shaka-packager/packager/media/base/video_stream_info.cc

85 lines
2.6 KiB
C++

// Copyright 2014 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
#include "packager/media/base/video_stream_info.h"
#include "packager/base/logging.h"
#include "packager/base/strings/string_number_conversions.h"
#include "packager/base/strings/string_util.h"
#include "packager/base/strings/stringprintf.h"
#include "packager/media/base/limits.h"
namespace shaka {
namespace media {
namespace {
std::string VideoCodecToString(Codec codec) {
switch (codec) {
case kCodecH264:
return "H264";
case kCodecHEV1:
return "HEV1";
case kCodecHVC1:
return "HVC1";
case kCodecVC1:
return "VC1";
case kCodecMPEG2:
return "MPEG2";
case kCodecMPEG4:
return "MPEG4";
case kCodecTheora:
return "Theora";
case kCodecVP8:
return "VP8";
case kCodecVP9:
return "VP9";
case kCodecVP10:
return "VP10";
default:
NOTIMPLEMENTED() << "Unknown Video Codec: " << codec;
return "UnknownCodec";
}
}
} // namespace
VideoStreamInfo::VideoStreamInfo(
int track_id, uint32_t time_scale, uint64_t duration, Codec codec,
const std::string& codec_string, const uint8_t* codec_config,
size_t codec_config_size, uint16_t width, uint16_t height,
uint32_t pixel_width, uint32_t pixel_height, int16_t trick_play_rate,
uint8_t nalu_length_size, const std::string& language, bool is_encrypted)
: StreamInfo(kStreamVideo, track_id, time_scale, duration, codec,
codec_string, codec_config, codec_config_size, language,
is_encrypted),
width_(width),
height_(height),
pixel_width_(pixel_width),
pixel_height_(pixel_height),
trick_play_rate_(trick_play_rate),
nalu_length_size_(nalu_length_size) {}
VideoStreamInfo::~VideoStreamInfo() {}
bool VideoStreamInfo::IsValidConfig() const {
return codec() != kUnknownCodec && width_ > 0 &&
width_ <= limits::kMaxDimension && height_ > 0 &&
height_ <= limits::kMaxDimension &&
(nalu_length_size_ <= 2 || nalu_length_size_ == 4);
}
std::string VideoStreamInfo::ToString() const {
return base::StringPrintf(
"%s codec: %s\n width: %d\n height: %d\n pixel_aspect_ratio: %d:%d\n "
"trick_play_rate: %d\n nalu_length_size: %d\n",
StreamInfo::ToString().c_str(), VideoCodecToString(codec()).c_str(),
width_, height_, pixel_width_, pixel_height_, trick_play_rate_,
nalu_length_size_);
}
} // namespace media
} // namespace shaka