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提交 897ec20c authored 作者: Seven Du's avatar Seven Du 提交者： Michael Jerris
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WIP add mod_webm, video is working, audio is not

上级 66dd1bc8
隐藏空白字符变更
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正在显示 包含 480 行增加 和 0 行删除
src/mod/formats/mod_webm/mod_webm.cpp 0 → 100644
浏览文件 @ 897ec20c
/*
* 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_webm -- webm File Format support using libwebm.
*
*/
#include <switch.h>
// #include "mkvreader.hpp"
// #include "mkvparser.hpp"
// #include "mkvmuxer.hpp"
#include "mkvwriter.hpp"
// #include "mkvmuxerutil.hpp"
// #include "sample_muxer_metadata.h"
// using mkvmuxer::int64;
// using mkvmuxer::uint64;
#ifdef _MSC_VER
// Disable MSVC warnings that suggest making code non-portable.
#pragma warning(disable : 4996)
#endif
SWITCH_MODULE_LOAD_FUNCTION(mod_webm_load);
SWITCH_MODULE_DEFINITION(mod_webm, mod_webm_load, NULL, NULL);
#define IS_VP8_KEY_FRAME(byte) ((((byte) & 0x01) ^ 0x01) ? true : false)
#define IS_VP9_KEY_FRAME(byte) (((byte) & 0x01) ? true : false)
struct webm_file_context {
switch_memory_pool_t *pool;
mkvmuxer::AudioTrack* audio;
mkvmuxer::VideoTrack* video;
uint64_t audio_track_id;
uint64_t video_track_id;
switch_codec_t audio_codec;
switch_codec_t video_codec;
switch_mutex_t *mutex;
switch_buffer_t *buf;
switch_timer_t timer;
// uint64_t last_pts;
int offset;
uint64_t audio_duration;
int audio_start;
mkvmuxer::MkvWriter *writer;
mkvmuxer::Segment *segment;
};
typedef struct webm_file_context webm_file_context_t;
static switch_status_t webm_file_open(switch_file_handle_t *handle, const char *path)
{
webm_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 = (webm_file_context_t *)switch_core_alloc(handle->memory_pool, sizeof(webm_file_context_t))) == 0) {
return SWITCH_STATUS_MEMERR;
}
memset(context, 0, sizeof(webm_file_context_t));
context->offset = -100;
if (handle->params && (tmp = switch_event_get_header(handle->params, "webmv2_video_offset"))) {
context->offset = atoi(tmp);
}
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;
}
context->writer = new mkvmuxer::MkvWriter();
if (!context->writer->Open(path)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error opening file %s\n", path);
return SWITCH_STATUS_GENERR;
}
context->segment = new mkvmuxer::Segment();
if (!context->segment || !context->segment->Init(context->writer)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error init segment\n");
return SWITCH_STATUS_GENERR;
}
// context->segment.set_mode(mkvmuxer::Segment::kLive);
context->segment->set_mode(mkvmuxer::Segment::kFile);
context->segment->OutputCues(true);
mkvmuxer::SegmentInfo* const info = context->segment->GetSegmentInfo();
info->set_timecode_scale(1000000);
info->set_writing_app(switch_version_full());
context->audio_track_id = context->segment->AddAudioTrack(handle->samplerate, handle->channels, 1);
if (!context->audio_track_id) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error add audio track!\n");
goto end;
}
context->audio = static_cast<mkvmuxer::AudioTrack*>(context->segment->GetTrackByNumber(context->audio_track_id));
context->audio->set_codec_id("A_OPUS"); // or A_VORBIS
// context->audio->set_bit_depth(8);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "sample rate: %d, channels: %d\n", handle->samplerate, 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;
// handle->flags |= SWITCH_FILE_NATIVE;
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,
"OPUS",
NULL, //"useinbandfec=1; minptime=10; stereo=1",
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,
"VP8",
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 (1) { // for better quality?
