966 lines
32 KiB
C
966 lines
32 KiB
C
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/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Anthony Minessale II <anthm@freeswitch.org>
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* Michael Jerris <mike@jerris.com>
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* Paul D. Tinsley <pdt at jackhammer.org>
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* Christopher M. Rienzo <chris@rienzo.com>
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*
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*
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* switch_core_codec.c -- Main Core Library (codec functions)
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*
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*/
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#include <switch.h>
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#include "private/switch_core_pvt.h"
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static uint32_t CODEC_ID = 1;
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SWITCH_DECLARE(uint32_t) switch_core_codec_next_id(void)
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{
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return CODEC_ID++;
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}
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SWITCH_DECLARE(void) switch_core_session_unset_read_codec(switch_core_session_t *session)
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{
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switch_mutex_t *mutex = NULL;
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switch_mutex_lock(session->codec_read_mutex);
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if (session->read_codec) mutex = session->read_codec->mutex;
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if (mutex) switch_mutex_lock(mutex);
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session->real_read_codec = session->read_codec = NULL;
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session->raw_read_frame.codec = session->read_codec;
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session->raw_write_frame.codec = session->read_codec;
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session->enc_read_frame.codec = session->read_codec;
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session->enc_write_frame.codec = session->read_codec;
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if (mutex) switch_mutex_unlock(mutex);
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switch_mutex_unlock(session->codec_read_mutex);
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}
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SWITCH_DECLARE(void) switch_core_session_lock_codec_write(switch_core_session_t *session)
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{
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switch_mutex_lock(session->codec_write_mutex);
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}
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SWITCH_DECLARE(void) switch_core_session_unlock_codec_write(switch_core_session_t *session)
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{
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switch_mutex_unlock(session->codec_write_mutex);
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}
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SWITCH_DECLARE(void) switch_core_session_lock_codec_read(switch_core_session_t *session)
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{
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switch_mutex_lock(session->codec_read_mutex);
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}
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SWITCH_DECLARE(void) switch_core_session_unlock_codec_read(switch_core_session_t *session)
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{
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switch_mutex_unlock(session->codec_read_mutex);
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}
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SWITCH_DECLARE(void) switch_core_session_unset_write_codec(switch_core_session_t *session)
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{
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switch_mutex_t *mutex = NULL;
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switch_mutex_lock(session->codec_write_mutex);
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if (session->write_codec) mutex = session->write_codec->mutex;
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if (mutex) switch_mutex_lock(mutex);
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session->real_write_codec = session->write_codec = NULL;
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if (mutex) switch_mutex_unlock(mutex);
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switch_mutex_unlock(session->codec_write_mutex);
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}
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SWITCH_DECLARE(switch_status_t) switch_core_session_set_real_read_codec(switch_core_session_t *session, switch_codec_t *codec)
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{
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switch_event_t *event;
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switch_channel_t *channel = switch_core_session_get_channel(session);
