FS-9825: Added AMR-WB transcoding capabilities (in both Bandwidth Efficient and Octet Aligned modes)
This commit is contained in:
Dragos Oancea
parent
7884bee06a
commit
3ccf1704c1
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@ -831,6 +831,10 @@ PKG_CHECK_MODULES([AMR], [opencore-amrnb >= 0.1.0],[
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AM_CONDITIONAL([HAVE_AMR],[true])],[
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AC_MSG_RESULT([no]); AM_CONDITIONAL([HAVE_AMR],[false])])
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PKG_CHECK_MODULES([AMRWB], [opencore-amrwb >= 0.1.0 vo-amrwbenc >= 0.1.0],[
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AM_CONDITIONAL([HAVE_AMRWB],[true])],[
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AC_MSG_RESULT([no]); AM_CONDITIONAL([HAVE_AMRWB],[false])])
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AC_CHECK_LIB(apr-1, apr_pool_mutex_set, use_system_apr=yes, use_system_apr=no)
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AM_CONDITIONAL([SYSTEM_APR],[test "${use_system_apr}" = "yes"])
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AC_CHECK_LIB(aprutil-1, apr_queue_pop_timeout, use_system_aprutil=yes, use_system_aprutil=no)
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@ -1934,7 +1938,6 @@ AM_CONDITIONAL(ISMAC, [test `uname -s` = Darwin])
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AM_CONDITIONAL(ISFREEBSD, [test `uname -s` = FreeBSD])
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AM_CONDITIONAL(IS64BITLINUX, [test `uname -m` = x86_64])
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AM_CONDITIONAL(HAVE_AMRWB, [ test -d ${switch_srcdir}/libs/amrwb ])
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AM_CONDITIONAL(HAVE_G723_1, [ test -d ${switch_srcdir}/libs/libg723_1 ])
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AM_CONDITIONAL(HAVE_G729, [ test -d ${switch_srcdir}/libs/libg729 ])
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@ -0,0 +1,14 @@
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LEGAL.
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Please bear in mind that the software, as modified by Athonet, implements
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functions for the AMR standard, which are covered by third parties' essential patents.
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To the best of Athonet's knowledge, such essential patent rights holders are:
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Nokia, Orange, Acacia (now VoiceAge) and Ericsson.
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ATHONET HEREBY DISCLAIMS ANY AND ALL LIABILITY IN CASE YOUR USE,
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MODIFICATION, COPY OR FURTHER DISTRIBUTION OF THE SOFTWARE, AS
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MODIFIED BY ATHONET, INFRINGES IN ANY WAY THIRD PARTY'S INTELLECTUAL PROPERTY RIGHTS.
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THIS DISCLAIMER SHALL NOT PREJUDICE ANY OTHER LIMITATION OF LIABILITY
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INCLUDED IN THE APPLICABLE LICENSE.
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@ -1,20 +1,21 @@
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include $(top_srcdir)/build/modmake.rulesam
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MODNAME=mod_amrwb
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AMRWB_DIR=$(switch_srcdir)/libs/amrwb
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AMRWB_BUILDDIR=$(switch_builddir)/libs/amrwb
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AMRWB_A=$(AMRWB_BUILDDIR)/libamrwb.a
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mod_LTLIBRARIES = mod_amrwb.la
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if HAVE_AMRWB
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mod_amrwb_la_SOURCES = mod_amrwb.c bitshift.c amrwb_be.c
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else
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mod_amrwb_la_SOURCES = mod_amrwb.c
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endif
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mod_amrwb_la_CFLAGS = $(AM_CFLAGS)
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mod_amrwb_la_LIBADD = $(switch_builddir)/libfreeswitch.la
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mod_amrwb_la_LDFLAGS = -avoid-version -module -no-undefined -shared
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if HAVE_AMRWB
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BUILT_SOURCES= $(AMRWB_A)
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mod_amrwb_la_CFLAGS += -I$(AMRWB_DIR)
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mod_amrwb_la_LIBADD += $(AMRWB_A)
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# install AMRWB libraries: opencore-amrwb (decoder) and vo-amrwbenc (encoder) - check README
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mod_amrwb_la_CFLAGS += $(AMRWB_CFLAGS)
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mod_amrwb_la_LIBADD += $(AMRWB_LIBS)
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else
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mod_amrwb_la_CFLAGS += -DAMRWB_PASSTHROUGH
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endif
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@ -0,0 +1,29 @@
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Tested with mobile devices (VOLTE) :
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Samsung S6 Edge, iPhone, Samsung Note4, Samsung S6
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Tested with SIP clients :
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Linphone, pjsip
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INSTALL
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1. install AMRWB libraries
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libopencore-amrwb-dev - Adaptive Multi-Rate - Wideband speech codec - development files
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libopencore-amrwb0 - Adaptive Multi-Rate - Wideband speech codec - shared library
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libopencore-amrwb0-dbg - Adaptive Multi-Rate - Wideband speech codec - debugging symbols
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libvo-amrwbenc-dev - VisualOn AMR-WB encoder library (development files)
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libvo-amrwbenc0 - VisualOn AMR-WB encoder library
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vo-amrwbenc-dbg - VisualOn AMR-WB encoder library (debugging symbols)
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apt-get install libopencore-amrwb-dev libopencore-amrwb0 libopencore-amrwb0-dbg libvo-amrwbenc-dev libvo-amrwbenc0 vo-amrwbenc-dbg
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This was tested on Debian 8.
