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FS-11333: [mod_mp4v2] improvements

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update mod_mp4v2 fix record video and lipsync
refactor to use a dedicated video write thread
read frame_size from encoder to support mp3 and aac codec
fix audio only mode
control bandwidth and fps
This commit is contained in:
Seven Du
2017-11-28 01:59:09 +08:00
committed by Mike Jerris
parent 8932608272
commit 8cbe796831
1 changed files with 234 additions and 469 deletions
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703
src/mod/applications/mod_mp4v2/mod_mp4v2.c
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@@ -38,6 +38,7 @@
#define TIMESCALE 1000 #define TIMESCALE 1000
#define SampleLenFieldSize 4 #define SampleLenFieldSize 4
#define PTIME 20
// #define HAS_SPS_PARSER // #define HAS_SPS_PARSER
SWITCH_MODULE_LOAD_FUNCTION(mod_mp4v2_load); SWITCH_MODULE_LOAD_FUNCTION(mod_mp4v2_load);
@@ -138,374 +139,6 @@ static void init_video_track(MP4FileHandle mp4, MP4TrackId *video, switch_frame_
MP4SetVideoProfileLevel(mp4, 0x7F); 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,
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) static inline char *get_audio_codec_name(uint8_t audio_type)
{ {
switch (audio_type) { switch (audio_type) {
@@ -540,14 +173,17 @@ static int get_aac_sample_rate_index(unsigned int sampleRate)
} }
struct mp4_file_context { struct mp4_file_context {
switch_file_handle_t *handle;
switch_memory_pool_t *pool; switch_memory_pool_t *pool;
MP4FileHandle fd; MP4FileHandle fd;
MP4TrackId audio; MP4TrackId audio;
MP4TrackId video; MP4TrackId video;
uint32_t audio_frame_size;
switch_codec_t audio_codec; switch_codec_t audio_codec;
switch_codec_t video_codec; switch_codec_t video_codec;
switch_mutex_t *mutex; switch_mutex_t *mutex;
switch_buffer_t *buf; switch_buffer_t *buf;
uint32_t last_chunk_size;
int sps_set; int sps_set;
int pps_set; int pps_set;
switch_timer_t timer; switch_timer_t timer;
@@ -556,11 +192,92 @@ struct mp4_file_context {
int audio_start; int audio_start;
uint8_t audio_type; // MP4 Audio Type uint8_t audio_type; // MP4 Audio Type
MP4Duration audio_duration; MP4Duration audio_duration;
switch_image_t *last_img; switch_thread_t *video_thread;
switch_queue_t *video_queue;
}; };
typedef struct mp4_file_context mp4_file_context_t; typedef struct mp4_file_context mp4_file_context_t;
static switch_status_t do_write_video(switch_file_handle_t *handle, switch_frame_t *frame);
static void *SWITCH_THREAD_FUNC video_write_thread_run(switch_thread_t *thread, void *obj)
{
mp4_file_context_t *context = (mp4_file_context_t *)obj;
void *pop = NULL;
switch_image_t *last_img = NULL;
switch_status_t status = SWITCH_STATUS_SUCCESS;
switch_status_t encode_status = SWITCH_STATUS_SUCCESS;
uint8_t data[SWITCH_DEFAULT_VIDEO_SIZE];
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "video_write_thread start\n");
while (switch_queue_pop(context->video_queue, &pop) == SWITCH_STATUS_SUCCESS) {
switch_frame_t frame = { 0 };
if (!pop) break;
if (!last_img) { // first img
last_img = (switch_image_t *)pop;
continue;
}
frame.data = data;
frame.img = last_img;
// switch_set_flag(&frame, SFF_DYNAMIC);
do {
frame.datalen = SWITCH_DEFAULT_VIDEO_SIZE;
encode_status = switch_core_codec_encode_video(&context->video_codec, &frame);
if (encode_status == SWITCH_STATUS_SUCCESS || encode_status == SWITCH_STATUS_MORE_DATA) {
switch_assert((encode_status == SWITCH_STATUS_SUCCESS && frame.m) || !frame.m);
if (frame.datalen == 0) break;
status = do_write_video(context->handle, &frame);
}
} while(status == SWITCH_STATUS_SUCCESS && encode_status == SWITCH_STATUS_MORE_DATA);
switch_img_free(&last_img);
last_img = (switch_image_t *)pop;
}
switch_img_free(&last_img);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "video_write_thread done\n");
return NULL;
}
static void launch_video_write_thread(mp4_file_context_t *context, switch_memory_pool_t *pool)
{
//switch_thread_t *thread;
switch_threadattr_t *thd_attr = NULL;
