Merge remote-tracking branch 'cus/stable'

* cus/stable:
  ffplay: put aspect ratio info to the VideoPicture struct
  ffplay: use AVFrame::width and height instead of using codec or filter settings
  ffplay: use stream sample_aspect_ratio if available in source frames
  ffplay: fix video_thread when no frame is returned in get_video_frame
Merged-by: Michael Niedermayer <michaelni@gmx.at>

ffplay.c

@@ -104,6 +104,7 @@ typedef struct VideoPicture {
     int skip;
     SDL_Overlay *bmp;
     int width, height; /* source height & width */
+    AVRational sample_aspect_ratio;
     int allocated;
     int reallocate;
     enum PixelFormat pix_fmt;
@@ -233,6 +234,11 @@ typedef struct VideoState {
     int refresh;
 } VideoState;
 
+typedef struct AllocEventProps {
+    VideoState *is;
+    AVFrame *frame;
+} AllocEventProps;
+
 static int opt_help(const char *opt, const char *arg);
 
 /* options specified by the user */
@@ -666,21 +672,11 @@ static void video_image_display(VideoState *is)
 
     vp = &is->pictq[is->pictq_rindex];
     if (vp->bmp) {
-#if CONFIG_AVFILTER
-         if (vp->picref->video->sample_aspect_ratio.num == 0)
-             aspect_ratio = 0;
-         else
-             aspect_ratio = av_q2d(vp->picref->video->sample_aspect_ratio);
-#else
-
-        /* XXX: use variable in the frame */
-        if (is->video_st->sample_aspect_ratio.num)
-            aspect_ratio = av_q2d(is->video_st->sample_aspect_ratio);
-        else if (is->video_st->codec->sample_aspect_ratio.num)
-            aspect_ratio = av_q2d(is->video_st->codec->sample_aspect_ratio);
-        else
+        if (vp->sample_aspect_ratio.num == 0)
             aspect_ratio = 0;
-#endif
+        else
+            aspect_ratio = av_q2d(vp->sample_aspect_ratio);
+
         if (aspect_ratio <= 0.0)
             aspect_ratio = 1.0;
         aspect_ratio *= (float)vp->width / (float)vp->height;
@@ -934,6 +930,7 @@ static int video_open(VideoState *is, int force_set_video_mode)
 {
     int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
     int w,h;
+    VideoPicture *vp = &is->pictq[is->pictq_rindex];
 
     if (is_full_screen) flags |= SDL_FULLSCREEN;
     else                flags |= SDL_RESIZABLE;
@@ -944,15 +941,9 @@ static int video_open(VideoState *is, int force_set_video_mode)
     } else if (!is_full_screen && screen_width) {
         w = screen_width;
         h = screen_height;
-#if CONFIG_AVFILTER
-    } else if (is->out_video_filter && is->out_video_filter->inputs[0]) {
-        w = is->out_video_filter->inputs[0]->w;
-        h = is->out_video_filter->inputs[0]->h;
-#else
-    } else if (is->video_st && is->video_st->codec->width) {
-        w = is->video_st->codec->width;
-        h = is->video_st->codec->height;
-#endif
+    } else if (vp->width) {
+        w = vp->width;
+        h = vp->height;
     } else {
         w = 640;
         h = 480;
@@ -1293,9 +1284,10 @@ display:
 
 /* allocate a picture (needs to do that in main thread to avoid
    potential locking problems */
-static void alloc_picture(void *opaque)
+static void alloc_picture(AllocEventProps *event_props)
 {
-    VideoState *is = opaque;
+    VideoState *is = event_props->is;
+    AVFrame *frame = event_props->frame;
     VideoPicture *vp;
 
     vp = &is->pictq[is->pictq_windex];
@@ -1307,16 +1299,14 @@ static void alloc_picture(void *opaque)
     if (vp->picref)
         avfilter_unref_buffer(vp->picref);
     vp->picref = NULL;
-
-    vp->width   = is->out_video_filter->inputs[0]->w;
-    vp->height  = is->out_video_filter->inputs[0]->h;
-    vp->pix_fmt = is->out_video_filter->inputs[0]->format;
-#else
-    vp->width   = is->video_st->codec->width;
-    vp->height  = is->video_st->codec->height;
-    vp->pix_fmt = is->video_st->codec->pix_fmt;
 #endif
 
+    vp->width   = frame->width;
+    vp->height  = frame->height;
+    vp->pix_fmt = frame->format;
+
+    video_open(event_props->is, 0);
+
     vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
                                    SDL_YV12_OVERLAY,
                                    screen);
@@ -1378,22 +1368,22 @@ static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_
 
     /* alloc or resize hardware picture buffer */
     if (!vp->bmp || vp->reallocate ||
-#if CONFIG_AVFILTER
-        vp->width  != is->out_video_filter->inputs[0]->w ||
-        vp->height != is->out_video_filter->inputs[0]->h) {
-#else
-        vp->width != is->video_st->codec->width ||
-        vp->height != is->video_st->codec->height) {
-#endif
+        vp->width  != src_frame->width ||
+        vp->height != src_frame->height) {
         SDL_Event event;
+        AllocEventProps event_props;
+
+        event_props.frame = src_frame;
+        event_props.is = is;
 
         vp->allocated  = 0;
         vp->reallocate = 0;
 
         /* the allocation must be done in the main thread to avoid
-           locking problems */
+           locking problems. We wait in this block for the event to complete,
+           so we can pass a pointer to event_props to it. */
         event.type = FF_ALLOC_EVENT;
-        event.user.data1 = is;
+        event.user.data1 = &event_props;
         SDL_PushEvent(&event);
 
         /* wait until the picture is allocated */
@@ -1437,6 +1427,7 @@ static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_
         // FIXME use direct rendering
         av_picture_copy(&pict, (AVPicture *)src_frame,
                         vp->pix_fmt, vp->width, vp->height);
+        vp->sample_aspect_ratio = vp->picref->video->sample_aspect_ratio;
 #else
         sws_flags = av_get_int(sws_opts, "sws_flags", NULL);
         is->img_convert_ctx = sws_getCachedContext(is->img_convert_ctx,
@@ -1448,6 +1439,7 @@ static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_
         }
         sws_scale(is->img_convert_ctx, src_frame->data, src_frame->linesize,
                   0, vp->height, pict.data, pict.linesize);
+        vp->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame);
 #endif
         /* update the bitmap content */
         SDL_UnlockYUVOverlay(vp->bmp);
@@ -1688,6 +1680,7 @@ static int input_request_frame(AVFilterLink *link)
     av_free_packet(&pkt);
 
     avfilter_copy_frame_props(picref, priv->frame);
+    picref->video->sample_aspect_ratio = av_guess_sample_aspect_ratio(priv->is->ic, priv->is->video_st, priv->frame);
     picref->pts = pts;
 
     avfilter_start_frame(link, picref);
@@ -1872,6 +1865,8 @@ static int video_thread(void *arg)
         ret = get_video_frame(is, frame, &pts_int, &pkt);
         pos = pkt.pos;
         av_free_packet(&pkt);
+        if (ret == 0)
+            continue;
 #endif
 
         if (ret < 0)
@@ -2969,7 +2964,6 @@ static void event_loop(VideoState *cur_stream)
             do_exit(cur_stream);
             break;
         case FF_ALLOC_EVENT:
-            video_open(event.user.data1, 0);
             alloc_picture(event.user.data1);
             break;
         case FF_REFRESH_EVENT: