/*
* libjingle
* Copyright 2004 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.
*/
#include "talk/media/base/testutils.h"
#include <math.h>
#include <algorithm>
#include "talk/media/base/executablehelpers.h"
#include "talk/media/base/rtpdump.h"
#include "talk/media/base/videocapturer.h"
#include "talk/media/base/videoframe.h"
#include "webrtc/base/bytebuffer.h"
#include "webrtc/base/fileutils.h"
#include "webrtc/base/gunit.h"
#include "webrtc/base/pathutils.h"
#include "webrtc/base/stream.h"
#include "webrtc/base/stringutils.h"
#include "webrtc/base/testutils.h"
namespace cricket {
/////////////////////////////////////////////////////////////////////////
// Implementation of RawRtpPacket
/////////////////////////////////////////////////////////////////////////
void RawRtpPacket::WriteToByteBuffer(uint32_t in_ssrc,
rtc::ByteBuffer* buf) const {
if (!buf) return;
buf->WriteUInt8(ver_to_cc);
buf->WriteUInt8(m_to_pt);
buf->WriteUInt16(sequence_number);
buf->WriteUInt32(timestamp);
buf->WriteUInt32(in_ssrc);
buf->WriteBytes(payload, sizeof(payload));
}
bool RawRtpPacket::ReadFromByteBuffer(rtc::ByteBuffer* buf) {
if (!buf) return false;
bool ret = true;
ret &= buf->ReadUInt8(&ver_to_cc);
ret &= buf->ReadUInt8(&m_to_pt);
ret &= buf->ReadUInt16(&sequence_number);
ret &= buf->ReadUInt32(×tamp);
ret &= buf->ReadUInt32(&ssrc);
ret &= buf->ReadBytes(payload, sizeof(payload));
return ret;
}
bool RawRtpPacket::SameExceptSeqNumTimestampSsrc(const RawRtpPacket& packet,
uint16_t seq,
uint32_t ts,
uint32_t ssc) const {
return sequence_number == seq &&
timestamp == ts &&
ver_to_cc == packet.ver_to_cc &&
m_to_pt == packet.m_to_pt &&
ssrc == ssc &&
0 == memcmp(payload, packet.payload, sizeof(payload));
}
/////////////////////////////////////////////////////////////////////////
// Implementation of RawRtcpPacket
/////////////////////////////////////////////////////////////////////////
void RawRtcpPacket::WriteToByteBuffer(rtc::ByteBuffer *buf) const {
if (!buf) return;
buf->WriteUInt8(ver_to_count);
buf->WriteUInt8(type);
buf->WriteUInt16(length);
buf->WriteBytes(payload, sizeof(payload));
}
bool RawRtcpPacket::ReadFromByteBuffer(rtc::ByteBuffer* buf) {
if (!buf) return false;
bool ret = true;
ret &= buf->ReadUInt8(&ver_to_count);
ret &= buf->ReadUInt8(&type);
ret &= buf->ReadUInt16(&length);
ret &= buf->ReadBytes(payload, sizeof(payload));
return ret;
}
bool RawRtcpPacket::EqualsTo(const RawRtcpPacket& packet) const {
return ver_to_count == packet.ver_to_count &&
type == packet.type &&
length == packet.length &&
0 == memcmp(payload, packet.payload, sizeof(payload));
}
/////////////////////////////////////////////////////////////////////////
// Implementation of class RtpTestUtility
/////////////////////////////////////////////////////////////////////////
const RawRtpPacket RtpTestUtility::kTestRawRtpPackets[] = {
{0x80, 0, 0, 0, RtpTestUtility::kDefaultSsrc, "RTP frame 0"},
{0x80, 0, 1, 30, RtpTestUtility::kDefaultSsrc, "RTP frame 1"},
{0x80, 0, 2, 30, RtpTestUtility::kDefaultSsrc, "RTP frame 1"},
{0x80, 0, 3, 60, RtpTestUtility::kDefaultSsrc, "RTP frame 2"}
};
const RawRtcpPacket RtpTestUtility::kTestRawRtcpPackets[] = {
// The Version is 2, the Length is 2, and the payload has 8 bytes.
