108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
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/*
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* Copyright (c) 2011 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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/*
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* vie_file_image.cc
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*/
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#include <stdio.h>
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#include "vie_file_image.h"
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#include "jpeg.h"
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#include "trace.h"
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namespace webrtc {
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int ViEFileImage::ConvertJPEGToVideoFrame(int engineId,
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const char* fileNameUTF8,
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VideoFrame& videoFrame)
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{
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// read jpeg file into temporary buffer
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WebRtc_UWord8* imageBuffer;
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WebRtc_UWord32 imageBufferSize;
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FILE* imageFile = fopen(fileNameUTF8, "rb");
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if (NULL == imageFile)
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{
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// error reading file
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, engineId,
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"%s could not open file %s", __FUNCTION__, fileNameUTF8);
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return -1;
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}
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fseek(imageFile, 0, SEEK_END);
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imageBufferSize = ftell(imageFile);
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fseek(imageFile, 0, SEEK_SET);
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imageBuffer = new WebRtc_UWord8[imageBufferSize + 1];
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if (imageBufferSize != fread(imageBuffer, sizeof(WebRtc_UWord8),
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imageBufferSize, imageFile))
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, engineId,
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"%s could not read file %s", __FUNCTION__, fileNameUTF8);
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delete imageBuffer;
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return -1;
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}
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fclose(imageFile);
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// if this is a jpeg file, decode it
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JpegDecoder decoder;
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int ret = 0;
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WebRtc_UWord8* imageDecodedBuffer = NULL;
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WebRtc_UWord32 imageWidth, imageHeight = 0;
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ret = decoder.Decode(imageBuffer, imageBufferSize, imageDecodedBuffer,
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imageWidth, imageHeight);
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// done with this.
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delete imageBuffer;
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if (-1 == ret)
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{
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// error decoding the file
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, engineId,
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"%s could decode file %s from jpeg format", __FUNCTION__,
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fileNameUTF8);
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return -1;
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} else if (-3 == ret)
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{
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WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideo, engineId,
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"%s could not convert jpeg's data to i420 format",
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__FUNCTION__, fileNameUTF8);
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}
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WebRtc_UWord32 imageLength = (WebRtc_UWord32)(imageWidth * imageHeight
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* 1.5);
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if (-1 == videoFrame.Swap(imageDecodedBuffer, imageLength, imageLength))
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{
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WEBRTC_TRACE(
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webrtc::kTraceDebug,
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webrtc::kTraceVideo,
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engineId,
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"%s could not copy frame imageDecodedBuffer to frame videoFrame ",
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__FUNCTION__, fileNameUTF8);
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return -1;
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}
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videoFrame.SetWidth(imageWidth);
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videoFrame.SetHeight(imageHeight);
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return 0;
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}
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int ViEFileImage::ConvertPictureToVideoFrame(int engineId,
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const ViEPicture& picture,
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VideoFrame& videoFrame)
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{
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WebRtc_UWord32 pictureLength = (WebRtc_UWord32)(picture.width
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* picture.height * 1.5);
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videoFrame.CopyFrame(pictureLength, picture.data);
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videoFrame.SetWidth(picture.width);
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videoFrame.SetHeight(picture.height);
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videoFrame.SetLength(pictureLength);
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return 0;
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}
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} // namespace webrtc
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