Skip to content

F
freeswitch
提交 ae8ddfd4 authored 作者: Seven Du's avatar Seven Du 提交者： Michael Jerris
浏览文件
操作

FS-7518: add mod_mp4v2 

libmp4v2-dev is required for this mod
上级 39bd8adb
隐藏空白字符变更
内嵌 并排
正在显示 包含 1014 行增加 和 0 行删除
build/modules.conf.in
浏览文件 @ ae8ddfd4
...@@ -28,6 +28,7 @@ applications/mod_httapi ...@@ -28,6 +28,7 @@ applications/mod_httapi
#applications/mod_memcache #applications/mod_memcache
#applications/mod_mongo #applications/mod_mongo
#applications/mod_mp4 #applications/mod_mp4
#applications/mod_mp4v2
#applications/mod_nibblebill #applications/mod_nibblebill
#applications/mod_oreka #applications/mod_oreka
#applications/mod_osp #applications/mod_osp
......
configure.ac
浏览文件 @ ae8ddfd4
...@@ -1537,6 +1537,7 @@ AC_CONFIG_FILES([Makefile ...@@ -1537,6 +1537,7 @@ AC_CONFIG_FILES([Makefile
src/mod/applications/mod_memcache/Makefile src/mod/applications/mod_memcache/Makefile
src/mod/applications/mod_mongo/Makefile src/mod/applications/mod_mongo/Makefile
src/mod/applications/mod_mp4/Makefile src/mod/applications/mod_mp4/Makefile
src/mod/applications/mod_mp4v2/Makefile
src/mod/applications/mod_nibblebill/Makefile src/mod/applications/mod_nibblebill/Makefile
src/mod/applications/mod_oreka/Makefile src/mod/applications/mod_oreka/Makefile
src/mod/applications/mod_osp/Makefile src/mod/applications/mod_osp/Makefile
......
src/mod/applications/mod_mp4v2/Makefile.am 0 → 100644
浏览文件 @ ae8ddfd4
include $(top_srcdir)/build/modmake.rulesam
MODNAME=mod_mp4v2
mod_LTLIBRARIES = mod_mp4v2.la
mod_mp4v2_la_SOURCES = mod_mp4v2.c
mod_mp4v2_la_CFLAGS = $(AM_CFLAGS)
mod_mp4v2_la_LIBADD = $(switch_builddir)/libfreeswitch.la
mod_mp4v2_la_LDFLAGS = -avoid-version -module -no-undefined -shared -lmp4v2
src/mod/applications/mod_mp4v2/mod_mp4v2.c 0 → 100644
浏览文件 @ ae8ddfd4
/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005-2015, Anthony Minessale II <anthm@freeswitch.org>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Seven Du <dujinfang@gmail.com>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
*
* mod_mp4v2 -- MP4 File Format for FreeSWITCH
*
*
* status: For write, codec is hard coded to PCMU for audio and H264 for video
* tested with lib mp4v2-2.0.0
* Read from mp4 is not supported yet.
*/
#include <switch.h>
#include <mp4v2/mp4v2.h>
#define TIMESCALE 1000
#define SampleLenFieldSize 4
// #define HAS_SPS_PARSER
SWITCH_MODULE_LOAD_FUNCTION(mod_mp4v2_load);
SWITCH_MODULE_DEFINITION(mod_mp4v2, mod_mp4v2_load, NULL, NULL);
struct record_helper {
switch_core_session_t *session;
switch_mutex_t *mutex;
MP4FileHandle fd;
MP4TrackId video_track;
MP4TrackId audio_track;
switch_timer_t timer;
int up;
uint64_t last_pts;
};
#ifdef HAS_SPS_PARSER
#include "bs.h"
static void parse_sps_video_size(uint8_t *sps_buffer, int len, int *width, int *height)
{
sps_t sps = { 0 };
bs_t b = { 0 };
bs_init(&b, sps_buffer, len);
read_sps(&sps, &b);
*width = ((sps.pic_width_in_mbs_minus1 +1)*16) - sps.frame_crop_left_offset*2 - sps.frame_crop_right_offset*2;
*height= ((2 - sps.frame_mbs_only_flag)* (sps.pic_height_in_map_units_minus1 +1) * 16) - (sps.frame_crop_top_offset * 2) - (sps.frame_crop_bottom_offset * 2);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "H264 Profile: %d size: %dx%d\n", sps.profile_idc, *width, *height);
}
#else
// use hardcoded value
static void parse_sps_video_size(uint8_t *sps_buffer, int len, int *width, int *height)
{
*width = 1280;
*height = 720;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "We have no idea about the video size without decoding the video or actually parse the SPS, using hardcoded %dx%d\n", *width, *height);
}
#endif
static void init_video_track(MP4FileHandle mp4, MP4TrackId *video, switch_frame_t *frame)
{
int width = 0;
int height = 0;
uint8_t *sps_buffer = frame->data;
uint32_t sps_bytes = frame->datalen;
sps_buffer++;
if (frame->img) {
width = frame->img->d_w;
height = frame->img->d_h;
} else {
parse_sps_video_size(sps_buffer, sps_bytes, &width, &height);
}
MP4SetTimeScale(mp4, TIMESCALE);
*video = MP4AddH264VideoTrack(mp4, TIMESCALE, MP4_INVALID_DURATION, width, height, *(sps_buffer), *(sps_buffer+1), *(sps_buffer+2), SampleLenFieldSize - 1);
if (*video == MP4_INVALID_TRACK_ID) {
return;
}
MP4AddH264SequenceParameterSet(mp4, *video, --sps_buffer, sps_bytes);
/*
MP4SetVideoProfileLevel sets the minumum profile/level of MPEG-4 video support necessary to render the contents of the file.
