diff options
Diffstat (limited to '')
| -rw-r--r-- | src/pcm_convert.c | 127 |
1 files changed, 95 insertions, 32 deletions
diff --git a/src/pcm_convert.c b/src/pcm_convert.c index ebb4adff5..4879dc0ab 100644 --- a/src/pcm_convert.c +++ b/src/pcm_convert.c @@ -20,6 +20,7 @@ #include "pcm_convert.h" #include "pcm_channels.h" #include "pcm_format.h" +#include "pcm_byteswap.h" #include "audio_format.h" #include <assert.h> @@ -39,6 +40,7 @@ void pcm_convert_init(struct pcm_convert_state *state) pcm_buffer_init(&state->format_buffer); pcm_buffer_init(&state->channels_buffer); + pcm_buffer_init(&state->byteswap_buffer); } void pcm_convert_deinit(struct pcm_convert_state *state) @@ -47,14 +49,15 @@ void pcm_convert_deinit(struct pcm_convert_state *state) pcm_buffer_deinit(&state->format_buffer); pcm_buffer_deinit(&state->channels_buffer); + pcm_buffer_deinit(&state->byteswap_buffer); } static const int16_t * pcm_convert_16(struct pcm_convert_state *state, const struct audio_format *src_format, const void *src_buffer, size_t src_size, - const struct audio_format *dest_format, - size_t *dest_size_r) + const struct audio_format *dest_format, size_t *dest_size_r, + GError **error_r) { const int16_t *buf; size_t len; @@ -64,24 +67,42 @@ pcm_convert_16(struct pcm_convert_state *state, buf = pcm_convert_to_16(&state->format_buffer, &state->dither, src_format->bits, src_buffer, src_size, &len); - if (!buf) - g_error("pcm_convert_to_16() failed"); + if (buf == NULL) { + g_set_error(error_r, pcm_convert_quark(), 0, + "Conversion from %u to 16 bit is not implemented", + src_format->bits); + return NULL; + } if (src_format->channels != dest_format->channels) { buf = pcm_convert_channels_16(&state->channels_buffer, dest_format->channels, src_format->channels, buf, len, &len); - if (!buf) - g_error("pcm_convert_channels_16() failed"); + if (buf == NULL) { + g_set_error(error_r, pcm_convert_quark(), 0, + "Conversion from %u to %u channels " + "is not implemented", + src_format->channels, + dest_format->channels); + return NULL; + } } - if (src_format->sample_rate != dest_format->sample_rate) + if (src_format->sample_rate != dest_format->sample_rate) { buf = pcm_resample_16(&state->resample, dest_format->channels, src_format->sample_rate, buf, len, - dest_format->sample_rate, - &len); + dest_format->sample_rate, &len, + error_r); + if (buf == NULL) + return NULL; + } + + if (dest_format->reverse_endian) { + buf = pcm_byteswap_16(&state->byteswap_buffer, buf, len); + assert(buf != NULL); + } *dest_size_r = len; return buf; @@ -91,8 +112,8 @@ static const int32_t * pcm_convert_24(struct pcm_convert_state *state, const struct audio_format *src_format, const void *src_buffer, size_t src_size, - const struct audio_format *dest_format, - size_t *dest_size_r) + const struct audio_format *dest_format, size_t *dest_size_r, + GError **error_r) { const int32_t *buf; size_t len; @@ -101,24 +122,42 @@ pcm_convert_24(struct pcm_convert_state *state, buf = pcm_convert_to_24(&state->format_buffer, src_format->bits, src_buffer, src_size, &len); - if (!buf) - g_error("pcm_convert_to_24() failed"); + if (buf == NULL) { + g_set_error(error_r, pcm_convert_quark(), 0, + "Conversion from %u to 24 bit is not implemented", + src_format->bits); + return NULL; + } if (src_format->channels != dest_format->channels) { buf = pcm_convert_channels_24(&state->channels_buffer, dest_format->channels, src_format->channels, buf, len, &len); - if (!buf) - g_error("pcm_convert_channels_24() failed"); + if (buf == NULL) { + g_set_error(error_r, pcm_convert_quark(), 0, + "Conversion from %u to %u channels " + "is not implemented", + src_format->channels, + dest_format->channels); + return NULL; + } } - if (src_format->sample_rate != dest_format->sample_rate) + if (src_format->sample_rate != dest_format->sample_rate) { buf = pcm_resample_24(&state->resample, dest_format->channels, src_format->sample_rate, buf, len, - dest_format->sample_rate, - &len); + dest_format->sample_rate, &len, + error_r); + if (buf == NULL) + return NULL; + } + + if (dest_format->reverse_endian) { + buf = pcm_byteswap_32(&state->byteswap_buffer, buf, len); + assert(buf != NULL); + } *dest_size_r = len; return buf; @@ -128,8 +167,8 @@ static const int32_t * pcm_convert_32(struct pcm_convert_state *state, const struct audio_format *src_format, const void *src_buffer, size_t src_size, - const struct audio_format *dest_format, - size_t *dest_size_r) + const struct audio_format *dest_format, size_t *dest_size_r, + GError **error_r) { const int32_t *buf; size_t len; @@ -138,24 +177,42 @@ pcm_convert_32(struct pcm_convert_state *state, buf = pcm_convert_to_32(&state->format_buffer, src_format->bits, src_buffer, src_size, &len); - if (!buf) - g_error("pcm_convert_to_32() failed"); + if (buf == NULL) { + g_set_error(error_r, pcm_convert_quark(), 0, + "Conversion from %u to 24 bit is not implemented", + src_format->bits); + return NULL; + } if (src_format->channels != dest_format->channels) { buf = pcm_convert_channels_32(&state->channels_buffer, dest_format->channels, src_format->channels, buf, len, &len); - if (!buf) - g_error("pcm_convert_channels_32() failed"); + if (buf == NULL) { + g_set_error(error_r, pcm_convert_quark(), 0, + "Conversion from %u to %u channels " + "is not implemented", + src_format->channels, + dest_format->channels); + return NULL; + } } - if (src_format->sample_rate != dest_format->sample_rate) + if (src_format->sample_rate != dest_format->sample_rate) { buf = pcm_resample_32(&state->resample, dest_format->channels, src_format->sample_rate, buf, len, - dest_format->sample_rate, - &len); + dest_format->sample_rate, &len, + error_r); + if (buf == NULL) + return buf; + } + + if (dest_format->reverse_endian) { + buf = pcm_byteswap_32(&state->byteswap_buffer, buf, len); + assert(buf != NULL); + } *dest_size_r = len; return buf; @@ -166,26 +223,32 @@ pcm_convert(struct pcm_convert_state *state, const struct audio_format *src_format, const void *src, size_t src_size, const struct audio_format *dest_format, - size_t *dest_size_r) + size_t *dest_size_r, + GError **error_r) { switch (dest_format->bits) { case 16: return pcm_convert_16(state, src_format, src, src_size, - dest_format, dest_size_r); + dest_format, dest_size_r, + error_r); case 24: return pcm_convert_24(state, src_format, src, src_size, - dest_format, dest_size_r); + dest_format, dest_size_r, + error_r); case 32: return pcm_convert_32(state, src_format, src, src_size, - dest_format, dest_size_r); + dest_format, dest_size_r, + error_r); default: - g_error("cannot convert to %u bit\n", dest_format->bits); + g_set_error(error_r, pcm_convert_quark(), 0, + "PCM conversion to %u bit is not implemented", + dest_format->bits); return NULL; } } |