Add debug messages for AP headers

Originally committed as revision 7695 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/vc1.c

@@ -1275,6 +1275,16 @@ static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
     v->tfcntrflag = get_bits1(gb);
     v->finterpflag = get_bits1(gb);
     get_bits1(gb); // reserved
+
+    av_log(v->s.avctx, AV_LOG_DEBUG,
+               "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
+               "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n"
+               "TFCTRflag=%i, FINTERPflag=%i\n",
+               v->level, v->frmrtq_postproc, v->bitrtq_postproc,
+               v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace,
+               v->tfcntrflag, v->finterpflag
+               );
+
     v->psf = get_bits1(gb);
     if(v->psf) { //PsF, 6.1.13
         av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n");
@@ -1327,13 +1337,13 @@ static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
 static int decode_entry_point(AVCodecContext *avctx, GetBitContext *gb)
 {
     VC1Context *v = avctx->priv_data;
-    int i;
+    int i, blink, refdist;
 
     av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
-    get_bits1(gb); // broken link
+    blink = get_bits1(gb); // broken link
     avctx->max_b_frames = 1 - get_bits1(gb); // 'closed entry' also signalize possible B-frames
     v->panscanflag = get_bits1(gb);
-    get_bits1(gb); // refdist flag
+    refdist = get_bits1(gb); // refdist flag
     v->s.loop_filter = get_bits1(gb);
     v->fastuvmc = get_bits1(gb);
     v->extended_mv = get_bits1(gb);
@@ -1363,6 +1373,13 @@ static int decode_entry_point(AVCodecContext *avctx, GetBitContext *gb)
         skip_bits(gb, 3); // UV range, ignored for now
     }
 
+    av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n"
+        "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n"
+        "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n"
+        "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
+        blink, 1 - avctx->max_b_frames, v->panscanflag, refdist, v->s.loop_filter,
+        v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
+
     return 0;
 }