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authorPaul B Mahol <onemda@gmail.com>2021-08-25 13:08:10 +0200
committerPaul B Mahol <onemda@gmail.com>2021-11-18 12:54:17 +0100
commite5367b481b5232182a4851dbd7fc5a7a5bd475de (patch)
tree60641b4ff9adf45fadf4dccd2704402492a7f2f3 /fftools
parent85a6b7f7b746a7bf71146b1530f19f699c4f0fb4 (diff)
downloadffmpeg-e5367b481b5232182a4851dbd7fc5a7a5bd475de.tar.gz
ffmpeg: fix loosing gaps between audio frame timestamps when filtering
Diffstat (limited to 'fftools')
-rw-r--r--fftools/ffmpeg.c5
-rw-r--r--fftools/ffmpeg.h1
-rw-r--r--fftools/ffmpeg_opt.c1
3 files changed, 7 insertions, 0 deletions
diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 7b2dcee838..b1d2c69fa7 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -2382,6 +2382,11 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output,
decoded_frame->pts = ist->dts;
decoded_frame_tb = AV_TIME_BASE_Q;
}
+ if (pkt && pkt->duration && ist->prev_pkt_pts != AV_NOPTS_VALUE &&
+ pkt->pts != AV_NOPTS_VALUE && pkt->pts - ist->prev_pkt_pts > pkt->duration)
+ ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
+ if (pkt)
+ ist->prev_pkt_pts = pkt->pts;
if (decoded_frame->pts != AV_NOPTS_VALUE)
decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
(AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index 30225e9ffe..545ff1c8e7 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -314,6 +314,7 @@ typedef struct InputStream {
AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
AVPacket *pkt;
+ int64_t prev_pkt_pts;
int64_t start; /* time when read started */
/* predicted dts of the next packet read for this stream or (when there are
* several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
diff --git a/fftools/ffmpeg_opt.c b/fftools/ffmpeg_opt.c
index 4685cf6435..ce8bae0775 100644
--- a/fftools/ffmpeg_opt.c
+++ b/fftools/ffmpeg_opt.c
@@ -875,6 +875,7 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
}
ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
+ ist->prev_pkt_pts = AV_NOPTS_VALUE;
ist->dec_ctx = avcodec_alloc_context3(ist->dec);
if (!ist->dec_ctx) {