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char tmp[30];
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switch_status_t status = SWITCH_STATUS_SUCCESS;
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int changed_read_codec = 0;
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switch_mutex_lock(session->codec_read_mutex);
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if (codec && (!codec->implementation || !switch_core_codec_ready(codec))) {
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codec = NULL;
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}
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if (codec) {
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/* set real_read_codec and read_codec */
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if (!session->real_read_codec) {
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switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Original read codec set to %s:%d\n",
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switch_channel_get_name(session->channel), codec->implementation->iananame, codec->implementation->ianacode);
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session->read_codec = session->real_read_codec = codec;
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changed_read_codec = 1;
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if (codec->implementation) {
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session->read_impl = *codec->implementation;
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session->real_read_impl = *codec->implementation;
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} else {
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memset(&session->read_impl, 0, sizeof(session->read_impl));
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}
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} else { /* replace real_read_codec */
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switch_codec_t *cur_codec;
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switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Original read codec replaced with %s:%d\n",
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switch_channel_get_name(session->channel), codec->implementation ? codec->implementation->iananame : "undefined", codec->implementation ? codec->implementation->ianacode : -1);
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/* Set real_read_codec to front of the list of read_codecs */
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cur_codec = session->read_codec;
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while (cur_codec != NULL) {
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if (cur_codec->next == session->real_read_codec) {
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cur_codec->next = codec;
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break;
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}
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cur_codec = cur_codec->next;
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}
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session->real_read_codec = codec;
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session->real_read_impl = *codec->implementation;
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/* set read_codec with real_read_codec if it no longer is ready */
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if (!switch_core_codec_ready(session->read_codec)) {
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session->read_codec = codec;
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changed_read_codec = 1;
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if (codec->implementation) {
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session->read_impl = *codec->implementation;
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session->real_read_impl = *codec->implementation;
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} else {
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memset(&session->read_impl, 0, sizeof(session->read_impl));
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}
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}
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}
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/* force media bugs to copy the read codec from the next frame */
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switch_thread_rwlock_wrlock(session->bug_rwlock);
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if (switch_core_codec_ready(&session->bug_codec)) {
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switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Destroying BUG Codec %s:%d\n",
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session->bug_codec.implementation->iananame, session->bug_codec.implementation->ianacode);
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switch_core_codec_destroy(&session->bug_codec);
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}
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switch_thread_rwlock_unlock(session->bug_rwlock);
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} else {
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status = SWITCH_STATUS_FALSE;
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goto end;
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}
