set AVCodecContext.width/height to the picture width/height instead of the one...

set AVCodecContext.width/height to the picture width/height instead of the one stored in the bitstream (that only matters if lowres!=0)

Originally committed as revision 3518 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/avcodec.h

@@ -17,7 +17,7 @@ extern "C" {
 
 #define FFMPEG_VERSION_INT     0x000409
 #define FFMPEG_VERSION         "0.4.9-pre1"
-#define LIBAVCODEC_BUILD       4723
+#define LIBAVCODEC_BUILD       4724
 
 #define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
 #define LIBAVCODEC_VERSION     FFMPEG_VERSION

libavcodec/h261.c

@@ -118,8 +118,8 @@ static int h261_decode_init(AVCodecContext *avctx){
     MPV_decode_defaults(s);
     s->avctx = avctx;
 
-    s->width = s->avctx->width;
-    s->height = s->avctx->height;
+    s->width  = s->avctx->width  >> avctx->lowres;
+    s->height = s->avctx->height >> avctx->lowres;
     s->codec_id = s->avctx->codec->id;
 
     s->out_format = FMT_H261;
@@ -715,15 +715,15 @@ retry:
         return -1;
     }
 
-    if (s->width != avctx->width || s->height != avctx->height){
+    if (s->width >> avctx->lowres != avctx->width || s->height >> avctx->lowres != avctx->height){
         ParseContext pc= s->parse_context; //FIXME move these demuxng hack to avformat
         s->parse_context.buffer=0;
         MPV_common_end(s);
         s->parse_context= pc;
     }
     if (!s->context_initialized) {
-        avctx->width = s->width;
-        avctx->height = s->height;
+        avctx->width  = s->width  >> avctx->lowres;
+        avctx->height = s->height >> avctx->lowres;
 
         goto retry;
     }

libavcodec/h263dec.c

@@ -37,8 +37,10 @@ int ff_h263_decode_init(AVCodecContext *avctx)
     s->avctx = avctx;
     s->out_format = FMT_H263;
 
-    s->width = avctx->width;
+    s->width  = avctx->width;
     s->height = avctx->height;
+    avctx->width = -((-s->width )>>avctx->lowres);
+    avctx->height= -((-s->height)>>avctx->lowres);
     s->workaround_bugs= avctx->workaround_bugs;
 
     // set defaults
@@ -637,7 +639,8 @@ retry:
         /* FIXME: By the way H263 decoder is evolving it should have */
         /* an H263EncContext                                         */
     
-    if (   s->width != avctx->width || s->height != avctx->height) {
+    if (   -((-s->width )>>avctx->lowres) != avctx->width 
+        || -((-s->height)>>avctx->lowres) != avctx->height) {
         /* H.263 could change picture size any time */
         ParseContext pc= s->parse_context; //FIXME move these demuxng hack to avformat
         s->parse_context.buffer=0;
@@ -645,8 +648,8 @@ retry:
         s->parse_context= pc;
     }
     if (!s->context_initialized) {
-        avctx->width = s->width;
-        avctx->height = s->height;
+        avctx->width  = -((-s->width)>>avctx->lowres);
+        avctx->height = -((-s->height)>>avctx->lowres);
 
         goto retry;
     }

libavcodec/mjpeg.c

@@ -859,6 +859,8 @@ static int mjpeg_decode_init(AVCodecContext *avctx)
     MpegEncContext s2;
 
     s->avctx = avctx;
+    avctx->width = -((-avctx->width )) >> avctx->lowres;
+    avctx->height= -((-avctx->height)) >> avctx->lowres;
 
     /* ugly way to get the idct & scantable FIXME */
     memset(&s2, 0, sizeof(MpegEncContext));
@@ -878,7 +880,7 @@ static int mjpeg_decode_init(AVCodecContext *avctx)
 	return -1;
     s->start_code = -1;
     s->first_picture = 1;
-    s->org_height = avctx->height;
+    s->org_height = avctx->height << avctx->lowres;
     
     build_vlc(&s->vlcs[0][0], bits_dc_luminance, val_dc_luminance, 12);
     build_vlc(&s->vlcs[0][1], bits_dc_chrominance, val_dc_chrominance, 12);
@@ -1030,8 +1032,8 @@ static int mjpeg_decode_sof(MJpegDecodeContext *s)
             
         s->width = width;
         s->height = height;
-        s->avctx->width = s->width;
-        s->avctx->height = s->height;
+        s->avctx->width  = -((-s->width )>>s->avctx->lowres);
+        s->avctx->height = -((-s->height)>>s->avctx->lowres);
 
         /* test interlaced mode */
         if (s->first_picture &&
@@ -2041,7 +2043,7 @@ static int sp5x_decode_frame(AVCodecContext *avctx,
     j += sizeof(sp5x_data_dht);
 
     memcpy(recoded+j, &sp5x_data_sof[0], sizeof(sp5x_data_sof));
-    recoded[j+5] = (avctx->height >> 8) & 0xFF;
+    recoded[j+5] = (avctx->height >> 8) & 0xFF; //FIXME lowres
     recoded[j+6] = avctx->height & 0xFF;
     recoded[j+7] = (avctx->width >> 8) & 0xFF;
     recoded[j+8] = avctx->width & 0xFF;
@@ -2068,8 +2070,8 @@ static int sp5x_decode_frame(AVCodecContext *avctx,
 #else
     /* SOF */
     s->bits = 8;
-    s->width = avctx->width;
-    s->height = avctx->height;
+    s->width  = avctx->width << avctx->lowres;
+    s->height = avctx->height<< avctx->lowres;
     s->nb_components = 3;
     s->component_id[0] = 0;
     s->h_count[0] = 2;

libavcodec/mpeg12.c

@@ -1966,8 +1966,8 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){
 
     if (
     	(s1->mpeg_enc_ctx_allocated == 0)|| 
-        avctx->width  != s->width ||
-        avctx->height != s->height||
+        avctx->width  != -((-s->width )>>avctx->lowres) ||
+        avctx->height != -((-s->height)>>avctx->lowres) ||
 //      s1->save_aspect_info != avctx->aspect_ratio_info||
         0)
     {
@@ -1979,8 +1979,8 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){
 	if( (s->width == 0 )||(s->height == 0))
 	    return -2;
 
-        avctx->width = s->width;
-        avctx->height = s->height;
+        avctx->width  = -((-s->width )>>avctx->lowres);
+        avctx->height = -((-s->height)>>avctx->lowres);
         avctx->bit_rate = s->bit_rate;
         s1->save_aspect_info = s->aspect_ratio_info;
 

libavcodec/mpegvideo.c

@@ -1720,11 +1720,13 @@ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict){
         uint8_t *ptr;
         int i;
         int h_chroma_shift, v_chroma_shift;
+        const int width = s->avctx->width;
+        const int height= s->avctx->height;
         s->low_delay=0; //needed to see the vectors without trashing the buffers
 
         avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
         for(i=0; i<3; i++){
-            memcpy(s->visualization_buffer[i], pict->data[i], (i==0) ? pict->linesize[i]*s->height:pict->linesize[i]*s->height >> v_chroma_shift);
+            memcpy(s->visualization_buffer[i], pict->data[i], (i==0) ? pict->linesize[i]*height:pict->linesize[i]*height >> v_chroma_shift);
             pict->data[i]= s->visualization_buffer[i];
         }
         pict->type= FF_BUFFER_TYPE_COPY;
@@ -1764,7 +1766,7 @@ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict){
                         int xy= mb_x*2 + (i&1) + (mb_y*2 + (i>>1))*s->b8_stride;
                         int mx= (pict->motion_val[direction][xy][0]>>shift) + sx;
                         int my= (pict->motion_val[direction][xy][1]>>shift) + sy;
-                        draw_arrow(ptr, sx, sy, mx, my, s->width, s->height, s->linesize, 100);
+                        draw_arrow(ptr, sx, sy, mx, my, width, height, s->linesize, 100);
                       }
                     }else if(IS_16X8(pict->mb_type[mb_index])){
                       int i;
@@ -1778,7 +1780,7 @@ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict){
                         if(IS_INTERLACED(pict->mb_type[mb_index]))
                             my*=2;
                         
-                        draw_arrow(ptr, sx, sy, mx+sx, my+sy, s->width, s->height, s->linesize, 100);
+                        draw_arrow(ptr, sx, sy, mx+sx, my+sy, width, height, s->linesize, 100);
                       }
                     }else{
                       int sx= mb_x*16 + 8;
@@ -1786,7 +1788,7 @@ void ff_print_debug_info(MpegEncContext *s, AVFrame *pict){
                       int xy= mb_x*2 + mb_y*2*s->b8_stride;
                       int mx= (pict->motion_val[direction][xy][0]>>shift) + sx;
                       int my= (pict->motion_val[direction][xy][1]>>shift) + sy;
-                      draw_arrow(ptr, sx, sy, mx, my, s->width, s->height, s->linesize, 100);
+                      draw_arrow(ptr, sx, sy, mx, my, width, height, s->linesize, 100);
                     }
                   }                  
                 }
@@ -3702,7 +3704,7 @@ void ff_draw_horiz_band(MpegEncContext *s, int y, int h){
             if(s->first_field  && !(s->avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return;
         }
 
-        h= FFMIN(h, (s->height>>s->avctx->lowres) - y);
+        h= FFMIN(h, s->avctx->height - y);
 
         if(s->pict_type==B_TYPE || s->low_delay || (s->avctx->slice_flags&SLICE_FLAG_CODED_ORDER)) 
             src= (AVFrame*)s->current_picture_ptr;