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2. copy files dec_if.h and enc_if.h in the directory with the sourcecode (mod_amrwb).
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cp /usr/include/opencore-amrwb/dec_if.h .
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cp /usr/include/vo-amrwbenc/enc_if.h .
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3. make, make install
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@ -0,0 +1,132 @@
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/*
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* Copyright (c) 2016, Athonet (www.athonet.com)
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* Dragos Oancea <dragos.oancea@athonet.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of the original author; nor the names of any contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __AMRWB_BE_H__
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#include "bitshift.h"
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#include "amrwb_be.h"
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extern const int switch_amrwb_frame_sizes[];
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/* Bandwidth Efficient AMR-WB */
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/* https://tools.ietf.org/html/rfc4867#page-17 */
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/* this works the same as in AMR NB*/
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extern switch_bool_t switch_amrwb_pack_be(unsigned char *shift_buf, int n)
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{
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uint8_t save_toc, ft;
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save_toc = shift_buf[1];
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/* we must convert OA TOC -> BE TOC */
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/* OA TOC
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0 1 2 3 4 5 6 7
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+-+-+-+-+-+-+-+-+
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|F| FT |Q|P1|P2|
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+-+-+-+-+-+-+-+-+
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F (1 bit): see definition in Section 4.3.2.
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FT (4 bits, unsigned integer): see definition in Section 4.3.2.
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Q (1 bit): see definition in Section 4.3.2.
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P bits: padding bits, MUST be set to zero, and MUST be ignored on reception.
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*/
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/* BE TOC:
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0 1 2 3 4 5
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+-+-+-+-+-+-+
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|F| FT |Q|
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+-+-+-+-+-+-+
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F = 0 , FT = XXXX , Q = 1
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eg: Frame Types (FT): ftp://www.3gpp.org/tsg_sa/TSG_SA/TSGS_04/Docs/PDF/SP-99253.pdf - table 1a
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*/
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ft = save_toc >> 3 ; /* drop Q, P1, P2 */
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ft &= ~(1 << 5); /* clear - will mark just 1 frame - bit F */
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/* we only encode one frame, so bit 0 of TOC will be 0 */
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shift_buf[0] |= (ft >> 1); /* first 3 bits of FT */
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switch_amr_array_lshift(6, shift_buf+1, n);
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/*make sure we clear the bit - it will be used as padding of the trailing byte */
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shift_buf[1] |= 1 << 6; /* set bit Q instead of P1 */
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if (( ft >> 0 ) & 1) {
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/* set last bit of TOC instead of P2 */
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shift_buf[1] |= 1 << 7;
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} else {
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/* reset last bit of TOC instead of P2 */
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shift_buf[1] &= ~(1 << 7);
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}
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return SWITCH_TRUE;
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}
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extern switch_bool_t switch_amrwb_unpack_be(unsigned char *encoded_buf, uint8_t *tmp, int encoded_len)
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{
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int framesz, index, ft;
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uint8_t shift_tocs[2] = {0x00, 0x00};
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uint8_t *shift_buf;
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memcpy(shift_tocs, encoded_buf, 2);
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/* shift for BE */
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switch_amr_array_lshift(4, shift_tocs, 2);
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ft = shift_tocs[0] >> 3;
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ft &= ~(1 << 5); /* Frame Type*/
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shift_buf = encoded_buf + 1; /* skip CMR */
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/* shift for BE */
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switch_amr_array_lshift(2, shift_buf, encoded_len - 1);
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/* get frame size */
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index = ((shift_tocs[0] >> 3) & 0x0f);
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if (index > 10) {
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return SWITCH_FALSE;
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}
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framesz = switch_amrwb_frame_sizes[index];
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tmp[0] = shift_tocs[0]; /* save TOC */
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memcpy(&tmp[1], shift_buf, framesz);
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return SWITCH_TRUE;
