audio: better rejection of invalid formats

This includes the case when lavc decodes audio with more than 8
channels, which our audio chain currently does not support.

the changes in ad_lavc.c are just simplifications. The code tried to
avoid overriding global parameters if it found something invalid, but
that is not needed anymore.

1 files changed, 6 insertions, 0 deletions

diff --git a/audio/audio.c b/audio/audio.c
index 02cd27d0d0..b40ef6fab3 100644
--- a/audio/audio.c
+++ b/audio/audio.c
@@ -79,6 +79,12 @@ bool mp_audio_config_equals(const struct mp_audio *a, const struct mp_audio *b)
            mp_chmap_equals(&a->channels, &b->channels);
 }
 
+bool mp_audio_config_valid(const struct mp_audio *mpa)
+{
+    return mp_chmap_is_valid(&mpa->channels) && af_fmt_is_valid(mpa->format)
+        && mpa->rate >= 1 && mpa->rate < 10000000;
+}
+
 char *mp_audio_fmt_to_str(int srate, const struct mp_chmap *chmap, int format)
 {
     char *chstr = mp_chmap_to_str(chmap);