384 lines
11 KiB
C
384 lines
11 KiB
C
/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
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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 <anthmct@yahoo.com>
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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 <anthmct@yahoo.com>
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*
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* mod_fsv -- FS Video File Format
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*
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*/
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#include <switch.h>
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SWITCH_MODULE_LOAD_FUNCTION(mod_fsv_load);
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SWITCH_MODULE_DEFINITION(mod_fsv, mod_fsv_load, NULL, NULL);
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#define VID_BIT (1 << 31)
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#define VERSION 4201
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struct file_header {
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int32_t version;
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char video_codec_name[32];
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char video_fmtp[128];
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uint32_t audio_rate;
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uint32_t audio_ptime;
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switch_time_t created;
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};
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struct record_helper {
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switch_core_session_t *session;
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switch_mutex_t *mutex;
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int fd;
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int up;
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};
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static void *SWITCH_THREAD_FUNC record_video_thread(switch_thread_t *thread, void *obj)
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{
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struct record_helper *eh = obj;
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switch_core_session_t *session = eh->session;
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switch_channel_t *channel = switch_core_session_get_channel(session);
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switch_status_t status;
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switch_frame_t *read_frame;
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int bytes;
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eh->up = 1;
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while(switch_channel_ready(channel)) {
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status = switch_core_session_read_video_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
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if (!SWITCH_READ_ACCEPTABLE(status)) {
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break;
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}
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if (switch_test_flag(read_frame, SFF_CNG)) {
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continue;
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}
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bytes = read_frame->packetlen |VID_BIT;
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switch_mutex_lock(eh->mutex);
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if (write(eh->fd, &bytes, sizeof(bytes)) != (int)sizeof(bytes)) {
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switch_mutex_unlock(eh->mutex);
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break;
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}
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if (write(eh->fd, read_frame->packet, read_frame->packetlen) != (int)read_frame->packetlen) {
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switch_mutex_unlock(eh->mutex);
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break;
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}
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switch_mutex_unlock(eh->mutex);
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switch_core_session_write_video_frame(session, read_frame, SWITCH_IO_FLAG_NONE, 0);
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}
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eh->up = 0;
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return NULL;
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}
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SWITCH_STANDARD_APP(record_fsv_function)
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{
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switch_status_t status;
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switch_frame_t *read_frame;
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switch_channel_t *channel = switch_core_session_get_channel(session);
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struct record_helper eh = {0};
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switch_thread_t *thread;
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switch_threadattr_t *thd_attr = NULL;
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int fd;
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switch_mutex_t *mutex = NULL;
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switch_codec_t codec, *read_codec, *vid_codec;
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switch_channel_answer(channel);
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if ((fd = open((char *)data, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)) < 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error opening file %s\n", (char *) data);
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return;
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}
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switch_channel_answer(channel);
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read_codec = switch_core_session_get_read_codec(session);
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if (switch_core_codec_init(&codec,
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"L16",
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NULL,
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read_codec->implementation->samples_per_second,
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read_codec->implementation->microseconds_per_frame / 1000,
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1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
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NULL, switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Audio Codec Activation Success\n");
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} else {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Audio Codec Activation Fail\n");
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goto end;
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}
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switch_core_session_set_read_codec(session, &codec);
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if (switch_channel_test_flag(channel, CF_VIDEO)) {
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struct file_header h;
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memset(&h, 0, sizeof(h));
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vid_codec = switch_core_session_get_video_read_codec(session);
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h.version = VERSION;
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h.created = switch_timestamp_now();
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switch_set_string(h.video_codec_name, vid_codec->implementation->iananame);
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if (vid_codec->fmtp_in) {
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switch_set_string(h.video_fmtp, vid_codec->fmtp_in);
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}
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h.audio_rate = read_codec->implementation->samples_per_second;
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h.audio_ptime = read_codec->implementation->microseconds_per_frame / 1000;
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if (write(fd, &h, sizeof(h)) != sizeof(h)) {
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goto end;
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}
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switch_mutex_init(&mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
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eh.mutex = mutex;
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eh.fd = fd;
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eh.session = session;
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switch_threadattr_create(&thd_attr, switch_core_session_get_pool(session));
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switch_threadattr_detach_set(thd_attr, 1);
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switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE);
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switch_thread_create(&thread, thd_attr, record_video_thread, &eh, switch_core_session_get_pool(session));
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}
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while(switch_channel_ready(channel)) {
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status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
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if (!SWITCH_READ_ACCEPTABLE(status)) {
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break;
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}
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if (switch_test_flag(read_frame, SFF_CNG)) {
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continue;
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}
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if (mutex) {
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switch_mutex_lock(mutex);
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}
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if (write(fd, &read_frame->datalen, sizeof(read_frame->datalen)) != sizeof(read_frame->datalen)) {
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if (mutex) {
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switch_mutex_unlock(mutex);
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}
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break;
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}
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if (write(fd, read_frame->data, read_frame->datalen) != (int)read_frame->datalen) {
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if (mutex) {
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switch_mutex_unlock(mutex);
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}
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break;
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}
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if (mutex) {
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switch_mutex_unlock(mutex);
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}
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}
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end:
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if (eh.up) {
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while(eh.up) {
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switch_yield(1000);
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}
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}
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switch_core_session_set_read_codec(session, read_codec);
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switch_core_codec_destroy(&codec);
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}
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SWITCH_STANDARD_APP(play_fsv_function)
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{
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switch_channel_t *channel = switch_core_session_get_channel(session);
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switch_frame_t write_frame = {0}, vid_frame = {0};
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int fd = -1;
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int bytes;
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switch_codec_t *read_codec = NULL, codec = {0}, vid_codec = {0}, *read_vid_codec;
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unsigned char *aud_buffer;
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unsigned char *vid_buffer;
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struct file_header h;
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uint32_t ts = 0, last = 0;
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switch_timer_t timer = {0};
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switch_payload_t pt = 0;
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aud_buffer = switch_core_session_alloc(session, SWITCH_RECOMMENDED_BUFFER_SIZE);
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vid_buffer = switch_core_session_alloc(session, SWITCH_RECOMMENDED_BUFFER_SIZE);
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if ((fd = open((char *)data, O_RDONLY)) < 0) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error opening file %s\n", (char *) data);
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return;
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}
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if (read(fd, &h, sizeof(h)) != sizeof(h)) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "error reading file header\n");
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goto end;
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}
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if (h.version != VERSION) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "file version does not match!\n");
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goto end;
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}
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switch_channel_set_variable(channel, "sip_force_video_fmtp", h.video_fmtp);
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switch_channel_answer(channel);
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if ((read_vid_codec = switch_core_session_get_video_read_codec(session))) {
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pt = read_vid_codec->agreed_pt;
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}
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write_frame.codec = &codec;
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write_frame.data = aud_buffer;
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write_frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE;
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vid_frame.codec = &vid_codec;
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vid_frame.packet = vid_buffer;
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vid_frame.data = vid_buffer + 12;
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vid_frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE - 12;
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switch_set_flag((&vid_frame), SFF_RAW_RTP);
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read_codec = switch_core_session_get_read_codec(session);
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if (switch_core_timer_init(&timer, "soft", read_codec->implementation->microseconds_per_frame / 1000,
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read_codec->implementation->samples_per_frame, switch_core_session_get_pool(session)) != SWITCH_STATUS_SUCCESS) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "timer Activation Fail\n");
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goto end;
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}
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if (switch_core_codec_init(&codec,
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"L16",
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NULL,
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h.audio_rate,
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h.audio_ptime,
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1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
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NULL, switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Audio Codec Activation Success\n");
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} else {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Audio Codec Activation Fail\n");
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goto end;
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}
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if (switch_core_codec_init(&vid_codec,
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h.video_codec_name,
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NULL,
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0,
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0,
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1, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
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NULL, switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS) {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Video Codec Activation Success\n");
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} else {
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switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Video Codec Activation Fail\n");
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goto end;
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}
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switch_core_session_set_read_codec(session, &codec);
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while(switch_channel_ready(channel)) {
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if (read(fd, &bytes, sizeof(bytes)) != sizeof(bytes)) {
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break;
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}
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if (bytes & VID_BIT) {
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switch_rtp_hdr_t *hdr = vid_frame.packet;
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bytes &= ~VID_BIT;
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if ((vid_frame.packetlen = read(fd, vid_frame.packet, bytes)) != (uint32_t)bytes) {
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break;
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}
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ts = ntohl(hdr->ts);
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if (pt) {
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hdr->pt = pt;
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}
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if (switch_channel_test_flag(channel, CF_VIDEO)) {
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switch_core_session_write_video_frame(session, &vid_frame, SWITCH_IO_FLAG_NONE, 0);
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}
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if (ts && last && last != ts) {
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switch_yield(1000);
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}
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last = ts;
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} else {
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if (bytes > (int)write_frame.buflen) {
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bytes = write_frame.buflen;
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}
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if ((write_frame.datalen = read(fd, write_frame.data, bytes)) <= 0) {
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break;
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}
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switch_core_session_write_frame(session, &write_frame, SWITCH_IO_FLAG_NONE, 0);
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switch_core_timer_next(&timer);
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}
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}
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end:
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if (timer.interval) {
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switch_core_timer_destroy(&timer);
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}
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if (read_codec) {
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switch_core_session_set_read_codec(session, read_codec);
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}
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if (codec.implementation) {
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switch_core_codec_destroy(&codec);
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}
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if (vid_codec.implementation) {
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switch_core_codec_destroy(&vid_codec);
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}
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if (fd > -1) {
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close(fd);
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}
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}
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SWITCH_MODULE_LOAD_FUNCTION(mod_fsv_load)
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{
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switch_application_interface_t *app_interface;
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/* connect my internal structure to the blank pointer passed to me */
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*module_interface = switch_loadable_module_create_module_interface(pool, modname);
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SWITCH_ADD_APP(app_interface, "play_fsv", "play an fsv file", "play an fsv file", play_fsv_function, "<file>", SAF_NONE);
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SWITCH_ADD_APP(app_interface, "record_fsv", "record an fsv file", "record an fsv file", record_fsv_function, "<file>", SAF_NONE);
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/* indicate that the module should continue to be loaded */
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return SWITCH_STATUS_SUCCESS;
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}
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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 expandtab:
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*/
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