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}
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#endif
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
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*/
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@ -0,0 +1,55 @@
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/*
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* Copyright (c) 2016, Athonet (www.athonet.com)
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* Dragos Oancea <dragos.oancea@athonet.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of the original author; nor the names of any contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __AMRWB_BE_H__
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#define __AMRWB_BE_H__
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/* Bandwidth Efficient AMR-WB */
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extern switch_bool_t switch_amrwb_pack_be(unsigned char *shift_buf, int n);
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extern switch_bool_t switch_amrwb_unpack_be(unsigned char *encoded_buf, uint8_t *tmp, int encoded_len);
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#endif
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
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*/
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@ -0,0 +1,76 @@
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/*
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* Copyright (c) 2016, Athonet (www.athonet.com)
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* Paolo Missiaggia <paolo.missiaggia@athonet.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
|
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* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of the original author; nor the names of any contributors
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* may be used to endorse or promote products derived from this software
|
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* without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
|
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __BITSHIFT_H__
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#include "bitshift.h"
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/*
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* LEFT shift of an entire array of N bits, with N included between 0 and 8
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*/
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extern int switch_amr_array_lshift(uint8_t lshift, uint8_t *buf, int a_len)
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{
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int i = 0;
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uint8_t first_byte;
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uint8_t second_byte;
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if (!buf || !a_len)
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return (-1);
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if ((lshift < 0) || (lshift > 8))
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return (-1);
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first_byte = 0xFF >> lshift;
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second_byte = ~first_byte;
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for (i = 1; i < a_len; i++) {
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buf[i - 1] = ((buf[i - 1] & first_byte) << lshift) |
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((buf[i] & second_byte) >> (8 - lshift));
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}
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i--;
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buf[i] = ((buf[i] & first_byte) << lshift);
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return (0);
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}
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#endif
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
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*/
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@ -0,0 +1,57 @@
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/*
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* Copyright (c) 2016, Athonet (www.athonet.com)
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* Paolo Missiaggia <paolo.missiaggia@athonet.com>
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* All rights reserved.
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*
|
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
|
||||
* * Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* * Neither the name of the original author; nor the names of any contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
|
||||
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||||
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||||
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
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*/
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#ifndef __BITSHIFT_H__
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#define __BITSHIFT_H__
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#include "switch.h"
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/*
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* LEFT shift of an entire array of N bits, with N included between 0 and 8
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*/
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extern int switch_amr_array_lshift(uint8_t lshift, uint8_t *buf, int a_len);
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#endif
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
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*/
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@ -25,6 +25,9 @@
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*
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* Anthony Minessale II <anthm@freeswitch.org>
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* Brian K. West <brian@freeswitch.org>
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* Dragos Oancea <dragos.oancea@athonet.com>
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* Federico Favaro <federico.favaro@athonet.com>
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* Marco Sinibaldi <marco.sinibaldi@athonet.com>
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*
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* The amrwb codec itself is not distributed with this module.
