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Merge pull request #133 from jay98237438/master 

[mod_amr, mod_amrwb] RFC4867 mode-set compliancy
This commit is contained in:
Andrey Volk 2020-05-08 01:55:50 +04:00 committed by GitHub
parent 43b35ae4f2 f7a424a263
commit 5b1088d39f
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 37 additions and 12 deletions
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25
src/mod/codecs/mod_amr/mod_amr.c
View File

@ -246,7 +246,7 @@ static switch_status_t switch_amr_init(switch_codec_t *codec, switch_codec_flag_
switch_codec_fmtp_t codec_fmtp;
amr_codec_settings_t amr_codec_settings = { 0 };
int encoding, decoding;
int x, i, argc;
int x, i, argc, fmtptmp_pos;
char *argv[10];
char fmtptmp[128];
@ -332,25 +332,38 @@ static switch_status_t switch_amr_init(switch_codec_t *codec, switch_codec_flag_
if (context->enc_modes) {
/* choose the highest mode (bitrate) for high audio quality */
for (i = 7; i > -1; i--) {
for (i = SWITCH_AMR_MODES-2; i > -1; i--) {
if (context->enc_modes & (1 << i)) {
context->enc_mode = (switch_byte_t) i;
break;
}
}
/* re-create mode-set */
fmtptmp_pos = switch_snprintf(fmtptmp, sizeof(fmtptmp), "mode-set=");
for (i = 0; SWITCH_AMR_MODES-1 > i; ++i) {
if (context->enc_modes & (1 << i)) {
fmtptmp_pos += switch_snprintf(fmtptmp + fmtptmp_pos, sizeof(fmtptmp) - fmtptmp_pos, fmtptmp_pos > strlen("mode-set=") ? ",%d" : "%d", i);
}
}
} else {
/* use default mode-set */
fmtptmp_pos = switch_snprintf(fmtptmp, sizeof(fmtptmp), "mode-set=%d", context->enc_mode);
}
if (globals.adjust_bitrate) {
switch_set_flag(codec, SWITCH_CODEC_FLAG_HAS_ADJ_BITRATE);
}
if (!globals.volte) {
switch_snprintf(fmtptmp, sizeof(fmtptmp), "octet-align=%d; mode-set=%d", switch_test_flag(context, AMR_OPT_OCTET_ALIGN) ? 1 : 0,
context->enc_mode);
fmtptmp_pos += switch_snprintf(fmtptmp + fmtptmp_pos, sizeof(fmtptmp) - fmtptmp_pos, ";octet-align=%d", switch_test_flag(context, AMR_OPT_OCTET_ALIGN) ? 1 : 0);
} else {
/* some UEs reject the call with 488 if mode-change-capability is not 2 */
switch_snprintf(fmtptmp, sizeof(fmtptmp), "octet-align=%d; mode-set=%d; max-red=0; mode-change-capability=2",
switch_test_flag(context, AMR_OPT_OCTET_ALIGN) ? 1 : 0, context->enc_mode);
fmtptmp_pos += switch_snprintf(fmtptmp + fmtptmp_pos, sizeof(fmtptmp) - fmtptmp_pos, ";octet-align=%d;max-red=0;mode-change-capability=2",
switch_test_flag(context, AMR_OPT_OCTET_ALIGN) ? 1 : 0);
}
codec->fmtp_out = switch_core_strdup(codec->memory_pool, fmtptmp);

24
src/mod/codecs/mod_amrwb/mod_amrwb.c
View File

@ -189,7 +189,7 @@ static switch_status_t switch_amrwb_init(switch_codec_t *codec, switch_codec_fla
#else
struct amrwb_context *context = NULL;
int encoding, decoding;
int x, i, argc;
int x, i, argc, fmtptmp_pos;
char *argv[10];
char fmtptmp[128];
@ -266,12 +266,24 @@ static switch_status_t switch_amrwb_init(switch_codec_t *codec, switch_codec_fla
if (context->enc_modes) {
/* choose the highest mode (bitrate) for high audio quality. */
for (i = 8; i > -1; i--) {
for (i = SWITCH_AMRWB_MODES-2; i > -1; i--) {
if (context->enc_modes & (1 << i)) {
context->enc_mode = (switch_byte_t) i;
break;
}
}
/* re-create mode-set */
fmtptmp_pos = switch_snprintf(fmtptmp, sizeof(fmtptmp), "mode-set=");
for (i = 0; SWITCH_AMRWB_MODES-1 > i; ++i) {
if (context->enc_modes & (1 << i)) {
fmtptmp_pos += switch_snprintf(fmtptmp + fmtptmp_pos, sizeof(fmtptmp) - fmtptmp_pos, fmtptmp_pos > strlen("mode-set=") ? ",%d" : "%d", i);
}
}
} else {
/* use default mode-set */
fmtptmp_pos = switch_snprintf(fmtptmp, sizeof(fmtptmp), "mode-set=%d", context->enc_mode);
}
if (globals.adjust_bitrate) {
@ -279,11 +291,11 @@ static switch_status_t switch_amrwb_init(switch_codec_t *codec, switch_codec_fla
}
if (!globals.volte) {
switch_snprintf(fmtptmp, sizeof(fmtptmp), "octet-align=%d; mode-set=%d",
switch_test_flag(context, AMRWB_OPT_OCTET_ALIGN) ? 1 : 0, context->enc_mode);
fmtptmp_pos += switch_snprintf(fmtptmp + fmtptmp_pos, sizeof(fmtptmp) - fmtptmp_pos, ";octet-align=%d",
switch_test_flag(context, AMRWB_OPT_OCTET_ALIGN) ? 1 : 0);
} else {
switch_snprintf(fmtptmp, sizeof(fmtptmp), "octet-align=%d; mode-set=%d; max-red=0; mode-change-capability=2",
switch_test_flag(context, AMRWB_OPT_OCTET_ALIGN) ? 1 : 0, context->enc_mode);
fmtptmp_pos += switch_snprintf(fmtptmp + fmtptmp_pos, sizeof(fmtptmp) - fmtptmp_pos, ";octet-align=%d;max-red=0;mode-change-capability=2",
switch_test_flag(context, AMRWB_OPT_OCTET_ALIGN) ? 1 : 0);
}
codec->fmtp_out = switch_core_strdup(codec->memory_pool, fmtptmp);