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From 70deb2f2c99677e91b8a404882d9bb0db1791efa Mon Sep 17 00:00:00 2001
From: John Stebbins <stebbins@jetheaddev.com>
Date: Tue, 21 Feb 2017 10:46:02 -0700
Subject: [PATCH] mov: extract audio initial_padding from edit list
---
libavformat/mov.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 1657647..a080216 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -3806,13 +3806,24 @@ static int mov_read_header(AVFormatContext *s)
MOVStreamContext *sc = st->priv_data;
switch (st->codecpar->codec_type) {
- case AVMEDIA_TYPE_AUDIO:
+ case AVMEDIA_TYPE_AUDIO: {
+ int64_t skip_samples;
err = ff_replaygain_export(st, s->metadata);
if (err < 0) {
mov_read_close(s);
return err;
}
+ skip_samples = av_rescale(sc->time_offset_skip,
+ st->codecpar->sample_rate,
+ sc->time_scale);
+ /* If the number of skipped samples specified in the edit list
+ * is in a range that looks like an initial_padding, set
+ * initial_padding to tell decoders to drop the samples */
+ if (skip_samples > 0 && skip_samples <= 3840) {
+ st->codecpar->initial_padding = skip_samples;
+ }
break;
+ }
case AVMEDIA_TYPE_VIDEO:
if (sc->display_matrix) {
err = av_stream_add_side_data(st, AV_PKT_DATA_DISPLAYMATRIX,
--
2.9.3
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