switch_threadattr_create(&thd_attr, pool);
switch_threadattr_detach_set(thd_attr, 1);
switch_threadattr_stacksize_set(thd_attr, SWITCH_THREAD_STACKSIZE);
// switch_threadattr_priority_set(thd_attr, SWITCH_PRI_REALTIME);
switch_thread_create(&context->video_thread, thd_attr, video_write_thread_run, context, pool);
}
static int flush_video_queue(switch_queue_t *q, int min)
{
void *pop;
if (switch_queue_size(q) > min) {
while (switch_queue_trypop(q, &pop) == SWITCH_STATUS_SUCCESS) {
switch_image_t *img = (switch_image_t *) pop;
switch_img_free(&img);
if (min && switch_queue_size(q) <= min) {
break;
}
}
}
return switch_queue_size(q);
}
static switch_status_t mp4_file_open(switch_file_handle_t *handle, const char *path) static switch_status_t mp4_file_open(switch_file_handle_t *handle, const char *path)
{ {
mp4_file_context_t *context; mp4_file_context_t *context;
@@ -580,7 +297,9 @@ static switch_status_t mp4_file_open(switch_file_handle_t *handle, const char *p
memset(context, 0, sizeof(mp4_file_context_t)); memset(context, 0, sizeof(mp4_file_context_t));
context->offset = -100; context->handle = handle;
context->offset = 0;
if (handle->params && (tmp = switch_event_get_header(handle->params, "mp4v2_video_offset"))) { if (handle->params && (tmp = switch_event_get_header(handle->params, "mp4v2_video_offset"))) {
context->offset = atoi(tmp); context->offset = atoi(tmp);
} }
@@ -614,6 +333,22 @@ static switch_status_t mp4_file_open(switch_file_handle_t *handle, const char *p
flags |= SWITCH_FOPEN_READ; flags |= SWITCH_FOPEN_READ;
} }
if (handle->mm.samplerate) {
handle->samplerate = handle->mm.samplerate;
} else {
handle->mm.samplerate = handle->samplerate;
}
if (!handle->mm.ab) {
handle->mm.ab = 128;
}
if (!handle->mm.vb) {
handle->mm.vb = switch_calc_bitrate(handle->mm.vw, handle->mm.vh, 1, handle->mm.fps);
}
// MP4_CREATE_64BIT_DATA if file > 4G
if ((context->fd = MP4CreateEx(path, 0, 1, 1, NULL, 0, NULL, 0)) == MP4_INVALID_FILE_HANDLE) { 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); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error opening file %s\n", path);
return SWITCH_STATUS_GENERR; return SWITCH_STATUS_GENERR;
@@ -651,7 +386,7 @@ static switch_status_t mp4_file_open(switch_file_handle_t *handle, const char *p
info |= handle->channels << 3; //(4bit) info |= handle->channels << 3; //(4bit)
info = htons(info); info = htons(info);
context->audio = MP4AddAudioTrack(context->fd, handle->samplerate, handle->samplerate, MP4_MPEG4_AUDIO_TYPE); context->audio = MP4AddAudioTrack(context->fd, handle->samplerate, 1024, MP4_MPEG4_AUDIO_TYPE);
MP4SetTrackESConfiguration(context->fd, context->audio, (uint8_t *)&info, sizeof(info)); MP4SetTrackESConfiguration(context->fd, context->audio, (uint8_t *)&info, sizeof(info));
MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd.mp4a.channels", handle->channels); MP4SetTrackIntegerProperty(context->fd, context->audio, "mdia.minf.stbl.stsd.mp4a.channels", handle->channels);
} }
@@ -672,7 +407,7 @@ static switch_status_t mp4_file_open(switch_file_handle_t *handle, const char *p
NULL, NULL,
NULL, NULL,
handle->samplerate, handle->samplerate,
20,//ms PTIME,//ms
handle->channels, SWITCH_CODEC_FLAG_ENCODE, handle->channels, SWITCH_CODEC_FLAG_ENCODE,
NULL, handle->memory_pool) == SWITCH_STATUS_SUCCESS) { NULL, handle->memory_pool) == SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Audio Codec Activation Success\n"); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Audio Codec Activation Success\n");
@@ -681,7 +416,21 @@ static switch_status_t mp4_file_open(switch_file_handle_t *handle, const char *p
goto end; goto end;
} }
if (context->audio_type == MP4_MP3_AUDIO_TYPE) { // fetch frame size
uint32_t size;
uint32_t flag = 0xFFFFFFFF;
switch_core_codec_encode(&context->audio_codec, NULL, &flag, 0, 0,
(void *)&context->audio_frame_size, &size, NULL, &flag);
} else if (context->audio_type == MP4_MPEG4_AUDIO_TYPE) {
context->audio_frame_size = 1024;
}
if (switch_test_flag(handle, SWITCH_FILE_FLAG_VIDEO)) { if (switch_test_flag(handle, SWITCH_FILE_FLAG_VIDEO)) {