ISO/IEC 14496-1:2001 MPEG-4 Systems defines the following values:
0x00 Reserved
0x01 Simple Profile @ Level 3
0x02 Simple Profile @ Level 2
0x03 Simple Profile @ Level 1
0x04 Simple Scalable Profile @ Level 2
0x05 Simple Scalable Profile @ Level 1
0x06 Core Profile @ Level 2
0x07 Core Profile @ Level 1
0x08 Main Profile @ Level 4
0x09 Main Profile @ Level 3
0x0A Main Profile @ Level 2
0x0B N-Bit Profile @ Level 2
0x0C Hybrid Profile @ Level 2
0x0D Hybrid Profile @ Level 1
0x0E Basic Animated Texture @ Level 2
0x0F Basic Animated Texture @ Level 1
0x10 Scalable Texture @ Level 3
0x11 Scalable Texture @ Level 2
0x12 Scalable Texture @ Level 1
0x13 Simple Face Animation @ Level 2
0x14 Simple Face Animation @ Level 1
0x15-0x7F Reserved
0x80-0xFD User private
0xFE No audio profile specified
0xFF No audio required
*/
MP4SetVideoProfileLevel(mp4, 0x7F);
}
static void record_video_thread(switch_core_session_t *session, void *obj)
{
struct record_helper *eh = obj;
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_status_t status;
switch_frame_t *read_frame;
uint bytes;
MP4FileHandle mp4;
MP4TrackId video;
unsigned char buf[40960];
int len = 0;
uint8_t iframe = 0;
uint32_t *size = (uint32_t *)buf;
uint8_t *hdr = NULL;
uint8_t fragment_type;
uint8_t nal_type;
uint8_t start_bit;
uint8_t *sps = NULL;
// uint8_t *pps = NULL;
int sps_set = 0;
int pps_set = 0;
eh->up = 1;
mp4 = eh->fd;
/* Tell the channel to request a fresh vid frame */
switch_core_session_request_video_refresh(session);
len = 0;
while (switch_channel_ready(channel) && eh->up) {
status = switch_core_session_read_video_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
if (!SWITCH_READ_ACCEPTABLE(status)) {
break;
}
if (switch_test_flag(read_frame, SFF_CNG)) {
continue;
}
bytes = read_frame->datalen;
if (bytes > 2000) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "xxxxxxxx buffer overflow\n");
continue;
}
hdr = read_frame->data;
fragment_type = hdr[0] & 0x1f;
nal_type = hdr[1] & 0x1f;
start_bit = hdr[1] & 0x80;
iframe = (((fragment_type == 28 || fragment_type == 29) && nal_type == 5 && start_bit == 128) || fragment_type == 5 || fragment_type ==7 || fragment_type ==8) ? 1 : 0;
#if 0
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "%02x %02x %02x | len:%d m:%d st:%d i:%d\n", hdr[0], hdr[1], hdr[2], bytes, read_frame->m, start_bit, iframe);
#endif
// echo back
switch_core_session_write_video_frame(session, read_frame, SWITCH_IO_FLAG_NONE, 0);
if (fragment_type == 7 && !sps_set) { //sps
sps = malloc(bytes);
memcpy(sps, read_frame->data, bytes);
sps_set = 1;
switch_mutex_lock(eh->mutex);
init_video_track(mp4, &video, read_frame);
if (video == MP4_INVALID_TRACK_ID) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error add video track!\n");
switch_mutex_unlock(eh->mutex);
goto end;
}
switch_mutex_unlock(eh->mutex);
continue;
} else if (fragment_type == 8 && !pps_set) { //pps
switch_mutex_lock(eh->mutex);
MP4AddH264PictureParameterSet(mp4, video, read_frame->data, bytes);
switch_mutex_unlock(eh->mutex);
pps_set = 1;
// continue;
}
if ((!sps_set) && (!pps_set)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Waiting for SPS/PPS\n");
// continue;
}
len += 4 + read_frame->datalen;
if (len > 40960) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "buffer overflow!!!! %d\n", len);
len = 0;
size = (uint32_t *)buf;
continue;
}
*size = htonl(read_frame->datalen);
