add patch from mpv-player/mpv#6047

packages/mpv/pulse-buffer.patch

@@ -0,0 +1,20 @@
+diff --git a/audio/format.c b/audio/format.c
+index 8a13698..982b9af 100644
+--- a/audio/format.c
++++ b/audio/format.c
+@@ -137,12 +137,9 @@ 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_fmt_to_bytes(format);
+-    int framelen = channels * bps;
+-    int bytes    = seconds  * bps * samplerate;
+-    if (bytes % framelen)
+-        bytes += framelen - (bytes % framelen);
+-    return bytes;
++    // fix --pulse-buffer
++    // https://github.com/termux/termux-packages/pull/2707#issuecomment-410841566
++    return samplerate * seconds * af_fmt_to_bytes(format) * channels;
+ }
+ 
+ void af_fill_silence(void *dst, size_t bytes, int format)