switch_codec_settings_t codec_settings = {{ 0 }};
codec_settings.video.bandwidth = handle->mm.vb;
codec_settings.video.fps = handle->mm.fps;
if (switch_core_codec_init(&context->video_codec, if (switch_core_codec_init(&context->video_codec,
"H264", "H264",
NULL, NULL,
@@ -689,12 +438,15 @@ static switch_status_t mp4_file_open(switch_file_handle_t *handle, const char *p
90000, 90000,
0,//ms 0,//ms
1, SWITCH_CODEC_FLAG_ENCODE, 1, SWITCH_CODEC_FLAG_ENCODE,
NULL, handle->memory_pool) == SWITCH_STATUS_SUCCESS) { &codec_settings, handle->memory_pool) == SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Video Codec H264 Activation Success\n"); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Video Codec H264 Activation Success\n");
} else { } else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Video Codec H264 Activation Fail\n"); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Video Codec H264 Activation Fail\n");
goto end; goto end;
} }
switch_queue_create(&context->video_queue, 60, handle->memory_pool);
launch_video_write_thread(context, handle->memory_pool);
} }
if (switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) { if (switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) {
@@ -729,9 +481,10 @@ static switch_status_t mp4_file_truncate(switch_file_handle_t *handle, int64_t o
static switch_status_t mp4_file_close(switch_file_handle_t *handle) static switch_status_t mp4_file_close(switch_file_handle_t *handle)
{ {
mp4_file_context_t *context = handle->private_info; mp4_file_context_t *context = handle->private_info;
switch_status_t status;
if (context->fd) { if (context->fd) {
MP4Close(context->fd, 0); MP4Close(context->fd, MP4_CLOSE_DO_NOT_COMPUTE_BITRATE);
context->fd = NULL; context->fd = NULL;
} }
@@ -742,7 +495,15 @@ static switch_status_t mp4_file_close(switch_file_handle_t *handle)
switch_core_timer_destroy(&context->timer); switch_core_timer_destroy(&context->timer);
} }
switch_img_free(&context->last_img); if (context->video_queue) {
switch_queue_term(context->video_queue);
flush_video_queue(context->video_queue, 0);
}
if (context->video_thread) {
switch_thread_join(&status, context->video_thread);
}
switch_buffer_destroy(&context->buf); switch_buffer_destroy(&context->buf);
return SWITCH_STATUS_SUCCESS; return SWITCH_STATUS_SUCCESS;
@@ -768,9 +529,7 @@ static switch_status_t mp4_file_write(switch_file_handle_t *handle, void *data,
uint32_t encoded_rate; uint32_t encoded_rate;
mp4_file_context_t *context = handle->private_info; mp4_file_context_t *context = handle->private_info;
uint32_t size = 0; uint32_t size = 0;
uint32_t flag = 0;
context->audio_duration += *len;
if (context->audio_type == MP4_PCM16_LITTLE_ENDIAN_AUDIO_TYPE) { if (context->audio_type == MP4_PCM16_LITTLE_ENDIAN_AUDIO_TYPE) {
size = datalen; size = datalen;
@@ -779,7 +538,7 @@ static switch_status_t mp4_file_write(switch_file_handle_t *handle, void *data,
switch_core_codec_encode(&context->audio_codec, NULL, switch_core_codec_encode(&context->audio_codec, NULL,
data, datalen, data, datalen,
handle->samplerate, handle->samplerate,
buf, &size, &encoded_rate, NULL); buf, &size, &encoded_rate, &flag);
} }
switch_mutex_lock(context->mutex); switch_mutex_lock(context->mutex);
@@ -787,40 +546,14 @@ static switch_status_t mp4_file_write(switch_file_handle_t *handle, void *data,
if (!context->timer.interval) { if (!context->timer.interval) {
switch_core_timer_init(&context->timer, "soft", 1, 1, context->pool); switch_core_timer_init(&context->timer, "soft", 1, 1, context->pool);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "init timer\n"); 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) { if (size > 0) {
// don't write 0 MP4WriteSample(context->fd, context->audio, buf, size, context->audio_frame_size ? context->audio_frame_size : *len, 0, 1);
} else {
MP4WriteSample(context->fd, context->audio, buf, size, context->audio_duration, 0, 1);
context->audio_duration = 0;
} }
context->audio_duration += *len;