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if (changed_read_codec && session->read_codec && session->read_impl.decoded_bytes_per_packet) {
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if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
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switch_channel_event_set_data(session->channel, event);
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switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "channel-read-codec-name", session->read_impl.iananame);
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switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-rate", "%d", session->read_impl.actual_samples_per_second);
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switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-bit-rate", "%d", session->read_impl.bits_per_second);
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if (session->read_impl.actual_samples_per_second != session->read_impl.samples_per_second) {
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switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-reported-read-codec-rate", "%d", session->read_impl.samples_per_second);
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}
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switch_event_fire(&event);
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}
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switch_channel_set_variable(channel, "read_codec", session->read_impl.iananame);
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switch_channel_set_variable(channel, "original_read_codec", session->read_impl.iananame);
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switch_snprintf(tmp, sizeof(tmp), "%d", session->read_impl.actual_samples_per_second);
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switch_channel_set_variable(channel, "read_rate", tmp);
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switch_channel_set_variable(channel, "original_read_rate", tmp);
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session->raw_read_frame.codec = session->read_codec;
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session->raw_write_frame.codec = session->read_codec;
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session->enc_read_frame.codec = session->read_codec;
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session->enc_write_frame.codec = session->read_codec;
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}
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end:
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if (session->read_codec) {
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switch_channel_set_flag(channel, CF_MEDIA_SET);
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}
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switch_mutex_unlock(session->codec_read_mutex);
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return status;
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}
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SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_codec(switch_core_session_t *session, switch_codec_t *codec)
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{
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switch_event_t *event;
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switch_channel_t *channel = switch_core_session_get_channel(session);
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char tmp[30];
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switch_status_t status = SWITCH_STATUS_SUCCESS;
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switch_mutex_lock(session->codec_read_mutex);
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if (codec && (!codec->implementation || !switch_core_codec_ready(codec))) {
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codec = NULL;
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}
|
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|
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if (codec) {
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if (!session->real_read_codec) {
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session->read_codec = session->real_read_codec = codec;
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if (codec->implementation) {
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session->read_impl = *codec->implementation;
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session->real_read_impl = *codec->implementation;
|
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} else {
|
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|
memset(&session->read_impl, 0, sizeof(session->read_impl));
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|
}
|
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} else {
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if (codec == session->read_codec) {
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goto end;
|
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|
}
|
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|
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Push codec %s:%d\n",
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switch_channel_get_name(session->channel), codec->implementation ? codec->implementation->iananame : "undefined", codec->implementation ? codec->implementation->ianacode : -1);
|