memcpy(size + 1, read_frame->data, read_frame->datalen);
size = (uint32_t *)((uint8_t *)size + 4 + read_frame->datalen);
if (read_frame->m) {
int duration = 0;
switch_mutex_lock(eh->mutex);
if (!eh->timer.interval) {
switch_core_timer_init(&eh->timer, "soft", 1, 1, switch_core_session_get_pool(session));
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "init timer\n");
} else {
switch_core_timer_sync(&eh->timer);
}
switch_mutex_unlock(eh->mutex);
if (eh->last_pts) {
duration = eh->timer.samplecount - eh->last_pts;
}
eh->last_pts = eh->timer.samplecount;
switch_mutex_lock(eh->mutex);
MP4WriteSample(mp4, video, buf, len, duration, 0, iframe);
switch_mutex_unlock(eh->mutex);
len = 0;
size = (uint32_t *)buf;
}
}
end:
eh->up = 0;
return;
}
SWITCH_STANDARD_APP(record_mp4_function)
{
switch_status_t status;
switch_frame_t *read_frame;
switch_channel_t *channel = switch_core_session_get_channel(session);
struct record_helper eh = { 0 };
MP4FileHandle fd;
MP4TrackId audio;
switch_mutex_t *mutex = NULL;
switch_codec_implementation_t read_impl = { 0 };
switch_dtmf_t dtmf = { 0 };
int count = 0, sanity = 30;
switch_codec_t codec;
int duration = 0;
switch_event_t *event;
memset(&codec, 0, sizeof(switch_codec_t));
switch_channel_answer(channel);
switch_core_session_get_read_impl(session, &read_impl);
switch_channel_set_variable(channel, SWITCH_PLAYBACK_TERMINATOR_USED, "");
while (switch_channel_up(channel) && !switch_channel_test_flag(channel, CF_VIDEO)) {
switch_yield(10000);
if (count) count--;
if (count == 0) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "%s waiting for video.\n", switch_channel_get_name(channel));
count = 100;
if (!--sanity) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s timeout waiting for video.\n",
switch_channel_get_name(channel));
switch_channel_set_variable(channel, SWITCH_CURRENT_APPLICATION_RESPONSE_VARIABLE, "Got timeout while waiting for video");
return;
}
}
}
if (!switch_channel_ready(channel)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_CRIT, "%s not ready.\n", switch_channel_get_name(channel));
switch_channel_set_variable(channel, SWITCH_CURRENT_APPLICATION_RESPONSE_VARIABLE, "Channel not ready");
return;
}
if ((fd = MP4CreateEx((char*)data, 0, 1, 1, NULL, 0, NULL, 0)) == MP4_INVALID_FILE_HANDLE) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_CRIT, "Error opening file %s\n", (char *) data);
switch_channel_set_variable(channel, SWITCH_CURRENT_APPLICATION_RESPONSE_VARIABLE, "Got error while opening file");
return;
}
audio = MP4AddULawAudioTrack(fd, read_impl.samples_per_second);
MP4SetTrackIntegerProperty(fd, audio, "mdia.minf.stbl.stsd.ulaw.channels", read_impl.number_of_channels);
MP4SetTrackIntegerProperty(fd, audio, "mdia.minf.stbl.stsd.ulaw.sampleSize", 8);
// audio = MP4AddAACAudioTrack(fd, 8000);
// audio = MP4AddAudioTrack(fd, 8000, MP4_INVALID_DURATION, MP4_MPEG4_AUDIO_TYPE);
// MP4SetTrackIntegerProperty(fd, audio, "mdia.minf.stbl.stsd.aac.channels", 1);
// MP4SetTrackIntegerProperty(fd, audio, "mdia.minf.stbl.stsd.aac.sampleSize", 8);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "ms: %d, ts: %d\n", read_impl.microseconds_per_packet, read_impl.samples_per_second /(read_impl.microseconds_per_packet / 1000) / 2);
/* MP4SetAudioProfileLevel sets the minumum profile/level of MPEG-4 audio support necessary to render the contents of the file.
