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-rw-r--r--CHANGES2
-rw-r--r--codecs/codec_speex.c82
-rw-r--r--include/asterisk/frame.h5
-rw-r--r--main/channel.c1
-rw-r--r--main/frame.c24
-rw-r--r--main/rtp_engine.c2
-rw-r--r--res/res_rtp_asterisk.c1
7 files changed, 88 insertions, 29 deletions
diff --git a/CHANGES b/CHANGES
index 0126ed88f..779adfbbd 100644
--- a/CHANGES
+++ b/CHANGES
@@ -500,6 +500,8 @@ Miscellaneous
* Distributed devicestate now supports the use of the XMPP protocol, in addition to
AIS. For more information, please see doc/distributed_devstate-XMPP.txt
* The addition of G.719 pass-through support.
+ * Added support for 16khz Speex audio. This can be enabled by using 'allow=speex16'
+ during device configuration.
CLI Changes
diff --git a/codecs/codec_speex.c b/codecs/codec_speex.c
index 2966a7a0c..85f231f9b 100644
--- a/codecs/codec_speex.c
+++ b/codecs/codec_speex.c
@@ -97,12 +97,11 @@ struct speex_coder_pvt {
#endif
};
-
-static int lintospeex_new(struct ast_trans_pvt *pvt)
+static int speex_encoder_construct(struct ast_trans_pvt *pvt, const SpeexMode *profile, int sampling_rate)
{
struct speex_coder_pvt *tmp = pvt->pvt;
- if (!(tmp->speex = speex_encoder_init(&speex_nb_mode)))
+ if (!(tmp->speex = speex_encoder_init(profile)))
return -1;
speex_bits_init(&tmp->bits);
@@ -111,7 +110,7 @@ static int lintospeex_new(struct ast_trans_pvt *pvt)
speex_encoder_ctl(tmp->speex, SPEEX_SET_COMPLEXITY, &complexity);
#ifdef _SPEEX_TYPES_H
if (preproc) {
- tmp->pp = speex_preprocess_state_init(tmp->framesize, 8000); /* XXX what is this 8000 ? */
+ tmp->pp = speex_preprocess_state_init(tmp->framesize, sampling_rate);
speex_preprocess_ctl(tmp->pp, SPEEX_PREPROCESS_SET_VAD, &pp_vad);
speex_preprocess_ctl(tmp->pp, SPEEX_PREPROCESS_SET_AGC, &pp_agc);
speex_preprocess_ctl(tmp->pp, SPEEX_PREPROCESS_SET_AGC_LEVEL, &pp_agc_level);
@@ -139,11 +138,21 @@ static int lintospeex_new(struct ast_trans_pvt *pvt)
return 0;
}
-static int speextolin_new(struct ast_trans_pvt *pvt)
+static int lintospeex_new(struct ast_trans_pvt *pvt)
+{
+ return speex_encoder_construct(pvt, &speex_nb_mode, 8000);
+}
+
+static int lin16tospeexwb_new(struct ast_trans_pvt *pvt)
+{
+ return speex_encoder_construct(pvt, &speex_wb_mode, 16000);
+}
+
+static int speex_decoder_construct(struct ast_trans_pvt *pvt, const SpeexMode *profile)
{
struct speex_coder_pvt *tmp = pvt->pvt;
- if (!(tmp->speex = speex_decoder_init(&speex_nb_mode)))
+ if (!(tmp->speex = speex_decoder_init(profile)))
return -1;
speex_bits_init(&tmp->bits);
@@ -154,6 +163,16 @@ static int speextolin_new(struct ast_trans_pvt *pvt)
return 0;
}
+static int speextolin_new(struct ast_trans_pvt *pvt)
+{
+ return speex_decoder_construct(pvt, &speex_nb_mode);
+}
+
+static int speexwbtolin16_new(struct ast_trans_pvt *pvt)
+{
+ return speex_decoder_construct(pvt, &speex_wb_mode);
+}
+
/*! \brief convert and store into outbuf */
static int speextolin_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
{
@@ -337,6 +356,34 @@ static struct ast_translator lintospeex = {
.buf_size = BUFFER_SAMPLES * 2, /* XXX maybe a lot less ? */
};
+static struct ast_translator speexwbtolin16 = {
+ .name = "speexwbtolin16",
+ .srcfmt = AST_FORMAT_SPEEX16,
+ .dstfmt = AST_FORMAT_SLINEAR16,
+ .newpvt = speexwbtolin16_new,
+ .framein = speextolin_framein,
+ .destroy = speextolin_destroy,
+ .sample = speex_sample,
+ .desc_size = sizeof(struct speex_coder_pvt),
+ .buffer_samples = BUFFER_SAMPLES,
+ .buf_size = BUFFER_SAMPLES * 2,
+ .native_plc = 1,
+};
+
+static struct ast_translator lin16tospeexwb = {
+ .name = "lin16tospeexwb",
+ .srcfmt = AST_FORMAT_SLINEAR16,
+ .dstfmt = AST_FORMAT_SPEEX16,