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*
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|
|
@ -38,8 +41,11 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_amrwb_load);
|
|||
SWITCH_MODULE_DEFINITION(mod_amrwb, mod_amrwb_load, NULL, NULL);
|
||||
|
||||
#ifndef AMRWB_PASSTHROUGH
|
||||
#include "dec_if.h"
|
||||
#include "enc_if.h"
|
||||
#include "opencore-amrwb/dec_if.h" /*AMR-WB decoder API*/
|
||||
#include "vo-amrwbenc/enc_if.h" /*AMR-WB encoder API*/
|
||||
|
||||
#include "bitshift.h"
|
||||
#include "amrwb_be.h"
|
||||
|
||||
typedef enum {
|
||||
AMRWB_OPT_OCTET_ALIGN = (1 << 0),
|
||||
|
|
@ -71,14 +77,105 @@ struct amrwb_context {
|
|||
switch_byte_t ptime;
|
||||
switch_byte_t channels;
|
||||
switch_byte_t flags;
|
||||
int max_red;
|
||||
int debug;
|
||||
};
|
||||
|
||||
#define AMRWB_DEFAULT_BITRATE AMRWB_BITRATE_24K
|
||||
#define SWITCH_AMRWB_DEFAULT_BITRATE AMRWB_BITRATE_24K
|
||||
|
||||
static struct {
|
||||
switch_byte_t default_bitrate;
|
||||
switch_byte_t volte;
|
||||
switch_byte_t adjust_bitrate;
|
||||
int debug;
|
||||
} globals;
|
||||
|
||||
const int switch_amrwb_frame_sizes[] = {17, 23, 32, 36, 40, 46, 50, 58, 60, 5};
|
||||
|
||||
#define SWITCH_AMRWB_OUT_MAX_SIZE 61
|
||||
#define SWITCH_AMRWB_MODES 10 /* Silence Indicator (SID) included */
|
||||
|
||||
static switch_bool_t switch_amrwb_unpack_oa(unsigned char *buf, uint8_t *tmp, int encoded_data_len)
|
||||
{
|
||||
uint8_t *tocs;
|
||||
int index;
|
||||
int framesz;
|
||||
|
||||
buf++;/* CMR skip */
|
||||
tocs = buf;
|
||||
index = ((tocs[0]>>3) & 0xf);
|
||||
buf++; /* point to voice payload */
|
||||
|
||||
if (index > 10) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "AMRWB decoder (OA): Invalid TOC: 0x%x", index);
|
||||
return SWITCH_FALSE;
|
||||
}
|
||||
framesz = switch_amrwb_frame_sizes[index];
|
||||
if (framesz > encoded_data_len - 1) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "AMRWB decoder (OA): Invalid frame size: %d\n", framesz);
|
||||
return SWITCH_FALSE;
|
||||
}
|
||||
tmp[0] = tocs[0];
|
||||
memcpy(&tmp[1], buf, framesz);
|
||||
|
||||
return SWITCH_TRUE;
|
||||
}
|
||||
|
||||
static switch_bool_t switch_amrwb_pack_oa(unsigned char *shift_buf, int n)
|
||||
{
|
||||
/* Interleaving code here */
|
||||
return SWITCH_TRUE;
|
||||
}
|
||||
|
||||
static switch_bool_t switch_amrwb_info(unsigned char *encoded_buf, int encoded_data_len, int payload_format, char *print_text)
|
||||
{
|
||||
uint8_t *tocs;
|
||||
int framesz, index, not_last_frame, q, ft;
|
||||
uint8_t shift_tocs[2] = {0x00, 0x00};
|
||||
|
||||
if (!encoded_buf) {
|
||||
return SWITCH_FALSE;
|
||||
}
|
||||
|
||||
/* payload format can be OA (octed-aligned) or BE (bandwidth efficient)*/
|
||||
if (payload_format) {
|
||||
/* OA */
|
||||
encoded_buf++; /* CMR skip */
|
||||
tocs = encoded_buf;
|
||||
index = (tocs[0] >> 3) & 0x0f;
|
||||
if (index > SWITCH_AMRWB_MODES) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "AMRWB decoder (OA): Invalid TOC 0x%x\n", index);
|
||||
return SWITCH_FALSE;
|
||||
}
|
||||
framesz = switch_amrwb_frame_sizes[index];
|
||||
not_last_frame = (tocs[0] >> 7) & 1;
|
||||
q = (tocs[0] >> 2) & 1;
|
||||
ft = tocs[0] >> 3;
|
||||
ft &= ~(1 << 5); /* Frame Type */
|
||||
} else {
|
||||
/* BE */
|
||||
memcpy(shift_tocs, encoded_buf, 2);
|
||||
/* shift for BE */
|
||||
switch_amr_array_lshift(4, shift_tocs, 2);
|
||||
not_last_frame = (shift_tocs[0] >> 7) & 1;
|
||||
q = (shift_tocs[0] >> 2) & 1;
|
||||