ISO/IEC 14496-1:2001 MPEG-4 Systems defines the following values:
0x00 Reserved
0x01 Main Profile @ Level 1
0x02 Main Profile @ Level 2
0x03 Main Profile @ Level 3
0x04 Main Profile @ Level 4
0x05 Scalable Profile @ Level 1
0x06 Scalable Profile @ Level 2
0x07 Scalable Profile @ Level 3
0x08 Scalable Profile @ Level 4
0x09 Speech Profile @ Level 1
0x0A Speech Profile @ Level 2
0x0B Synthesis Profile @ Level 1
0x0C Synthesis Profile @ Level 2
0x0D Synthesis Profile @ Level 3
0x0E-0x7F Reserved
0x80-0xFD User private
0xFE No audio profile specified
0xFF No audio required
*/
// MP4SetAudioProfileLevel(fd, 0x7F);
MP4SetAudioProfileLevel(fd, 0x0F);
if (0) {
// uint8_t c[] = {0x15, 0x88}; // 00010 1011 0001 000
uint8_t c[] = {0x12, 0x08}; // 00010 0100 0001 000
MP4SetTrackESConfiguration(fd, audio, c, sizeof(c));
}
if (read_impl.ianacode != 0) {
if (switch_core_codec_init(&codec,
"PCMU",
NULL,
read_impl.samples_per_second,
read_impl.microseconds_per_packet / 1000,
read_impl.number_of_channels, SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
NULL, switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Audio Codec Activation Success\n");
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Audio Codec Activation Fail\n");
switch_channel_set_variable(channel, SWITCH_CURRENT_APPLICATION_RESPONSE_VARIABLE, "Audio codec activation failed");
goto end;
}
switch_core_session_set_read_codec(session, &codec);
}
if (switch_channel_test_flag(channel, CF_VIDEO)) {
switch_codec_implementation_t video_read_impl = { 0 };
switch_core_session_get_video_read_impl(session, &video_read_impl);
if (video_read_impl.iananame && (!strcasecmp(video_read_impl.iananame, "H264"))) {
switch_channel_set_flag(channel, CF_VIDEO_PASSIVE);
switch_channel_set_flag(channel, CF_VIDEO_READY);
switch_mutex_init(&mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
eh.mutex = mutex;
eh.fd = fd;
switch_core_media_start_video_function(session, record_video_thread, &eh);
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "only H264 video is supported, you have %s\n", video_read_impl.iananame);
switch_channel_set_flag(channel, CF_VIDEO_ECHO);
switch_channel_set_flag(channel, CF_VIDEO_READY);
}
}
if (switch_event_create(&event, SWITCH_EVENT_RECORD_START) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Record-File-Path", (char *)data);
switch_event_fire(&event);
}
while (switch_channel_ready(channel)) {
status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_SINGLE_READ, 0);
if (switch_channel_test_flag(channel, CF_BREAK)) {
switch_channel_clear_flag(channel, CF_BREAK);
eh.up = 0;
break;
}
switch_ivr_parse_all_events(session);
//check for dtmf interrupts
if (switch_channel_has_dtmf(channel)) {
const char * terminators = switch_channel_get_variable(channel, SWITCH_PLAYBACK_TERMINATORS_VARIABLE);
switch_channel_dequeue_dtmf(channel, &dtmf);
if (terminators && !strcasecmp(terminators, "none")) {
terminators = NULL;
}
if (terminators && strchr(terminators, dtmf.digit)) {
char sbuf[2] = {dtmf.digit, '\0'};
switch_channel_set_variable(channel, SWITCH_PLAYBACK_TERMINATOR_USED, sbuf);
eh.up = 0;
break;
}
}
if (!SWITCH_READ_ACCEPTABLE(status)) {
eh.up = 0;
break;
}
switch_core_session_write_frame(session, read_frame, SWITCH_IO_FLAG_NONE, 0);
if (switch_test_flag(read_frame, SFF_CNG)) {
// switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "cng, datalen:%d\n", read_frame->datalen);
continue;
// memset(read_frame->data, 0x0, 160);
}
if (mutex) switch_mutex_lock(mutex);
if (!eh.timer.interval) {
switch_core_timer_init(&eh.timer, "soft", 1, 1, switch_core_session_get_pool(session));
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "init timer\n");
}
duration = read_frame->datalen / read_impl.number_of_channels;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "%d %d\n", duration, read_frame->datalen);
MP4WriteSample(fd, audio, read_frame->data, read_frame->datalen, duration, 0, 1);
if (mutex) switch_mutex_unlock(mutex);
}
switch_channel_set_variable(channel, SWITCH_CURRENT_APPLICATION_RESPONSE_VARIABLE, "OK");
