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parse media format data

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parse media format data
pull/107/head
xufulong 5 years ago
parent 67c6d57112
commit 16c095f5c7
1 changed files with 152 additions and 0 deletions
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  1. 152
      app/src/main/java/com/frank/ffmpeg/tool/JsonParseTool.java

152
app/src/main/java/com/frank/ffmpeg/tool/JsonParseTool.java
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package com.frank.ffmpeg.tool;
import android.text.TextUtils;
import android.util.Log;
import com.frank.ffmpeg.model.AudioBean;
import com.frank.ffmpeg.model.MediaBean;
import com.frank.ffmpeg.model.VideoBean;
import org.json.JSONArray;
import org.json.JSONObject;
/**
* the tool of parsing json
* Created by frank on 2020/1/8.
*/
public class JsonParseTool {
private final static String TAG = JsonParseTool.class.getSimpleName();
private final static String TYPE_VIDEO = "video";
private final static String TYPE_AUDIO = "audio";
public static MediaBean parseMediaFormat(String mediaFormat) {
if (mediaFormat == null || mediaFormat.isEmpty()) {
return null;
}
MediaBean mediaBean = null;
try {
JSONObject jsonMedia = new JSONObject(mediaFormat);
JSONObject jsonMediaFormat = jsonMedia.getJSONObject("format");
mediaBean = new MediaBean();
int streamNum = jsonMediaFormat.optInt("nb_streams");
mediaBean.setStreamNum(streamNum);
Log.e(TAG, "streamNum=" + streamNum);
String formatName = jsonMediaFormat.optString("format_name");
mediaBean.setFormatName(formatName);
Log.e(TAG, "formatName=" + formatName);
String bitRateStr = jsonMediaFormat.optString("bit_rate");
if (!TextUtils.isEmpty(bitRateStr)) {
mediaBean.setBitRate(Integer.valueOf(bitRateStr));
}
Log.e(TAG, "bitRate=" + bitRateStr);
String sizeStr = jsonMediaFormat.optString("size");
if (!TextUtils.isEmpty(sizeStr)) {
mediaBean.setSize(Long.valueOf(sizeStr));
}
Log.e(TAG, "size=" + sizeStr);
String durationStr = jsonMediaFormat.optString("duration");
if (!TextUtils.isEmpty(durationStr)) {
float duration = Float.valueOf(durationStr);
mediaBean.setDuration((long) duration);
}
JSONArray jsonMediaStream = jsonMedia.getJSONArray("streams");
if (jsonMediaStream == null) {
return mediaBean;
}
for (int index = 0; index < jsonMediaStream.length(); index ++) {
JSONObject jsonMediaStreamItem = jsonMediaStream.optJSONObject(index);
if (jsonMediaStreamItem == null) continue;
String codecType = jsonMediaStreamItem.optString("codec_type");
if (codecType == null) continue;
if (codecType.equals(TYPE_VIDEO)) {
VideoBean videoBean = new VideoBean();
mediaBean.setVideoBean(videoBean);
String codecName = jsonMediaStreamItem.optString("codec_tag_string");
videoBean.setVideoCodec(codecName);
Log.e(TAG, "codecName=" + codecName);
int width = jsonMediaStreamItem.optInt("width");
videoBean.setWidth(width);
int height = jsonMediaStreamItem.optInt("height");
videoBean.setHeight(height);
Log.e(TAG, "width=" + width + "--height=" + height);
String aspectRatio = jsonMediaStreamItem.optString("display_aspect_ratio");
videoBean.setDisplayAspectRatio(aspectRatio);
Log.e(TAG, "aspectRatio=" + aspectRatio);
String pixelFormat = jsonMediaStreamItem.optString("pix_fmt");
videoBean.setPixelFormat(pixelFormat);
Log.e(TAG, "pixelFormat=" +pixelFormat);
String profile = jsonMediaStreamItem.optString("profile");
videoBean.setProfile(profile);
int level = jsonMediaStreamItem.optInt("level");
videoBean.setLevel(level);
Log.e(TAG, "profile=" + profile + "--level=" + level);
String frameRateStr = jsonMediaStreamItem.optString("r_frame_rate");
if (!TextUtils.isEmpty(frameRateStr)) {
String[] frameRateArray = frameRateStr.split("/");
double frameRate = Math.ceil(Double.valueOf(frameRateArray[0]) / Double.valueOf(frameRateArray[1]));
Log.e(TAG, "frameRate=" + (int) frameRate);
videoBean.setFrameRate((int) frameRate);
}
} else if (codecType.equals(TYPE_AUDIO)) {
AudioBean audioBean = new AudioBean();
mediaBean.setAudioBean(audioBean);
String codecName = jsonMediaStreamItem.optString("codec_tag_string");
audioBean.setAudioCodec(codecName);
Log.e(TAG, "codecName=" + codecName);
String sampleRateStr = jsonMediaStreamItem.optString("sample_rate");
if (!TextUtils.isEmpty(sampleRateStr)) {
audioBean.setSampleRate(Integer.valueOf(sampleRateStr));
}
Log.e(TAG, "sampleRate=" + sampleRateStr);
int channels = jsonMediaStreamItem.optInt("channels");
audioBean.setChannels(channels);
Log.e(TAG, "channels=" + channels);
String channelLayout = jsonMediaStreamItem.optString("channel_layout");
audioBean.setChannelLayout(channelLayout);
Log.e(TAG, "channelLayout=" + channelLayout);
}
}
} catch (Exception e) {
Log.e(TAG, "parse error=" + e.toString());
}
return mediaBean;
}
public static String stringFormat(MediaBean mediaBean) {
if (mediaBean == null) {
return null;
}
StringBuilder formatBuilder = new StringBuilder();
formatBuilder.append("duration:").append(mediaBean.getDuration()).append("\n");
formatBuilder.append("size:").append(mediaBean.getSize()).append("\n");
formatBuilder.append("bitRate:").append(mediaBean.getBitRate()).append("\n");
formatBuilder.append("formatName:").append(mediaBean.getFormatName()).append("\n");
formatBuilder.append("streamNum:").append(mediaBean.getStreamNum()).append("\n");
if (mediaBean.getVideoBean() != null) {
VideoBean videoBean = mediaBean.getVideoBean();
formatBuilder.append("width:").append(videoBean.getWidth()).append("\n");
formatBuilder.append("height:").append(videoBean.getHeight()).append("\n");
formatBuilder.append("aspectRatio:").append(videoBean.getDisplayAspectRatio()).append("\n");
formatBuilder.append("pixelFormat:").append(videoBean.getPixelFormat()).append("\n");
formatBuilder.append("frameRate:").append(videoBean.getFrameRate()).append("\n");
if (videoBean.getVideoCodec() != null) {
formatBuilder.append("videoCodec:").append(videoBean.getVideoCodec()).append("\n");
}
}
if (mediaBean.getAudioBean() != null) {
AudioBean audioBean = mediaBean.getAudioBean();
formatBuilder.append("sampleRate:").append(audioBean.getSampleRate()).append("\n");
formatBuilder.append("channels:").append(audioBean.getChannels()).append("\n");
formatBuilder.append("channelLayout:").append(audioBean.getChannelLayout()).append("\n");
if (audioBean.getAudioCodec() != null) {
formatBuilder.append("audioCodec:").append(audioBean.getAudioCodec()).append("\n");
}
}
return formatBuilder.toString();
}
}
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