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lavd/alsa: simplify reordering functions definition.

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This commit is contained in:
Nicolas George 2013-02-02 14:13:11 +01:00
parent 6726fb6533
commit 55910e1894
1 changed files with 27 additions and 46 deletions
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73
libavdevice/alsa-audio-common.c
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@ -62,48 +62,45 @@ static av_cold snd_pcm_format_t codec_id_to_pcm_format(int codec_id)
} }
} }
#define REORDER_OUT_50(NAME, TYPE) \ #define MAKE_REORDER_FUNC(NAME, TYPE, CHANNELS, LAYOUT, MAP) \
static void alsa_reorder_ ## NAME ## _out_50(const void *in_v, void *out_v, int n) \ static void alsa_reorder_ ## NAME ## _ ## LAYOUT(const void *in_v, \
{ \ void *out_v, \
const TYPE *in = in_v; \ int n) \
TYPE *out = out_v; \ { \
\ const TYPE *in = in_v; \
while (n-- > 0) { \ TYPE *out = out_v; \
\
while (n-- > 0) { \
MAP \
in += CHANNELS; \
out += CHANNELS; \
} \
}
#define MAKE_REORDER_FUNCS(CHANNELS, LAYOUT, MAP) \
MAKE_REORDER_FUNC(int8, int8_t, CHANNELS, LAYOUT, MAP) \
MAKE_REORDER_FUNC(int16, int16_t, CHANNELS, LAYOUT, MAP) \
MAKE_REORDER_FUNC(int32, int32_t, CHANNELS, LAYOUT, MAP) \
MAKE_REORDER_FUNC(f32, float, CHANNELS, LAYOUT, MAP)
MAKE_REORDER_FUNCS(5, out_50, \
out[0] = in[0]; \ out[0] = in[0]; \
out[1] = in[1]; \ out[1] = in[1]; \
out[2] = in[3]; \ out[2] = in[3]; \
out[3] = in[4]; \ out[3] = in[4]; \
out[4] = in[2]; \ out[4] = in[2]; \
in += 5; \ );
out += 5; \
} \
}
#define REORDER_OUT_51(NAME, TYPE) \ MAKE_REORDER_FUNCS(6, out_51, \
static void alsa_reorder_ ## NAME ## _out_51(const void *in_v, void *out_v, int n) \
{ \
const TYPE *in = in_v; \
TYPE *out = out_v; \
\
while (n-- > 0) { \
out[0] = in[0]; \ out[0] = in[0]; \
out[1] = in[1]; \ out[1] = in[1]; \
out[2] = in[4]; \ out[2] = in[4]; \
out[3] = in[5]; \ out[3] = in[5]; \
out[4] = in[2]; \ out[4] = in[2]; \
out[5] = in[3]; \ out[5] = in[3]; \
in += 6; \ );
out += 6; \
} \
}
#define REORDER_OUT_71(NAME, TYPE) \ MAKE_REORDER_FUNCS(8, out_71, \
static void alsa_reorder_ ## NAME ## _out_71(const void *in_v, void *out_v, int n) \
{ \
const TYPE *in = in_v; \
TYPE *out = out_v; \
\
while (n-- > 0) { \
out[0] = in[0]; \ out[0] = in[0]; \
out[1] = in[1]; \ out[1] = in[1]; \
out[2] = in[4]; \ out[2] = in[4]; \
@ -112,23 +109,7 @@ static void alsa_reorder_ ## NAME ## _out_71(const void *in_v, void *out_v, int
out[5] = in[3]; \ out[5] = in[3]; \
out[6] = in[6]; \ out[6] = in[6]; \
out[7] = in[7]; \ out[7] = in[7]; \
in += 8; \ );
out += 8; \
} \
}
REORDER_OUT_50(int8, int8_t)
REORDER_OUT_51(int8, int8_t)
REORDER_OUT_71(int8, int8_t)
REORDER_OUT_50(int16, int16_t)
REORDER_OUT_51(int16, int16_t)
REORDER_OUT_71(int16, int16_t)
REORDER_OUT_50(int32, int32_t)
REORDER_OUT_51(int32, int32_t)
REORDER_OUT_71(int32, int32_t)
REORDER_OUT_50(f32, float)
REORDER_OUT_51(f32, float)
REORDER_OUT_71(f32, float)
#define FORMAT_I8 0 #define FORMAT_I8 0
#define FORMAT_I16 1 #define FORMAT_I16 1