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-rw-r--r--libavcodec/avcodec.h2
-rw-r--r--libavcodec/options.c2
-rw-r--r--libavcodec/version.h3
3 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index c6fb2efaf4..f3d255c75e 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2601,7 +2601,7 @@ typedef struct AVCodecContext {
*/
int64_t timecode_frame_start;
-#if LIBAVCODEC_VERSION_MAJOR < 53
+#if FF_API_REQUEST_CHANNELS
/**
* Decoder should decode to this many channels if it can (0 for default)
* - encoding: unused
diff --git a/libavcodec/options.c b/libavcodec/options.c
index f6010bc638..404398fed6 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -408,7 +408,9 @@ static const AVOption options[]={
{"timecode_frame_start", "GOP timecode frame start number, in non drop frame format", OFFSET(timecode_frame_start), FF_OPT_TYPE_INT64, 0, 0, INT64_MAX, V|E},
{"drop_frame_timecode", NULL, 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_DROP_FRAME_TIMECODE, INT_MIN, INT_MAX, V|E, "flags2"},
{"non_linear_q", "use non linear quantizer", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_NON_LINEAR_QUANT, INT_MIN, INT_MAX, V|E, "flags2"},
+#if FF_API_REQUEST_CHANNELS
{"request_channels", "set desired number of audio channels", OFFSET(request_channels), FF_OPT_TYPE_INT, DEFAULT, 0, INT_MAX, A|D},
+#endif
{"drc_scale", "percentage of dynamic range compression to apply", OFFSET(drc_scale), FF_OPT_TYPE_FLOAT, 1.0, 0.0, 1.0, A|D},
{"reservoir", "use bit reservoir", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_BIT_RESERVOIR, INT_MIN, INT_MAX, A|E, "flags2"},
{"mbtree", "use macroblock tree ratecontrol (x264 only)", 0, FF_OPT_TYPE_CONST, CODEC_FLAG2_MBTREE, INT_MIN, INT_MAX, V|E, "flags2"},
diff --git a/libavcodec/version.h b/libavcodec/version.h
index b93e7534bb..b60e264d7f 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -83,5 +83,8 @@
#ifndef FF_API_ANTIALIAS_ALGO
#define FF_API_ANTIALIAS_ALGO (LIBAVCODEC_VERSION_MAJOR < 54)
#endif
+#ifndef FF_API_REQUEST_CHANNELS
+#define FF_API_REQUEST_CHANNELS (LIBAVCODEC_VERSION_MAJOR < 53)
+#endif
#endif /* AVCODEC_VERSION_H */