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

101 lines
3.4 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 kCodecAV1:
return "AV1";
case kCodecH264:
return "H264";
case kCodecH265:
return "H265";
case kCodecH265DolbyVision:
return "H265 Dolby Vision";
case kCodecVP8:
return "VP8";
case kCodecVP9:
return "VP9";
default:
NOTIMPLEMENTED() << "Unknown Video Codec: " << codec;
return "UnknownCodec";
}
}
} // namespace
VideoStreamInfo::VideoStreamInfo(int track_id,
uint32_t time_scale,
uint64_t duration,
Codec codec,
H26xStreamFormat h26x_stream_format,
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,
uint8_t transfer_characteristics,
uint32_t trick_play_factor,
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),
h26x_stream_format_(h26x_stream_format),
width_(width),
height_(height),
pixel_width_(pixel_width),
pixel_height_(pixel_height),
transfer_characteristics_(transfer_characteristics),
trick_play_factor_(trick_play_factor),
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_factor: %d\n nalu_length_size: %d\n",
StreamInfo::ToString().c_str(), VideoCodecToString(codec()).c_str(),
width_, height_, pixel_width_, pixel_height_, trick_play_factor_,
nalu_length_size_);
}
std::unique_ptr<StreamInfo> VideoStreamInfo::Clone() const {
return std::unique_ptr<StreamInfo>(new VideoStreamInfo(*this));
}
} // namespace media
} // namespace shaka