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Diffstat (limited to 'codecs/codec_dahdi.c')
-rw-r--r--codecs/codec_dahdi.c399
1 files changed, 333 insertions, 66 deletions
diff --git a/codecs/codec_dahdi.c b/codecs/codec_dahdi.c
index caaf99cdf..64f220eef 100644
--- a/codecs/codec_dahdi.c
+++ b/codecs/codec_dahdi.c
@@ -51,6 +51,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include "asterisk/utils.h"
#include "asterisk/linkedlists.h"
#include "asterisk/ulaw.h"
+#include "asterisk/format_compatibility.h"
#define BUFFER_SIZE 8000
@@ -58,17 +59,29 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#define G729_SAMPLES 160
#define ULAW_SAMPLES 160
+/* Defines from DAHDI. */
#ifndef DAHDI_FORMAT_MAX_AUDIO
+/*! G.723.1 compression */
#define DAHDI_FORMAT_G723_1 (1 << 0)
+/*! GSM compression */
#define DAHDI_FORMAT_GSM (1 << 1)
+/*! Raw mu-law data (G.711) */
#define DAHDI_FORMAT_ULAW (1 << 2)
+/*! Raw A-law data (G.711) */
#define DAHDI_FORMAT_ALAW (1 << 3)
+/*! ADPCM (G.726, 32kbps) */
#define DAHDI_FORMAT_G726 (1 << 4)
+/*! ADPCM (IMA) */
#define DAHDI_FORMAT_ADPCM (1 << 5)
+/*! Raw 16-bit Signed Linear (8000 Hz) PCM */
#define DAHDI_FORMAT_SLINEAR (1 << 6)
+/*! LPC10, 180 samples/frame */
#define DAHDI_FORMAT_LPC10 (1 << 7)
+/*! G.729A audio */
#define DAHDI_FORMAT_G729A (1 << 8)
+/*! SpeeX Free Compression */
#define DAHDI_FORMAT_SPEEX (1 << 9)
+/*! iLBC Free Compression */
#define DAHDI_FORMAT_ILBC (1 << 10)
#endif
@@ -78,6 +91,233 @@ static struct channel_usage {
int decoders;
} channels;
+#if defined(NOT_NEEDED)
+/*!
+ * \internal
+ * \brief Convert DAHDI format bitfield to old Asterisk format bitfield.
+ * \since 13.0.0
+ *
+ * \param dahdi Bitfield from DAHDI to convert.
+ *
+ * \note They should be the same values but they don't have to be.
+ *
+ * \return Old Asterisk bitfield equivalent.
+ */
+static uint64_t bitfield_dahdi2ast(unsigned dahdi)
+{
+ uint64_t ast;
+
+ switch (dahdi) {
+ case DAHDI_FORMAT_G723_1:
+ ast = AST_FORMAT_G723;
+ break;
+ case DAHDI_FORMAT_GSM:
+ ast = AST_FORMAT_GSM;
+ break;
+ case DAHDI_FORMAT_ULAW:
+ ast = AST_FORMAT_ULAW;
+ break;
+ case DAHDI_FORMAT_ALAW:
+ ast = AST_FORMAT_ALAW;
+ break;
+ case DAHDI_FORMAT_G726:
+ ast = AST_FORMAT_G726_AAL2;
+ break;
+ case DAHDI_FORMAT_ADPCM:
+ ast = AST_FORMAT_ADPCM;
+ break;
+ case DAHDI_FORMAT_SLINEAR:
+ ast = AST_FORMAT_SLIN;
+ break;
+ case DAHDI_FORMAT_LPC10:
+ ast = AST_FORMAT_LPC10;
+ break;
+ case DAHDI_FORMAT_G729A:
+ ast = AST_FORMAT_G729;
+ break;
+ case DAHDI_FORMAT_SPEEX:
+ ast = AST_FORMAT_SPEEX;
+ break;
+ case DAHDI_FORMAT_ILBC:
+ ast = AST_FORMAT_ILBC;
+ break;
+ default:
+ ast = 0;
+ break;
+ }
+
+ return ast;
+}
+#endif /* defined(NOT_NEEDED) */
+
+/*!
+ * \internal
+ * \brief Convert old Asterisk format bitfield to DAHDI format bitfield.
+ * \since 13.0.0
+ *
+ * \param ast Old Asterisk bitfield to convert.
+ *
+ * \note They should be the same values but they don't have to be.
+ *
+ * \return DAHDI bitfield equivalent.
