On 1/24/19, Paweł Wegner <pawel.wegne...@gmail.com> wrote:
> Signed-off-by: Paweł Wegner <pawel.wegne...@gmail.com>
> ---
> libavfilter/af_atempo.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/libavfilter/af_atempo.c b/libavfilter/af_atempo.c
> index bfdad7d76b..1245eae8c1 100644
> --- a/libavfilter/af_atempo.c
> +++ b/libavfilter/af_atempo.c
> @@ -147,6 +147,8 @@ typedef struct ATempoContext {
> uint8_t *dst_end;
> uint64_t nsamples_in;
> uint64_t nsamples_out;
> +
> + int64_t first_frame_pts;
> } ATempoContext;
>
> #define YAE_ATEMPO_MIN 0.5
> @@ -994,6 +996,7 @@ static av_cold int init(AVFilterContext *ctx)
> ATempoContext *atempo = ctx->priv;
> atempo->format = AV_SAMPLE_FMT_NONE;
> atempo->state = YAE_LOAD_FRAGMENT;
> + atempo->first_frame_pts = AV_NOPTS_VALUE;
> return 0;
> }
>
> @@ -1069,6 +1072,7 @@ static int push_samples(ATempoContext *atempo,
>
> // adjust the PTS:
> atempo->dst_buffer->pts =
> + (atempo->first_frame_pts == AV_NOPTS_VALUE ? 0 :
> atempo->first_frame_pts / atempo->tempo) +
> av_rescale_q(atempo->nsamples_out,
> (AVRational){ 1, outlink->sample_rate },
> outlink->time_base);
> @@ -1108,6 +1112,11 @@ static int filter_frame(AVFilterLink *inlink, AVFrame
> *src_buffer)
>
> atempo->dst = atempo->dst_buffer->data[0];
> atempo->dst_end = atempo->dst + n_out * atempo->stride;
> +
> + if (atempo->first_frame_pts == AV_NOPTS_VALUE)
> + atempo->first_frame_pts =
> av_rescale_q(atempo->dst_buffer->pts,
> + inlink->time_base,
> + outlink->time_base);
> }
>
> yae_apply(atempo, &src, src_end, &atempo->dst, atempo->dst_end);
> --
> 2.17.1
>
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
lgtm
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