diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/pcm_channels.c | 39 | ||||
| -rw-r--r-- | src/pcm_channels.h | 8 | ||||
| -rw-r--r-- | src/pcm_convert.c | 8 | ||||
| -rw-r--r-- | src/pcm_convert.h | 3 |
4 files changed, 30 insertions, 28 deletions
diff --git a/src/pcm_channels.c b/src/pcm_channels.c index 13fe81cb4..a63c7f2e9 100644 --- a/src/pcm_channels.c +++ b/src/pcm_channels.c @@ -17,6 +17,7 @@ */ #include "pcm_channels.h" +#include "pcm_buffer.h" #include <glib.h> @@ -72,28 +73,23 @@ pcm_convert_channels_16_n_to_2(int16_t *dest, } const int16_t * -pcm_convert_channels_16(int8_t dest_channels, +pcm_convert_channels_16(struct pcm_buffer *buffer, + int8_t dest_channels, int8_t src_channels, const int16_t *src, size_t src_size, size_t *dest_size_r) { - static int16_t *buf; - static size_t len; unsigned num_frames = src_size / src_channels / sizeof(*src); unsigned dest_size = num_frames * dest_channels * sizeof(*src); - - if (dest_size > len) { - len = dest_size; - buf = g_realloc(buf, len); - } + int16_t *dest = pcm_buffer_get(buffer, dest_size); *dest_size_r = dest_size; if (src_channels == 1 && dest_channels == 2) - pcm_convert_channels_16_1_to_2(buf, src, num_frames); + pcm_convert_channels_16_1_to_2(dest, src, num_frames); else if (src_channels == 2 && dest_channels == 1) - pcm_convert_channels_16_2_to_1(buf, src, num_frames); + pcm_convert_channels_16_2_to_1(dest, src, num_frames); else if (dest_channels == 2) - pcm_convert_channels_16_n_to_2(buf, src_channels, src, + pcm_convert_channels_16_n_to_2(dest, src_channels, src, num_frames); else { g_warning("conversion %u->%u channels is not supported", @@ -101,7 +97,7 @@ pcm_convert_channels_16(int8_t dest_channels, return NULL; } - return buf; + return dest; } static void @@ -151,28 +147,23 @@ pcm_convert_channels_24_n_to_2(int32_t *dest, } const int32_t * -pcm_convert_channels_24(int8_t dest_channels, +pcm_convert_channels_24(struct pcm_buffer *buffer, + int8_t dest_channels, int8_t src_channels, const int32_t *src, size_t src_size, size_t *dest_size_r) { - static int32_t *buf; - static size_t len; unsigned num_frames = src_size / src_channels / sizeof(*src); unsigned dest_size = num_frames * dest_channels * sizeof(*src); - - if (dest_size > len) { - len = dest_size; - buf = g_realloc(buf, len); - } + int32_t *dest = pcm_buffer_get(buffer, dest_size); *dest_size_r = dest_size; if (src_channels == 1 && dest_channels == 2) - pcm_convert_channels_24_1_to_2(buf, src, num_frames); + pcm_convert_channels_24_1_to_2(dest, src, num_frames); else if (src_channels == 2 && dest_channels == 1) - pcm_convert_channels_24_2_to_1(buf, src, num_frames); + pcm_convert_channels_24_2_to_1(dest, src, num_frames); else if (dest_channels == 2) - pcm_convert_channels_24_n_to_2(buf, src_channels, src, + pcm_convert_channels_24_n_to_2(dest, src_channels, src, num_frames); else { g_warning("conversion %u->%u channels is not supported", @@ -180,5 +171,5 @@ pcm_convert_channels_24(int8_t dest_channels, return NULL; } - return buf; + return dest; } diff --git a/src/pcm_channels.h b/src/pcm_channels.h index fa27fdb8f..b4699ed8f 100644 --- a/src/pcm_channels.h +++ b/src/pcm_channels.h @@ -22,13 +22,17 @@ #include <stdint.h> #include <stddef.h> +struct pcm_buffer; + const int16_t * -pcm_convert_channels_16(int8_t dest_channels, +pcm_convert_channels_16(struct pcm_buffer *buffer, + int8_t dest_channels, int8_t src_channels, const int16_t *src, size_t src_size, size_t *dest_size_r); const int32_t * -pcm_convert_channels_24(int8_t dest_channels, +pcm_convert_channels_24(struct pcm_buffer *buffer, + int8_t dest_channels, int8_t src_channels, const int32_t *src, size_t src_size, size_t *dest_size_r); diff --git a/src/pcm_convert.c b/src/pcm_convert.c index e0ab4ecd3..b9db24b9a 100644 --- a/src/pcm_convert.c +++ b/src/pcm_convert.c @@ -37,6 +37,7 @@ void pcm_convert_init(struct pcm_convert_state *state) pcm_dither_24_init(&state->dither); pcm_buffer_init(&state->format_buffer); + pcm_buffer_init(&state->channels_buffer); } void pcm_convert_deinit(struct pcm_convert_state *state) @@ -44,6 +45,7 @@ void pcm_convert_deinit(struct pcm_convert_state *state) pcm_resample_deinit(&state->resample); pcm_buffer_deinit(&state->format_buffer); + pcm_buffer_deinit(&state->channels_buffer); } static size_t @@ -66,7 +68,8 @@ pcm_convert_16(const struct audio_format *src_format, g_error("pcm_convert_to_16() failed"); if (src_format->channels != dest_format->channels) { - buf = pcm_convert_channels_16(dest_format->channels, + buf = pcm_convert_channels_16(&state->channels_buffer, + dest_format->channels, src_format->channels, buf, len, &len); if (!buf) @@ -106,7 +109,8 @@ pcm_convert_24(const struct audio_format *src_format, g_error("pcm_convert_to_24() failed"); if (src_format->channels != dest_format->channels) { - buf = pcm_convert_channels_24(dest_format->channels, + buf = pcm_convert_channels_24(&state->channels_buffer, + dest_format->channels, src_format->channels, buf, len, &len); if (!buf) diff --git a/src/pcm_convert.h b/src/pcm_convert.h index e48315795..46ee55407 100644 --- a/src/pcm_convert.h +++ b/src/pcm_convert.h @@ -32,6 +32,9 @@ struct pcm_convert_state { /** the buffer for converting the sample format */ struct pcm_buffer format_buffer; + + /** the buffer for converting the channel count */ + struct pcm_buffer channels_buffer; }; void pcm_convert_init(struct pcm_convert_state *state); |