+ .newpvt = lin16tospeexwb_new,
+ .framein = lintospeex_framein,
+ .frameout = lintospeex_frameout,
+ .destroy = lintospeex_destroy,
+ .sample = slin8_sample,
+ .desc_size = sizeof(struct speex_coder_pvt),
+ .buffer_samples = BUFFER_SAMPLES,
+ .buf_size = BUFFER_SAMPLES * 2, /* XXX maybe a lot less ? */
+};
+
static int parse_config(int reload)
{
struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
@@ -441,28 +488,29 @@ static int reload(void)
static int unload_module(void)
{
- int res;
+ int res = 0;
- res = ast_unregister_translator(&lintospeex);
res |= ast_unregister_translator(&speextolin);
+ res |= ast_unregister_translator(&lintospeex);
+ res |= ast_unregister_translator(&speexwbtolin16);
+ res |= ast_unregister_translator(&lin16tospeexwb);
return res;
}
static int load_module(void)
{
- int res;
+ int res = 0;
if (parse_config(0))
return AST_MODULE_LOAD_DECLINE;
- res=ast_register_translator(&speextolin);
- if (!res)
- res=ast_register_translator(&lintospeex);
- else
- ast_unregister_translator(&speextolin);
- if (res)
- return AST_MODULE_LOAD_FAILURE;
- return AST_MODULE_LOAD_SUCCESS;
+
+ res |= ast_register_translator(&speextolin);
+ res |= ast_register_translator(&lintospeex);
+ res |= ast_register_translator(&speexwbtolin16);
+ res |= ast_register_translator(&lin16tospeexwb);
+
+ return res;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Speex Coder/Decoder",
diff --git a/include/asterisk/frame.h b/include/asterisk/frame.h
index cbe8cfd07..5cf137fae 100644
--- a/include/asterisk/frame.h
+++ b/include/asterisk/frame.h
@@ -296,8 +296,10 @@ extern struct ast_frame ast_null_frame;
#define AST_FORMAT_TEXT_MASK (((1ULL << 30)-1) & ~(AST_FORMAT_AUDIO_MASK) & ~(AST_FORMAT_VIDEO_MASK))
/*! G.719 (64 kbps assumed) */
#define AST_FORMAT_G719 (1ULL << 32)
+/*! SpeeX Wideband (16kHz) Free Compression */
+#define AST_FORMAT_SPEEX16 (1ULL << 33)
/*! Raw mu-law data (G.711) */
-#define AST_FORMAT_TESTLAW (1ULL << 47)
+#define AST_FORMAT_TESTLAW (1ULL << 47)
/*! Reserved bit - do not use */
#define AST_FORMAT_RESERVED (1ULL << 63)
@@ -745,6 +747,7 @@ static force_inline int ast_format_rate(format_t format)
case AST_FORMAT_G722:
case AST_FORMAT_SLINEAR16:
case AST_FORMAT_SIREN7:
+ case AST_FORMAT_SPEEX16:
return 16000;
case AST_FORMAT_SIREN14:
return 32000;
diff --git a/main/channel.c b/main/channel.c
index 90ac32de0..af2c036a9 100644
--- a/main/channel.c
+++ b/main/channel.c
@@ -813,6 +813,7 @@ format_t ast_best_codec(format_t fmts)
/*! iLBC is not too bad */
AST_FORMAT_ILBC,
/*! Speex is free, but computationally more expensive than GSM */
+ AST_FORMAT_SPEEX16,
AST_FORMAT_SPEEX,
/*! Ick, LPC10 sounds terrible, but at least we have code for it, if you're tacky enough
to use it */
diff --git a/main/frame.c b/main/frame.c
index 1eb7d411b..9f599a991 100644
--- a/main/frame.c
+++ b/main/frame.c
@@ -104,6 +104,7 @@ static const struct ast_format_list AST_FORMAT_LIST[] = {
{ AST_FORMAT_LPC10, "lpc10", 8000, "LPC10", 7, 20, 20, 20, 20 }, /*!< codec_lpc10.c */
{ AST_FORMAT_G729A, "g729", 8000, "G.729A", 10, 10, 230, 10, 20, AST_SMOOTHER_FLAG_G729 }, /*!< Binary commercial distribution */
{ AST_FORMAT_SPEEX, "speex", 8000, "SpeeX", 10, 10, 60, 10, 20 }, /*!< codec_speex.c */
+ { AST_FORMAT_SPEEX16, "speex16", 16000, "SpeeX 16khz", 10, 10, 60, 10, 20 }, /*!< codec_speex.c */
{ AST_FORMAT_ILBC, "ilbc", 8000, "iLBC", 50, 30, 30, 30, 30 }, /*!< codec_ilbc.c */ /* inc=30ms - workaround */
{ AST_FORMAT_G726_AAL2, "g726aal2", 8000, "G.726 AAL2", 40, 10, 300, 10, 20 }, /*!< codec_g726.c */
{ AST_FORMAT_G722, "g722", 16000, "G722", 80, 10, 150, 10, 20 }, /*!< codec_g722.c */
