lavfi: move ff_parse_{sample_rate,channel_layout}() to audio.[ch]

That is a more appropriate place for those functions.

1 files changed, 25 insertions, 0 deletions

diff --git a/libavfilter/audio.h b/libavfilter/audio.h
index aab80baa50..881df0cf87 100644
--- a/libavfilter/audio.h
+++ b/libavfilter/audio.h
@@ -47,4 +47,29 @@ AVFrame *ff_null_get_audio_buffer(AVFilterLink *link, int nb_samples);
  */
 AVFrame *ff_get_audio_buffer(AVFilterLink *link, int nb_samples);
 
+/**
+ * Parse a sample rate.
+ *
+ * @param ret unsigned integer pointer to where the value should be written
+ * @param arg string to parse
+ * @param log_ctx log context
+ * @return >= 0 in case of success, a negative AVERROR code on error
+ */
+av_warn_unused_result
+int ff_parse_sample_rate(int *ret, const char *arg, void *log_ctx);
+
+/**
+ * Parse a channel layout or a corresponding integer representation.
+ *
+ * @param ret 64bit integer pointer to where the value should be written.
+ * @param nret integer pointer to the number of channels;
+ *             if not NULL, then unknown channel layouts are accepted
+ * @param arg string to parse
+ * @param log_ctx log context
+ * @return >= 0 in case of success, a negative AVERROR code on error
+ */
+av_warn_unused_result
+int ff_parse_channel_layout(AVChannelLayout *ret, int *nret, const char *arg,
+                            void *log_ctx);
+
 #endif /* AVFILTER_AUDIO_H */