98ddbf38 (patch)
tree5a27c5d23b787397e435b91630d6bdd292bd4404 /libavcodec/mjpega_dump_header_bsf.c
parentd887151d8c55ac15be346e0236edd21ee05fa151 (diff)
fix mjpega bitfilter when dht, dqt, sof0 are not ordered as expected, patch by Jay Freeman, saurik at saurik com
Originally committed as revision 16074 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mjpega_dump_header_bsf.c')
-rw-r--r--libavcodec/mjpega_dump_header_bsf.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/libavcodec/mjpega_dump_header_bsf.c b/libavcodec/mjpega_dump_header_bsf.c
index a3f0131742..fb27efbf77 100644
--- a/libavcodec/mjpega_dump_header_bsf.c
+++ b/libavcodec/mjpega_dump_header_bsf.c
@@ -35,6 +35,7 @@ static int mjpega_dump_header(AVBitStreamFilterContext *bsfc, AVCodecContext *av
const uint8_t *buf, int buf_size, int keyframe)
{
uint8_t *poutbufp;
+ unsigned dqt = 0, dht = 0, sof0 = 0;
int i;
if (avctx->codec_id != CODEC_ID_MJPEG) {
@@ -59,12 +60,13 @@ static int mjpega_dump_header(AVBitStreamFilterContext *bsfc, AVCodecContext *av
for (i = 0; i < buf_size - 1; i++) {
if (buf[i] == 0xff) {
switch (buf[i + 1]) {
- case DQT: /* quant off */
- case DHT: /* huff off */
- case SOF0: /* image off */
- bytestream_put_be32(&poutbufp, i + 46);
- break;
+ case DQT: dqt = i + 46; break;
+ case DHT: dht = i + 46; break;
+ case SOF0: sof0 = i + 46; break;
case SOS:
+ bytestream_put_be32(&poutbufp, dqt); /* quant off */
+ bytestream_put_be32(&poutbufp, dht); /* huff off */
+ bytestream_put_be32(&poutbufp, sof0); /* image off */
bytestream_put_be32(&poutbufp, i + 46); /* scan off */
bytestream_put_be32(&poutbufp, i + 46 + AV_RB16(buf + i + 2)); /* data off */
bytestream_put_buffer(&poutbufp, buf + 2, buf_size - 2); /* skip already written SOI */