Merge commit '802713c4'

* commit '802713c4':
  mss2: prevent potential uninitialized reads
  mss2: reindent after last commit
  mss2: fix handling of unmasked implicit WMV9 rectangles
  configure: add lavu dependency to lavr/lavfi .pc files
  x86inc: Set program_name outside of x86inc.asm

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

configure

@@ -4417,7 +4417,7 @@ Cflags: -I\${includedir}
 EOF
 }
 
-libavfilter_pc_deps=""
+libavfilter_pc_deps="libavutil = $LIBAVUTIL_VERSION"
 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
@@ -4434,7 +4434,7 @@ pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_V
 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
-pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
+pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
 

libavcodec/mss2.c

@@ -474,7 +474,7 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     int keyframe, has_wmv9, has_mv, is_rle, is_555, ret;
 
     Rectangle wmv9rects[MAX_WMV9_RECTANGLES], *r;
-    int used_rects = 0, i, implicit_rect, av_uninit(wmv9_mask);
+    int used_rects = 0, i, implicit_rect = 0, av_uninit(wmv9_mask);
 
     av_assert0(FF_INPUT_BUFFER_PADDING_SIZE >=
                ARITH2_PADDING + (MIN_CACHE_BITS + 7) / 8);
@@ -650,7 +650,14 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
             return AVERROR_INVALIDDATA;
 
         buf_size -= bytestream2_tell(&gB);
-    } else if (is_rle) {
+    } else {
+        if (keyframe) {
+            c->corrupted = 0;
+            ff_mss12_slicecontext_reset(&ctx->sc[0]);
+            if (c->slice_split)
+                ff_mss12_slicecontext_reset(&ctx->sc[1]);
+        }
+        if (is_rle) {
             init_get_bits(&gb, buf, buf_size * 8);
             if (ret = decode_rle(&gb, c->pal_pic, c->pal_stride,
                                  c->rgb_pic, c->rgb_stride, c->pal, keyframe,
@@ -669,14 +676,8 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
             align_get_bits(&gb);
             buf      += get_bits_count(&gb) >> 3;
             buf_size -= get_bits_count(&gb) >> 3;
-    } else {
-        if (keyframe) {
-            c->corrupted = 0;
-            ff_mss12_slicecontext_reset(&ctx->sc[0]);
-            if (c->slice_split)
-                ff_mss12_slicecontext_reset(&ctx->sc[1]);
-        }
-        else if (c->corrupted)
+        } else if (!implicit_rect || wmv9_mask != -1) {
+            if (c->corrupted)
                 return AVERROR_INVALIDDATA;
             bytestream2_init(&gB, buf, buf_size + ARITH2_PADDING);
             arith2_init(&acoder, &gB);
@@ -702,6 +703,8 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
                 buf      += arith2_get_consumed_bytes(&acoder);
                 buf_size -= arith2_get_consumed_bytes(&acoder);
             }
+        } else
+            memset(c->pal_pic, 0, c->pal_stride * avctx->height);
     }
 
     if (has_wmv9) {
@@ -836,8 +839,8 @@ static av_cold int mss2_decode_init(AVCodecContext *avctx)
     if (ret = ff_mss12_decode_init(c, 1, &ctx->sc[0], &ctx->sc[1]))
         return ret;
     c->pal_stride   = c->mask_stride;
-    c->pal_pic      = av_malloc(c->pal_stride * avctx->height);
-    c->last_pal_pic = av_malloc(c->pal_stride * avctx->height);
+    c->pal_pic      = av_mallocz(c->pal_stride * avctx->height);
+    c->last_pal_pic = av_mallocz(c->pal_stride * avctx->height);
     if (!c->pal_pic || !c->last_pal_pic) {
         mss2_decode_end(avctx);
         return AVERROR(ENOMEM);

libavutil/x86/x86inc.asm

@@ -35,7 +35,7 @@
 ; to x264-devel@videolan.org .
 
 %ifndef program_name
-    %define program_name ff
+    %define program_name x264
 %endif
 
 %define WIN64  0

libavutil/x86/x86util.asm

@@ -23,6 +23,7 @@
 ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 ;******************************************************************************
 
+%define program_name ff
 %define cpuflags_mmxext cpuflags_mmx2
 
 %include "libavutil/x86/x86inc.asm"