+ */
+static unsigned bitfield_ast2dahdi(uint64_t ast)
+{
+ unsigned dahdi;
+
+ switch (ast) {
+ case AST_FORMAT_G723:
+ dahdi = DAHDI_FORMAT_G723_1;
+ break;
+ case AST_FORMAT_GSM:
+ dahdi = DAHDI_FORMAT_GSM;
+ break;
+ case AST_FORMAT_ULAW:
+ dahdi = DAHDI_FORMAT_ULAW;
+ break;
+ case AST_FORMAT_ALAW:
+ dahdi = DAHDI_FORMAT_ALAW;
+ break;
+ case AST_FORMAT_G726_AAL2:
+ dahdi = DAHDI_FORMAT_G726;
+ break;
+ case AST_FORMAT_ADPCM:
+ dahdi = DAHDI_FORMAT_ADPCM;
+ break;
+ case AST_FORMAT_SLIN:
+ dahdi = DAHDI_FORMAT_SLINEAR;
+ break;
+ case AST_FORMAT_LPC10:
+ dahdi = DAHDI_FORMAT_LPC10;
+ break;
+ case AST_FORMAT_G729:
+ dahdi = DAHDI_FORMAT_G729A;
+ break;
+ case AST_FORMAT_SPEEX:
+ dahdi = DAHDI_FORMAT_SPEEX;
+ break;
+ case AST_FORMAT_ILBC:
+ dahdi = DAHDI_FORMAT_ILBC;
+ break;
+ default:
+ dahdi = 0;
+ break;
+ }
+
+ return dahdi;
+}
+
+/*!
+ * \internal
+ * \brief Get the DAHDI codec by index.
+ * \since 13.0.0
+ *
+ * \param idx Codex index (0-31).
+ *
+ * \return Specified codec if exists otherwise NULL.
+ */
+static const struct ast_codec *get_dahdi_codec(unsigned idx)
+{
+ const struct ast_codec *codec;
+
+ static const struct ast_codec dahdi_g723_1 = {
+ .name = "g723",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_gsm = {
+ .name = "gsm",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_ulaw = {
+ .name = "ulaw",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_alaw = {
+ .name = "alaw",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_g726 = {
+ .name = "g726",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_adpcm = {
+ .name = "adpcm",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_slinear = {
+ .name = "slin",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_lpc10 = {
+ .name = "lpc10",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_g729a = {
+ .name = "g729",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_speex = {
+ .name = "speex",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+ static const struct ast_codec dahdi_ilbc = {
+ .name = "ilbc",
+ .type = AST_MEDIA_TYPE_AUDIO,
+ .sample_rate = 8000,
+ };
+
+ switch (1UL << idx) {
+ case DAHDI_FORMAT_G723_1:
+ codec = &dahdi_g723_1;
+ break;
+ case DAHDI_FORMAT_GSM:
+ codec = &dahdi_gsm;
+ break;
+ case DAHDI_FORMAT_ULAW:
+ codec = &dahdi_ulaw;
+ break;
+ case DAHDI_FORMAT_ALAW:
+ codec = &dahdi_alaw;
+ break;
+ case DAHDI_FORMAT_G726:
+ codec = &dahdi_g726;
+ break;
+ case DAHDI_FORMAT_ADPCM:
+ codec = &dahdi_adpcm;
+ break;
+ case DAHDI_FORMAT_SLINEAR:
+ codec = &dahdi_slinear;
+ break;
+ case DAHDI_FORMAT_LPC10:
+ codec = &dahdi_lpc10;
+ break;
+ case DAHDI_FORMAT_G729A:
+ codec = &dahdi_g729a;
+ break;
+ case DAHDI_FORMAT_SPEEX:
+ codec = &dahdi_speex;
+ break;
+ case DAHDI_FORMAT_ILBC:
+ codec = &dahdi_ilbc;
+ break;
+ default:
+ codec = NULL;
+ break;
+ }
+
+ return codec;
+}
+
static char *handle_cli_transcoder_show(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
static struct ast_cli_entry cli[] = {
@@ -190,7 +430,7 @@ static int dahdi_encoder_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
{
struct codec_dahdi_pvt *dahdip = pvt->pvt;
- if (!f->subclass.format.id) {
