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-rw-r--r--audio/format.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/audio/format.c b/audio/format.c
index 448b670671..d0cd04cb88 100644
--- a/audio/format.c
+++ b/audio/format.c
@@ -23,7 +23,9 @@
#include <string.h>
#include <inttypes.h>
#include <limits.h>
+#include <assert.h>
+#include "mpvcore/mp_common.h"
#include "audio/filter/af.h"
int af_fmt2bits(int format)
@@ -62,6 +64,46 @@ int af_fmt_change_bits(int format, int bits)
return af_fmt_is_valid(format) ? format : 0;
}
+static const int planar_formats[][2] = {
+ {AF_FORMAT_U8P, AF_FORMAT_U8},
+ {AF_FORMAT_S16P, AF_FORMAT_S16},
+ {AF_FORMAT_S32P, AF_FORMAT_S32},
+ {AF_FORMAT_FLOATP, AF_FORMAT_FLOAT},
+ {AF_FORMAT_DOUBLEP, AF_FORMAT_DOUBLE},
+};
+
+// Return the planar format corresponding to the given format.
+// If the format is already planar, return it.
+// Return 0 if there's no equivalent.
+int af_fmt_to_planar(int format)
+{
+ for (int n = 0; n < MP_ARRAY_SIZE(planar_formats); n++) {
+ if (planar_formats[n][1] == format)
+ return planar_formats[n][0];
+ if (planar_formats[n][0] == format)
+ return format;
+ }
+ return 0;
+}
+
+// Return the interleaved format corresponding to the given format.
+// If the format is already interleaved, return it.
+// Always succeeds if format is actually planar; otherwise return 0.
+int af_fmt_from_planar(int format)
+{
+ for (int n = 0; n < MP_ARRAY_SIZE(planar_formats); n++) {
+ if (planar_formats[n][0] == format)
+ return planar_formats[n][1];
+ }
+ return format;
+}
+
+// false for interleaved and AF_FORMAT_UNKNOWN
+bool af_fmt_is_planar(int format)
+{
+ return !!(format & AF_FORMAT_PLANAR);
+}
+
#define FMT(string, id) \
{string, id},
@@ -87,6 +129,12 @@ const struct af_fmt_entry af_fmtstr_table[] = {
FMT_ENDIAN("float", AF_FORMAT_FLOAT)
FMT_ENDIAN("double", AF_FORMAT_DOUBLE)
+ FMT("u8p", AF_FORMAT_U8P)
+ FMT("s16p", AF_FORMAT_S16P)
+ FMT("s32p", AF_FORMAT_S32P)
+ FMT("floatp", AF_FORMAT_FLOATP)
+ FMT("doublep", AF_FORMAT_DOUBLEP)
+
{0}
};
@@ -111,6 +159,7 @@ const char *af_fmt_to_str(int format)
int af_fmt_seconds_to_bytes(int format, float seconds, int channels, int samplerate)
{
+ assert(!af_fmt_is_planar(format));
int bps = (af_fmt2bits(format) / 8);
int framelen = channels * bps;
int bytes = seconds * bps * samplerate;