codal_port/modaudio: Round up AudioFrame size to nearest 32.

dpgeorge · dpgeorge · commit 60bb5bf5cfd8 · 2024-01-18T16:07:54.000+11:00
Signed-off-by: Damien George &lt;damien@micropython.org&gt;
diff --git a/src/codal_port/modaudio.c b/src/codal_port/modaudio.c
@@ -343,6 +343,8 @@ STATIC mp_obj_t microbit_audio_frame_new(const mp_obj_type_t *type_in, size_t n_
         mp_raise_ValueError(MP_ERROR_TEXT("size out of bounds"));
     } else {
         size = args[ARG_duration].u_int * rate / 1000;
+        // Round up the size to the nearest AUDIO_CHUNK_SIZE.
+        size = (size + AUDIO_CHUNK_SIZE - 1) & ~(AUDIO_CHUNK_SIZE - 1);
     }
 
     return microbit_audio_frame_make_new(size, rate);

Original file line number	Diff line number	Diff line change
`@@ -343,6 +343,8 @@ STATIC mp_obj_t microbit_audio_frame_new(const mp_obj_type_t *type_in, size_t n_`
`343`	`343`	`mp_raise_ValueError(MP_ERROR_TEXT("size out of bounds"));`
`344`	`344`	`} else {`
`345`	`345`	`size = args[ARG_duration].u_int * rate / 1000;`
	`346`	`+ // Round up the size to the nearest AUDIO_CHUNK_SIZE.`
	`347`	`+ size = (size + AUDIO_CHUNK_SIZE - 1) & ~(AUDIO_CHUNK_SIZE - 1);`
`346`	`348`	`}`
`347`	`349`
`348`	`350`	`return microbit_audio_frame_make_new(size, rate);`