+ if (!f->subclass.format) {
/* We're just faking a return for calculation purposes. */
dahdip->fake = 2;
pvt->samples = f->samples;
@@ -245,18 +485,16 @@ static struct ast_frame *dahdi_encoder_frameout(struct ast_trans_pvt *pvt)
int res;
if (2 == dahdip->fake) {
+ struct ast_frame frm = {
+ .frametype = AST_FRAME_VOICE,
+ .samples = dahdip->required_samples,
+ .src = pvt->t->name,
+ };
+
dahdip->fake = 1;
- pvt->f.frametype = AST_FRAME_VOICE;
- ast_format_clear(&pvt->f.subclass.format);
- pvt->f.samples = dahdip->required_samples;
- pvt->f.data.ptr = NULL;
- pvt->f.offset = 0;
- pvt->f.datalen = 0;
- pvt->f.mallocd = 0;
pvt->samples = 0;
- return ast_frisolate(&pvt->f);
-
+ return ast_frisolate(&frm);
} else if (1 == dahdip->fake) {
dahdip->fake = 0;
return NULL;
@@ -277,13 +515,7 @@ static struct ast_frame *dahdi_encoder_frameout(struct ast_trans_pvt *pvt)
}
} else {
pvt->f.datalen = res;
- pvt->f.frametype = AST_FRAME_VOICE;
- ast_format_copy(&pvt->f.subclass.format, &pvt->t->dst_format);
- pvt->f.mallocd = 0;
- pvt->f.offset = AST_FRIENDLY_OFFSET;
- pvt->f.src = pvt->t->name;
- pvt->f.data.ptr = pvt->outbuf.c;
- pvt->f.samples = ast_codec_get_samples(&pvt->f);
+ pvt->f.samples = ast_codec_samples_count(&pvt->f);
dahdip->samples_written_to_hardware =
(dahdip->samples_written_to_hardware >= pvt->f.samples) ?
@@ -302,7 +534,7 @@ static int dahdi_decoder_framein(struct ast_trans_pvt *pvt, struct ast_frame *f)
{
struct codec_dahdi_pvt *dahdip = pvt->pvt;
- if (!f->subclass.format.id) {
+ if (!f->subclass.format) {
/* We're just faking a return for calculation purposes. */
dahdip->fake = 2;
pvt->samples = f->samples;
@@ -327,16 +559,16 @@ static struct ast_frame *dahdi_decoder_frameout(struct ast_trans_pvt *pvt)
struct codec_dahdi_pvt *dahdip = pvt->pvt;
if (2 == dahdip->fake) {
+ struct ast_frame frm = {
+ .frametype = AST_FRAME_VOICE,
+ .samples = dahdip->required_samples,
+ .src = pvt->t->name,
+ };
+
dahdip->fake = 1;
- pvt->f.frametype = AST_FRAME_VOICE;
- ast_format_clear(&pvt->f.subclass.format);
- pvt->f.samples = dahdip->required_samples;
- pvt->f.data.ptr = NULL;
- pvt->f.offset = 0;
- pvt->f.datalen = 0;
- pvt->f.mallocd = 0;
pvt->samples = 0;
- return ast_frisolate(&pvt->f);
+
+ return ast_frisolate(&frm);
} else if (1 == dahdip->fake) {
pvt->samples = 0;
dahdip->fake = 0;
@@ -370,12 +602,6 @@ static struct ast_frame *dahdi_decoder_frameout(struct ast_trans_pvt *pvt)
pvt->f.datalen = res;
}
pvt->datalen = 0;
- pvt->f.frametype = AST_FRAME_VOICE;
- ast_format_copy(&pvt->f.subclass.format, &pvt->t->dst_format);
- pvt->f.mallocd = 0;
- pvt->f.offset = AST_FRIENDLY_OFFSET;
- pvt->f.src = pvt->t->name;
- pvt->f.data.ptr = pvt->outbuf.c;
pvt->f.samples = res;
pvt->samples = 0;
dahdip->samples_written_to_hardware =
@@ -394,9 +620,9 @@ static void dahdi_destroy(struct ast_trans_pvt *pvt)
{
struct codec_dahdi_pvt *dahdip = pvt->pvt;
- switch (ast_format_id_from_old_bitfield(dahdip->fmts.dstfmt)) {
- case AST_FORMAT_G729A:
- case AST_FORMAT_G723_1:
+ switch (dahdip->fmts.dstfmt) {
+ case DAHDI_FORMAT_G729A:
+ case DAHDI_FORMAT_G723_1:
ast_atomic_fetchadd_int(&channels.encoders, -1);
break;
default:
@@ -407,7 +633,39 @@ static void dahdi_destroy(struct ast_trans_pvt *pvt)
close(dahdip->fd);
}
-static int dahdi_translate(struct ast_trans_pvt *pvt, struct ast_format *dst_format, struct ast_format *src_format)
+static struct ast_format *dahdi_format_to_cached(int format)
+{
+ switch (format) {
+ case DAHDI_FORMAT_G723_1:
+ return ast_format_g723;
+ case DAHDI_FORMAT_GSM:
+ return ast_format_gsm;
+ case DAHDI_FORMAT_ULAW:
+ return ast_format_ulaw;
+ case DAHDI_FORMAT_ALAW:
+ return ast_format_alaw;
+ case DAHDI_FORMAT_G726:
+ return ast_format_g726;
+ case DAHDI_FORMAT_ADPCM:
+ return ast_format_adpcm;
+ case DAHDI_FORMAT_SLINEAR:
+ return ast_format_slin;
+ case DAHDI_FORMAT_LPC10:
+ return ast_format_lpc10;
+ case DAHDI_FORMAT_G729A:
+ return ast_format_g729;
+ case DAHDI_FORMAT_SPEEX:
+ return ast_format_speex;
+ case DAHDI_FORMAT_ILBC:
+ return ast_format_ilbc;
+ }
+
+ /* This will never be reached */
+ ast_assert(0);
+ return NULL;
+}
+
+static int dahdi_translate(struct ast_trans_pvt *pvt, struct ast_codec *dst_codec, struct ast_codec *src_codec)
{
/* Request translation through zap if possible */
int fd;
@@ -421,10 +679,13 @@ static int dahdi_translate(struct ast_trans_pvt *pvt, struct ast_format *dst_for
return -1;
}
- dahdip->fmts.srcfmt = ast_format_to_old_bitfield(src_format);
- dahdip->fmts.dstfmt = ast_format_to_old_bitfield(dst_format);
+ dahdip->fmts.srcfmt = bitfield_ast2dahdi(ast_format_compatibility_codec2bitfield(src_codec));
+ dahdip->fmts.dstfmt = bitfield_ast2dahdi(ast_format_compatibility_codec2bitfield(dst_codec));
+
+ ast_assert(pvt->f.subclass.format == NULL);
+ pvt->f.subclass.format = ao2_bump(dahdi_format_to_cached(dahdip->fmts.dstfmt));
- ast_debug(1, "Opening transcoder channel from %s to %s.\n", ast_getformatname(src_format), ast_getformatname(dst_format));
+ ast_debug(1, "Opening transcoder channel from %s to %s.\n", src_codec->name, dst_codec->name);
retry:
if (ioctl(fd, DAHDI_TC_ALLOCATE, &dahdip->fmts)) {
@@ -437,14 +698,14 @@ retry:
* support for ULAW instead of signed linear and then
* we'll just convert from ulaw to signed linear in
* software. */
- if (AST_FORMAT_SLINEAR == ast_format_id_from_old_bitfield(dahdip->fmts.srcfmt)) {
+ if (dahdip->fmts.srcfmt == DAHDI_FORMAT_SLINEAR) {
ast_debug(1, "Using soft_slin support on source\n");
dahdip->softslin = 1;
- dahdip->fmts.srcfmt = ast_format_id_to_old_bitfield(AST_FORMAT_ULAW);
- } else if (AST_FORMAT_SLINEAR == ast_format_id_from_old_bitfield(dahdip->fmts.dstfmt)) {
+ dahdip->fmts.srcfmt = DAHDI_FORMAT_ULAW;
+ } else if (dahdip->fmts.dstfmt == DAHDI_FORMAT_SLINEAR) {
ast_debug(1, "Using soft_slin support on destination\n");
dahdip->softslin = 1;
- dahdip->fmts.dstfmt = ast_format_id_to_old_bitfield(AST_FORMAT_ULAW);
+ dahdip->fmts.dstfmt = DAHDI_FORMAT_ULAW;
}
tried_once = 1;
goto retry;
@@ -463,13 +724,13 @@ retry:
dahdip->fd = fd;
- dahdip->required_samples = ((dahdip->fmts.dstfmt|dahdip->fmts.srcfmt) & (ast_format_id_to_old_bitfield(AST_FORMAT_G723_1))) ? G723_SAMPLES : G729_SAMPLES;
+ dahdip->required_samples = ((dahdip->fmts.dstfmt|dahdip->fmts.srcfmt) & (DAHDI_FORMAT_G723_1)) ? G723_SAMPLES : G729_SAMPLES;
