diff options
Diffstat (limited to 'src/pcm_format.c')
| -rw-r--r-- | src/pcm_format.c | 94 |
1 files changed, 70 insertions, 24 deletions
diff --git a/src/pcm_format.c b/src/pcm_format.c index 0e686e17c..3fd76a987 100644 --- a/src/pcm_format.c +++ b/src/pcm_format.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2003-2009 The Music Player Daemon Project + * Copyright (C) 2003-2010 The Music Player Daemon Project * http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify @@ -17,11 +17,11 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ +#include "config.h" #include "pcm_format.h" #include "pcm_dither.h" #include "pcm_buffer.h" - -#include <glib.h> +#include "pcm_pack.h" static void pcm_convert_8_to_16(int16_t *out, const int8_t *in, @@ -49,16 +49,29 @@ pcm_convert_32_to_16(struct pcm_dither *dither, pcm_dither_32_to_16(dither, out, in, num_samples); } +static int32_t * +pcm_convert_24_to_24p32(struct pcm_buffer *buffer, const uint8_t *src, + unsigned num_samples) +{ + int32_t *dest = pcm_buffer_get(buffer, num_samples * 4); + pcm_unpack_24(dest, src, num_samples, false); + return dest; +} + const int16_t * pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither, - uint8_t bits, const void *src, + enum sample_format src_format, const void *src, size_t src_size, size_t *dest_size_r) { unsigned num_samples; int16_t *dest; + int32_t *dest32; + + switch (src_format) { + case SAMPLE_FORMAT_UNDEFINED: + break; - switch (bits) { - case 8: + case SAMPLE_FORMAT_S8: num_samples = src_size; *dest_size_r = src_size * sizeof(*dest); dest = pcm_buffer_get(buffer, *dest_size_r); @@ -68,11 +81,24 @@ pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither, num_samples); return dest; - case 16: + case SAMPLE_FORMAT_S16: *dest_size_r = src_size; return src; - case 24: + case SAMPLE_FORMAT_S24: + /* convert to S24_P32 first */ + num_samples = src_size / 3; + + dest32 = pcm_convert_24_to_24p32(buffer, src, num_samples); + dest = (int16_t *)dest32; + + /* convert to 16 bit in-place */ + *dest_size_r = num_samples * sizeof(*dest); + pcm_convert_24_to_16(dither, dest, dest32, + num_samples); + return dest; + + case SAMPLE_FORMAT_S24_P32: num_samples = src_size / 4; *dest_size_r = num_samples * sizeof(*dest); dest = pcm_buffer_get(buffer, *dest_size_r); @@ -82,7 +108,7 @@ pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither, num_samples); return dest; - case 32: + case SAMPLE_FORMAT_S32: num_samples = src_size / 4; *dest_size_r = num_samples * sizeof(*dest); dest = pcm_buffer_get(buffer, *dest_size_r); @@ -93,7 +119,6 @@ pcm_convert_to_16(struct pcm_buffer *buffer, struct pcm_dither *dither, return dest; } - g_warning("only 8 or 16 bits are supported for conversion!\n"); return NULL; } @@ -129,14 +154,17 @@ pcm_convert_32_to_24(int32_t *out, const int16_t *in, const int32_t * pcm_convert_to_24(struct pcm_buffer *buffer, - uint8_t bits, const void *src, + enum sample_format src_format, const void *src, size_t src_size, size_t *dest_size_r) { unsigned num_samples; int32_t *dest; - switch (bits) { - case 8: + switch (src_format) { + case SAMPLE_FORMAT_UNDEFINED: + break; + + case SAMPLE_FORMAT_S8: num_samples = src_size; *dest_size_r = src_size * sizeof(*dest); dest = pcm_buffer_get(buffer, *dest_size_r); @@ -145,7 +173,7 @@ pcm_convert_to_24(struct pcm_buffer *buffer, num_samples); return dest; - case 16: + case SAMPLE_FORMAT_S16: num_samples = src_size / 2; *dest_size_r = num_samples * sizeof(*dest); dest = pcm_buffer_get(buffer, *dest_size_r); @@ -154,11 +182,17 @@ pcm_convert_to_24(struct pcm_buffer *buffer, num_samples); return dest; - case 24: + case SAMPLE_FORMAT_S24: + num_samples = src_size / 3; + *dest_size_r = num_samples * sizeof(*dest); + + return pcm_convert_24_to_24p32(buffer, src, num_samples); + + case SAMPLE_FORMAT_S24_P32: *dest_size_r = src_size; return src; - case 32: + case SAMPLE_FORMAT_S32: num_samples = src_size / 4; *dest_size_r = num_samples * sizeof(*dest); dest = pcm_buffer_get(buffer, *dest_size_r); @@ -168,7 +202,6 @@ pcm_convert_to_24(struct pcm_buffer *buffer, return dest; } - g_warning("only 8 or 24 bits are supported for conversion!\n"); return NULL; } @@ -204,14 +237,17 @@ pcm_convert_24_to_32(int32_t *out, const int32_t *in, const int32_t * pcm_convert_to_32(struct pcm_buffer *buffer, - uint8_t bits, const void *src, + enum sample_format src_format, const void *src, size_t src_size, size_t *dest_size_r) { unsigned num_samples; int32_t *dest; - switch (bits) { - case 8: + switch (src_format) { + case SAMPLE_FORMAT_UNDEFINED: + break; + + case SAMPLE_FORMAT_S8: num_samples = src_size; *dest_size_r = src_size * sizeof(*dest); dest = pcm_buffer_get(buffer, *dest_size_r); @@ -220,7 +256,7 @@ pcm_convert_to_32(struct pcm_buffer *buffer, num_samples); return dest; - case 16: + case SAMPLE_FORMAT_S16: num_samples = src_size / 2; *dest_size_r = num_samples * sizeof(*dest); dest = pcm_buffer_get(buffer, *dest_size_r); @@ -229,7 +265,18 @@ pcm_convert_to_32(struct pcm_buffer *buffer, num_samples); return dest; - case 24: + case SAMPLE_FORMAT_S24: + /* convert to S24_P32 first */ + num_samples = src_size / 3; + + dest = pcm_convert_24_to_24p32(buffer, src, num_samples); + + /* convert to 32 bit in-place */ + *dest_size_r = num_samples * sizeof(*dest); + pcm_convert_24_to_32(dest, dest, num_samples); + return dest; + + case SAMPLE_FORMAT_S24_P32: num_samples = src_size / 4; *dest_size_r = num_samples * sizeof(*dest); dest = pcm_buffer_get(buffer, *dest_size_r); @@ -238,11 +285,10 @@ pcm_convert_to_32(struct pcm_buffer *buffer, num_samples); return dest; - case 32: + case SAMPLE_FORMAT_S32: *dest_size_r = src_size; return src; } - g_warning("only 8 or 32 bits are supported for conversion!\n"); return NULL; } |