static bool filter_output_queued_frame(struct MPContext *mpctx)
{
struct sh_video *sh_video = mpctx->sh_video;
struct vo *video_out = mpctx->video_out;
struct mp_image *img = vf_chain_output_queued_frame(sh_video->vfilter);
if (img)
vo_queue_image(video_out, img);
talloc_free(img);
return !!img;
}
// Fill the VO buffer with a newly filtered or decoded image.
// returns VD_* code
static int video_output_image(struct MPContext *mpctx, double endpts,
bool reconfig_ok)
{
struct vf_chain *vf = mpctx->d_video->vfilter;
struct vo *vo = mpctx->video_out;
// Already enough video buffered in VO?
// (This implies vo_has_next_frame(vo, false/true) returns true.)
if (!vo_needs_new_image(vo) && vo->params)
return 1;
// Filter a new frame.
int r = video_decode_and_filter(mpctx);
if (r < 0)
return r; // error
vf_output_frame(vf, false);
if (vf->output) {
double pts = vf->output->pts;
// Always add these; they make backstepping after seeking faster.
add_frame_pts(mpctx, pts);
bool drop = false;
bool hrseek = mpctx->hrseek_active && mpctx->video_status == STATUS_SYNCING
&& !mpctx->d_video->header->attached_picture;
if (hrseek && pts < mpctx->hrseek_pts - .005)
drop = true;
if (endpts != MP_NOPTS_VALUE && pts >= endpts) {
drop = true;
r = VD_EOF;
}
if (drop) {
talloc_free(vf->output);
vf->output = NULL;
return r;
}
}
// Filter output is different from VO input?
bool need_vo_reconfig = !vo->params ||
!mp_image_params_equal(&vf->output_params, vo->params);
if (need_vo_reconfig) {
// Draining VO buffers.
if (vo_has_next_frame(vo, true))
return 0; // EOF so that caller displays remaining VO frames
// There was no decoded image yet - must not signal fake EOF.
// Likewise, if there's no filtered frame yet, don't reconfig yet.
if (!vf->output_params.imgfmt || !vf->output)
return r;
// Force draining.
if (!reconfig_ok)
return 0;
struct mp_image_params p = vf->output_params;
const struct vo_driver *info = mpctx->video_out->driver;
MP_INFO(mpctx, "VO: [%s] %dx%d => %dx%d %s\n",
info->name, p.w, p.h, p.d_w, p.d_h, vo_format_name(p.imgfmt));
MP_VERBOSE(mpctx, "VO: Description: %s\n", info->description);
int vo_r = vo_reconfig(vo, &p, 0);
if (vo_r < 0) {
vf->initialized = -1;
return VD_ERROR;
}
init_vo(mpctx);
// Display the frame queued after this immediately.
// (Neutralizes frame time calculation in update_video.)
mpctx->video_next_pts = MP_NOPTS_VALUE;
}
// Queue new frame, if there's one.
struct mp_image *img = vf_read_output_frame(vf);
if (img) {
vo_queue_image(vo, img);
return VD_PROGRESS;
}
return r; // includes the true EOF case
}
