Examples with MediaContainer protect.videotranscoder.media.MediaContainer used on opensource projects

Example 1 with MediaContainer

use of protect.videotranscoder.media.MediaContainer in project video-transcoder by brarcher.

the class MainActivity method populateOptionDefaults.

private void populateOptionDefaults() {
    for (int id : BASIC_SETTINGS_IDS) {
        findViewById(id).setVisibility(View.VISIBLE);
    }
    for (int id : VIDEO_SETTINGS_IDS) {
        findViewById(id).setVisibility(View.VISIBLE);
    }
    for (int id : AUDIO_SETTINGS_IDS) {
        findViewById(id).setVisibility(View.VISIBLE);
    }
    encodeButton.setVisibility(View.VISIBLE);
    startJumpBack.setVisibility(View.VISIBLE);
    startJumpForward.setVisibility(View.VISIBLE);
    endJumpBack.setVisibility(View.VISIBLE);
    endJumpForward.setVisibility(View.VISIBLE);
    final String customString = getString(R.string.custom);
    containerSpinner.setAdapter(new ArrayAdapter<>(this, R.layout.spinner_textview, MediaContainer.values()));
    containerSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

        @Override
        public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
            MediaContainer container = (MediaContainer) parentView.getItemAtPosition(position);
            int visibility = container.supportedVideoCodecs.size() > 0 ? View.VISIBLE : View.GONE;
            for (int resId : VIDEO_SETTINGS_IDS) {
                findViewById(resId).setVisibility(visibility);
            }
            if (resolutionSpinner.getSelectedItem().toString().equals(customString) == false) {
                findViewById(R.id.resolutionCustomContainer).setVisibility(View.GONE);
            }
            visibility = container.supportedAudioCodecs.size() > 0 ? View.VISIBLE : View.GONE;
            for (int resId : AUDIO_SETTINGS_IDS) {
                findViewById(resId).setVisibility(visibility);
            }
            // Hide video bitrate for GIF, as it does not apply
            if (container == MediaContainer.GIF) {
                findViewById(R.id.videoBitrateContainer).setVisibility(View.GONE);
            }
            VideoCodecWrapper currentVideoSelection = (VideoCodecWrapper) videoCodecSpinner.getSelectedItem();
            AudioCodec currentAudioSelection = (AudioCodec) audioCodecSpinner.getSelectedItem();
            videoCodecSpinner.setAdapter(new ArrayAdapter<>(MainActivity.this, R.layout.spinner_textview, VideoCodecWrapper.wrap(MainActivity.this, container.supportedVideoCodecs)));
            audioCodecSpinner.setAdapter(new ArrayAdapter<>(MainActivity.this, R.layout.spinner_textview, container.supportedAudioCodecs));
            // Attempt to set the same settings again, if they exist
            if (currentVideoSelection != null) {
                setSpinnerSelection(videoCodecSpinner, currentVideoSelection.codec);
            }
            if (currentAudioSelection != null) {
                setSpinnerSelection(audioCodecSpinner, currentAudioSelection.toString());
            }
        }

        @Override
        public void onNothingSelected(AdapterView<?> parentView) {
        // Nothing to do
        }
    });
    class SetCustomAdapter implements AdapterView.OnItemSelectedListener {

        private final String customString;

        private final View customField;

        public SetCustomAdapter(String customString, @IdRes int customFieldId) {
            this.customString = customString;
            this.customField = findViewById(customFieldId);
        }

        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            String value = (String) parent.getItemAtPosition(position);
            MediaContainer container = (MediaContainer) containerSpinner.getSelectedItem();
            if (value.equals(customString) && container.supportedVideoCodecs.size() > 0) {
                customField.setVisibility(View.VISIBLE);
            } else {
                customField.setVisibility(View.GONE);
            }
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {
        // Nothing to do
        }
    }
    LinkedList<String> fps = new LinkedList<>(Arrays.asList("15", "24", "23.98", "25", "29.97", "30", "50"));
    if (videoInfo.videoFramerate != null && fps.contains(videoInfo.videoFramerate) == false) {
        fps.add(videoInfo.videoFramerate);
        Collections.sort(fps);
    }
    fpsSpinner.setAdapter(new ArrayAdapter<>(this, R.layout.spinner_textview, fps));
    LinkedList<String> resolution = new LinkedList<>();
    if (videoInfo.videoResolution != null && resolution.contains(videoInfo.videoResolution) == false) {
        resolution.add(videoInfo.videoResolution);
        int width = Integer.parseInt(videoInfo.videoResolution.split("x")[0]);
        int height = Integer.parseInt(videoInfo.videoResolution.split("x")[1]);
        // Add a few derivatives of this resolution as well
        resolution.add((width / 2) + "x" + (height / 2));
        resolution.add((width / 4) + "x" + (height / 4));
        Collections.sort(resolution, new Comparator<String>() {