if (switch_event_create(&event, SWITCH_EVENT_RECORD_STOP) == SWITCH_STATUS_SUCCESS) {
switch_channel_event_set_data(channel, event);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Record-File-Path", (char *)data);
switch_event_fire(&event);
}
end:
if (eh.up) {
while (eh.up) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "waiting video thread to be done ...\n");
switch_yield(100000);
switch_cond_next();
}
}
if (eh.timer.interval) {
switch_core_timer_destroy(&eh.timer);
}
switch_core_media_end_video_function(session);
switch_channel_clear_flag(channel, CF_VIDEO_PASSIVE);
switch_core_session_set_read_codec(session, NULL);
if (fd != MP4_INVALID_FILE_HANDLE) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "closing file %s\n", (char *)data);
MP4Close(fd, 0);
}
if (switch_core_codec_ready(&codec)) switch_core_codec_destroy(&codec);
}
// SWITCH_STANDARD_APP(play_mp4_function)
// {
// }
static inline char *get_audio_codec_name(uint8_t audio_type)
{
switch (audio_type) {
case MP4_MP3_AUDIO_TYPE:
return "MP3";
case MP4_ULAW_AUDIO_TYPE:
return "PCMU";
case MP4_PCM16_LITTLE_ENDIAN_AUDIO_TYPE:
return "L16";
case MP4_MPEG4_AUDIO_TYPE:
return "AAC";
default:
return "ERROR";
}
}
static int get_aac_sample_rate_index(unsigned int sampleRate)
{
if (92017 <= sampleRate) return 0;
if (75132 <= sampleRate) return 1;
if (55426 <= sampleRate) return 2;
if (46009 <= sampleRate) return 3;
if (37566 <= sampleRate) return 4;
if (27713 <= sampleRate) return 5;
if (23004 <= sampleRate) return 6;
if (18783 <= sampleRate) return 7;
if (13856 <= sampleRate) return 8;
if (11502 <= sampleRate) return 9;
if (9391 <= sampleRate) return 10;
return 11;
}
struct mp4_file_context {
switch_memory_pool_t *pool;
MP4FileHandle fd;
MP4TrackId audio;
MP4TrackId video;
switch_codec_t audio_codec;
switch_codec_t video_codec;
switch_mutex_t *mutex;
switch_buffer_t *buf;
int sps_set;
int pps_set;
switch_timer_t timer;
uint64_t last_pts;
int offset;
int audio_start;
uint8_t audio_type; // MP4 Audio Type
MP4Duration audio_duration;
switch_image_t *last_img;
};
typedef struct mp4_file_context mp4_file_context_t;
static switch_status_t mp4_file_open(switch_file_handle_t *handle, const char *path)
{
mp4_file_context_t *context;
char *ext;
unsigned int flags = 0;
const char *tmp = NULL;
if ((ext = strrchr(path, '.')) == 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid Format\n");
return SWITCH_STATUS_GENERR;
}
ext++;
if ((context = switch_core_alloc(handle->memory_pool, sizeof(mp4_file_context_t))) == 0) {
return SWITCH_STATUS_MEMERR;
}
memset(context, 0, sizeof(mp4_file_context_t));
context->offset = -100;
if (handle->params && (tmp = switch_event_get_header(handle->params, "mp4v2_video_offset"))) {
context->offset = atoi(tmp);
}
context->audio_type = MP4_ULAW_AUDIO_TYPE; // default
if (handle->params && (tmp = switch_event_get_header(handle->params, "mp4v2_audio_codec"))) {
if (!strcasecmp(tmp, "PCMU")) {
context->audio_type = MP4_ULAW_AUDIO_TYPE;
} else if (!strcasecmp(tmp, "MP3")) {
context->audio_type = MP4_MP3_AUDIO_TYPE;
} else if (!strcasecmp(tmp, "AAC")) {
context->audio_type = MP4_MPEG4_AUDIO_TYPE;
} else if (!strcasecmp(tmp, "L16")) {
context->audio_type = MP4_PCM16_LITTLE_ENDIAN_AUDIO_TYPE;
}
}
switch_mutex_init(&context->mutex, SWITCH_MUTEX_NESTED, handle->memory_pool);
if (switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) {
flags |= SWITCH_FOPEN_WRITE | SWITCH_FOPEN_CREATE;
if (switch_test_flag(handle, SWITCH_FILE_WRITE_APPEND) || switch_test_flag(handle, SWITCH_FILE_WRITE_OVER)) {
flags |= SWITCH_FOPEN_READ;
} else {
flags |= SWITCH_FOPEN_TRUNCATE;
}
}
if (switch_test_flag(handle, SWITCH_FILE_FLAG_READ)) {
flags |= SWITCH_FOPEN_READ;
}
if ((context->fd = MP4CreateEx(path, 0, 1, 1, NULL, 0, NULL, 0)) == MP4_INVALID_FILE_HANDLE) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error opening file %s\n", path);
return SWITCH_STATUS_GENERR;
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "sample rate: %d, channels: %d\n", handle->samplerate, handle->channels);