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|
codec->next = session->read_codec;
|
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|
session->read_codec = codec;
|
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|
if (codec->implementation) {
|
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|
session->read_impl = *codec->implementation;
|
||
|
} else {
|
||
|
memset(&session->read_impl, 0, sizeof(session->read_impl));
|
||
|
}
|
||
|
}
|
||
|
} else {
|
||
|
if (session->read_codec == session->real_read_codec) {
|
||
|
goto end;
|
||
|
}
|
||
|
|
||
|
if (session->read_codec->next && switch_core_codec_ready(session->read_codec->next)) {
|
||
|
switch_codec_t *old = session->read_codec;
|
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|
session->read_codec = session->read_codec->next;
|
||
|
if (session->read_codec->implementation) {
|
||
|
session->read_impl = *session->read_codec->implementation;
|
||
|
} else {
|
||
|
memset(&session->read_impl, 0, sizeof(session->read_impl));
|
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|
}
|
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|
old->next = NULL;
|
||
|
|
||
|
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s Restore previous codec %s:%d.\n",
|
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|
switch_channel_get_name(session->channel),
|
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|
session->read_impl.iananame ? session->read_impl.iananame : "N/A", session->read_impl.ianacode);
|
||
|
|
||
|
|
||
|
} else if (session->real_read_codec) {
|
||
|
session->read_codec = session->real_read_codec;
|
||
|
if (session->real_read_codec->implementation) {
|
||
|
session->read_impl = *session->real_read_codec->implementation;
|
||
|
} else {
|
||
|
memset(&session->read_impl, 0, sizeof(session->read_impl));
|
||
|
}
|
||
|
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Restore original codec.\n");
|
||
|
} else {
|
||
|
status = SWITCH_STATUS_FALSE;
|
||
|
goto end;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (!session->read_codec) {
|
||
|
status = SWITCH_STATUS_FALSE;
|
||
|
goto end;
|
||
|
}
|
||
|
|
||
|
if (session->read_impl.decoded_bytes_per_packet) {
|
||
|
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
|
||
|
switch_channel_event_set_data(session->channel, event);
|
||
|
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "channel-read-codec-name", session->read_impl.iananame);
|
||
|
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-rate", "%d", session->read_impl.actual_samples_per_second);
|
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|
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-read-codec-bit-rate", "%d", session->read_impl.bits_per_second);
|
||
|
if (session->read_impl.actual_samples_per_second != session->read_impl.samples_per_second) {
|
||
|
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-reported-read-codec-rate", "%d", session->read_impl.samples_per_second);
|
||
|
}
|
||
|
switch_event_fire(&event);
|
||
|
}
|
||
|
|
||
|
switch_channel_set_variable(channel, "read_codec", session->read_impl.iananame);
|
||
|
switch_snprintf(tmp, sizeof(tmp), "%d", session->read_impl.actual_samples_per_second);
|
||
|
switch_channel_set_variable(channel, "read_rate", tmp);
|
||
|
|
||
|
session->raw_read_frame.codec = session->read_codec;
|
||
|
session->raw_write_frame.codec = session->read_codec;
|
||
|
session->enc_read_frame.codec = session->read_codec;
|
||
|
session->enc_write_frame.codec = session->read_codec;
|
||
|
}
|
||
|
|
||
|
end:
|
||
|
|
||
|
if (session->read_codec) {
|
||
|
switch_channel_set_flag(channel, CF_MEDIA_SET);
|
||
|
}
|
||
|
|
||
|
switch_mutex_unlock(session->codec_read_mutex);
|
||
|
return status;
|
||
|
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_effective_read_codec(switch_core_session_t *session)
|
||
|
{
|
||
|
switch_codec_t *codec;
|
||
|
codec = session->read_codec;
|
||
|
return codec;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_read_codec(switch_core_session_t *session)
|
||
|
{
|
||
|
switch_codec_t *codec;
|
||
|
codec = session->real_read_codec ? session->real_read_codec : session->read_codec;
|
||
|
return codec;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_get_read_impl(switch_core_session_t *session, switch_codec_implementation_t *impp)
|
||
|
{
|
||
|
if (session->read_impl.codec_id) {
|
||
|
*impp = session->read_impl;
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
memset(impp, 0, sizeof(*impp));
|
||
|
impp->number_of_channels = 1;
|
||
|
return SWITCH_STATUS_FALSE;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_get_real_read_impl(switch_core_session_t *session, switch_codec_implementation_t *impp)
|
||
|
{
|
||
|
if (session->real_read_impl.codec_id) {
|
||
|
*impp = session->real_read_impl;
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
return switch_core_session_get_read_impl(session, impp);
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_get_write_impl(switch_core_session_t *session, switch_codec_implementation_t *impp)
|
||
|
{
|
||
|
if (session->write_impl.codec_id) {
|
||
|
*impp = session->write_impl;
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
memset(impp, 0, sizeof(*impp));
|
||
|
impp->number_of_channels = 1;
|
||
|
return SWITCH_STATUS_FALSE;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_get_video_read_impl(switch_core_session_t *session, switch_codec_implementation_t *impp)
|
||
|
{
|
||
|
if (session->video_read_impl.codec_id) {
|
||
|
*impp = session->video_read_impl;
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
memset(impp, 0, sizeof(*impp));
|
||
|
impp->number_of_channels = 1;
|
||
|
return SWITCH_STATUS_FALSE;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_get_video_write_impl(switch_core_session_t *session, switch_codec_implementation_t *impp)
|
||
|
{
|
||
|
if (session->video_write_impl.codec_id) {
|
||
|
*impp = session->video_write_impl;
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
memset(impp, 0, sizeof(*impp));
|
||
|
impp->number_of_channels = 1;
|
||
|
return SWITCH_STATUS_FALSE;
|
||
|
}
|
||
|
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_set_read_impl(switch_core_session_t *session, const switch_codec_implementation_t *impp)
|
||
|
{
|
||
|
session->read_impl = *impp;
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_set_write_impl(switch_core_session_t *session, const switch_codec_implementation_t *impp)
|
||
|
{
|
||
|
session->write_impl = *impp;
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_set_video_read_impl(switch_core_session_t *session, const switch_codec_implementation_t *impp)
|
||
|
{
|
||
|
session->video_read_impl = *impp;
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_set_video_write_impl(switch_core_session_t *session, const switch_codec_implementation_t *impp)
|
||
|
{
|
||
|
session->video_write_impl = *impp;
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_set_write_codec(switch_core_session_t *session, switch_codec_t *codec)
|
||
|
{
|
||
|
switch_event_t *event;
|
||
|
switch_channel_t *channel = switch_core_session_get_channel(session);
|
||
|
char tmp[30];
|
||
|
switch_status_t status = SWITCH_STATUS_SUCCESS;
|
||
|
|
||
|
switch_mutex_lock(session->codec_write_mutex);
|
||
|
|
||
|
if (!codec || !codec->implementation || !switch_core_codec_ready(codec)) {
|
||
|
if (session->real_write_codec) {
|
||
|
session->write_codec = session->real_write_codec;
|
||
|
session->write_impl = *session->real_write_codec->implementation;
|
||
|
session->real_write_codec = NULL;
|
||
|
} else {
|
||
|
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot set NULL codec!\n");
|
||
|
status = SWITCH_STATUS_FALSE;
|
||
|
goto end;
|
||
|
}
|
||
|
} else if (session->write_codec) {
|
||
|
if (session->real_write_codec) {
|
||
|
if (codec == session->real_write_codec) {
|
||
|
session->write_codec = codec;
|
||
|
session->write_impl = *codec->implementation;
|
||
|
session->real_write_codec = NULL;
|
||
|
} else {
|
||
|
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot double-set codec!\n");
|
||
|
status = SWITCH_STATUS_FALSE;
|
||
|
goto end;
|
||
|
}
|
||
|
} else {
|
||
|
session->real_write_codec = session->write_codec;
|
||
|
session->write_codec = codec;
|
||
|
session->write_impl = *codec->implementation;
|
||
|
}
|
||
|
} else {
|
||
|
session->write_codec = codec;
|
||
|
session->write_impl = *codec->implementation;
|
||
|
}
|
||
|
|
||
|
if (codec && session->write_impl.codec_id) {
|
||
|
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
|
||
|
switch_channel_event_set_data(session->channel, event);
|
||
|
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Channel-Write-Codec-Name", session->write_impl.iananame);
|
||
|
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Channel-Write-Codec-Rate", "%d", session->write_impl.actual_samples_per_second);
|
||
|
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Channel-Write-codec-bit-rate", "%d", session->write_impl.bits_per_second);
|
||
|
if (session->write_impl.actual_samples_per_second != session->write_impl.samples_per_second) {
|
||
|
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Channel-Reported-Write-Codec-Rate", "%d",
|
||
|
session->write_impl.actual_samples_per_second);
|
||
|
}
|
||
|
switch_event_fire(&event);
|
||
|
}
|
||
|
|
||
|
switch_channel_set_variable(channel, "write_codec", session->write_impl.iananame);
|
||
|
switch_snprintf(tmp, sizeof(tmp), "%d", session->write_impl.actual_samples_per_second);
|
||
|
switch_channel_set_variable(channel, "write_rate", tmp);
|
||
|
}
|
||
|
|
||
|
end:
|
||
|
switch_mutex_unlock(session->codec_write_mutex);
|
||
|
|
||
|
return status;
|
||
|
}
|
||
|
|
||
|
|
||
|
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_effective_write_codec(switch_core_session_t *session)
|
||
|
{
|
||
|
switch_codec_t *codec;
|
||
|
codec = session->write_codec;
|
||
|
|
||
|
return codec;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_write_codec(switch_core_session_t *session)
|
||
|
{
|
||
|
switch_codec_t *codec;
|
||
|
codec = session->real_write_codec ? session->real_write_codec : session->write_codec;
|
||
|
|
||
|
return codec;
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_set_video_read_codec(switch_core_session_t *session, switch_codec_t *codec)
|
||
|
{
|
||
|
switch_event_t *event;
|
||
|
switch_channel_t *channel = switch_core_session_get_channel(session);
|
||
|
char tmp[30];
|
||
|
switch_status_t status = SWITCH_STATUS_SUCCESS;
|
||
|
|
||
|
if (!codec || !codec->implementation || !switch_core_codec_ready(codec)) {
|
||
|
if (session->video_read_codec) {
|
||
|
session->video_read_codec = NULL;
|
||
|
status = SWITCH_STATUS_SUCCESS;
|
||
|
goto end;
|
||
|
}
|
||
|
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot set NULL codec!\n");
|
||
|
status = SWITCH_STATUS_FALSE;
|
||
|
goto end;
|
||
|
}
|
||
|
|
||
|
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
|
||
|
switch_channel_event_set_data(session->channel, event);
|
||
|
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "channel-video-read-codec-name", codec->implementation->iananame);
|
||
|
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-video-read-codec-rate", "%d", codec->implementation->actual_samples_per_second);
|
||
|
switch_event_fire(&event);
|
||
|
}
|
||
|
|
||
|
switch_channel_set_variable(channel, "video_read_codec", codec->implementation->iananame);
|
||
|
switch_snprintf(tmp, sizeof(tmp), "%d", codec->implementation->actual_samples_per_second);
|
||
|
switch_channel_set_variable(channel, "video_read_rate", tmp);
|
||
|
|
||
|
session->video_read_codec = codec;
|
||
|
if (codec->implementation) {
|
||
|
session->video_read_impl = *codec->implementation;
|
||
|
} else {
|
||
|
memset(&session->video_read_impl, 0, sizeof(session->video_read_impl));
|
||
|
}
|
||
|
end:
|
||
|
|
||
|
return status;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_video_read_codec(switch_core_session_t *session)
|
||
|
{
|
||
|
switch_codec_t *codec;
|
||
|
codec = session->video_read_codec;
|
||
|
|
||
|
return codec;
|
||
|
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_session_set_video_write_codec(switch_core_session_t *session, switch_codec_t *codec)
|
||
|
{
|
||
|
switch_event_t *event;
|
||
|
switch_channel_t *channel = switch_core_session_get_channel(session);
|
||
|
char tmp[30];
|
||
|
switch_status_t status = SWITCH_STATUS_SUCCESS;
|
||
|
if (!codec || !codec->implementation || !switch_core_codec_ready(codec)) {
|
||
|
if (session->video_write_codec) {
|
||
|
session->video_write_codec = NULL;
|
||
|
status = SWITCH_STATUS_SUCCESS;
|
||
|
goto end;
|
||
|
}
|
||
|
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Cannot set NULL codec!\n");
|
||
|
status = SWITCH_STATUS_FALSE;
|
||
|
goto end;
|
||
|
}
|
||
|
|
||
|
if (switch_event_create(&event, SWITCH_EVENT_CODEC) == SWITCH_STATUS_SUCCESS) {
|
||
|
switch_channel_event_set_data(session->channel, event);
|
||
|
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "channel-video-write-codec-name", codec->implementation->iananame);
|
||
|
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "channel-video-write-codec-rate", "%d", codec->implementation->actual_samples_per_second);
|
||
|
switch_event_fire(&event);
|
||
|
}
|
||
|
|
||
|
switch_channel_set_variable(channel, "video_write_codec", codec->implementation->iananame);
|
||
|
switch_snprintf(tmp, sizeof(tmp), "%d", codec->implementation->actual_samples_per_second);
|
||
|
switch_channel_set_variable(channel, "video_write_rate", tmp);
|
||
|
|
||
|
session->video_write_codec = codec;
|
||
|
session->video_write_impl = *codec->implementation;
|
||
|
|
||
|
end:
|
||
|
|
||
|
return status;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_codec_t *) switch_core_session_get_video_write_codec(switch_core_session_t *session)
|
||
|
{
|
||
|
switch_codec_t *codec;
|
||
|
codec = session->video_write_codec;
|
||
|
|
||
|
return codec;
|
||
|
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_parse_fmtp(const char *codec_name, const char *fmtp, uint32_t rate, switch_codec_fmtp_t *codec_fmtp)
|
||
|
{
|
||
|
switch_codec_interface_t *codec_interface;
|
||
|
switch_status_t status = SWITCH_STATUS_FALSE;
|
||
|
|
||
|
if (zstr(codec_name) || zstr(fmtp) || !codec_fmtp) {
|
||
|
return SWITCH_STATUS_FALSE;
|
||
|
}
|
||
|
|
||
|
memset(codec_fmtp, 0, sizeof(*codec_fmtp));
|
||
|
|
||
|
if ((codec_interface = switch_loadable_module_get_codec_interface(codec_name, NULL))) {
|
||
|
if (codec_interface->parse_fmtp) {
|
||
|
codec_fmtp->actual_samples_per_second = rate;
|
||
|
status = codec_interface->parse_fmtp(fmtp, codec_fmtp);
|
||
|
}
|
||
|
|
||
|
UNPROTECT_INTERFACE(codec_interface);
|
||
|
}
|
||
|
|
||
|
return status;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_reset(switch_codec_t *codec)
|
||
|
{
|
||
|
switch_assert(codec != NULL);
|
||
|
|
||
|
codec->implementation->destroy(codec);
|
||
|
codec->implementation->init(codec, codec->flags, NULL);
|
||
|
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_copy(switch_codec_t *codec, switch_codec_t *new_codec,
|
||
|
const switch_codec_settings_t *codec_settings, switch_memory_pool_t *pool)
|
||
|
{
|
||
|
uint32_t codec_rate;
|
||
|
switch_assert(codec != NULL);
|
||
|
switch_assert(new_codec != NULL);
|
||
|
|
||
|
codec_rate = !strcasecmp(codec->implementation->iananame, "g722")
|
||
|
? codec->implementation->samples_per_second : codec->implementation->actual_samples_per_second;
|
||
|
|
||
|
return switch_core_codec_init(new_codec,
|
||
|
codec->implementation->iananame,
|
||
|
codec->implementation->modname,
|
||
|
codec->fmtp_in,
|
||
|
codec_rate,
|
||
|
codec->implementation->microseconds_per_packet / 1000,
|
||
|
codec->implementation->number_of_channels,
|
||
|
codec->flags,
|
||
|
codec_settings,
|
||
|
pool);
|
||
|
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_init_with_bitrate(switch_codec_t *codec, const char *codec_name, const char *modname, const char *fmtp,
|
||
|
uint32_t rate, int ms, int channels, uint32_t bitrate, uint32_t flags,
|
||
|
const switch_codec_settings_t *codec_settings, switch_memory_pool_t *pool)
|
||
|
{
|
||
|
switch_codec_interface_t *codec_interface;
|
||
|
const switch_codec_implementation_t *iptr, *implementation = NULL;
|
||
|
|
||
|
switch_assert(codec != NULL);
|
||
|