switch_mutex_unlock(context->mutex); switch_mutex_unlock(context->mutex);
return status; return status;
@@ -841,115 +574,150 @@ static switch_status_t do_write_video(switch_file_handle_t *handle, switch_frame
uint8_t fragment_type; uint8_t fragment_type;
uint8_t nal_type; uint8_t nal_type;
uint8_t start_bit; uint8_t start_bit;
uint8_t end_bit;
mp4_file_context_t *context = handle->private_info; mp4_file_context_t *context = handle->private_info;
hdr = (uint8_t *)frame->data; hdr = (uint8_t *)frame->data;
fragment_type = hdr[0] & 0x1f; fragment_type = hdr[0] & 0x1f;
nal_type = hdr[1] & 0x1f; nal_type = hdr[1] & 0x1f;
start_bit = hdr[1] & 0x80; 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; end_bit = hdr[1] & 0x40;
is_iframe = fragment_type == 5 || (fragment_type == 28 && nal_type == 5);
// 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); // 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 if (fragment_type == 7 && !context->sps_set) { //sps
context->sps_set = 1; context->sps_set = 1;
init_video_track(context->fd, &context->video, frame); init_video_track(context->fd, &context->video, frame);
if (context->video == MP4_INVALID_TRACK_ID) { if (context->video == MP4_INVALID_TRACK_ID) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error add video track!\n"); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error add video track!\n");
switch_goto_status(SWITCH_STATUS_FALSE, end); return SWITCH_STATUS_FALSE;
} }
} else if (fragment_type == 8 && context->sps_set && !context->pps_set) { //pps } else if (fragment_type == 8 && context->sps_set && !context->pps_set) { //pps
MP4AddH264PictureParameterSet(context->fd, context->video, hdr, datalen); MP4AddH264PictureParameterSet(context->fd, context->video, hdr, datalen);
context->pps_set = 1; context->pps_set = 1;
} }
if (nal_type == 7 || nal_type == 8 || frame->m == 0) { if (fragment_type == 28) {
} else if (context->sps_set && context->pps_set) { if (start_bit && end_bit) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "WTF?\n");
}
if (start_bit) {
nal_type |= (hdr[0] & 0x60);
size = htonl(datalen);
switch_buffer_write(context->buf, &size, 4);
switch_buffer_write(context->buf, &nal_type, 1);
switch_buffer_write(context->buf, hdr + 2, datalen - 2);
context->last_chunk_size = datalen - 1;
} else if (end_bit) {
uint32_t used;
const void *data;
uint32_t *chunk_size = NULL;
switch_buffer_write(context->buf, hdr + 2, datalen - 2);
context->last_chunk_size += datalen - 2;
used = switch_buffer_inuse(context->buf);
switch_buffer_peek_zerocopy(context->buf, &data);
chunk_size = (uint32_t *)((uint8_t *)data + used - context->last_chunk_size - 4);
*chunk_size = htonl(context->last_chunk_size);
} else {
switch_buffer_write(context->buf, hdr + 2, datalen - 2);
context->last_chunk_size += datalen - 2;
}
} else {
size = htonl(datalen);
switch_buffer_write(context->buf, &size, 4);
switch_buffer_write(context->buf, hdr, datalen);
}
if (!frame->m) {
return SWITCH_STATUS_SUCCESS;
}
switch_mutex_lock(context->mutex);
if (context->sps_set && context->pps_set) {
uint32_t used = switch_buffer_inuse(context->buf); uint32_t used = switch_buffer_inuse(context->buf);
const void *data; const void *data;
int duration = 0; int duration = 0;
int ts = 0;
if (!context->timer.interval) { if (frame->img && frame->img->user_priv) {
switch_core_timer_init(&context->timer, "soft", 1, 1, context->pool); ts = *(int *)frame->img->user_priv;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "init timer\n");
} else { } else {
switch_core_timer_sync(&context->timer); switch_core_timer_sync(&context->timer);
ts = context->timer.samplecount;
} }
duration = context->timer.samplecount - context->last_pts; duration = ts - context->last_pts;
if (duration <= 0) duration = 1;
// switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "samplecount: %u, duration: %u\n", context->timer.samplecount, duration); // 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); 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 context->last_pts = ts;
