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ffplay: simplify picture allocation

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This also makes sure the aspect ratio of the picture is set before allocating
the picture, this way video_open can calculate with the correct aspect ratio
even for the first frame.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2012-09-01 17:10:35 +02:00
parent 255c7bb183
commit 99b01e458c
1 changed files with 13 additions and 22 deletions
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35
ffplay.c
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@ -241,11 +241,6 @@ typedef struct VideoState {
SDL_cond *continue_read_thread;
} VideoState;
typedef struct AllocEventProps {
VideoState *is;
AVFrame *frame;
} AllocEventProps;
/* options specified by the user */
static AVInputFormat *file_iformat;
static const char *input_filename;
@ -1328,10 +1323,8 @@ display:
/* allocate a picture (needs to do that in main thread to avoid
potential locking problems */
static void alloc_picture(AllocEventProps *event_props)
static void alloc_picture(VideoState *is)
{
VideoState *is = event_props->is;
AVFrame *frame = event_props->frame;
VideoPicture *vp;
vp = &is->pictq[is->pictq_windex];
@ -1343,10 +1336,7 @@ static void alloc_picture(AllocEventProps *event_props)
avfilter_unref_bufferp(&vp->picref);
#endif
vp->width = frame->width;
vp->height = frame->height;
video_open(event_props->is, 0);
video_open(is, 0);
vp->bmp = SDL_CreateYUVOverlay(vp->width, vp->height,
SDL_YV12_OVERLAY,
@ -1406,24 +1396,27 @@ static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_
vp = &is->pictq[is->pictq_windex];
#if CONFIG_AVFILTER
vp->sample_aspect_ratio = ((AVFilterBufferRef *)src_frame->opaque)->video->sample_aspect_ratio;
#else
vp->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, src_frame);
#endif
/* alloc or resize hardware picture buffer */
if (!vp->bmp || vp->reallocate ||
if (!vp->bmp || vp->reallocate || !vp->allocated ||
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;
vp->width = src_frame->width;
vp->height = src_frame->height;
/* the allocation must be done in the main thread to avoid
locking problems. We wait in this block for the event to complete,
so we can pass a pointer to event_props to it. */
locking problems. */
event.type = FF_ALLOC_EVENT;
event.user.data1 = &event_props;
event.user.data1 = is;
SDL_PushEvent(&event);
/* wait until the picture is allocated */
@ -1466,7 +1459,6 @@ static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_
// FIXME use direct rendering
av_picture_copy(&pict, (AVPicture *)src_frame,
src_frame->format, 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,
@ -1478,7 +1470,6 @@ 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);