switch_assert(codec_name != NULL);
|
||
|
|
||
|
memset(codec, 0, sizeof(*codec));
|
||
|
|
||
|
if (pool) {
|
||
|
codec->session = switch_core_memory_pool_get_data(pool, "__session");
|
||
|
}
|
||
|
|
||
|
if (strchr(codec_name, '.')) {
|
||
|
char *p = NULL;
|
||
|
codec_name = switch_core_strdup(pool, codec_name);
|
||
|
if ((p = strchr(codec_name, '.'))) {
|
||
|
*p++ = '\0';
|
||
|
modname = codec_name;
|
||
|
codec_name = p;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if ((codec_interface = switch_loadable_module_get_codec_interface(codec_name, modname)) == 0) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid codec %s!\n", codec_name);
|
||
|
return SWITCH_STATUS_GENERR;
|
||
|
}
|
||
|
|
||
|
if (!strncasecmp(codec_name, "PROXY", 5)) {
|
||
|
for (iptr = codec_interface->implementations; iptr; iptr = iptr->next) {
|
||
|
if (!channels || channels == iptr->number_of_channels) {
|
||
|
implementation = iptr;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
goto found;
|
||
|
}
|
||
|
|
||
|
/* If no specific codec interval is requested opt for 20ms above all else because lots of stuff assumes it */
|
||
|
if (!ms) {
|
||
|
for (iptr = codec_interface->implementations; iptr; iptr = iptr->next) {
|
||
|
uint32_t crate = !strcasecmp(codec_name, "g722") ? iptr->samples_per_second : iptr->actual_samples_per_second;
|
||
|
if ((!rate || rate == crate) && (!bitrate || bitrate == (uint32_t)iptr->bits_per_second) &&
|
||
|
(20 == (iptr->microseconds_per_packet / 1000)) && (!channels || channels == iptr->number_of_channels)) {
|
||
|
implementation = iptr;
|
||
|
goto found;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* Either looking for a specific interval or there was no interval specified and there wasn't one @20ms available */
|
||
|
for (iptr = codec_interface->implementations; iptr; iptr = iptr->next) {
|
||
|
uint32_t crate = !strcasecmp(codec_name, "g722") ? iptr->samples_per_second : iptr->actual_samples_per_second;
|
||
|
if ((!rate || rate == crate) && (!bitrate || bitrate == (uint32_t)iptr->bits_per_second) &&
|
||
|
(!ms || ms == (iptr->microseconds_per_packet / 1000)) && (!channels || channels == iptr->number_of_channels)) {
|
||
|
implementation = iptr;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
found:
|
||
|
|
||
|
if (implementation) {
|
||
|
switch_status_t status;
|
||
|
codec->codec_interface = codec_interface;
|
||
|
codec->implementation = implementation;
|
||
|
codec->flags = flags;
|
||
|
|
||
|
if (pool) {
|
||
|
codec->memory_pool = pool;
|
||
|
} else {
|
||
|
if ((status = switch_core_new_memory_pool(&codec->memory_pool)) != SWITCH_STATUS_SUCCESS) {
|
||
|
return status;
|
||
|
}
|
||
|
switch_set_flag(codec, SWITCH_CODEC_FLAG_FREE_POOL);
|
||
|
}
|
||
|
|
||
|
if (fmtp) {
|
||
|
codec->fmtp_in = switch_core_strdup(codec->memory_pool, fmtp);
|
||
|
}
|
||
|
|
||
|
implementation->init(codec, flags, codec_settings);
|
||
|
switch_mutex_init(&codec->mutex, SWITCH_MUTEX_NESTED, codec->memory_pool);
|
||
|
switch_set_flag(codec, SWITCH_CODEC_FLAG_READY);
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
} else {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Codec %s Exists but not at the desired implementation. %dhz %dms %dch\n",
|
||
|
codec_name, rate, ms, channels);
|
||
|
|
||
|
}
|
||
|
|
||
|
UNPROTECT_INTERFACE(codec_interface);
|
||
|
|
||
|
return SWITCH_STATUS_NOTIMPL;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_encode(switch_codec_t *codec,
|
||
|
switch_codec_t *other_codec,
|
||
|
void *decoded_data,
|
||
|
uint32_t decoded_data_len,
|
||
|
uint32_t decoded_rate,
|
||
|
void *encoded_data, uint32_t *encoded_data_len, uint32_t *encoded_rate, unsigned int *flag)
|
||
|
{
|
||
|
switch_status_t status;
|
||
|
|
||
|
switch_assert(codec != NULL);
|
||
|
switch_assert(encoded_data != NULL);
|
||
|
switch_assert(decoded_data != NULL);
|
||
|
|
||
|
if (!codec->implementation || !switch_core_codec_ready(codec)) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec is not initialized!\n");
|
||
|
return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
if (!switch_test_flag(codec, SWITCH_CODEC_FLAG_ENCODE)) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec encoder is not initialized!\n");
|
||
|
return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
if (codec->mutex) switch_mutex_lock(codec->mutex);
|
||
|
status = codec->implementation->encode(codec, other_codec, decoded_data, decoded_data_len,
|
||
|
decoded_rate, encoded_data, encoded_data_len, encoded_rate, flag);
|
||
|
if (codec->mutex) switch_mutex_unlock(codec->mutex);
|
||
|
|
||
|
return status;
|
||
|
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_decode(switch_codec_t *codec,
|
||
|
switch_codec_t *other_codec,
|
||
|
void *encoded_data,
|
||
|
uint32_t encoded_data_len,
|
||
|
uint32_t encoded_rate,
|
||
|
void *decoded_data, uint32_t *decoded_data_len, uint32_t *decoded_rate, unsigned int *flag)
|
||
|
{
|
||
|
switch_status_t status;
|
||
|
|
||
|
switch_assert(codec != NULL);
|
||
|
switch_assert(encoded_data != NULL);
|
||
|
switch_assert(decoded_data != NULL);
|
||
|
|
||
|
if (!codec->implementation || !switch_core_codec_ready(codec)) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Decode Codec is not initialized!\n");
|
||
|
return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
if (!switch_test_flag(codec, SWITCH_CODEC_FLAG_DECODE)) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec decoder is not initialized!\n");
