Merge remote-tracking branch 'qatar/master'

* qatar/master: (25 commits)
  Replace custom DEBUG preprocessor trickery by the standard one.
  vorbis: Remove non-compiling debug statement.
  vorbis: Remove pointless DEBUG #ifdef around debug output macros.
  cook: Remove non-compiling debug output.
  Remove pointless #ifdefs around function declarations in a header.
  Replace #ifdef + av_log() combinations by av_dlog().
  Replace custom debug output functions by av_dlog().
  cook: Remove unused debug functions.
  Remove stray extra arguments from av_dlog() invocations.
  targa: fix big-endian build
  v4l2: remove one forgotten use of AVFormatParameters.pix_fmt.
  vfwcap: add a framerate private option.
  v4l2: add a framerate private option.
  libdc1394: add a framerate private option.
  fbdev: add a framerate private option.
  bktr: add a framerate private option.
  oma: check avio_read() return value
  nutdec: remove unused variable
  Remove unused variables
  swscale: allocate larger buffer to handle altivec overreads.
  ...

Conflicts:
	ffmpeg.c
	libavcodec/dca.c
	libavcodec/dirac.c
	libavcodec/error_resilience.c
	libavcodec/h264.c
	libavcodec/mpeg12.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/pthread.c
	libavcodec/rv10.c
	libavcodec/s302m.c
	libavcodec/shorten.c
	libavcodec/truemotion2.c
	libavcodec/utils.c
	libavdevice/dv1394.c
	libavdevice/fbdev.c
	libavdevice/libdc1394.c
	libavdevice/v4l2.c
	libavformat/4xm.c
	libavformat/apetag.c
	libavformat/asfdec.c
	libavformat/avidec.c
	libavformat/mmf.c
	libavformat/mpeg.c
	libavformat/mpegenc.c
	libavformat/mpegts.c
	libavformat/oggdec.c
	libavformat/oggparseogm.c
	libavformat/rl2.c
	libavformat/rmdec.c
	libavformat/rpl.c
	libavformat/rtpdec_latm.c
	libavformat/sauce.c
	libavformat/sol.c
	libswscale/utils.c
	tests/ref/vsynth1/error
	tests/ref/vsynth2/error

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

libavcodec/mpeg12.c

@@ -1670,7 +1670,7 @@ static int mpeg_field_start(MpegEncContext *s, const uint8_t *buf, int buf_size)
 
         *s->current_picture_ptr->pan_scan= s1->pan_scan;
 
-        if (HAVE_PTHREADS && avctx->active_thread_type&FF_THREAD_FRAME)
+        if (HAVE_PTHREADS && (avctx->active_thread_type & FF_THREAD_FRAME))
             ff_thread_finish_setup(avctx);
     }else{ //second field
             int i;
@@ -2004,7 +2004,7 @@ static int slice_end(AVCodecContext *avctx, AVFrame *pict)
             *pict= *(AVFrame*)s->current_picture_ptr;
             ff_print_debug_info(s, pict);
         } else {
-            if (avctx->active_thread_type&FF_THREAD_FRAME)
+            if (avctx->active_thread_type & FF_THREAD_FRAME)
                 s->picture_number++;
             /* latency of 1 frame for I- and P-frames */
             /* XXX: use another variable than picture_number */
@@ -2179,14 +2179,13 @@ static void mpeg_decode_gop(AVCodecContext *avctx,
     Mpeg1Context *s1 = avctx->priv_data;
     MpegEncContext *s = &s1->mpeg_enc_ctx;
 
-    int drop_frame_flag;
     int time_code_hours, time_code_minutes;
     int time_code_seconds, time_code_pictures;
     int broken_link;
 
     init_get_bits(&s->gb, buf, buf_size*8);
 
-    drop_frame_flag = get_bits1(&s->gb);
+    skip_bits1(&s->gb); /* drop_frame_flag */
 
     time_code_hours=get_bits(&s->gb,5);
     time_code_minutes = get_bits(&s->gb,6);
@@ -2340,7 +2339,7 @@ static int decode_chunks(AVCodecContext *avctx,
         buf_ptr = ff_find_start_code(buf_ptr,buf_end, &start_code);
         if (start_code > 0x1ff){
             if(s2->pict_type != AV_PICTURE_TYPE_B || avctx->skip_frame <= AVDISCARD_DEFAULT){
-                if(HAVE_THREADS && avctx->active_thread_type&FF_THREAD_SLICE){
+                if(HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE)){
                     int i;
                     assert(avctx->thread_count > 1);
 
@@ -2509,7 +2508,7 @@ static int decode_chunks(AVCodecContext *avctx,
                     break;
                 }
 
-                if(HAVE_THREADS && avctx->active_thread_type&FF_THREAD_SLICE){
+                if(HAVE_THREADS && (avctx->active_thread_type & FF_THREAD_SLICE)){
                     int threshold= (s2->mb_height*s->slice_count + avctx->thread_count/2) / avctx->thread_count;
                     assert(avctx->thread_count > 1);
                     if(threshold <= mb_y){