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Java MediaExtractor.getSampleFlags方法代码示例

本文整理汇总了Java中android.media.MediaExtractor.getSampleFlags方法的典型用法代码示例。如果您正苦于以下问题:Java MediaExtractor.getSampleFlags方法的具体用法?Java MediaExtractor.getSampleFlags怎么用?Java MediaExtractor.getSampleFlags使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在android.media.MediaExtractor的用法示例。


在下文中一共展示了MediaExtractor.getSampleFlags方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: readAndWriteTrack

import android.media.MediaExtractor; //导入方法依赖的package包/类
@TargetApi(16)
private long readAndWriteTrack(final MessageObject messageObject, MediaExtractor extractor, MP4Builder mediaMuxer, MediaCodec.BufferInfo info, long start, long end, File file, boolean isAudio) throws Exception {
    int trackIndex = selectTrack(extractor, isAudio);
    if (trackIndex >= 0) {
        extractor.selectTrack(trackIndex);
        MediaFormat trackFormat = extractor.getTrackFormat(trackIndex);
        int muxerTrackIndex = mediaMuxer.addTrack(trackFormat, isAudio);
        int maxBufferSize = trackFormat.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE);
        boolean inputDone = false;
        if (start > 0) {
            extractor.seekTo(start, MediaExtractor.SEEK_TO_PREVIOUS_SYNC);
        } else {
            extractor.seekTo(0, MediaExtractor.SEEK_TO_PREVIOUS_SYNC);
        }
        ByteBuffer buffer = ByteBuffer.allocateDirect(maxBufferSize);
        long startTime = -1;

        checkConversionCanceled();
        long lastTimestamp = -100;

        while (!inputDone) {
            checkConversionCanceled();

            boolean eof = false;
            int index = extractor.getSampleTrackIndex();
            if (index == trackIndex) {
                info.size = extractor.readSampleData(buffer, 0);
                if (info.size >= 0) {
                    info.presentationTimeUs = extractor.getSampleTime();
                } else {
                    info.size = 0;
                    eof = true;
                }

                if (info.size > 0 && !eof) {
                    if (start > 0 && startTime == -1) {
                        startTime = info.presentationTimeUs;
                    }
                    if (end < 0 || info.presentationTimeUs < end) {
                        if (info.presentationTimeUs > lastTimestamp) {
                            info.offset = 0;
                            info.flags = extractor.getSampleFlags();
                            if (mediaMuxer.writeSampleData(muxerTrackIndex, buffer, info, isAudio)) {
                                didWriteData(messageObject, file, false, false);
                            }
                        }
                        lastTimestamp = info.presentationTimeUs;
                    } else {
                        eof = true;
                    }
                }
                if (!eof) {
                    extractor.advance();
                }
            } else if (index == -1) {
                eof = true;
            } else {
                extractor.advance();
            }
            if (eof) {
                inputDone = true;
            }
        }

        extractor.unselectTrack(trackIndex);
        return startTime;
    }
    return -1;
}
 
开发者ID:MLNO,项目名称:airgram,代码行数:70,代码来源:MediaController.java

示例2: readAndWriteTrack

import android.media.MediaExtractor; //导入方法依赖的package包/类
@TargetApi(16)
private long readAndWriteTrack(MediaExtractor extractor, MP4Builder mediaMuxer, MediaCodec.BufferInfo info, long start, long end, File file, boolean isAudio) throws Exception {
    int trackIndex = selectTrack(extractor, isAudio);
    if (trackIndex >= 0) {
        extractor.selectTrack(trackIndex);
        MediaFormat trackFormat = extractor.getTrackFormat(trackIndex);
        int muxerTrackIndex = mediaMuxer.addTrack(trackFormat, isAudio);
        int maxBufferSize = trackFormat.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE);
        boolean inputDone = false;
        if (start > 0) {
            extractor.seekTo(start, MediaExtractor.SEEK_TO_PREVIOUS_SYNC);
        } else {
            extractor.seekTo(0, MediaExtractor.SEEK_TO_PREVIOUS_SYNC);
        }
        ByteBuffer buffer = ByteBuffer.allocateDirect(maxBufferSize);
        long startTime = -1;

        while (!inputDone) {

            boolean eof = false;
            int index = extractor.getSampleTrackIndex();
            if (index == trackIndex) {
                info.size = extractor.readSampleData(buffer, 0);

                if (info.size < 0) {
                    info.size = 0;
                    eof = true;
                } else {
                    info.presentationTimeUs = extractor.getSampleTime();
                    if (start > 0 && startTime == -1) {
                        startTime = info.presentationTimeUs;
                    }
                    if (end < 0 || info.presentationTimeUs < end) {
                        info.offset = 0;
                        info.flags = extractor.getSampleFlags();
                        if (mediaMuxer.writeSampleData(muxerTrackIndex, buffer, info, isAudio)) {
                            // didWriteData(messageObject, file, false, false);
                        }
                        extractor.advance();
                    } else {
                        eof = true;
                    }
                }
            } else if (index == -1) {
                eof = true;
            }
            if (eof) {
                inputDone = true;
            }
        }

        extractor.unselectTrack(trackIndex);
        return startTime;
    }
    return -1;
}
 
开发者ID:fishwjy,项目名称:VideoCompressor,代码行数:57,代码来源:VideoController.java


注:本文中的android.media.MediaExtractor.getSampleFlags方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。