- switch (ast_format_id_from_old_bitfield(dahdip->fmts.dstfmt)) {
- case AST_FORMAT_G729A:
+ switch (dahdip->fmts.dstfmt) {
+ case DAHDI_FORMAT_G729A:
ast_atomic_fetchadd_int(&channels.encoders, +1);
break;
- case AST_FORMAT_G723_1:
+ case DAHDI_FORMAT_G723_1:
ast_atomic_fetchadd_int(&channels.encoders, +1);
break;
default:
@@ -483,8 +744,8 @@ retry:
static int dahdi_new(struct ast_trans_pvt *pvt)
{
return dahdi_translate(pvt,
- &pvt->t->dst_format,
- &pvt->t->src_format);
+ pvt->t->core_dst_codec,
+ pvt->t->core_src_codec);
}
static struct ast_frame *fakesrc_sample(void)
@@ -501,33 +762,37 @@ static struct ast_frame *fakesrc_sample(void)
static int is_encoder(struct translator *zt)
{
- if ((zt->t.src_format.id == AST_FORMAT_ULAW) ||
- (zt->t.src_format.id == AST_FORMAT_ALAW) ||
- (zt->t.src_format.id == AST_FORMAT_SLINEAR)) {
+ if ((zt->t.core_src_codec->id == ast_format_get_codec_id(ast_format_ulaw)) ||
+ (zt->t.core_src_codec->id == ast_format_get_codec_id(ast_format_alaw)) ||
+ (zt->t.core_src_codec->id == ast_format_get_codec_id(ast_format_slin))) {
return 1;
} else {
return 0;
}
}
-static int register_translator(int dst, int src)
+static int register_translator(unsigned dst, unsigned src)
{
+ const struct ast_codec *dst_codec;
+ const struct ast_codec *src_codec;
struct translator *zt;
int res;
- struct ast_format dst_format;
- struct ast_format src_format;
- ast_format_from_old_bitfield(&dst_format, (1 << dst));
- ast_format_from_old_bitfield(&src_format, (1 << src));
+ dst_codec = get_dahdi_codec(dst);
+ src_codec = get_dahdi_codec(src);
+ if (!dst_codec || !src_codec) {
+ return -1;
+ }
if (!(zt = ast_calloc(1, sizeof(*zt)))) {
return -1;
}
- snprintf((char *) (zt->t.name), sizeof(zt->t.name), "zap%sto%s",
- ast_getformatname(&src_format), ast_getformatname(&dst_format));
- ast_format_copy(&zt->t.src_format, &src_format);
- ast_format_copy(&zt->t.dst_format, &dst_format);
+ snprintf(zt->t.name, sizeof(zt->t.name), "dahdi_%s_to_%s",
+ src_codec->name, dst_codec->name);
+
+ memcpy(&zt->t.src_codec, src_codec, sizeof(*src_codec));
+ memcpy(&zt->t.dst_codec, dst_codec, sizeof(*dst_codec));
zt->t.buf_size = BUFFER_SIZE;
if (is_encoder(zt)) {
zt->t.framein = dahdi_encoder_framein;
@@ -557,17 +822,20 @@ static int register_translator(int dst, int src)
return res;
}
-static void drop_translator(int dst, int src)
+static void drop_translator(unsigned dst, unsigned src)
{
struct translator *cur;
AST_LIST_LOCK(&translators);
AST_LIST_TRAVERSE_SAFE_BEGIN(&translators, cur, entry) {
- if (cur->t.src_format.id != ast_format_id_from_old_bitfield((1 << src)))
+ if (bitfield_ast2dahdi(ast_format_compatibility_codec2bitfield(cur->t.core_src_codec))
+ != (1U << src)) {
continue;
-
- if (cur->t.dst_format.id != ast_format_id_from_old_bitfield((1 << dst)))
+ }
+ if (bitfield_ast2dahdi(ast_format_compatibility_codec2bitfield(cur->t.core_dst_codec))
+ != (1U << dst)) {
continue;
+ }
AST_LIST_REMOVE_CURRENT(entry);
ast_unregister_translator(&cur->t);
@@ -678,7 +946,6 @@ static int unload_module(void)
static int load_module(void)
{
- ast_ulaw_init();
find_transcoders();
ast_cli_register_multiple(cli, ARRAY_LEN(cli));
return AST_MODULE_LOAD_SUCCESS;