ft = shift_tocs[0] >> 3;
|
||||
ft &= ~(1 << 5); /* Frame Type */
|
||||
index = (shift_tocs[0] >> 3) & 0x0f;
|
||||
if (index > SWITCH_AMRWB_MODES) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "AMRWB decoder (BE): Invalid TOC 0x%x\n", index);
|
||||
return SWITCH_FALSE;
|
||||
}
|
||||
framesz = switch_amrwb_frame_sizes[index];
|
||||
}
|
||||
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s (%s): FT: [0x%x] Q: [0x%x] Frame flag: [%d]\n",
|
||||
print_text, payload_format ? "OA":"BE", ft, q, not_last_frame);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%s (%s): AMRWB encoded voice payload sz: [%d] : | encoded_data_len: [%d]\n",
|
||||
print_text, payload_format ? "OA":"BE", framesz, encoded_data_len);
|
||||
|
||||
return SWITCH_TRUE;
|
||||
}
|
||||
#endif
|
||||
|
||||
static switch_status_t switch_amrwb_init(switch_codec_t *codec, switch_codec_flag_t flags, const switch_codec_settings_t *codec_settings)
|
||||
|
|
@ -103,6 +200,17 @@ static switch_status_t switch_amrwb_init(switch_codec_t *codec, switch_codec_fla
|
|||
return SWITCH_STATUS_FALSE;
|
||||
} else {
|
||||
|
||||
/* "mode" may mean two different things:
|
||||
* "Octed Aligned" or "Bandwidth Efficient" encoding mode ,
|
||||
* or the actual bitrate which is set with FMTP param "mode-set". */
|
||||
/* https://tools.ietf.org/html/rfc4867 */
|
||||
|
||||
/* set the default mode just in case there's no "mode-set" FMTP param */
|
||||
context->enc_mode = globals.default_bitrate;
|
||||
|
||||
/* octet-align = 0 - per RFC - if there's no `octet-align` FMTP value then BE is employed */
|
||||
switch_clear_flag(context, AMRWB_OPT_OCTET_ALIGN);
|
||||
|
||||
if (codec->fmtp_in) {
|
||||
argc = switch_separate_string(codec->fmtp_in, ';', argv, (sizeof(argv) / sizeof(argv[0])));
|
||||
for (x = 0; x < argc; x++) {
|
||||
|
|
@ -129,7 +237,7 @@ static switch_status_t switch_amrwb_init(switch_codec_t *codec, switch_codec_fla
|
|||
if (atoi(arg)) {
|
||||
switch_set_flag(context, AMRWB_OPT_ROBUST_SORTING);
|
||||
}
|
||||
} else if (!strcasecmp(data, "interveaving")) {
|
||||
} else if (!strcasecmp(data, "interleaving")) {
|
||||
if (atoi(arg)) {
|
||||
switch_set_flag(context, AMRWB_OPT_INTERLEAVING);
|
||||
}
|
||||
|
|
@ -141,23 +249,23 @@ static switch_status_t switch_amrwb_init(switch_codec_t *codec, switch_codec_fla
|
|||
context->channels = (switch_byte_t) atoi(arg);
|
||||
} else if (!strcasecmp(data, "maxptime")) {
|
||||
context->max_ptime = (switch_byte_t) atoi(arg);
|
||||
} else if (!strcasecmp(data, "max-red")) {
|
||||
context->max_red = atoi(arg);
|
||||
} else if (!strcasecmp(data, "mode-set")) {
|
||||
int y, m_argc;
|
||||
char *m_argv[9]; /* AMR-WB has 9 modes, AMR has 8 */
|
||||
char *m_argv[SWITCH_AMRWB_MODES-1]; /* AMRWB has 9 modes */
|
||||
m_argc = switch_separate_string(arg, ',', m_argv, (sizeof(m_argv) / sizeof(m_argv[0])));
|
||||
for (y = 0; y < m_argc; y++) {
|
||||
context->enc_modes |= (1 << atoi(m_argv[y]));
|
||||
context->enc_mode = atoi(m_argv[y]);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* init to default if there's no "mode-set" param */
|
||||
context->enc_mode = globals.default_bitrate;
|
||||
/* choose the highest mode (bitrate) for high audio quality from fmtp "mode-set" param */
|
||||
/* Note: mode-set = 0 is a valid mode */
|
||||
if (context->enc_modes) {
|
||||
/* choose the highest mode (bitrate) for high audio quality. */
|
||||
for (i = 8; i > -1; i--) {
|
||||
if (context->enc_modes & (1 << i)) {
|
||||