duration /= 2;
MP4WriteSample(context->fd, context->video, data, used, duration, 0, is_iframe);
if (duration > context->offset) { MP4WriteSample(context->fd, context->video, data, used, duration, 0, is_iframe);
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); switch_buffer_zero(context->buf);
} }
end:
switch_mutex_unlock(context->mutex); switch_mutex_unlock(context->mutex);
{
int delta = context->timer.samplecount * (handle->samplerate / 1000) - context->audio_duration;
if (delta > (int)handle->samplerate) {
uint8_t data[SWITCH_RECOMMENDED_BUFFER_SIZE] = { 0 };
size_t samples = handle->samplerate / 1000 * PTIME;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "missed audio %d samples at %d\n", delta, (int)context->audio_duration / (handle->samplerate / 1000));
while ((delta -= samples) > 0) {
mp4_file_write(handle, data, &samples);
samples = handle->samplerate / 1000 * PTIME;
}
}
}
return status; return status;
} }
static switch_status_t mp4_file_write_video(switch_file_handle_t *handle, switch_frame_t *frame) 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; mp4_file_context_t *context = handle->private_info;
if (!frame->img) { if (!frame->img) {
return do_write_video(handle, frame); return do_write_video(handle, frame);
} else { } else {
switch_frame_t eframe = { 0 }; switch_image_t *img = NULL;
uint8_t data[SWITCH_RECOMMENDED_BUFFER_SIZE];
if (!context->timer.interval) {
if (!context->last_img) { switch_mutex_lock(context->mutex);
switch_img_copy(frame->img, &context->last_img); switch_core_timer_init(&context->timer, "soft", 1, 1, context->pool);
return status; switch_mutex_unlock(context->mutex);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "init timer\n");
} else {
switch_mutex_lock(context->mutex);
switch_core_timer_sync(&context->timer);
switch_mutex_unlock(context->mutex);
} }
eframe.data = data + 12; switch_img_copy(frame->img, &img);
eframe.datalen = SWITCH_RECOMMENDED_BUFFER_SIZE - 12; switch_assert(img);
eframe.img = context->last_img; img->user_priv = malloc(sizeof(int));
do { *(int *)img->user_priv = context->timer.samplecount;
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) { if (switch_queue_trypush(context->video_queue, img) != SWITCH_STATUS_SUCCESS) {
switch_assert((encode_status == SWITCH_STATUS_SUCCESS && eframe.m) || !eframe.m); switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "video queue full, discard one frame\n");
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 SWITCH_STATUS_SUCCESS;
return status;
} }
static switch_status_t mp4_file_set_string(switch_file_handle_t *handle, switch_audio_col_t col, const char *string) static switch_status_t mp4_file_set_string(switch_file_handle_t *handle, switch_audio_col_t col, const char *string)
@@ -962,14 +730,14 @@ static switch_status_t mp4_file_get_string(switch_file_handle_t *handle, switch_
return SWITCH_STATUS_FALSE; return SWITCH_STATUS_FALSE;
} }
static char *supported_formats[2] = { 0 }; static char *supported_formats[3] = { 0 };
SWITCH_MODULE_LOAD_FUNCTION(mod_mp4v2_load) SWITCH_MODULE_LOAD_FUNCTION(mod_mp4v2_load)
{ {
switch_application_interface_t *app_interface;
switch_file_interface_t *file_interface; switch_file_interface_t *file_interface;
supported_formats[0] = "mp4"; supported_formats[0] = "mp4v2";
supported_formats[1] = "mp4";
/* connect my internal structure to the blank pointer passed to me */ /* connect my internal structure to the blank pointer passed to me */
*module_interface = switch_loadable_module_create_module_interface(pool, modname); *module_interface = switch_loadable_module_create_module_interface(pool, modname);
@@ -988,9 +756,6 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_mp4v2_load)
file_interface->file_set_string = mp4_file_set_string; file_interface->file_set_string = mp4_file_set_string;
file_interface->file_get_string = mp4_file_get_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 */ /* indicate that the module should continue to be loaded */
return SWITCH_STATUS_SUCCESS; return SWITCH_STATUS_SUCCESS;
} }