77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
// Copyright 2014 Google Inc. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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#ifndef MEDIA_BASE_VIDEO_STREAM_INFO_H_
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#define MEDIA_BASE_VIDEO_STREAM_INFO_H_
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#include "packager/media/base/stream_info.h"
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namespace shaka {
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namespace media {
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/// Holds video stream information.
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class VideoStreamInfo : public StreamInfo {
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public:
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/// Construct an initialized video stream info object.
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/// @param pixel_width is the width of the pixel. 0 if unknown.
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/// @param pixel_height is the height of the pixels. 0 if unknown.
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VideoStreamInfo(int track_id, uint32_t time_scale, uint64_t duration,
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Codec codec, const std::string& codec_string,
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const uint8_t* codec_config, size_t codec_config_size,
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uint16_t width, uint16_t height, uint32_t pixel_width,
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uint32_t pixel_height, int16_t trick_play_rate,
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uint8_t nalu_length_size, const std::string& language,
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bool is_encrypted);
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/// @name StreamInfo implementation overrides.
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/// @{
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bool IsValidConfig() const override;
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std::string ToString() const override;
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/// @}
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uint16_t width() const { return width_; }
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uint16_t height() const { return height_; }
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/// Returns the pixel width.
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/// @return 0 if unknown.
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uint32_t pixel_width() const { return pixel_width_; }
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/// Returns the pixel height.
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/// @return 0 if unknown.
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uint32_t pixel_height() const { return pixel_height_; }
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uint8_t nalu_length_size() const { return nalu_length_size_; }
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int16_t trick_play_rate() const { return trick_play_rate_; }
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void set_width(uint32_t width) { width_ = width; }
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void set_height(uint32_t height) { height_ = height; }
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void set_pixel_width(uint32_t pixel_width) { pixel_width_ = pixel_width; }
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void set_pixel_height(uint32_t pixel_height) { pixel_height_ = pixel_height; }
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private:
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~VideoStreamInfo() override;
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uint16_t width_;
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uint16_t height_;
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// pixel_width_:pixel_height_ is the sample aspect ratio.
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// 0 means unknown.
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uint32_t pixel_width_;
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uint32_t pixel_height_;
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int16_t trick_play_rate_; // Non-zero for trick-play streams.
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// Specifies the normalized size of the NAL unit length field. Can be 1, 2 or
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// 4 bytes, or 0 if the size if unknown or the stream is not a AVC stream
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// (H.264).
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uint8_t nalu_length_size_;
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// Not using DISALLOW_COPY_AND_ASSIGN here intentionally to allow the compiler
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// generated copy constructor and assignment operator. Since the extra data is
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// typically small, the performance impact is minimal.
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};
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} // namespace media
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} // namespace shaka
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#endif // MEDIA_BASE_VIDEO_STREAM_INFO_H_
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