context->enc_mode = (switch_byte_t) i;
|
||||
|
|
@ -166,9 +274,17 @@ static switch_status_t switch_amrwb_init(switch_codec_t *codec, switch_codec_fla
|
|||
}
|
||||
}
|
||||
|
||||
if (globals.adjust_bitrate) {
|
||||
switch_set_flag(codec, SWITCH_CODEC_FLAG_HAS_ADJ_BITRATE);
|
||||
}
|
||||
|
||||
switch_snprintf(fmtptmp, sizeof(fmtptmp), "octet-align=%d; mode-set=%d", switch_test_flag(context, AMRWB_OPT_OCTET_ALIGN) ? 1 : 0,
|
||||
context->enc_mode);
|
||||
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);
|
||||
} 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);
|
||||
}
|
||||
codec->fmtp_out = switch_core_strdup(codec->memory_pool, fmtptmp);
|
||||
|
||||
context->encoder_state = NULL;
|
||||
|
|
@ -196,7 +312,7 @@ static switch_status_t switch_amrwb_destroy(switch_codec_t *codec)
|
|||
|
||||
if (context->encoder_state) {
|
||||
E_IF_exit(context->encoder_state);
|
||||
}
|
||||
}
|
||||
if (context->decoder_state) {
|
||||
D_IF_exit(context->decoder_state);
|
||||
}
|
||||
|
|
@ -217,14 +333,37 @@ static switch_status_t switch_amrwb_encode(switch_codec_t *codec,
|
|||
return SWITCH_STATUS_FALSE;
|
||||
#else
|
||||
struct amrwb_context *context = codec->private_info;
|
||||
int n;
|
||||
unsigned char *shift_buf = encoded_data;
|
||||
|
||||
if (!context) {
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
|
||||
*encoded_data_len = E_IF_encode(context->encoder_state, context->enc_mode, (int16_t *) decoded_data, (switch_byte_t *) encoded_data, 0);
|
||||
n = E_IF_encode(context->encoder_state, context->enc_mode, (int16_t *) decoded_data, (switch_byte_t *) encoded_data + 1, 0);
|
||||
if (n < 0) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "AMRWB encoder: E_IF_encode() ERROR!\n");
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
|
||||
/* set CMR + TOC (F + 3 bits of FT), 1111 = CMR: No mode request */
|
||||
*(switch_byte_t *) encoded_data = 0xf0;
|
||||
*encoded_data_len = n;
|
||||
|
||||
if (switch_test_flag(context, AMRWB_OPT_OCTET_ALIGN)) {
|
||||
switch_amrwb_pack_oa(shift_buf, n); /* the payload is OA as it
|
||||
comes out of the encoding function */
|
||||
*encoded_data_len = n + 1;
|
||||
} else {
|
||||
switch_amrwb_pack_be(shift_buf, n);
|
||||
}
|
||||
|
||||
if (globals.debug) {
|
||||
switch_amrwb_info(shift_buf, *encoded_data_len, switch_test_flag(context, AMRWB_OPT_OCTET_ALIGN) ? 1 : 0, "AMRWB encoder");
|
||||
}
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
|
|
@ -240,28 +379,159 @@ static switch_status_t switch_amrwb_decode(switch_codec_t *codec,
|
|||
return SWITCH_STATUS_FALSE;
|
||||
#else
|
||||
struct amrwb_context *context = codec->private_info;
|
||||
unsigned char *buf = encoded_data;
|
||||
uint8_t tmp[SWITCH_AMRWB_OUT_MAX_SIZE];
|
||||
|
||||
if (!context) {
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
|
||||
D_IF_decode(context->decoder_state, (unsigned char *) encoded_data, (int16_t *) decoded_data, 0);
|
||||
if (globals.debug) {
|
||||
switch_amrwb_info(buf, encoded_data_len, switch_test_flag(context, AMRWB_OPT_OCTET_ALIGN) ? 1 : 0, "AMRWB decoder");
|
||||
}
|
||||
|
||||
if (switch_test_flag(context, AMRWB_OPT_OCTET_ALIGN)) {
|
||||
/* Octed Aligned */
|
||||
if (!switch_amrwb_unpack_oa(buf, tmp, encoded_data_len)) {
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
} else {
|
||||
/* Bandwidth Efficient */
|
||||
if (!switch_amrwb_unpack_be(buf, tmp, encoded_data_len)) {
|
||||
return SWITCH_STATUS_FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