@@ -119,7 +120,7 @@ static const struct ast_format_list AST_FORMAT_LIST[] = {
{ AST_FORMAT_T140, "t140", 0, "Passthrough T.140 Realtime Text" }, /*!< Passthrough support for T.140 Realtime Text */
{ AST_FORMAT_SIREN7, "siren7", 16000, "ITU G.722.1 (Siren7, licensed from Polycom)", 80, 20, 80, 20, 20 }, /*!< Binary commercial distribution */
{ AST_FORMAT_SIREN14, "siren14", 32000, "ITU G.722.1 Annex C, (Siren14, licensed from Polycom)", 120, 20, 80, 20, 20 }, /*!< Binary commercial distribution */
- { AST_FORMAT_TESTLAW, "testlaw", 8000, "G.711 test-law", 80, 10, 150, 10, 20 }, /*!< codec_ulaw.c */
+ { AST_FORMAT_TESTLAW, "testlaw", 8000, "G.711 test-law", 80, 10, 150, 10, 20 }, /*!< codec_ulaw.c */
{ AST_FORMAT_G719, "g719", 48000, "ITU G.719", 160, 20, 80, 20, 20 },
};
@@ -1354,7 +1355,7 @@ static unsigned char get_n_bits_at(unsigned char *data, int n, int bit)
static int speex_get_wb_sz_at(unsigned char *data, int len, int bit)
{
static const int SpeexWBSubModeSz[] = {
- 0, 36, 112, 192,
+ 4, 36, 112, 192,
352, 0, 0, 0 };
int off = bit;
unsigned char c;
@@ -1407,12 +1408,8 @@ static int speex_samples(unsigned char *data, int len)
}
bit += off;
- if ((len * 8 - bit) == 0) {
+ if ((len * 8 - bit) < 5)
break;
- } else if ((len * 8 - bit) < 5) {
- ast_log(LOG_WARNING, "Not enough bits remaining after wide band for speex samples.\n");
- break;
- }
/* get control bits */
c = get_n_bits_at(data, 5, bit);
@@ -1427,12 +1424,14 @@ static int speex_samples(unsigned char *data, int len)
bit += 4;
bit += SpeexInBandSz[c];
} else if (c == 13) {
- /* user in-band; next 5 bits contain msg len */
- c = get_n_bits_at(data, 5, bit);
- bit += 5;
- bit += c * 8;
+ /* user in-band; next 4 bits contain msg len */
+ c = get_n_bits_at(data, 4, bit);
+ bit += 4;
+ /* after which it's 5-bit signal id + c bytes of data */
+ bit += 5 + c * 8;
} else if (c > 8) {
/* unknown */
+ ast_log(LOG_WARNING, "Unknown speex control frame %d\n", c);
break;
} else {
/* skip number bits for submode (less the 5 control bits) */
@@ -1452,6 +1451,9 @@ int ast_codec_get_samples(struct ast_frame *f)
case AST_FORMAT_SPEEX:
samples = speex_samples(f->data.ptr, f->datalen);
break;
+ case AST_FORMAT_SPEEX16:
+ samples = 2 * speex_samples(f->data.ptr, f->datalen);
+ break;
case AST_FORMAT_G723_1:
samples = g723_samples(f->data.ptr, f->datalen);
break;
diff --git a/main/rtp_engine.c b/main/rtp_engine.c
index c42d3f6fb..5e4db2309 100644
--- a/main/rtp_engine.c
+++ b/main/rtp_engine.c
@@ -102,6 +102,7 @@ static const struct ast_rtp_mime_type {
{{1, AST_FORMAT_G729A}, "audio", "G729A", 8000},
{{1, AST_FORMAT_G729A}, "audio", "G.729", 8000},
{{1, AST_FORMAT_SPEEX}, "audio", "speex", 8000},
+ {{1, AST_FORMAT_SPEEX16}, "audio", "speex", 16000},
{{1, AST_FORMAT_ILBC}, "audio", "iLBC", 8000},
/* this is the sample rate listed in the RTP profile for the G.722
codec, *NOT* the actual sample rate of the media stream
@@ -171,6 +172,7 @@ static const struct ast_rtp_payload_type static_RTP_PT[AST_RTP_MAX_PT] = {
[112] = {1, AST_FORMAT_G726_AAL2},
[115] = {1, AST_FORMAT_SIREN14},
[116] = {1, AST_FORMAT_G719},
+ [117] = {1, AST_FORMAT_SPEEX16},
[121] = {0, AST_RTP_CISCO_DTMF}, /* Must be type 121 */
};
diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c
index d9f54d56c..7fe8ff9ba 100644
--- a/res/res_rtp_asterisk.c
+++ b/res/res_rtp_asterisk.c
@@ -1228,6 +1228,7 @@ static int ast_rtp_write(struct ast_rtp_instance *instance, struct ast_frame *fr
switch (subclass) {
case AST_FORMAT_SPEEX:
+ case AST_FORMAT_SPEEX16:
case AST_FORMAT_G723_1:
case AST_FORMAT_SIREN7:
case AST_FORMAT_SIREN14:
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-19 01:31:44 +0000