{0x80, 0, 2, "RTCP0000"},
{0x80, 0, 2, "RTCP0001"},
{0x80, 0, 2, "RTCP0002"},
{0x80, 0, 2, "RTCP0003"},
};
size_t RtpTestUtility::GetTestPacketCount() {
return std::min(arraysize(kTestRawRtpPackets),
arraysize(kTestRawRtcpPackets));
}
bool RtpTestUtility::WriteTestPackets(size_t count,
bool rtcp,
uint32_t rtp_ssrc,
RtpDumpWriter* writer) {
if (!writer || count > GetTestPacketCount()) return false;
bool result = true;
uint32_t elapsed_time_ms = 0;
for (size_t i = 0; i < count && result; ++i) {
rtc::ByteBuffer buf;
if (rtcp) {
kTestRawRtcpPackets[i].WriteToByteBuffer(&buf);
} else {
kTestRawRtpPackets[i].WriteToByteBuffer(rtp_ssrc, &buf);
}
RtpDumpPacket dump_packet(buf.Data(), buf.Length(), elapsed_time_ms, rtcp);
elapsed_time_ms += kElapsedTimeInterval;
result &= (rtc::SR_SUCCESS == writer->WritePacket(dump_packet));
}
return result;
}
bool RtpTestUtility::VerifyTestPacketsFromStream(size_t count,
rtc::StreamInterface* stream,
uint32_t ssrc) {
if (!stream) return false;
uint32_t prev_elapsed_time = 0;
bool result = true;
stream->Rewind();
RtpDumpLoopReader reader(stream);
for (size_t i = 0; i < count && result; ++i) {
// Which loop and which index in the loop are we reading now.
size_t loop = i / GetTestPacketCount();
size_t index = i % GetTestPacketCount();
RtpDumpPacket packet;
result &= (rtc::SR_SUCCESS == reader.ReadPacket(&packet));
// Check the elapsed time of the dump packet.
result &= (packet.elapsed_time >= prev_elapsed_time);
prev_elapsed_time = packet.elapsed_time;
// Check the RTP or RTCP packet.
rtc::ByteBuffer buf(reinterpret_cast<const char*>(&packet.data[0]),
packet.data.size());
if (packet.is_rtcp()) {
// RTCP packet.
RawRtcpPacket rtcp_packet;
result &= rtcp_packet.ReadFromByteBuffer(&buf);
result &= rtcp_packet.EqualsTo(kTestRawRtcpPackets[index]);
} else {
// RTP packet.
RawRtpPacket rtp_packet;
result &= rtp_packet.ReadFromByteBuffer(&buf);
result &= rtp_packet.SameExceptSeqNumTimestampSsrc(
kTestRawRtpPackets[index],
static_cast<uint16_t>(kTestRawRtpPackets[index].sequence_number +
loop * GetTestPacketCount()),
static_cast<uint32_t>(kTestRawRtpPackets[index].timestamp +
loop * kRtpTimestampIncrease),
ssrc);
}
}
stream->Rewind();
return result;
}
bool RtpTestUtility::VerifyPacket(const RtpDumpPacket* dump,
const RawRtpPacket* raw,
bool header_only) {
if (!dump || !raw) return false;
rtc::ByteBuffer buf;
raw->WriteToByteBuffer(RtpTestUtility::kDefaultSsrc, &buf);
if (header_only) {
size_t header_len = 0;
dump->GetRtpHeaderLen(&header_len);
return header_len == dump->data.size() &&
buf.Length() > dump->data.size() &&
0 == memcmp(buf.Data(), &dump->data[0], dump->data.size());
} else {
return buf.Length() == dump->data.size() &&
0 == memcmp(buf.Data(), &dump->data[0], dump->data.size());
}
}
// Implementation of VideoCaptureListener.
VideoCapturerListener::VideoCapturerListener(VideoCapturer* capturer)
: last_capture_state_(CS_STARTING),
frame_count_(0),
frame_fourcc_(0),
frame_width_(0),
frame_height_(0),
frame_size_(0),
resolution_changed_(false) {
capturer->SignalStateChange.connect(this,
&VideoCapturerListener::OnStateChange);
capturer->SignalFrameCaptured.connect(this,
&VideoCapturerListener::OnFrameCaptured);
}
void VideoCapturerListener::OnStateChange(VideoCapturer* capturer,
CaptureState result) {
last_capture_state_ = result;
}
void VideoCapturerListener::OnFrameCaptured(VideoCapturer* capturer,
const CapturedFrame* frame) {
++frame_count_;
if (1 == frame_count_) {
frame_fourcc_ = frame->fourcc;
frame_width_ = frame->width;
frame_height_ = frame->height;
frame_size_ = frame->data_size;
} else if (frame_width_ != frame->width || frame_height_ != frame->height) {
resolution_changed_ = true;
}
}
// Returns the absolute path to a file in the testdata/ directory.
std::string GetTestFilePath(const std::string& filename) {
// Locate test data directory.
