Merge remote-tracking branch 'qatar/master'

* qatar/master:
  mov: Use defines for sample flags in fragments
  mov: Use defines for trun flags
  mov: Use defines for tfhd flags
  proresenc: force bitrate not to exceed given limit
  vc1parse: call vc1_init_common().
  wma: don't return 0 on invalid packets.
  asf: prevent packet_size_left from going negative if hdrlen > pktlen.
  mjpegb: don't return 0 at the end of frame decoding.
  rtpdec: Identify incorrectly signalled H263
  vp8dsp: split long line.
  aiff: don't skip block_align==0 check on COMM-after-SSND files.
  dpcm: ignore extra unpaired bytes in stereo streams.
  mp3on4: require a minimum framesize.
  mpc7: assign an error level + context to av_log() msg.
  huffyuv: error out on bit overrun.
  dct-test: Add the missing ff_ prefix to the altivec functions
  dct-test: Remove a stray declaration of a nonexistent function
  movenc: Write the unknown duration as 64 bit fields in ismv
  movenc: Write track durations with all bits set if duration is unknown

Conflicts:
	libavcodec/dct-test.c
	libavcodec/wmadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 2 insertions, 2 deletions

diff --git a/libavcodec/mjpegbdec.c b/libavcodec/mjpegbdec.c
index fc77b14b44..b70311b795 100644
--- a/libavcodec/mjpegbdec.c
+++ b/libavcodec/mjpegbdec.c
@@ -69,7 +69,7 @@ read_header:
     if (get_bits_long(&hgb, 32) != MKBETAG('m','j','p','g'))
     {
         av_log(avctx, AV_LOG_WARNING, "not mjpeg-b (bad fourcc)\n");
-        return 0;
+        return AVERROR_INVALIDDATA;
     }
 
     field_size = get_bits_long(&hgb, 32); /* field size */
@@ -149,7 +149,7 @@ read_header:
         picture->quality*= FF_QP2LAMBDA;
     }
 
-    return buf_ptr - buf;
+    return buf_size;
 }
 
 AVCodec ff_mjpegb_decoder = {