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Code Issues Releases Activity

avcodec/setts_bsf: don't repeatedly set start pts and dts

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Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2022-03-16 23:58:40 -03:00
parent c5628ae347
commit 85b7be53e1
1 changed files with 6 additions and 11 deletions
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17
libavcodec/setts_bsf.c
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@ -91,9 +91,6 @@ typedef struct SetTSContext {
int64_t frame_number;
int64_t start_pts;
int64_t start_dts;
double var_values[VAR_VARS_NB];
AVExpr *ts_expr;
@ -149,8 +146,8 @@ static int setts_init(AVBSFContext *ctx)
ctx->time_base_out = s->time_base;
s->frame_number= 0;
s->start_pts = AV_NOPTS_VALUE;
s->start_dts = AV_NOPTS_VALUE;
s->var_values[VAR_STARTPTS] = AV_NOPTS_VALUE;
s->var_values[VAR_STARTDTS] = AV_NOPTS_VALUE;
s->var_values[VAR_NOPTS] = AV_NOPTS_VALUE;
s->var_values[VAR_TB] = ctx->time_base_in.den ? av_q2d(ctx->time_base_in) : 0;
s->var_values[VAR_TB_OUT]= ctx->time_base_out.den ? av_q2d(ctx->time_base_out) : 0;
@ -174,11 +171,11 @@ static int setts_filter(AVBSFContext *ctx, AVPacket *pkt)
return AVERROR(EAGAIN);
}
if (s->start_pts == AV_NOPTS_VALUE)
s->start_pts = s->cur_pkt->pts;
if (s->var_values[VAR_STARTPTS] == AV_NOPTS_VALUE)
s->var_values[VAR_STARTPTS] = s->cur_pkt->pts;
if (s->start_dts == AV_NOPTS_VALUE)
s->start_dts = s->cur_pkt->dts;
if (s->var_values[VAR_STARTDTS] == AV_NOPTS_VALUE)
s->var_values[VAR_STARTDTS] = s->cur_pkt->dts;
s->var_values[VAR_N] = s->frame_number++;
s->var_values[VAR_TS] = s->cur_pkt->dts;
@ -195,8 +192,6 @@ static int setts_filter(AVBSFContext *ctx, AVPacket *pkt)
s->var_values[VAR_NEXT_PTS] = pkt->pts;
s->var_values[VAR_NEXT_DTS] = pkt->dts;
s->var_values[VAR_NEXT_DUR] = pkt->duration;
s->var_values[VAR_STARTPTS] = s->start_pts;
s->var_values[VAR_STARTDTS] = s->start_dts;
new_ts = llrint(av_expr_eval(s->ts_expr, s->var_values, NULL));
new_duration = llrint(av_expr_eval(s->duration_expr, s->var_values, NULL));