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avfilter/vf_framerate: factorize blend_frames 

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2017-12-09 23:00:57 +01:00
parent 1eb926dc02
commit 090b740680
1 changed files with 7 additions and 47 deletions
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54
libavfilter/vf_framerate.c
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@ -73,8 +73,6 @@ typedef struct FrameRateContext {
int64_t srce_pts_dest[N_SRCE]; ///< pts for source frames scaled to output timebase
int64_t pts; ///< pts of frame we are working on
int (*blend_frames)(AVFilterContext *ctx, float interpolate,
AVFrame *copy_src1, AVFrame *copy_src2);
int max;
int bitdepth;
AVFrame *work;
@ -321,16 +319,16 @@ static int filter_slice16(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
return 0;
}
static int blend_frames16(AVFilterContext *ctx, float interpolate,
AVFrame *copy_src1, AVFrame *copy_src2)
static int blend_frames(AVFilterContext *ctx, float interpolate,
AVFrame *copy_src1, AVFrame *copy_src2)
{
FrameRateContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
double interpolate_scene_score = 0;
if ((s->flags & FRAMERATE_FLAG_SCD) && copy_src2) {
interpolate_scene_score = get_scene_score16(ctx, copy_src1, copy_src2);
ff_dlog(ctx, "blend_frames16() interpolate scene score:%f\n", interpolate_scene_score);
interpolate_scene_score = s->bitdepth == 8 ? get_scene_score(ctx, copy_src1, copy_src2) : get_scene_score16(ctx, copy_src1, copy_src2);
ff_dlog(ctx, "blend_frames() interpolate scene score:%f\n", interpolate_scene_score);
}
// decide if the shot-change detection allows us to blend two frames
if (interpolate_scene_score < s->scene_score && copy_src2) {
@ -347,42 +345,8 @@ static int blend_frames16(AVFilterContext *ctx, float interpolate,
av_frame_copy_props(s->work, s->srce[s->crnt]);
ff_dlog(ctx, "blend_frames16() INTERPOLATE to create work frame\n");
ctx->internal->execute(ctx, filter_slice16, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
return 1;
}
return 0;
}
static int blend_frames8(AVFilterContext *ctx, float interpolate,
AVFrame *copy_src1, AVFrame *copy_src2)
{
FrameRateContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
double interpolate_scene_score = 0;
if ((s->flags & FRAMERATE_FLAG_SCD) && copy_src2) {
interpolate_scene_score = get_scene_score(ctx, copy_src1, copy_src2);
ff_dlog(ctx, "blend_frames8() interpolate scene score:%f\n", interpolate_scene_score);
}
// decide if the shot-change detection allows us to blend two frames
if (interpolate_scene_score < s->scene_score && copy_src2) {
ThreadData td;
td.copy_src1 = copy_src1;
td.copy_src2 = copy_src2;
td.src2_factor = fabsf(interpolate);
td.src1_factor = 256 - td.src2_factor;
// get work-space for output frame
s->work = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!s->work)
return AVERROR(ENOMEM);
av_frame_copy_props(s->work, s->srce[s->crnt]);
ff_dlog(ctx, "blend_frames8() INTERPOLATE to create work frame\n");
ctx->internal->execute(ctx, filter_slice8, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
ff_dlog(ctx, "blend_frames() INTERPOLATE to create work frame\n");
ctx->internal->execute(ctx, s->bitdepth == 8 ? filter_slice8 : filter_slice16, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
return 1;
}
return 0;
@ -458,7 +422,7 @@ static int process_work_frame(AVFilterContext *ctx, int stop)
ff_dlog(ctx, "process_work_frame() interpolate source is:PREV\n");
copy_src2 = s->srce[s->prev];
}
if (s->blend_frames(ctx, interpolate, copy_src1, copy_src2))
if (blend_frames(ctx, interpolate, copy_src1, copy_src2))
goto copy_done;
else
ff_dlog(ctx, "process_work_frame() CUT - DON'T INTERPOLATE\n");
@ -622,10 +586,6 @@ static int config_input(AVFilterLink *inlink)
s->srce_time_base = inlink->time_base;
if (s->bitdepth == 8)
s->blend_frames = blend_frames8;
else
s->blend_frames = blend_frames16;
s->max = 1 << (s->bitdepth);
return 0;