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Template alsa reordering functions.

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This commit is contained in:
Carl Eugen Hoyos 2011-04-05 10:15:03 +02:00
parent 9c09dead87
commit efec2d7b35
1 changed files with 37 additions and 32 deletions
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69
libavdevice/alsa-audio-common.c
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@ -43,41 +43,46 @@ static av_cold snd_pcm_format_t codec_id_to_pcm_format(int codec_id)
}
}
static void alsa_reorder_s16_out_51(const void *in_v, void *out_v, int n)
{
const int16_t *in = in_v;
int16_t *out = out_v;
while (n-- > 0) {
out[0] = in[0];
out[1] = in[1];
out[2] = in[4];
out[3] = in[5];
out[4] = in[2];
out[5] = in[3];
in += 6;
out += 6;
}
#define REORDER_OUT_51(NAME, TYPE) \
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[1] = in[1]; \
out[2] = in[4]; \
out[3] = in[5]; \
out[4] = in[2]; \
out[5] = in[3]; \
in += 6; \
out += 6; \
} \
}
static void alsa_reorder_s16_out_71(const void *in_v, void *out_v, int n)
{
const int16_t *in = in_v;
int16_t *out = out_v;
#define REORDER_OUT_71(NAME, TYPE) \
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[1] = in[1]; \
out[2] = in[4]; \
out[3] = in[5]; \
out[4] = in[2]; \
out[5] = in[3]; \
out[6] = in[6]; \
out[7] = in[7]; \
in += 8; \
out += 8; \
} \
}
while (n-- > 0) {
out[0] = in[0];
out[1] = in[1];
out[2] = in[4];
out[3] = in[5];
out[4] = in[2];
out[5] = in[3];
out[6] = in[6];
out[7] = in[7];
in += 8;
out += 8;
}
}
REORDER_OUT_51(s16, int16_t)
REORDER_OUT_71(s16, int16_t)
#define REORDER_DUMMY ((void *)1)