if (context->audio_type == MP4_ULAW_AUDIO_TYPE) {
context->audio = MP4AddULawAudioTrack(context->fd, handle->samplerate);
MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd.ulaw.channels", handle->channels);
MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd.ulaw.sampleSize", 8);
} else if (context->audio_type == MP4_MP3_AUDIO_TYPE) {
// handle->samplerate = 44100;
context->audio = MP4AddAudioTrack(context->fd, handle->samplerate, handle->samplerate, MP4_MP3_AUDIO_TYPE);
MP4SetTrackName(context->fd, context->audio, ".mp3");
MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd.mp4a.channels", handle->channels);
// MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd..mp3.channels", handle->channels);
} else if (context->audio_type == MP4_PCM16_LITTLE_ENDIAN_AUDIO_TYPE) {
context->audio = MP4AddAudioTrack(context->fd, handle->samplerate, handle->samplerate, MP4_PCM16_LITTLE_ENDIAN_AUDIO_TYPE);
MP4SetTrackName(context->fd, context->audio, "lpcm");
MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd.mp4a.channels", handle->channels);
MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd.lpcm.channels", handle->channels);
MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd.lpcm.sampleSize", 16);
} else if (context->audio_type == MP4_MPEG4_AUDIO_TYPE) {
/* AAC object types */
#define AAC_MAIN 1
#define AAC_LOW 2
#define AAC_SSR 3
#define AAC_LTP 4
uint16_t info = 0;
info |= AAC_LOW << 11; // aacObjectType (5bit)
info |= get_aac_sample_rate_index(handle->samplerate) << 7; //(4bit)
info |= handle->channels << 3; //(4bit)
info = htons(info);
context->audio = MP4AddAudioTrack(context->fd, handle->samplerate, handle->samplerate, MP4_MPEG4_AUDIO_TYPE);
MP4SetTrackESConfiguration(context->fd, context->audio, (uint8_t *)&info, sizeof(info));
MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd.mp4a.channels", handle->channels);
}
handle->format = 0;
handle->sections = 0;
handle->seekable = 0;
handle->speed = 0;
handle->pos = 0;
handle->private_info = context;
context->pool = handle->memory_pool;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Opening File [%s] %dhz %s\n",
path, handle->samplerate, switch_test_flag(handle, SWITCH_FILE_FLAG_VIDEO) ? " with VIDEO" : "");
if (switch_core_codec_init(&context->audio_codec,
get_audio_codec_name(context->audio_type),
NULL,
handle->samplerate,
20,//ms
handle->channels, SWITCH_CODEC_FLAG_ENCODE,
NULL, handle->memory_pool) == SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Audio Codec Activation Success\n");
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Audio Codec Activation Fail\n");
goto end;
}
if (switch_test_flag(handle, SWITCH_FILE_FLAG_VIDEO)) {
if (switch_core_codec_init(&context->video_codec,
"H264",
NULL,
90000,
0,//ms
1, SWITCH_CODEC_FLAG_ENCODE,
NULL, handle->memory_pool) == SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Video Codec H264 Activation Success\n");
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Video Codec H264 Activation Fail\n");
goto end;
}
}
if (switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) {
MP4SetAudioProfileLevel(context->fd, 0x7F);
}
switch_buffer_create_dynamic(&context->buf, 512, 512, 1024000);
return SWITCH_STATUS_SUCCESS;
end:
if (context->fd) {
MP4Close(context->fd, 0);
context->fd = NULL;
}
return SWITCH_STATUS_FALSE;
}
static switch_status_t mp4_file_truncate(switch_file_handle_t *handle, int64_t offset)
{
mp4_file_context_t *context = handle->private_info;
switch_status_t status;
if ((status = switch_file_trunc(context->fd, offset)) == SWITCH_STATUS_SUCCESS) {
handle->pos = 0;
}
return status;
}
static switch_status_t mp4_file_close(switch_file_handle_t *handle)
{
mp4_file_context_t *context = handle->private_info;
if (context->fd) {
MP4Close(context->fd, 0);
context->fd = NULL;
}
if (switch_core_codec_ready(&context->audio_codec)) switch_core_codec_destroy(&context->audio_codec);
if (switch_core_codec_ready(&context->video_codec)) switch_core_codec_destroy(&context->video_codec);
if (context->timer.interval) {
switch_core_timer_destroy(&context->timer);
}
