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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@2434 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Brian West 2006-08-29 22:36:18 +00:00
parent bdc6b78103
commit 7be5486677
1 changed files with 17 additions and 13 deletions
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30
src/mod/codecs/mod_g726/mod_g726.c
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@ -34,10 +34,12 @@
static const char modname[] = "mod_g726";
typedef struct {
g726_state context;
uint8_t flag;
uint8_t bytes;
uint8_t buf[5];
uint8_t bits_per_frame;
uint8_t bits;
} g726_handle_t;
static switch_status_t switch_g726_init(switch_codec_t *codec, switch_codec_flag_t flags,
@ -54,7 +56,7 @@ static switch_status_t switch_g726_init(switch_codec_t *codec, switch_codec_flag
} else {
g726_init_state(&handle->context);
codec->private_info = handle;
handle->bytes = codec->implementation->encoded_bytes_per_frame / (codec->implementation->microseconds_per_frame / 1000);
handle->bits_per_frame = codec->implementation->bits_per_second / (codec->implementation->samples_per_second);
return SWITCH_STATUS_SUCCESS;
}
}
@ -115,17 +117,19 @@ static switch_status_t switch_g726_encode(switch_codec_t *codec,
if (decoded_data_len % len == 0) {
uint32_t new_len = 0;
int16_t *ddp = decoded_data;
int8_t *edp = encoded_data;
//int8_t *edp = encoded_data;
int x;
uint32_t loops = decoded_data_len / (sizeof(*ddp));
for (x = 0; x < loops && new_len < *encoded_data_len; x++) {
if (handle->flag & 0x80) {
edp[new_len++] = ((handle->flag & 0xf) << handle->bytes) | encoder(*ddp, AUDIO_ENCODING_LINEAR, context);
handle->flag = 0;
#if 0
if (handle->buf & 0x80) {
edp[new_len++] = ((handle->buf & 0xf) << handle->bits_per_frame) | encoder(*ddp, AUDIO_ENCODING_LINEAR, context);
handle->buf = 0;
} else {
handle->flag = 0x80 | encoder(*ddp, AUDIO_ENCODING_LINEAR, context);
handle->buf = 0x80 | encoder(*ddp, AUDIO_ENCODING_LINEAR, context);
}
#endif
ddp++;
}
@ -217,10 +221,10 @@ static switch_status_t switch_g726_decode(switch_codec_t *codec,
static const switch_codec_implementation_t g726_16k_implementation = {
/*.codec_type */ SWITCH_CODEC_TYPE_AUDIO,
/*.ianacode */ 2,
/*.ianacode */ 127,
/*.iananame */ "G726-16",
/*.samples_per_second */ 8000,
/*.bits_per_second */ 8000,
/*.bits_per_second */ 16000,
/*.microseconds_per_frame */ 20000,
/*.samples_per_frame */ 160,
/*.bytes_per_frame */ 320,
@ -240,7 +244,7 @@ static const switch_codec_implementation_t g726_24k_implementation = {
/*.ianacode */ 2,
/*.iananame */ "G726-24",
/*.samples_per_second */ 8000,
/*.bits_per_second */ 12075,
/*.bits_per_second */ 24000,
/*.microseconds_per_frame */ 20000,
/*.samples_per_frame */ 160,
/*.bytes_per_frame */ 320,
@ -259,7 +263,7 @@ static const switch_codec_implementation_t g726_32k_implementation = {
/*.ianacode */ 2,
/*.iananame */ "G726-32",
/*.samples_per_second */ 8000,
/*.bits_per_second */ 16000,
/*.bits_per_second */ 32000,
/*.microseconds_per_frame */ 20000,
/*.samples_per_frame */ 160,
/*.bytes_per_frame */ 320,
@ -278,7 +282,7 @@ static const switch_codec_implementation_t g726_40k_implementation = {
/*.ianacode */ 2,
/*.iananame */ "G726-40",
/*.samples_per_second */ 8000,
/*.bits_per_second */ 20000,
/*.bits_per_second */ 40000,
/*.microseconds_per_frame */ 20000,
/*.samples_per_frame */ 160,
/*.bytes_per_frame */ 320,