Mediates between old-style (de)muxers and new-style callers. Will be
removed once all the (de)muxers are converted to the new API.
---
libavformat/mux.c | 10 ++++++++++
libavformat/utils.c | 12 ++++++++++++
2 files changed, 22 insertions(+)
diff --git a/libavformat/mux.c b/libavformat/mux.c
index 411cca3fb2..ae1f26c3da 100644
--- a/libavformat/mux.c
+++ b/libavformat/mux.c
@@ -323,6 +323,16 @@ FF_ENABLE_DEPRECATION_WARNINGS
ret = AVERROR(EINVAL);
goto fail;
}
+
+ /* if the new-style channel layout is set, convert it to old one
+ * for old-style muxers */
+ if (par->ch_layout.nb_channels &&
+ !par->channels) {
+ par->channels = par->ch_layout.nb_channels;
+ par->channel_layout = par->ch_layout.order ==
AV_CHANNEL_ORDER_NATIVE ?
+ par->ch_layout.u.mask : 0;
+ }
+
if (!par->block_align)
par->block_align = par->channels *
av_get_bits_per_sample(par->codec_id) >> 3;
diff --git a/libavformat/utils.c b/libavformat/utils.c
index b6b5f0f308..13eadbbfd0 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -516,6 +516,18 @@ static int update_stream_avctx(AVFormatContext *s)
st->parser = NULL;
}
+ /* if the demuxer exports old channel layouts, convert it to new */
+ if (!st->codecpar->ch_layout.nb_channels &&
+ st->codecpar->channels) {
+ if (st->codecpar->channel_layout) {
+ av_channel_layout_from_mask(&st->codecpar->ch_layout,
+ st->codecpar->channel_layout);
+ } else {
+ st->codecpar->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
+ st->codecpar->ch_layout.nb_channels = st->codecpar->channels;
+ }
+ }
+
/* update internal codec context, for the parser */
ret = avcodec_parameters_to_context(st->internal->avctx, st->codecpar);
if (ret < 0)
--
2.24.0
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