switch_img_free(&context->last_img);
switch_buffer_destroy(&context->buf);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t mp4_file_seek(switch_file_handle_t *handle, unsigned int *cur_sample, int64_t samples, int whence)
{
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "seek not implemented\n");
return SWITCH_STATUS_FALSE;
}
static switch_status_t mp4_file_read(switch_file_handle_t *handle, void *data, size_t *len)
{
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "read not implemented\n");
return SWITCH_STATUS_FALSE;
}
static switch_status_t mp4_file_write(switch_file_handle_t *handle, void *data, size_t *len)
{
uint32_t datalen = *len * 2 * handle->channels;
switch_status_t status = SWITCH_STATUS_SUCCESS;
uint8_t buf[SWITCH_RECOMMENDED_BUFFER_SIZE];
uint32_t encoded_rate;
mp4_file_context_t *context = handle->private_info;
uint32_t size = 0;
context->audio_duration += *len;
if (context->audio_type == MP4_PCM16_LITTLE_ENDIAN_AUDIO_TYPE) {
size = datalen;
memcpy(buf, data, datalen);
} else {
switch_core_codec_encode(&context->audio_codec, NULL,
data, datalen,
handle->samplerate,
buf, &size, &encoded_rate, NULL);
}
switch_mutex_lock(context->mutex);
if (!context->timer.interval) {
switch_core_timer_init(&context->timer, "soft", 1, 1, context->pool);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "init timer\n");
} else if(!context->audio_start) { // try make up some sampels if the video already start
int i, count;
uint8_t buf0[SWITCH_RECOMMENDED_BUFFER_SIZE] = { 0 };
context->audio_start++;
switch_core_timer_sync(&context->timer);
count = context->timer.samplecount - context->offset;
if (count > 0) {
count /= *len;
}
if (context->audio_type != MP4_ULAW_AUDIO_TYPE) {
count = 0; // todo: make this feature work for mp3/aac
}
if (count){
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "video is short, make up %lu samples\n", count * (*len));
MP4WriteSample(context->fd, context->audio, buf0, size, 0, 0, 1);
}
for (i = 1; i < count; i++) {
MP4WriteSample(context->fd, context->audio, buf0, size, *len, 0, 1);
}
}
if (context->audio_type == MP4_MPEG4_AUDIO_TYPE && size == 0) {
// don't write 0
} else {
MP4WriteSample(context->fd, context->audio, buf, size, context->audio_duration, 0, 1);
context->audio_duration = 0;
}
switch_mutex_unlock(context->mutex);
return status;
}
static switch_status_t mp4_file_read_video(switch_file_handle_t *handle, switch_frame_t *frame, switch_video_read_flag_t flags)
{
return SWITCH_STATUS_FALSE;
}
static switch_status_t do_write_video(switch_file_handle_t *handle, switch_frame_t *frame)
{
uint32_t datalen = frame->datalen;
switch_status_t status = SWITCH_STATUS_SUCCESS;
int is_iframe = 0;
uint32_t size;
uint8_t *hdr = NULL;
uint8_t fragment_type;
uint8_t nal_type;
uint8_t start_bit;
mp4_file_context_t *context = handle->private_info;
hdr = (uint8_t *)frame->data;
fragment_type = hdr[0] & 0x1f;
nal_type = hdr[1] & 0x1f;
start_bit = hdr[1] & 0x80;
is_iframe = (((fragment_type == 28 || fragment_type == 29) && nal_type == 5 && start_bit == 128) || fragment_type == 5 || fragment_type ==7 || fragment_type ==8) ? 1 : 0;
// switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "%02x %02x %02x | len:%d m:%d st:%d i:%d\n", hdr[0], hdr[1], hdr[2], datalen, frame->m, start_bit, is_iframe);
size = htonl(datalen);
switch_buffer_write(context->buf, &size, 4);
switch_buffer_write(context->buf, hdr, datalen);
switch_mutex_lock(context->mutex);
if (fragment_type == 7 && !context->sps_set) { //sps
context->sps_set = 1;
init_video_track(context->fd, &context->video, frame);
if (context->video == MP4_INVALID_TRACK_ID) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error add video track!\n");
switch_goto_status(SWITCH_STATUS_FALSE, end);
}
} else if (fragment_type == 8 && context->sps_set && !context->pps_set) { //pps
MP4AddH264PictureParameterSet(context->fd, context->video, hdr, datalen);
context->pps_set = 1;
}
if (nal_type == 7 || nal_type == 8 || frame->m == 0) {
} else if (context->sps_set && context->pps_set) {
uint32_t used = switch_buffer_inuse(context->buf);
