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| 自己不能待在这里 | ||
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| 2 | ||
| 00:00:01,460 --> 00:00:02,540 | ||
| 得找个远离闹市 | ||
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| 3 | ||
| 00:00:02,720 --> 00:00:03,920 | ||
| 但交通方便的地区 | ||
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app/src/main/java/com/coder/ffmpegtest/ui/KFFmpegFontActivity.kt
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| package com.coder.ffmpegtest.ui | ||
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||
| import android.content.Context | ||
| import android.content.Intent | ||
| import android.os.Bundle | ||
| import android.util.Log | ||
| import androidx.appcompat.app.AppCompatActivity | ||
| import androidx.recyclerview.widget.GridLayoutManager | ||
| import com.coder.ffmpeg.call.CommonCallBack | ||
| import com.coder.ffmpeg.jni.FFmpegCommand | ||
| import com.coder.ffmpeg.jni.FFmpegConfig | ||
| import com.coder.ffmpeg.utils.CommandParams | ||
| import com.coder.ffmpegtest.R | ||
| import com.coder.ffmpegtest.databinding.ActivityFfmpegFontBinding | ||
| import com.coder.ffmpegtest.model.CommandBean | ||
| import com.coder.ffmpegtest.ui.adapter.FFmpegCommandAdapter | ||
| import com.coder.ffmpegtest.ui.dialog.PromptDialog | ||
| import com.coder.ffmpegtest.utils.FileIOUtils | ||
| import com.coder.ffmpegtest.utils.FileUtils | ||
| import com.coder.ffmpegtest.utils.ToastUtils | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.MainScope | ||
| import kotlinx.coroutines.launch | ||
| import java.io.File | ||
| import java.util.ArrayList | ||
| import java.util.concurrent.ThreadLocalRandom | ||
|
|
||
| /** | ||
| * 文字、字幕 | ||
| */ | ||
| class KFFmpegFontActivity : AppCompatActivity() { | ||
| private lateinit var binding: ActivityFfmpegFontBinding | ||
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| private lateinit var videoPath: String | ||
| private lateinit var srtPath: String | ||
| private lateinit var adapter: FFmpegCommandAdapter | ||
| private lateinit var fontDir: File | ||
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| private val fonts = arrayListOf( // 设置字体 | ||
| "PingFang ExtraLight.ttf", | ||
| "PingFang Light.ttf", | ||
| "PingFang Regular.ttf", | ||
| "PingFang Medium.ttf", | ||
| "PingFang Bold.ttf", | ||
| "PingFang Heavy.ttf" | ||
| ) | ||
|
|
||
| // 存储在本地字体 | ||
| private val localFonts = mutableListOf<File>() | ||
|
|
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| private var mErrorDialog: PromptDialog? = null | ||
|
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| override fun onCreate(savedInstanceState: Bundle?) { | ||
| super.onCreate(savedInstanceState) | ||
| // 通过binding绑定视图 | ||
| binding = ActivityFfmpegFontBinding.inflate(layoutInflater) | ||
| setContentView(binding.root) | ||
| init() // 初始化 | ||
| } | ||
|
|
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| private fun init() { | ||
| initUI() | ||
| initData() | ||
| initClick() | ||
| } | ||
|
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| /** | ||
| * 初始化UI | ||
| */ | ||
| private fun initUI() { | ||
| if (mErrorDialog == null) { | ||
| mErrorDialog = PromptDialog.newInstance("进度", "完成", "", "停止") | ||
| mErrorDialog?.setHasNegativeButton(false) | ||
| mErrorDialog?.setOnPromptListener(object : PromptDialog.OnPromptListener { | ||
| override fun onPrompt(isPositive: Boolean) { | ||
| if (isPositive) FFmpegCommand.cancel() | ||
| } | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| private fun initData() { | ||
| if (FileUtils.copy2Memory(this, "mm.mp4")) { | ||
| videoPath = File(externalCacheDir, "mm.mp4").absolutePath | ||
| } | ||
| initList() | ||
| initFonts() | ||
| initSrt() | ||
| } | ||
|
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| private fun initList() { | ||
| val commands = this.resources.getStringArray(R.array.fonts) | ||
| val beans: MutableList<CommandBean> = ArrayList() | ||
| for (i in commands.indices) { | ||
| beans.add(CommandBean(commands[i], i)) | ||
| } | ||
| binding.list.layoutManager = GridLayoutManager(this, 2) | ||
| adapter = FFmpegCommandAdapter(beans) | ||
| binding.list.adapter = adapter | ||
| } | ||
|
|
||
| /** | ||
| * 初始化字体 | ||
| */ | ||
| private fun initFonts() { | ||
| fontDir = File(externalCacheDir, "fonts") | ||
| if (!fontDir.exists()) { | ||
| fontDir.mkdirs() | ||
| } | ||
| // 将字体循环写入本地 | ||
| for (font in fonts) { | ||
| val file = File(fontDir, font) | ||
| FileIOUtils.writeFileFromIS(file, assets.open("fonts/$font")) | ||
| localFonts.add(file) | ||
| } | ||
| } | ||
|
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| /** | ||
| * 初始化字幕文件 | ||
| */ | ||
| private fun initSrt() { | ||
| val srtDir = File(externalCacheDir, "srt") | ||
| if (!srtDir.exists()) { | ||
| srtDir.mkdirs() | ||
| } | ||
| val file = File(srtDir, "mm.srt") | ||
| FileIOUtils.writeFileFromIS(file, assets.open("srt/mm.srt")) | ||
| srtPath = file.absolutePath | ||
| } | ||
|
|
||
| private fun initClick() { | ||
| adapter.setItemClickListener(object : FFmpegCommandAdapter.ItemClickListener { | ||
| override fun itemClick(id: Int) { | ||
| when (id) { | ||
| 0 -> { // 绘制文本 | ||
| drawText() | ||
| } | ||
|
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| 1 -> { // 添加字幕 | ||
| subtitles() | ||
| } | ||
| } | ||
| } | ||
| }) | ||
| } | ||
|
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| /** | ||
| * 绘制文本 | ||
| */ | ||
| private fun drawText() { | ||
| // 随机一个字体路径 | ||
| val index = ThreadLocalRandom.current().nextInt(localFonts.size) | ||
| val outputPath = File(externalCacheDir, "target-drawtext.mp4").absolutePath | ||
| val commands = CommandParams() | ||
| .append("-c:v") | ||
| .append("h264_mediacodec") | ||
| .append("-i") | ||
| .append(videoPath) | ||
| .append("-b") // 硬编码一般需要设置视频的比特率（bitrate） | ||
| .append("1500k") | ||
| .append("-vf") | ||
| .append("drawtext=fontfile=${localFonts[index]}:text=FFmpegCommand:x=(w-text_w)/2:y=(h-text_h)/2:fontsize=100:fontcolor=white") | ||
| .append("-c:v") | ||
| .append("h264_mediacodec") | ||
| .append(outputPath) | ||
| .get() | ||
|
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| MainScope().launch(Dispatchers.IO) { | ||
| FFmpegCommand.runCmd(commands, callback("绘制文本完成", outputPath)) | ||
| } | ||
| } | ||
|
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| /** | ||
| * 绘制文本 | ||
| */ | ||
| private fun subtitles() { | ||
| val mapping = HashMap<String, String>() | ||
| mapping["PingFang-SC"] = "PingFang-SC" | ||
| FFmpegConfig.setFontDir(this, fontDir.absolutePath, mapping) | ||
|
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| val outputPath = File(externalCacheDir, "target-subtitles.mp4").absolutePath | ||
| val commands = CommandParams() | ||
| .append("-c:v") | ||
| .append("h264_mediacodec") | ||
| .append("-i") | ||
| .append(videoPath) | ||
| .append("-b") // 硬编码一般需要设置视频的比特率（bitrate） | ||
| .append("1500k") | ||
| .append("-vf") | ||
| .append("subtitles=${srtPath}:force_style='fontname=苹方 常规,fontsize=40,PrimaryColour=&H000000,OutlineColour=&HF0F0F0,Italic=0,BorderStyle=1,Alignment=2'") | ||
| .append("-c:v") | ||
| .append("h264_mediacodec") | ||
| .append(outputPath) | ||
| .get() | ||
|
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| MainScope().launch(Dispatchers.IO) { | ||
| FFmpegCommand.runCmd(commands, callback("绘制文本完成", outputPath)) | ||
| } | ||
| } | ||
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|
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| private fun callback(msg: String, targetPath: String?): CommonCallBack? { | ||
| return object : CommonCallBack() { | ||
| override fun onStart() { | ||
| Log.d("FFmpegCmd", "onStart") | ||
| runOnUiThread { | ||
| mErrorDialog?.show(supportFragmentManager, "Dialog") | ||
| } | ||
| } | ||
|
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| override fun onComplete() { | ||
| Log.d("FFmpegCmd", "onComplete") | ||
| runOnUiThread { | ||
| ToastUtils.show(msg) | ||
| mErrorDialog?.setContent(0) | ||
| mErrorDialog?.dismissAllowingStateLoss() | ||
| binding.contentText.text = targetPath | ||
| } | ||
|
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| } | ||
|
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| override fun onCancel() { | ||
| runOnUiThread { | ||
| ToastUtils.show("用户取消") | ||
| mErrorDialog?.setContent(0) | ||
| } | ||
| Log.d("FFmpegCmd", "Cancel") | ||
| } | ||
|
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| override fun onProgress(progress: Int, pts: Long) { | ||
| Log.d("FFmpegCmd", progress.toString()) | ||
| runOnUiThread { mErrorDialog?.setContent(progress) } | ||
| } | ||
|
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| override fun onError(errorCode: Int, errorMsg: String?) { | ||
| Log.d("FFmpegCmd", errorMsg ?: "") | ||
| runOnUiThread { | ||
| ToastUtils.show(errorMsg) | ||
| mErrorDialog?.setContent(0) | ||
| mErrorDialog?.dismissAllowingStateLoss() | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| companion object { | ||
| fun start(context: Context) { | ||
| val intent = Intent(context, KFFmpegFontActivity::class.java) | ||
| context.startActivity(intent) | ||
| } | ||
| } | ||
| } |
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