D_IF_decode(context->decoder_state, tmp, (int16_t *) decoded_data, 0);
|
||||
|
||||
*decoded_data_len = codec->implementation->decoded_bytes_per_packet;
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifndef AMRWB_PASSTHROUGH
|
||||
static switch_status_t switch_amrwb_control(switch_codec_t *codec,
|
||||
switch_codec_control_command_t cmd,
|
||||
switch_codec_control_type_t ctype,
|
||||
void *cmd_data,
|
||||
switch_codec_control_type_t atype,
|
||||
void *cmd_arg,
|
||||
switch_codec_control_type_t *rtype,
|
||||
void **ret_data)
|
||||
{
|
||||
struct amrwb_context *context = codec->private_info;
|
||||
|
||||
switch(cmd) {
|
||||
case SCC_DEBUG:
|
||||
{
|
||||
int32_t level = *((uint32_t *) cmd_data);
|
||||
context->debug = level;
|
||||
}
|
||||
break;
|
||||
case SCC_AUDIO_ADJUST_BITRATE:
|
||||
{
|
||||
const char *cmd = (const char *)cmd_data;
|
||||
|
||||
if (!strcasecmp(cmd, "increase")) {
|
||||
if (context->enc_mode < SWITCH_AMRWB_MODES - 1) {
|
||||
int mode_step = 2; /*this is the mode, not the actual bitrate*/
|
||||
context->enc_mode = context->enc_mode + mode_step;
|
||||
if (globals.debug || context->debug) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG,
|
||||
"AMRWB encoder: Adjusting mode to %d (increase)\n", context->enc_mode);
|
||||
}
|
||||
}
|
||||
} else if (!strcasecmp(cmd, "decrease")) {
|
||||
if (context->enc_mode > 0) {
|
||||
int mode_step = 2; /*this is the mode, not the actual bitrate*/
|
||||
context->enc_mode = context->enc_mode - mode_step;
|
||||
if (globals.debug || context->debug) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG,
|
||||
"AMRWB encoder: Adjusting mode to %d (decrease)\n", context->enc_mode);
|
||||
}
|
||||
}
|
||||
} else if (!strcasecmp(cmd, "default")) {
|
||||
context->enc_mode = globals.default_bitrate;
|
||||
if (globals.debug || context->debug) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG,
|
||||
"AMRWB encoder: Adjusting mode to %d (default)\n", context->enc_mode);
|
||||
}
|
||||
} else {
|
||||
/*minimum bitrate (AMRWB mode)*/
|
||||
context->enc_mode = 0;
|
||||
if (globals.debug || context->debug) {
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG,
|
||||
"AMRWB encoder: Adjusting mode to %d (minimum)\n", context->enc_mode);
|
||||
}
|
||||
}
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
#endif
|
||||
|
||||
static char *generate_fmtp(switch_memory_pool_t *pool , int octet_align)
|
||||
{
|
||||
char buf[256] = { 0 };
|
||||
|
||||
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "octet-align=%d; ", octet_align);
|
||||
|
||||
#ifndef AMRWB_PASSTHROUGH
|
||||
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "mode-set=%d; ", globals.default_bitrate);
|
||||
|
||||
if (globals.volte) {
|
||||
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "max-red=0; mode-change-capability=2; ");
|
||||
}
|
||||
#endif
|
||||
|
||||
if (end_of(buf) == ' ') {
|
||||
*(end_of_p(buf) - 1) = '\0';
|
||||
}
|
||||
|
||||
return switch_core_strdup(pool, buf);
|
||||
}
|
||||
|
||||
#ifndef AMRWB_PASSTHROUGH
|
||||
|
||||
#define AMRWB_DEBUG_SYNTAX "<on|off>"
|
||||
SWITCH_STANDARD_API(mod_amrwb_debug)
|
||||
{
|
||||
if (zstr(cmd)) {
|
||||
stream->write_function(stream, "-USAGE: %s\n", AMRWB_DEBUG_SYNTAX);
|
||||
} else {
|
||||
if (!strcasecmp(cmd, "on")) {
|
||||
globals.debug = 1;
|
||||
stream->write_function(stream, "AMRWB Debug: on\n");
|
||||
} else if (!strcasecmp(cmd, "off")) {
|
||||
globals.debug = 0;
|
||||
stream->write_function(stream, "AMRWB Debug: off\n");
|
