Fixes for #26837: MPEG Preseek does not work for some h264 files.

- Display running job template in all sequencer modes
  It was displayed only for sequencer mode without preview.
- Fixed proxy rebuild progress indicator
  It was alsways zero because of incorrect rounding.
- Fixed timecode saving on windows (and probably some other platforms)
  It was caused by incorrect opening file for writting -- it should
  be opened in binary format "wb". This error caused incorrect
  movie duration detection on windows.
- Fixed movie resolution detection for some movies.
  In file attached to report, Blender detected resolution 1920x1088
  instead of 1920x1080. Not sure if this fix is correct or it's
  issue in FFmpeg, but it's something what mplayer using: store
  width/height before running avcodec_open().
- Fixed frame number calculation when building timecodes.
  It was rounding error caused some frames be positioned incorrect
  in several cases (that each 6th frame rendered as next frame
  from report).

release/scripts/startup/bl_ui/space_sequencer.py

@@ -60,7 +60,6 @@ class SEQUENCER_HT_header(Header):
 
             layout.separator()
             layout.operator("sequencer.refresh_all")
-            layout.template_running_jobs()
         elif st.view_type == 'SEQUENCER_PREVIEW':
             layout.separator()
             layout.operator("sequencer.refresh_all")
@@ -76,6 +75,8 @@ class SEQUENCER_HT_header(Header):
                     row.prop(ed, "overlay_frame", text="")
                     row.prop(ed, "overlay_lock", text="", icon='LOCKED')
 
+        layout.template_running_jobs()
+
 
 class SEQUENCER_MT_view_toggle(Menu):
     bl_label = "View Type"

source/blender/imbuf/intern/anim_movie.c

@@ -418,6 +418,7 @@ static int startffmpeg(struct anim * anim) {
 	int frs_num;
 	double frs_den;
 	int streamcount;
+	int width, height;
 
 #ifdef FFMPEG_SWSCALE_COLOR_SPACE_SUPPORT
 	/* The following for color space determination */
@@ -474,6 +475,9 @@ static int startffmpeg(struct anim * anim) {
 
 	pCodecCtx->workaround_bugs = 1;
 
+	width = pCodecCtx->width;
+	height = pCodecCtx->height;
+
 	if(avcodec_open(pCodecCtx, pCodec) < 0) {
 		av_close_input_file(pFormatCtx);
 		return -1;
@@ -498,8 +502,8 @@ static int startffmpeg(struct anim * anim) {
 
 	anim->params = 0;
 
-	anim->x = pCodecCtx->width;
-	anim->y = pCodecCtx->height;
+	anim->x = width;
+	anim->y = height;
 	anim->interlacing = 0;
 	anim->orientation = 0;
 	anim->framesize = anim->x * anim->y * 4;

source/blender/imbuf/intern/indexer.c

@@ -87,7 +87,7 @@ anim_index_builder * IMB_index_builder_create(const char * name)
 
 	BLI_make_existing_file(rv->temp_name);
 
-	rv->fp = fopen(rv->temp_name, "w");
+	rv->fp = fopen(rv->temp_name, "wb");
 
 	if (!rv->fp) {
 		fprintf(stderr, "Couldn't open index target: %s! "
@@ -797,7 +797,7 @@ static int index_rebuild_ffmpeg(struct anim * anim,
 
 	while(av_read_frame(iFormatCtx, &next_packet) >= 0) {
 		int frame_finished = 0;
-		float next_progress =  ((int)floor(((double) next_packet.pos) * 100 /
+		float next_progress =  (float)((int)floor(((double) next_packet.pos) * 100 /
 		                                   ((double) stream_size)+0.5)) / 100;
 
 		if (*progress != next_progress) {
@@ -840,8 +840,8 @@ static int index_rebuild_ffmpeg(struct anim * anim,
 				start_pts_set = TRUE;
 			}
 
-			frameno = (pts - start_pts) 
-				* pts_time_base * frame_rate; 
+			frameno = round((pts - start_pts) 
+				* pts_time_base * frame_rate);
 
 			/* decoding starts *always* on I-Frames,
 			   so: P-Frames won't work, even if all the