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https://github.com/FFmpeg/FFmpeg.git
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vf_fade: support slice threading
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parent
cb79881b49
commit
8a994b7406
@ -92,39 +92,70 @@ static int config_props(AVFilterLink *inlink)
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return 0;
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
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static int filter_slice_luma(AVFilterContext *ctx, void *arg, int jobnr,
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int nb_jobs)
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{
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FadeContext *s = inlink->dst->priv;
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uint8_t *p;
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FadeContext *s = ctx->priv;
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AVFrame *frame = arg;
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int slice_h = frame->height / nb_jobs;
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int slice_start = jobnr * slice_h;
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int slice_end = (jobnr == nb_jobs - 1) ? frame->height : (jobnr + 1) * slice_h;
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int i, j;
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for (i = slice_start; i < slice_end; i++) {
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uint8_t *p = frame->data[0] + i * frame->linesize[0];
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for (j = 0; j < frame->width * s->bpp; j++) {
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/* s->factor is using 16 lower-order bits for decimal
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* places. 32768 = 1 << 15, it is an integer representation
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* of 0.5 and is for rounding. */
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*p = (*p * s->factor + 32768) >> 16;
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p++;
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}
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}
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return 0;
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}
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static int filter_slice_chroma(AVFilterContext *ctx, void *arg, int jobnr,
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int nb_jobs)
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{
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FadeContext *s = ctx->priv;
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AVFrame *frame = arg;
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int slice_h = FFALIGN(frame->height / nb_jobs, 1 << s->vsub);
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int slice_start = jobnr * slice_h;
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int slice_end = (jobnr == nb_jobs - 1) ? frame->height : (jobnr + 1) * slice_h;
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int i, j, plane;
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if (s->factor < UINT16_MAX) {
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/* luma or rgb plane */
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for (i = 0; i < frame->height; i++) {
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p = frame->data[0] + i * frame->linesize[0];
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for (j = 0; j < inlink->w * s->bpp; j++) {
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/* s->factor is using 16 lower-order bits for decimal
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* places. 32768 = 1 << 15, it is an integer representation
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* of 0.5 and is for rounding. */
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*p = (*p * s->factor + 32768) >> 16;
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for (plane = 1; plane < 3; plane++) {
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for (i = slice_start; i < slice_end; i++) {
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uint8_t *p = frame->data[plane] + (i >> s->vsub) * frame->linesize[plane];
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for (j = 0; j < frame->width >> s->hsub; j++) {
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/* 8421367 = ((128 << 1) + 1) << 15. It is an integer
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* representation of 128.5. The .5 is for rounding
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* purposes. */
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*p = ((*p - 128) * s->factor + 8421367) >> 16;
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p++;
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}
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}
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}
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return 0;
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
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{
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AVFilterContext *ctx = inlink->dst;
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FadeContext *s = ctx->priv;
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if (s->factor < UINT16_MAX) {
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/* luma or rgb plane */
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ctx->internal->execute(ctx, filter_slice_luma, frame, NULL,
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FFMIN(frame->height, ctx->graph->nb_threads));
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if (frame->data[1] && frame->data[2]) {
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/* chroma planes */
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for (plane = 1; plane < 3; plane++) {
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for (i = 0; i < frame->height; i++) {
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p = frame->data[plane] + (i >> s->vsub) * frame->linesize[plane];
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for (j = 0; j < inlink->w >> s->hsub; j++) {
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/* 8421367 = ((128 << 1) + 1) << 15. It is an integer
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* representation of 128.5. The .5 is for rounding
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* purposes. */
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*p = ((*p - 128) * s->factor + 8421367) >> 16;
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p++;
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}
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}
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}
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ctx->internal->execute(ctx, filter_slice_chroma, frame, NULL,
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FFMIN(frame->height, ctx->graph->nb_threads));
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}
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}
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@ -187,4 +218,5 @@ AVFilter avfilter_vf_fade = {
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.inputs = avfilter_vf_fade_inputs,
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.outputs = avfilter_vf_fade_outputs,
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.flags = AVFILTER_FLAG_SLICE_THREADS,
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};
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