|
||
|
return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
if (codec->implementation->encoded_bytes_per_packet) {
|
||
|
uint32_t frames = encoded_data_len / codec->implementation->encoded_bytes_per_packet / codec->implementation->number_of_channels;
|
||
|
|
||
|
if (frames && codec->implementation->decoded_bytes_per_packet * frames > *decoded_data_len) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Buffer size sanity check failed! edl:%u ebpp:%u fr:%u ddl:%u\n",
|
||
|
encoded_data_len, codec->implementation->encoded_bytes_per_packet, frames, *decoded_data_len);
|
||
|
*decoded_data_len = codec->implementation->decoded_bytes_per_packet;
|
||
|
memset(decoded_data, 255, *decoded_data_len);
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (codec->mutex) switch_mutex_lock(codec->mutex);
|
||
|
status = codec->implementation->decode(codec, other_codec, encoded_data, encoded_data_len, encoded_rate,
|
||
|
decoded_data, decoded_data_len, decoded_rate, flag);
|
||
|
if (codec->mutex) switch_mutex_unlock(codec->mutex);
|
||
|
|
||
|
return status;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_encode_video(switch_codec_t *codec, switch_frame_t *frame)
|
||
|
{
|
||
|
switch_status_t status = SWITCH_STATUS_FALSE;
|
||
|
|
||
|
switch_assert(codec != NULL);
|
||
|
|
||
|
if (!codec->implementation || !switch_core_codec_ready(codec)) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec is not initialized!\n");
|
||
|
return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
if (!switch_test_flag(codec, SWITCH_CODEC_FLAG_ENCODE)) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec encoder is not initialized!\n");
|
||
|
return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
if (codec->mutex) switch_mutex_lock(codec->mutex);
|
||
|
|
||
|
if (codec->implementation->encode_video) {
|
||
|
status = codec->implementation->encode_video(codec, frame);
|
||
|
|
||
|
if (status == SWITCH_STATUS_MORE_DATA) {
|
||
|
frame->flags |= SFF_SAME_IMAGE;
|
||
|
} else {
|
||
|
frame->flags &= ~SFF_SAME_IMAGE;
|
||
|
}
|
||
|
|
||
|
frame->packetlen = frame->datalen + 12;
|
||
|
}
|
||
|
|
||
|
if (codec->mutex) switch_mutex_unlock(codec->mutex);
|
||
|
|
||
|
return status;
|
||
|
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_decode_video(switch_codec_t *codec, switch_frame_t *frame)
|
||
|
{
|
||
|
switch_status_t status = SWITCH_STATUS_FALSE;
|
||
|
|
||
|
switch_assert(codec != NULL);
|
||
|
switch_assert(frame != NULL);
|
||
|
|
||
|
if (!codec->implementation || !switch_core_codec_ready(codec)) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Decode Codec is not initialized!\n");
|
||
|
return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
if (!switch_test_flag(codec, SWITCH_CODEC_FLAG_DECODE)) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec decoder is not initialized!\n");
|
||
|
return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
if (codec->mutex) switch_mutex_lock(codec->mutex);
|
||
|
|
||
|
if (codec->implementation->decode_video) {
|
||
|
status = codec->implementation->decode_video(codec, frame);
|
||
|
}
|
||
|
if (codec->mutex) switch_mutex_unlock(codec->mutex);
|
||
|
|
||
|
return status;
|
||
|
}
|
||
|
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_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)
|
||
|
{
|
||
|
|
||
|
switch_status_t status = SWITCH_STATUS_FALSE;
|
||
|
|
||
|
|
||
|
switch_assert(codec != NULL);
|
||
|
|
||
|
|
||
|
if (!codec->implementation || !switch_core_codec_ready(codec)) {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Codec is not initialized!\n");
|
||
|
abort();
|
||
|
//return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
|
||
|
if (codec->mutex) switch_mutex_lock(codec->mutex);
|
||
|
|
||
|
if (codec->implementation->codec_control) {
|
||
|
status = codec->implementation->codec_control(codec, cmd, ctype, cmd_data, atype, cmd_arg, rtype, ret_data);
|
||
|
}
|
||
|
|
||
|
if (codec->mutex) switch_mutex_unlock(codec->mutex);
|
||
|
|
||
|
|
||
|
return status;
|
||
|
}
|
||
|
|
||
|
SWITCH_DECLARE(switch_status_t) switch_core_codec_destroy(switch_codec_t *codec)
|
||
|
{
|
||
|
switch_mutex_t *mutex = NULL;
|
||
|
switch_memory_pool_t *pool = NULL;
|
||
|
int free_pool = 0;
|
||
|
|
||
|
switch_assert(codec != NULL);
|
||
|
mutex = codec->mutex;
|
||
|
pool = codec->memory_pool;
|
||
|
|
||
|
if (mutex) switch_mutex_lock(mutex);
|
||
|
|
||
|
if (switch_core_codec_ready(codec)) {
|
||
|
switch_clear_flag(codec, SWITCH_CODEC_FLAG_READY);
|
||
|
} else {
|
||
|
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Codec is not initialized!\n");
|
||
|
if (mutex) switch_mutex_unlock(mutex);
|
||
|
return SWITCH_STATUS_NOT_INITALIZED;
|
||
|
}
|
||
|
|
||
|
if (switch_test_flag(codec, SWITCH_CODEC_FLAG_FREE_POOL)) {
|
||
|
free_pool = 1;
|
||
|
}
|
||
|
|
||
|
codec->implementation->destroy(codec);
|
||
|
|
||
|
UNPROTECT_INTERFACE(codec->codec_interface);
|
||
|
|
||
|
if (mutex) switch_mutex_unlock(mutex);
|
||
|
|
||
|
if (free_pool) {
|
||
|
switch_core_destroy_memory_pool(&pool);
|
||
|
}
|
||
|
|
||
|
memset(codec, 0, sizeof(*codec));
|
||
|
|
||
|
return SWITCH_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
/* For Emacs:
|
||
|
* Local Variables:
|
||
|
* mode:c
|
||
|
* indent-tabs-mode:t
|
||
|
* tab-width:4
|
||
|
* c-basic-offset:4
|
||
|
* End:
|
||
|
* For VIM:
|
||
|
* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
|
||
|
*/
|