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avfilter/setpts: switch to activate

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Also properly handle EOF timestamps.
Fixes #6833.
This commit is contained in:
Paul B Mahol 2019-09-30 13:53:59 +02:00
parent 61dd2e07be
commit 2a546fb7d5
1 changed files with 61 additions and 19 deletions
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80
libavfilter/setpts.c
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@ -33,6 +33,7 @@
#include "libavutil/time.h"
#include "audio.h"
#include "avfilter.h"
#include "filters.h"
#include "internal.h"
#include "video.h"
@ -154,6 +155,28 @@ static inline char *double2int64str(char *buf, double v)
return buf;
}
static double eval_pts(SetPTSContext *setpts, AVFilterLink *inlink, AVFrame *frame, int64_t pts)
{
if (isnan(setpts->var_values[VAR_STARTPTS])) {
setpts->var_values[VAR_STARTPTS] = TS2D(pts);
setpts->var_values[VAR_STARTT ] = TS2T(pts, inlink->time_base);
}
setpts->var_values[VAR_PTS ] = TS2D(pts);
setpts->var_values[VAR_T ] = TS2T(pts, inlink->time_base);
setpts->var_values[VAR_POS ] = !frame || frame->pkt_pos == -1 ? NAN : frame->pkt_pos;
setpts->var_values[VAR_RTCTIME ] = av_gettime();
if (frame) {
if (inlink->type == AVMEDIA_TYPE_VIDEO) {
setpts->var_values[VAR_INTERLACED] = frame->interlaced_frame;
} else if (inlink->type == AVMEDIA_TYPE_AUDIO) {
setpts->var_values[VAR_S] = frame->nb_samples;
setpts->var_values[VAR_NB_SAMPLES] = frame->nb_samples;
}
}
return av_expr_eval(setpts->expr, setpts->var_values, NULL);
}
#define d2istr(v) double2int64str((char[BUF_SIZE]){0}, v)
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
@ -162,23 +185,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
int64_t in_pts = frame->pts;
double d;
if (isnan(setpts->var_values[VAR_STARTPTS])) {
setpts->var_values[VAR_STARTPTS] = TS2D(frame->pts);
setpts->var_values[VAR_STARTT ] = TS2T(frame->pts, inlink->time_base);
}
setpts->var_values[VAR_PTS ] = TS2D(frame->pts);
setpts->var_values[VAR_T ] = TS2T(frame->pts, inlink->time_base);
setpts->var_values[VAR_POS ] = frame->pkt_pos == -1 ? NAN : frame->pkt_pos;
setpts->var_values[VAR_RTCTIME ] = av_gettime();
if (inlink->type == AVMEDIA_TYPE_VIDEO) {
setpts->var_values[VAR_INTERLACED] = frame->interlaced_frame;
} else if (inlink->type == AVMEDIA_TYPE_AUDIO) {
setpts->var_values[VAR_S] = frame->nb_samples;
setpts->var_values[VAR_NB_SAMPLES] = frame->nb_samples;
}
d = av_expr_eval(setpts->expr, setpts->var_values, NULL);
d = eval_pts(setpts, inlink, frame, frame->pts);
frame->pts = D2TS(d);
av_log(inlink->dst, AV_LOG_TRACE,
@ -216,6 +223,41 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
return ff_filter_frame(inlink->dst->outputs[0], frame);
}
static int activate(AVFilterContext *ctx)
{
SetPTSContext *setpts = ctx->priv;
AVFilterLink *inlink = ctx->inputs[0];
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *in;
int status;
int64_t pts;
int ret;
FF_FILTER_FORWARD_STATUS_BACK(outlink, inlink);
ret = ff_inlink_consume_frame(inlink, &in);
if (ret < 0)
return ret;
if (ret > 0)
return filter_frame(inlink, in);
if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
double d = eval_pts(setpts, inlink, NULL, pts);
av_log(ctx, AV_LOG_TRACE, "N:EOF PTS:%s T:%f POS:%s -> PTS:%s T:%f\n",
d2istr(setpts->var_values[VAR_PTS]),
setpts->var_values[VAR_T],
d2istr(setpts->var_values[VAR_POS]),
d2istr(d), TS2T(d, inlink->time_base));
ff_outlink_set_status(outlink, status, D2TS(d));
return 0;
}
FF_FILTER_FORWARD_WANTED(outlink, inlink);
return FFERROR_NOT_READY;
}
static av_cold void uninit(AVFilterContext *ctx)
{
SetPTSContext *setpts = ctx->priv;
@ -239,7 +281,6 @@ static const AVFilterPad avfilter_vf_setpts_inputs[] = {
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
};
@ -256,6 +297,7 @@ AVFilter ff_vf_setpts = {
.name = "setpts",
.description = NULL_IF_CONFIG_SMALL("Set PTS for the output video frame."),
.init = init,
.activate = activate,
.uninit = uninit,
.priv_size = sizeof(SetPTSContext),
@ -276,7 +318,6 @@ static const AVFilterPad asetpts_inputs[] = {
.name = "default",
.type = AVMEDIA_TYPE_AUDIO,
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
};
@ -293,6 +334,7 @@ AVFilter ff_af_asetpts = {
.name = "asetpts",
.description = NULL_IF_CONFIG_SMALL("Set PTS for the output audio frame."),
.init = init,
.activate = activate,
.uninit = uninit,
.priv_size = sizeof(SetPTSContext),
.priv_class = &asetpts_class,