Signed-off-by: Paul B Mahol <one...@gmail.com> --- Makes ffplay display correct timestamps when seeking. --- libavfilter/af_atempo.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/libavfilter/af_atempo.c b/libavfilter/af_atempo.c index bfdad7d76b..6a23d59641 100644 --- a/libavfilter/af_atempo.c +++ b/libavfilter/af_atempo.c @@ -103,6 +103,9 @@ typedef struct ATempoContext { // 1: output sample position int64_t position[2]; + // first input timestamp, all other timestamps are offset by this one + int64_t start_pts; + // sample format: enum AVSampleFormat format; @@ -1055,6 +1058,7 @@ static int config_props(AVFilterLink *inlink) enum AVSampleFormat format = inlink->format; int sample_rate = (int)inlink->sample_rate; + atempo->start_pts = AV_NOPTS_VALUE; return yae_reset(atempo, format, sample_rate, inlink->channels); } @@ -1068,7 +1072,7 @@ static int push_samples(ATempoContext *atempo, atempo->dst_buffer->nb_samples = n_out; // adjust the PTS: - atempo->dst_buffer->pts = + atempo->dst_buffer->pts = atempo->start_pts + av_rescale_q(atempo->nsamples_out, (AVRational){ 1, outlink->sample_rate }, outlink->time_base); @@ -1097,6 +1101,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *src_buffer) const uint8_t *src = src_buffer->data[0]; const uint8_t *src_end = src + n_in * atempo->stride; + if (atempo->start_pts == AV_NOPTS_VALUE) + atempo->start_pts = src_buffer->pts; while (src < src_end) { if (!atempo->dst_buffer) { atempo->dst_buffer = ff_get_audio_buffer(outlink, n_out); -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".