From 16c095f5c702b2e80e62d0ea48662813c4ca552b Mon Sep 17 00:00:00 2001 From: xufulong <839789740@qq.com> Date: Fri, 10 Jan 2020 00:17:02 +0800 Subject: [PATCH] parse media format data parse media format data --- .../com/frank/ffmpeg/tool/JsonParseTool.java | 152 ++++++++++++++++++ 1 file changed, 152 insertions(+) create mode 100644 app/src/main/java/com/frank/ffmpeg/tool/JsonParseTool.java diff --git a/app/src/main/java/com/frank/ffmpeg/tool/JsonParseTool.java b/app/src/main/java/com/frank/ffmpeg/tool/JsonParseTool.java new file mode 100644 index 0000000..2dee4d2 --- /dev/null +++ b/app/src/main/java/com/frank/ffmpeg/tool/JsonParseTool.java @@ -0,0 +1,152 @@ +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(); + } + +}