#ifdef ENABLE_WEBRTC
rtc::Pathname path = rtc::GetExecutablePath();
EXPECT_FALSE(path.empty());
path.AppendPathname("../../talk/");
#else
rtc::Pathname path = testing::GetTalkDirectory();
EXPECT_FALSE(path.empty()); // must be run from inside "talk"
#endif
path.AppendFolder("media/testdata/");
path.SetFilename(filename);
return path.pathname();
}
// Loads the image with the specified prefix and size into |out|.
bool LoadPlanarYuvTestImage(const std::string& prefix,
int width,
int height,
uint8_t* out) {
std::stringstream ss;
ss << prefix << "." << width << "x" << height << "_P420.yuv";
rtc::scoped_ptr<rtc::FileStream> stream(
rtc::Filesystem::OpenFile(rtc::Pathname(
GetTestFilePath(ss.str())), "rb"));
if (!stream) {
return false;
}
rtc::StreamResult res =
stream->ReadAll(out, I420_SIZE(width, height), NULL, NULL);
return (res == rtc::SR_SUCCESS);
}
// Dumps the YUV image out to a file, for visual inspection.
// PYUV tool can be used to view dump files.
void DumpPlanarYuvTestImage(const std::string& prefix,
const uint8_t* img,
int w,
int h) {
rtc::FileStream fs;
char filename[256];
rtc::sprintfn(filename, sizeof(filename), "%s.%dx%d_P420.yuv",
prefix.c_str(), w, h);
fs.Open(filename, "wb", NULL);
fs.Write(img, I420_SIZE(w, h), NULL, NULL);
}
// Dumps the ARGB image out to a file, for visual inspection.
// ffplay tool can be used to view dump files.
void DumpPlanarArgbTestImage(const std::string& prefix,
const uint8_t* img,
int w,
int h) {
rtc::FileStream fs;
char filename[256];
rtc::sprintfn(filename, sizeof(filename), "%s.%dx%d_ARGB.raw",
prefix.c_str(), w, h);
fs.Open(filename, "wb", NULL);
fs.Write(img, ARGB_SIZE(w, h), NULL, NULL);
}
bool VideoFrameEqual(const VideoFrame* frame0, const VideoFrame* frame1) {
const uint8_t* y0 = frame0->GetYPlane();
const uint8_t* u0 = frame0->GetUPlane();
const uint8_t* v0 = frame0->GetVPlane();
const uint8_t* y1 = frame1->GetYPlane();
const uint8_t* u1 = frame1->GetUPlane();
const uint8_t* v1 = frame1->GetVPlane();
for (size_t i = 0; i < frame0->GetHeight(); ++i) {
if (0 != memcmp(y0, y1, frame0->GetWidth())) {
return false;
}
y0 += frame0->GetYPitch();
y1 += frame1->GetYPitch();
}
for (size_t i = 0; i < frame0->GetChromaHeight(); ++i) {
if (0 != memcmp(u0, u1, frame0->GetChromaWidth())) {
return false;
}
if (0 != memcmp(v0, v1, frame0->GetChromaWidth())) {
return false;
}
u0 += frame0->GetUPitch();
v0 += frame0->GetVPitch();
u1 += frame1->GetUPitch();
v1 += frame1->GetVPitch();
}
return true;
}
cricket::StreamParams CreateSimStreamParams(
const std::string& cname,
const std::vector<uint32_t>& ssrcs) {
cricket::StreamParams sp;
cricket::SsrcGroup sg(cricket::kSimSsrcGroupSemantics, ssrcs);
sp.ssrcs = ssrcs;
sp.ssrc_groups.push_back(sg);
sp.cname = cname;
return sp;
}
// There should be an rtx_ssrc per ssrc.
cricket::StreamParams CreateSimWithRtxStreamParams(
const std::string& cname,
const std::vector<uint32_t>& ssrcs,
const std::vector<uint32_t>& rtx_ssrcs) {
cricket::StreamParams sp = CreateSimStreamParams(cname, ssrcs);
for (size_t i = 0; i < ssrcs.size(); ++i) {
sp.ssrcs.push_back(rtx_ssrcs[i]);
std::vector<uint32_t> fid_ssrcs;
fid_ssrcs.push_back(ssrcs[i]);
fid_ssrcs.push_back(rtx_ssrcs[i]);
cricket::SsrcGroup fid_group(cricket::kFidSsrcGroupSemantics, fid_ssrcs);
sp.ssrc_groups.push_back(fid_group);
}
return sp;
}
} // namespace cricket