Merge remote-tracking branch 'qatar/master'

* qatar/master:
  h264: stricter reference limit enforcement.
  h264: increase reference poc list from 16 to 32.
  xa_adpcm: limit filter to prevent xa_adpcm_table[] array bounds overruns.
  snow: check reference frame indices.
  snow: reject unsupported chroma shifts.
  Add ffvhuff encoding and decoding regression test
  anm: convert to bytestream2 API
  bytestream: add more unchecked variants for bytestream2 API
  jvdec: unbreak video decoding
  jv demux: set video stream duration
  fate: add pam image regression test

Conflicts:
	libavcodec/adpcm.c
	libavcodec/anm.c
	libavcodec/h264.c
	libavcodec/mpegvideo.h
	libavcodec/snowdec.c

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

tests/codec-regression.sh

@@ -227,6 +227,11 @@ do_video_encoding ffv1.avi "-strict -2 -an -vcodec ffv1"
 do_video_decoding
 fi
 
+if [ -n "$do_ffvhuff" ] ; then
+do_video_encoding ffvhuff.avi "-an -vcodec ffvhuff"
+do_video_decoding ""
+fi
+
 if [ -n "$do_snow" ] ; then
 do_video_encoding snow.avi "-strict -2 -an -vcodec snow -qscale 2 -flags +qpel -me_method iter -dia_size 2 -cmp 12 -subcmp 12 -s 128x64"
 do_video_decoding "" "-s 352x288"

tests/lavf-regression.sh

@@ -211,6 +211,10 @@ if [ -n "$do_jpg" ] ; then
 do_image_formats jpg "-pix_fmt yuvj420p" "-f image2"
 fi
 
+if [ -n "$do_pam" ] ; then
+do_image_formats pam
+fi
+
 if [ -n "$do_pcx" ] ; then
 do_image_formats pcx
 fi

tests/ref/lavf/pam

@@ -0,0 +1,3 @@
+0dce5565222cf0f8b309467f279aecd2 *./tests/data/images/pam/02.pam
+./tests/data/images/pam/%02d.pam CRC=0x6da01946
+  304191 ./tests/data/images/pam/02.pam

tests/ref/vsynth1/ffvhuff

@@ -0,0 +1,4 @@
+0632ffae6f1e06dd299bf41a845b9099 *./tests/data/vsynth1/ffvhuff.avi
+ 5987208 ./tests/data/vsynth1/ffvhuff.avi
+c5ccac874dbf808e9088bc3107860042 *./tests/data/ffvhuff.vsynth1.out.yuv
+stddev:    0.00 PSNR:999.99 MAXDIFF:    0 bytes:  7603200/  7603200

tests/ref/vsynth2/ffvhuff

@@ -0,0 +1,4 @@
+63926d8835dd5779dca0a4bc081ca8ae *./tests/data/vsynth2/ffvhuff.avi
+ 4988056 ./tests/data/vsynth2/ffvhuff.avi
+dde5895817ad9d219f79a52d0bdfb001 *./tests/data/ffvhuff.vsynth2.out.yuv
+stddev:    0.00 PSNR:999.99 MAXDIFF:    0 bytes:  7603200/  7603200