int bw = 4096;
switch_core_codec_control(&context->video_codec, SCC_VIDEO_BANDWIDTH, SCCT_INT, (void *)&bw, NULL, NULL);
}
switch_buffer_create_dynamic(&context->buf, 512, 512, 1024000);
return SWITCH_STATUS_SUCCESS;
end:
if (context->segment) delete context->segment;
if (context->writer) delete context->writer;
return SWITCH_STATUS_FALSE;
}
static switch_status_t webm_file_truncate(switch_file_handle_t *handle, int64_t offset)
{
webm_file_context_t *context = (webm_file_context_t *)handle->private_info;
switch_status_t status = SWITCH_STATUS_FALSE;
return status;
}
static switch_status_t webm_file_close(switch_file_handle_t *handle)
{
webm_file_context_t *context = (webm_file_context_t *)handle->private_info;
context->segment->Finalize();
delete context->segment;
delete context->writer;
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_buffer_destroy(&context->buf);
return SWITCH_STATUS_SUCCESS;
}
static switch_status_t webm_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 webm_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 webm_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;
webm_file_context_t *context = (webm_file_context_t *)handle->private_info;
uint32_t size = 0;
context->audio_duration += *len;
if (switch_test_flag(handle, SWITCH_FILE_NATIVE)) {
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
}
if (size > 0) {
// timecode still need to figure out for sync
switch_core_timer_sync(&context->timer);
bool ret = context->segment->AddFrame(buf, size, context->audio_track_id, context->timer.samplecount * 1000000, true);
// bool ret = context->segment->AddFrame((const uint8_t *)data, used, context->audio_track_id, context->audio_duration * 1000000, is_key);
if (!ret) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error writing audio %d bytes\n", size);
}
context->audio_duration = 0;
}
switch_mutex_unlock(context->mutex);
return status;
}
static switch_status_t webm_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 buffer_vp8_packets(webm_file_context_t *context, switch_frame_t *frame, bool *is_keyframe)
{
uint8_t *data = (uint8_t *)frame->data;
uint8_t S;
uint8_t DES;
uint8_t PID;
int len;
DES = *data;
data++;
S = DES & 0x10;
PID = DES & 0x07;
if (DES & 0x80) { // X
uint8_t X = *data;
data++;
if (X & 0x80) { // I
uint8_t M = (*data) & 0x80;
data++;
if (M) data++;
}
if (X & 0x40) data++; // L
if (X & 0x30) data++; // T/K
}
len = frame->datalen - (data - (uint8_t *)frame->data);
if (len <= 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Invalid packet %d\n", len);
return SWITCH_STATUS_RESTART;
}
if (S && (PID == 0)) {
*is_keyframe = IS_VP8_KEY_FRAME(*data);
}
switch_buffer_write(context->buf, data, len);
return SWITCH_STATUS_SUCCESS;
}
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;
uint8_t *hdr = NULL;
uint8_t start_bit;
uint32_t used;
bool is_key = false;
webm_file_context_t *context = (webm_file_context_t *)handle->private_info;
hdr = (uint8_t *)frame->data;
switch_assert(frame->img);
// 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_mutex_lock(context->mutex);
if (!context->video) {
context->video_track_id = context->segment->AddVideoTrack(frame->img->d_w, frame->img->d_h, 0);
if (!context->video_track_id) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error add video track!\n");
switch_goto_status(SWITCH_STATUS_FALSE, end);
}
context->video = static_cast<mkvmuxer::VideoTrack*>(context->segment->GetTrackByNumber(context->video_track_id));
context->video->SetStereoMode(0);
context->video->set_codec_id("V_VP8");
context->video->set_uid(0xDEADBEEF); // debug ?
}
buffer_vp8_packets(context, frame, &is_key);
if (frame->m && (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);
}
switch_buffer_peek_zerocopy(context->buf, &data);
// switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "samplecount: %u\n", context->timer.samplecount);
bool ret = false;
ret = context->segment->AddFrame((const uint8_t *)data, used, context->video_track_id, context->timer.samplecount * 1000000LL, is_key);
if (!ret) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Error add frame %d bytes, timecode: %llu\n", used, context->timer.samplecount * 1000000LL);
switch_goto_status(SWITCH_STATUS_FALSE, end);
}
switch_buffer_zero(context->buf);
}
end:
switch_mutex_unlock(context->mutex);
return status;
}
static switch_status_t webm_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;
webm_file_context_t *context = (webm_file_context_t *)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];
eframe.data = data + 12;
eframe.datalen = SWITCH_RECOMMENDED_BUFFER_SIZE - 12;
eframe.img = frame->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);
}
return status;
}
static switch_status_t webm_file_set_string(switch_file_handle_t *handle, switch_audio_col_t col, const char *string)
{
return SWITCH_STATUS_FALSE;
}
static switch_status_t webm_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_webm_load)
{
switch_file_interface_t *file_interface;
supported_formats[0] = (char *)"webm";
/* connect my internal structure to the blank pointer passed to me */
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
file_interface = (switch_file_interface_t *)switch_loadable_module_create_interface(*module_interface, SWITCH_FILE_INTERFACE);
file_interface->interface_name = modname;
file_interface->extens = supported_formats;
file_interface->file_open = webm_file_open;
file_interface->file_close = webm_file_close;
file_interface->file_truncate = webm_file_truncate;
file_interface->file_read = webm_file_read;
file_interface->file_write = webm_file_write;
file_interface->file_read_video = webm_file_read_video;
file_interface->file_write_video = webm_file_write_video;
file_interface->file_seek = webm_file_seek;
file_interface->file_set_string = webm_file_set_string;
file_interface->file_get_string = webm_file_get_string;
/* 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 noet:
*/
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