const void *data;
int duration = 0;
if (!context->timer.interval) {
switch_core_timer_init(&context->timer, "soft", 1, 1, context->pool);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "init timer\n");
} else {
switch_core_timer_sync(&context->timer);
}
duration = context->timer.samplecount - context->last_pts;
// switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "samplecount: %u, duration: %u\n", context->timer.samplecount, duration);
switch_buffer_peek_zerocopy(context->buf, &data);
if (context->last_pts == 0) { // first img, write at the very beginning so we don't see blank screen
duration /= 2;
MP4WriteSample(context->fd, context->video, data, used, duration, 0, is_iframe);
if (duration > context->offset) {
duration -= context->offset;
} else {
duration = 0;
}
}
context->last_pts = context->timer.samplecount;
// switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "samplecount: %u, duration: %u\n", context->timer.samplecount, duration);
if (duration) {
MP4WriteSample(context->fd, context->video, data, used, duration, 0, is_iframe);
}
switch_buffer_zero(context->buf);
}
end:
switch_mutex_unlock(context->mutex);
return status;
}
static switch_status_t mp4_file_write_video(switch_file_handle_t *handle, switch_frame_t *frame)
{
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_status_t encode_status = SWITCH_STATUS_SUCCESS;
mp4_file_context_t *context = handle->private_info;
if (!frame->img) {
return do_write_video(handle, frame);
} else {
switch_frame_t eframe = { 0 };
uint8_t data[SWITCH_RECOMMENDED_BUFFER_SIZE];
if (!context->last_img) {
switch_img_copy(frame->img, &context->last_img);
return status;
}
eframe.data = data + 12;
eframe.datalen = SWITCH_RECOMMENDED_BUFFER_SIZE - 12;
eframe.img = context->last_img;
do {
frame->datalen = SWITCH_DEFAULT_VIDEO_SIZE;
encode_status = switch_core_codec_encode_video(&context->video_codec, &eframe);
if (encode_status == SWITCH_STATUS_SUCCESS || encode_status == SWITCH_STATUS_MORE_DATA) {
switch_assert((encode_status == SWITCH_STATUS_SUCCESS && eframe.m) || !eframe.m);
if (eframe.datalen > 0) status = do_write_video(handle, &eframe);
}
} while(status == SWITCH_STATUS_SUCCESS && encode_status == SWITCH_STATUS_MORE_DATA);
}
switch_img_copy(frame->img, &context->last_img);
return status;
}
static switch_status_t mp4_file_set_string(switch_file_handle_t *handle, switch_audio_col_t col, const char *string)
{
return SWITCH_STATUS_FALSE;
}
static switch_status_t mp4_file_get_string(switch_file_handle_t *handle, switch_audio_col_t col, const char **string)
{
return SWITCH_STATUS_FALSE;
}
static char *supported_formats[2] = { 0 };
SWITCH_MODULE_LOAD_FUNCTION(mod_mp4v2_load)
{
switch_application_interface_t *app_interface;
switch_file_interface_t *file_interface;
supported_formats[0] = "mp4";
/* connect my internal structure to the blank pointer passed to me */
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
file_interface = switch_loadable_module_create_interface(*module_interface, SWITCH_FILE_INTERFACE);
file_interface->interface_name = modname;
file_interface->extens = supported_formats;
file_interface->file_open = mp4_file_open;
file_interface->file_close = mp4_file_close;
file_interface->file_truncate = mp4_file_truncate;
file_interface->file_read = mp4_file_read;
file_interface->file_write = mp4_file_write;
file_interface->file_read_video = mp4_file_read_video;
file_interface->file_write_video = mp4_file_write_video;
file_interface->file_seek = mp4_file_seek;
file_interface->file_set_string = mp4_file_set_string;
file_interface->file_get_string = mp4_file_get_string;
// SWITCH_ADD_APP(app_interface, "play_mp4", "play an mp4 file", "play an mp4 file", play_mp4_function, "<file>", SAF_NONE);
SWITCH_ADD_APP(app_interface, "record_mp4", "record an mp4 file", "record an mp4 file", record_mp4_function, "<file>", SAF_NONE);
/* indicate that the module should continue to be loaded */
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:
*/
Markdown 格式
0% 或
您添加了 0 人 到此讨论。请谨慎行事。
请先完成此评论的编辑！
请 注册 或者 后发表评论