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/*
* libjingle
* Copyright 2004--2005, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
// GipsLiteMediaEngine is a GIPS Voice Engine Lite implementation of MediaEngine
#include "talk/base/logging.h"
#include <cassert>
#include <iostream>
#include "gipslitemediaengine.h"
using namespace cricket;
#if 0
#define TRACK(x) LOG(LS_VERBOSE) << x
#else
#define TRACK(x)
#endif
//#define GIPS_TRACING
namespace {
struct CodecPref { const char* name; int clockrate; int pref; };
const CodecPref kGIPSCodecPrefs[] = {
{ "ISAC", 1600, 7 },
{ "speex", 1600, 6 },
{ "IPCMWB", 1600, 6},
{ "speex", 8000, 4},
{ "iLBC", 8000, 1 },
{ "G723", 8000, 4 },
{ "EG711U", 8000, 3 },
{ "EG711A", 8000, 3 },
{ "PCMU", 8000, 2 },
{ "PCMA", 8000, 2 },
{ "CN", 8000, 2 },
{ "red", 8000, -1 },
{ "telephone-event", 8000, -1 }
};
const size_t kNumGIPSCodecs = sizeof(kGIPSCodecPrefs) / sizeof(CodecPref);
}
void GipsLiteMediaChannel::SetCodecs(const std::vector<Codec> &codecs) {
GIPS_CodecInst c;
std::vector<Codec>::const_iterator i;
bool first = true;
for (i = codecs.begin(); i < codecs.end(); i++) {
if (engine_->FindGIPSCodec(*i, &c) == false)
continue;
if (c.pltype != i->id) {
c.pltype = i->id;
engine_->gips().GIPSVE_SetRecPayloadType(gips_channel_, &c);
}
if (first) {
LOG(LS_INFO) << "Using " << c.plname << "/" << c.plfreq;
engine_->gips().GIPSVE_SetSendCodec(gips_channel_, &c);
first = false;
}
}
if (first) {
// We're being asked to set an empty list of codecs. This will only happen when
// dealing with a buggy client. We'll send them the most common format: PCMU
Codec codec(0, "PCMU", 8000, 0, 1, 0);
LOG(LS_WARNING) << "Received empty list of codces; using PCMU/8000";
engine_->FindGIPSCodec(codec, &c);
engine_->gips().GIPSVE_SetSendCodec(gips_channel_, &c);
}
}
void GipsLiteMediaChannel::OnPacketReceived(const void *data, int len) {
engine_->gips().GIPSVE_ReceivedRTPPacket(gips_channel_, data, (int)len);
}
void GipsLiteMediaChannel::SetPlayout(bool playout) {
if (playout)
engine_->gips().GIPSVE_StartPlayout(gips_channel_);
else
engine_->gips().GIPSVE_StopPlayout(gips_channel_);
}
void GipsLiteMediaChannel::SetSend(bool send) {
if (send)
engine_->gips().GIPSVE_StartSend(gips_channel_);
else
engine_->gips().GIPSVE_StopSend(gips_channel_);
}
GipsLiteMediaChannel::GipsLiteMediaChannel(GipsLiteMediaEngine *engine) {
network_interface_ = NULL;
engine_ = engine;
gips_channel_ = engine_->gips().GIPSVE_CreateChannel();
engine_->gips().GIPSVE_SetSendTransport(gips_channel_, *this);
}
int GipsLiteMediaEngine::GetGIPSCodecPreference(const char *name, int clockrate) {
for (size_t i = 0; i < kNumGIPSCodecs; ++i) {
if ((strcmp(kGIPSCodecPrefs[i].name, name) == 0) &&
(kGIPSCodecPrefs[i].clockrate == clockrate))
return kGIPSCodecPrefs[i].pref;
}
assert(false);
return -1;
}
GipsLiteMediaEngine::GipsLiteMediaEngine() :
gips_(GetGipsVoiceEngineLite()) {}
bool GipsLiteMediaEngine::Init() {
TRACK("GIPSVE_Init");
if (gips_.GIPSVE_Init() == -1)
return false;
char buffer[1024];
TRACK("GIPSVE_GetVersion");
int r = gips_.GIPSVE_GetVersion(buffer, sizeof(buffer));
LOG(LS_INFO) << "GIPS Version: " << r << ": " << buffer;
// Set auto gain control on
TRACK("GIPSVE_SetAGCStatus");
if (gips_.GIPSVE_SetAGCStatus(1) == -1)
return false;
TRACK("GIPSVE_GetNofCodecs");
int ncodecs = gips_.GIPSVE_GetNofCodecs();
for (int i = 0; i < ncodecs; ++i) {
GIPS_CodecInst gips_codec;
if (gips_.GIPSVE_GetCodec(i, &gips_codec) >= 0) {
Codec codec(gips_codec.pltype, gips_codec.plname, gips_codec.plfreq, gips_codec.rate,
gips_codec.channels, GetGIPSCodecPreference(gips_codec.plname, gips_codec.plfreq));
LOG(LS_INFO) << gips_codec.plname << "/" << gips_codec.plfreq << "/" << gips_codec.channels << " " << gips_codec.pltype;
codecs_.push_back(codec);
}
}
return true;
}
void GipsLiteMediaEngine::Terminate() {
gips_.GIPSVE_Terminate();
}
MediaChannel * GipsLiteMediaEngine::CreateChannel() {
return new GipsLiteMediaChannel(this);
}
bool GipsLiteMediaEngine::FindGIPSCodec(Codec codec, GIPS_CodecInst* gips_codec) {
int ncodecs = gips_.GIPSVE_GetNofCodecs();
for (int i = 0; i < ncodecs; ++i) {
GIPS_CodecInst gc;
if (gips_.GIPSVE_GetCodec(i, &gc) >= 0) {
if (codec.id < 96) {
// Compare by id
if (codec.id != gc.pltype)
continue;
} else {
// Compare by name
if (strcmp(codec.name.c_str(), gc.plname) != 0)
continue;
}
// If the clockrate is specified, make sure it matches
if (codec.clockrate > 0 && codec.clockrate != gc.plfreq)
continue;
// If the bitrate is specified, make sure it matches
if (codec.bitrate > 0 && codec.bitrate != gc.rate)
continue;
// Make sure the channels match
if (codec.channels != gc.channels)
continue;
// If we got this far, we match.
if (gips_codec)
*gips_codec = gc;
return true;
}
}
return false;
}
int GipsLiteMediaEngine::SetAudioOptions(int options) {
// Set auto gain control on
if (gips_.GIPSVE_SetAGCStatus(options & AUTO_GAIN_CONTROL ? 1 : 0) == -1) {
return -1;
// TODO: We need to log these failures.
}
return 0;
}
int GipsLiteMediaEngine::SetSoundDevices(int wave_in_device, int wave_out_device) {
if (gips_.GIPSVE_SetSoundDevices(wave_in_device, wave_out_device) == -1) {
int error = gips_.GIPSVE_GetLastError();
// TODO: We need to log these failures.
return error;
}
return 0;
}
bool GipsLiteMediaEngine::FindCodec(const Codec &codec)
{
return FindGIPSCodec(codec, NULL);
}
std::vector<Codec> GipsLiteMediaEngine::codecs()
{
return codecs_;
}
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