110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
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/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_TOOLS_CONVERTER_CONVERTER_H_
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#define WEBRTC_TOOLS_CONVERTER_CONVERTER_H_
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#include <string>
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#include "libyuv/compare.h" // NOLINT
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#include "libyuv/convert.h" // NOLINT
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namespace webrtc {
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namespace test {
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// Handles a conversion between a set of RGBA frames to a YUV (I420) video.
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class Converter {
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public:
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Converter(int width, int height);
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// Converts RGBA to YUV video. If the delete_frames argument is true, the
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// method will delete the input frames after conversion.
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bool ConvertRGBAToI420Video(std::string frames_dir,
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std::string output_file_name, bool delete_frames);
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private:
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int width_; // Width of the video (respectively of the RGBA frames).
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int height_; // Height of the video (respectively of the RGBA frames).
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// Returns the size of the Y plane in bytes.
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int YPlaneSize() const {
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return width_*height_;
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}
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// Returns the size of the U plane in bytes.
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int UPlaneSize() const {
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return ((width_+1)/2)*((height_)/2);
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}
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// Returns the size of the V plane in bytes.
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int VPlaneSize() const {
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return ((width_+1)/2)*((height_)/2);
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}
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// Returns the number of bytes per row in the RGBA frame.
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int SrcStrideFrame() const {
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return width_*4;
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}
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// Returns the number of bytes in the Y plane.
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int DstStrideY() const {
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return width_;
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}
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// Returns the number of bytes in the U plane.
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int DstStrideU() const {
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return (width_+1)/2;
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}
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// Returns the number of bytes in the V plane.
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int DstStrideV() const {
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return (width_+1)/2;
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}
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// Returns the size in bytes of the input RGBA frames.
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int InputFrameSize() const {
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return width_*height_*4;
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}
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// Writes the Y, U and V (in this order) planes to the file, thus adding a
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// raw YUV frame to the file.
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bool AddYUVToFile(uint8_t* y_plane,
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int y_plane_size,
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uint8_t* u_plane,
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int u_plane_size,
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uint8_t* v_plane,
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int v_plane_size,
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FILE* output_file);
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// Adds the Y, U or V plane to the file.
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bool AddYUVPlaneToFile(uint8_t* yuv_plane, int yuv_plane_size, FILE* file);
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// Reads a RGBA frame from input_file_name with input_frame_size size in bytes
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// into the buffer.
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bool ReadRGBAFrame(const char* input_file_name, int input_frame_size,
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unsigned char* buffer);
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// Finds the full path name of the file - concatenates the directory and file
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// names.
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std::string FindFullFileName(std::string dir_name, std::string file_name);
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// Checks if a file exists.
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bool FileExists(std::string file_name_to_check);
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// Returns the name of the file in the form frame_<number>, where <number> is
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// 4 zero padded (i.e. frame_0000, frame_0001, etc.).
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std::string FormFrameName(int width, int number);
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};
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} // namespace test
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} // namespace webrtc
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#endif // WEBRTC_TOOLS_CONVERTER_CONVERTER_H_
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