Merge branch 'release/0.8' into release/0.7

* release/0.8: (31 commits)
  svq1dec: call avcodec_set_dimensions() after dimensions changed. Fixes NGS00148
  vp3dec: Check coefficient index in vp3_dequant() Fixes NGS00145
  qdm2dec: fix buffer overflow. Fixes NGS00144
  h264: Fix invalid interlaced progressive MB combinations for direct mode prediction. Fixes Ticket312
  mpegvideo: dont use ff_mspel_motion() for vc1 Fixes Ticket655
  imgutils: Fix illegal read.
  ac3probe: Detect Sonic Foundry Soft Encode AC3 as raw AC3. Our ac3 code chain can handle it fine. More ideal would be to write a demuxer that actually extracts what can be from the additional headers and uses it for whatever it can be used for.
  mjpeg: support mpo Fixes stereoscopic_photo.mpo
  Add a version bump and APIchanges entry for avcodec_open2 and avformat_find_stream_info.
  lavf: fix multiplication overflow in avformat_find_stream_info()
  lavf: fix invalid reads in avformat_find_stream_info()
  lavf: add avformat_find_stream_info()
  lavc: fix parentheses placement in avcodec_open2().
  lavc: introduce avcodec_open2() as a replacement for avcodec_open().
  rawdec: use a default sample rate if none is specified. Fixes "ffmpeg -f s16le -i /dev/zero"
  rawdec: add check on sample_rate
  qdm2dec: check remaining input bits in the mainloop of qdm2_fft_decode_tones() This is neccessary but likely not sufficient to prevent out of array reads.
  cinepak: check strip_size
  wma: Check channel number before init. Fixes Ticket240
  Do not try to read 16bit gray png files with alpha channel.
  ...

Conflicts:
	libavcodec/version.h
	libavformat/version.h

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

1 files changed, 2 insertions, 1 deletions

diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 05ba027802..f8ebb1b02d 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -471,7 +471,8 @@ static int decode_frame(AVCodecContext *avctx,
                     avctx->pix_fmt = PIX_FMT_MONOBLACK;
                 } else if (s->color_type == PNG_COLOR_TYPE_PALETTE) {
                     avctx->pix_fmt = PIX_FMT_PAL8;
-                } else if (s->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
+                } else if (s->bit_depth == 8 &&
+                           s->color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
                     avctx->pix_fmt = PIX_FMT_GRAY8A;
                 } else {
                     goto fail;