||||
} else {
|
||||
stream->write_function(stream, "-USAGE: %s\n", AMRWB_DEBUG_SYNTAX);
|
||||
}
|
||||
}
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Registration */
|
||||
SWITCH_MODULE_LOAD_FUNCTION(mod_amrwb_load)
|
||||
{
|
||||
switch_codec_interface_t *codec_interface;
|
||||
char *default_fmtp_oa = NULL;
|
||||
char *default_fmtp_be = NULL;
|
||||
|
||||
#ifndef AMRWB_PASSTHROUGH
|
||||
switch_api_interface_t *commands_api_interface;
|
||||
char *cf = "amrwb.conf";
|
||||
switch_xml_t cfg, xml, settings, param;
|
||||
|
||||
memset(&globals, 0, sizeof(globals));
|
||||
globals.default_bitrate = AMRWB_DEFAULT_BITRATE;
|
||||
globals.default_bitrate = SWITCH_AMRWB_DEFAULT_BITRATE;
|
||||
|
||||
if ((xml = switch_xml_open_cfg(cf, &cfg, NULL))) {
|
||||
if ((settings = switch_xml_child(cfg, "settings"))) {
|
||||
|
|
@ -271,6 +541,13 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_amrwb_load)
|
|||
if (!strcasecmp(var, "default-bitrate")) {
|
||||
globals.default_bitrate = (switch_byte_t) atoi(val);
|
||||
}
|
||||
if (!strcasecmp(var, "volte")) {
|
||||
/* ETSI TS 126 236 compatibility: http://www.etsi.org/deliver/etsi_ts/126200_126299/126236/10.00.00_60/ts_126236v100000p.pdf */
|
||||
globals.volte = (switch_byte_t) atoi(val);
|
||||
}
|
||||
if (!strcasecmp(var, "adjust-bitrate")) {
|
||||
globals.adjust_bitrate = (switch_byte_t) atoi(val);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -279,10 +556,38 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_amrwb_load)
|
|||
/* connect my internal structure to the blank pointer passed to me */
|
||||
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
|
||||
|
||||
SWITCH_ADD_CODEC(codec_interface, "AMR-WB");
|
||||
#ifndef AMRWB_PASSTHROUGH
|
||||
SWITCH_ADD_API(commands_api_interface, "amrwb_debug", "Set AMR-WB Debug", mod_amrwb_debug, AMRWB_DEBUG_SYNTAX);
|
||||
|
||||
switch_console_set_complete("add amrwb_debug on");
|
||||
switch_console_set_complete("add amrwb_debug off");
|
||||
#else
|
||||
#define SWITCH_AMRWB_OUT_MAX_SIZE 0
|
||||
#endif
|
||||
|
||||
SWITCH_ADD_CODEC(codec_interface, "AMR-WB / Octet Aligned");
|
||||
|
||||
default_fmtp_oa = generate_fmtp(pool, 1);
|
||||
|
||||
switch_core_codec_add_implementation(pool, codec_interface,
|
||||
SWITCH_CODEC_TYPE_AUDIO, 100, "AMR-WB", "octet-align=0", 16000, 16000, 23850,
|
||||
20000, 320, 640, 0, 1, 1, switch_amrwb_init, switch_amrwb_encode, switch_amrwb_decode, switch_amrwb_destroy);
|
||||
SWITCH_CODEC_TYPE_AUDIO, 100, "AMR-WB", default_fmtp_oa,
|
||||
16000, 16000, 23850, 20000, 320, 640, SWITCH_AMRWB_OUT_MAX_SIZE, 1, 1,
|
||||
switch_amrwb_init, switch_amrwb_encode, switch_amrwb_decode, switch_amrwb_destroy);
|
||||
#ifndef AMRWB_PASSTHROUGH
|
||||
codec_interface->implementations->codec_control = switch_amrwb_control;
|
||||
#endif
|
||||
|
||||
SWITCH_ADD_CODEC(codec_interface, "AMR-WB / Bandwidth Efficient");
|
||||
|
||||
default_fmtp_be = generate_fmtp(pool, 0);
|
||||
|
||||
switch_core_codec_add_implementation(pool, codec_interface,
|
||||
SWITCH_CODEC_TYPE_AUDIO, 110, "AMR-WB", default_fmtp_be,
|
||||
16000, 16000, 23850, 20000, 320, 640, SWITCH_AMRWB_OUT_MAX_SIZE, 1, 1,
|
||||
switch_amrwb_init, switch_amrwb_encode, switch_amrwb_decode, switch_amrwb_destroy);
|
||||
#ifndef AMRWB_PASSTHROUGH
|
||||
codec_interface->implementations->codec_control = switch_amrwb_control;
|
||||
#endif
|
||||
/* indicate that the module should continue to be loaded */
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue