Merge commit '581281e242609a222233a2e5538b89dfb88fb18e'

* commit '581281e242609a222233a2e5538b89dfb88fb18e':
  matroskadec: check realloc in lzo encoding
  matroska: honor error_recognition on unknown doctypes
  tiffdec: Add support for GRAY16LE.
  tiffenc: Add support for little endian RGB48 and GRAY16
  mpeg4: support frame parameter changes with frame-mt
  mpegvideo: check ff_find_unused_picture() return value for errors
  mpegvideo: release frame buffers before freeing them
  configure: msvc: default to 'lib' as 'ar' tool
  build: support some non-standard ar variants

Conflicts:
	libavcodec/h263dec.c
	libavcodec/mpegvideo.c
	libavcodec/tiff.c
	libavcodec/tiffenc.c

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

configure

@@ -2316,6 +2316,7 @@ case "$toolchain" in
         cc_default="c99wrap cl"
         ld_default="c99wrap link"
         nm_default="dumpbin -symbols"
+        ar_default="lib"
     ;;
     ?*)
         die "Unknown toolchain $toolchain"
@@ -2688,6 +2689,17 @@ if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
     DEPCCFLAGS=$_flags
 fi
 
+if $ar 2>&1 | grep -q Microsoft; then
+    arflags="-nologo"
+    ar_o='-out:$@'
+elif $ar 2>&1 | grep -q 'Texas Instruments'; then
+    arflags="rq"
+    ar_o='$@'
+else
+    arflags="rc"
+    ar_o='$@'
+fi
+
 add_cflags $extra_cflags
 add_cxxflags $extra_cxxflags
 add_asflags $extra_cflags
@@ -4113,6 +4125,8 @@ DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
 YASM=$yasmexe
 DEPYASM=$yasmexe
 AR=$ar
+ARFLAGS=$arflags
+AR_O=$ar_o
 RANLIB=$ranlib
 CP=cp -p
 LN_S=$ln_s

libavcodec/h263dec.c

@@ -462,15 +462,6 @@ retry:
     if (ret < 0){
         av_log(s->avctx, AV_LOG_ERROR, "header damaged\n");
         return ret;
-    } else if ((s->width  != avctx->coded_width  ||
-                s->height != avctx->coded_height ||
-                (s->width  + 15) >> 4 != s->mb_width ||
-                (s->height + 15) >> 4 != s->mb_height) &&
-               (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))) {
-        av_log_missing_feature(s->avctx, "Width/height/bit depth/chroma idc changing with threads is", 0);
-        s->width = avctx->coded_width;
-        s->height= avctx->coded_height;
-        return AVERROR_PATCHWELCOME;   // width / height changed during parallelized decoding
     }
 
     avctx->has_b_frames= !s->low_delay;
@@ -607,21 +598,29 @@ retry:
         /* FIXME: By the way H263 decoder is evolving it should have */
         /* an H263EncContext                                         */
 
-    if (   s->width  != avctx->coded_width
-        || s->height != avctx->coded_height) {
-        /* H.263 could change picture size any time */
+    if (!avctx->coded_width || !avctx->coded_height) {
         ParseContext pc= s->parse_context; //FIXME move these demuxng hack to avformat
 
         s->parse_context.buffer=0;
         ff_MPV_common_end(s);
         s->parse_context= pc;
-    }
-    if (!s->context_initialized) {
         avcodec_set_dimensions(avctx, s->width, s->height);
 
         goto retry;
     }
 
+    if (s->width  != avctx->coded_width  ||
+        s->height != avctx->coded_height ||
+        s->context_reinit) {
+        /* H.263 could change picture size any time */
+        s->context_reinit = 0;
+
+        avcodec_set_dimensions(avctx, s->width, s->height);
+
+        if ((ret = ff_MPV_common_frame_size_change(s)))
+            return ret;
+    }
+
     if((s->codec_id==AV_CODEC_ID_H263 || s->codec_id==AV_CODEC_ID_H263P || s->codec_id == AV_CODEC_ID_H263I))
         s->gob_index = ff_h263_get_gob_height(s);
 

libavcodec/mpeg4videodec.c

@@ -1630,6 +1630,9 @@ static int decode_vol_header(MpegEncContext *s, GetBitContext *gb){
             height = get_bits(gb, 13);
             skip_bits1(gb);   /* marker */
             if(width && height && !(s->width && s->codec_tag == AV_RL32("MP4S"))){ /* they should be non zero but who knows ... */
+                if (s->width && s->height &&
+                    (s->width != width || s->height != height))
+                    s->context_reinit = 1;
                 s->width = width;
                 s->height = height;
             }

libavcodec/mpegvideo.c

@@ -552,6 +552,15 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst,
         }
     }
 
+    if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
+        int err;
+        s->context_reinit = 0;
+        s->height = s1->height;
+        s->width  = s1->width;
+        if ((err = ff_MPV_common_frame_size_change(s)) < 0)
+            return err;
+    }
+
     s->avctx->coded_height  = s1->avctx->coded_height;
     s->avctx->coded_width   = s1->avctx->coded_width;
     s->avctx->width         = s1->avctx->width;
@@ -1328,8 +1337,10 @@ int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
             pic = s->current_picture_ptr;
         } else {
             i   = ff_find_unused_picture(s, 0);
-            if (i < 0)
+            if (i < 0) {
+                av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
                 return i;
+            }
             pic = &s->picture[i];
         }
 
@@ -1393,8 +1404,10 @@ int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
 
             /* Allocate a dummy frame */
             i = ff_find_unused_picture(s, 0);
-            if (i < 0)
+            if (i < 0) {
+                av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
                 return i;
+            }
             s->last_picture_ptr = &s->picture[i];
             s->last_picture_ptr->f.key_frame = 0;
             if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
@@ -1416,8 +1429,10 @@ int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
             s->pict_type == AV_PICTURE_TYPE_B) {
             /* Allocate a dummy frame */
             i = ff_find_unused_picture(s, 0);
-            if (i < 0)
+            if (i < 0) {
+                av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
                 return i;
+            }
             s->next_picture_ptr = &s->picture[i];
             s->next_picture_ptr->f.key_frame = 0;
             if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {

libavcodec/mpegvideo.h

@@ -713,6 +713,10 @@ typedef struct MpegEncContext {
 
     /* temp buffers for rate control */
     float *cplx_tab, *bits_tab;
+
+    /* flag to indicate a reinitialization is required, e.g. after
+     * a frame size change */
+    int context_reinit;
 } MpegEncContext;
 
 #define REBASE_PICTURE(pic, new_ctx, old_ctx) (pic ? \

libavcodec/tiffenc.c

@@ -520,7 +520,8 @@ AVCodec ff_tiff_encoder = {
     .encode2        = encode_frame,
     .close          = encode_close,
     .pix_fmts       = (const enum PixelFormat[]) {
-        PIX_FMT_RGB24, PIX_FMT_PAL8, PIX_FMT_GRAY8, PIX_FMT_GRAY8A, PIX_FMT_GRAY16LE,
+        PIX_FMT_RGB24, PIX_FMT_PAL8, PIX_FMT_GRAY8,
+        PIX_FMT_GRAY8A, PIX_FMT_GRAY16LE,
         PIX_FMT_MONOBLACK, PIX_FMT_MONOWHITE,
         PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV440P, PIX_FMT_YUV444P,
         PIX_FMT_YUV410P, PIX_FMT_YUV411P, PIX_FMT_RGB48LE,

libavformat/matroskadec.c

@@ -1065,7 +1065,11 @@ static int matroska_decode_buffer(uint8_t** buf, int* buf_size,
     case MATROSKA_TRACK_ENCODING_COMP_LZO:
         do {
             olen = pkt_size *= 3;
-            pkt_data = av_realloc(pkt_data, pkt_size+AV_LZO_OUTPUT_PADDING);
+            newpktdata = av_realloc(pkt_data, pkt_size + AV_LZO_OUTPUT_PADDING);
+            if (!newpktdata) {
+                goto failed;
+            }
+            pkt_data = newpktdata;
             result = av_lzo1x_decode(pkt_data, &olen, data, &isize);
         } while (result==AV_LZO_OUTPUT_FULL && pkt_size<10000000);
         if (result)
@@ -1443,6 +1447,10 @@ static int matroska_read_header(AVFormatContext *s)
             break;
     if (i >= FF_ARRAY_ELEMS(matroska_doctypes)) {
         av_log(s, AV_LOG_WARNING, "Unknown EBML doctype '%s'\n", ebml.doctype);
+        if (matroska->ctx->error_recognition & AV_EF_EXPLODE) {
+            ebml_free(ebml_syntax, &ebml);
+            return AVERROR_INVALIDDATA;
+        }
     }
     ebml_free(ebml_syntax, &ebml);
 

library.mak

@@ -25,7 +25,7 @@ $(TESTOBJS): CPPFLAGS += -DTEST
 
 $(SUBDIR)$(LIBNAME): $(OBJS)
 	$(RM) $@
-	$(AR) rc $@ $^ $(EXTRAOBJS)
+	$(AR) $(ARFLAGS) $(AR_O) $^ $(EXTRAOBJS)
 	$(RANLIB) $@
 
 install-headers: install-lib$(NAME)-headers install-lib$(NAME)-pkgconfig