            @Override
            public int compare(String o1, String o2) {
                int width1 = Integer.parseInt(o1.split("x")[0]);
                int height1 = Integer.parseInt(o1.split("x")[1]);
                int width2 = Integer.parseInt(o2.split("x")[0]);
                int height2 = Integer.parseInt(o2.split("x")[1]);
                if (width1 != width2) {
                    return width1 - width2;
                } else {
                    return height1 - height2;
                }
            }
        });
    }
    resolution.addLast(customString);
    resolutionSpinner.setAdapter(new ArrayAdapter<>(this, R.layout.spinner_textview, resolution));
    resolutionSpinner.setOnItemSelectedListener(new SetCustomAdapter(customString, R.id.resolutionCustomContainer));
    audioCodecSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

        @Override
        public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
            AudioCodec audioCodec = (AudioCodec) parentView.getItemAtPosition(position);
            String currentSelection = (String) audioChannelSpinner.getSelectedItem();
            audioChannelSpinner.setAdapter(new ArrayAdapter<>(MainActivity.this, R.layout.spinner_textview, audioCodec.supportedChannels));
            // Attempt to set the same setting as before, if it exists
            if (currentSelection != null) {
                setSpinnerSelection(audioChannelSpinner, currentSelection);
            }
        }

        @Override
        public void onNothingSelected(AdapterView<?> parentView) {
        // Nothing to do
        }
    });
    List<Integer> audioBitrateK = new ArrayList<>(Arrays.asList(15, 24, 32, 64, 96, 128, 192, 256, 320, 384, 448, 512));
    if (videoInfo.audioBitrateK != null && audioBitrateK.contains(videoInfo.audioBitrateK) == false) {
        audioBitrateK.add(videoInfo.audioBitrateK);
        Collections.sort(audioBitrateK);
    }
    audioBitrateSpinner.setAdapter(new ArrayAdapter<>(this, R.layout.spinner_textview, audioBitrateK));
    List<Integer> sampleRate = new ArrayList<>(Arrays.asList(8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000));
    if (videoInfo.audioSampleRate != null && audioBitrateK.contains(videoInfo.audioSampleRate) == false) {
        sampleRate.add(videoInfo.audioSampleRate);
        Collections.sort(sampleRate);
    }
    audioSampleRateSpinner.setAdapter(new ArrayAdapter<>(this, R.layout.spinner_textview, sampleRate));
    String[] channels = new String[] { "1", "2" };
    audioChannelSpinner.setAdapter(new ArrayAdapter<>(this, R.layout.spinner_textview, channels));
    if (videoInfo.container != null) {
        setSpinnerSelection(containerSpinner, videoInfo.container.toString());
    }
    if (videoInfo.videoCodec != null) {
        setSpinnerSelection(videoCodecSpinner, videoInfo.videoCodec);
    }
    if (videoInfo.videoFramerate != null) {
        setSpinnerSelection(fpsSpinner, videoInfo.videoFramerate);
    }
    if (videoInfo.videoResolution != null) {
        setSpinnerSelection(resolutionSpinner, videoInfo.videoResolution);
    }
    if (videoInfo.videoBitrateK != null) {
        videoBitrateValue.setText(Integer.toString(videoInfo.videoBitrateK));
    }
    if (videoInfo.audioCodec != null) {
        setSpinnerSelection(audioCodecSpinner, videoInfo.audioCodec.toString());
    }
    Integer defaultAudioBitrateK = videoInfo.audioBitrateK;
    if (defaultAudioBitrateK == null) {
        // Set some default if none is detected
        defaultAudioBitrateK = 128;
    }
    setSpinnerSelection(audioBitrateSpinner, defaultAudioBitrateK);
    if (videoInfo.audioSampleRate != null) {
        setSpinnerSelection(audioSampleRateSpinner, videoInfo.audioSampleRate);
    }
    setSpinnerSelection(audioChannelSpinner, Integer.toString(videoInfo.audioChannels));
}

Example 2 with MediaContainer

use of protect.videotranscoder.media.MediaContainer in project video-transcoder by brarcher.

the class MainActivity method startEncode.

private void startEncode() {
    MediaContainer container = (MediaContainer) containerSpinner.getSelectedItem();
    VideoCodecWrapper videoCodecWrapper = (VideoCodecWrapper) videoCodecSpinner.getSelectedItem();
    VideoCodec videoCodec = videoCodecWrapper != null ? videoCodecWrapper.codec : null;
    String fps = (String) fpsSpinner.getSelectedItem();
    String resolution = (String) resolutionSpinner.getSelectedItem();
    AudioCodec audioCodec = (AudioCodec) audioCodecSpinner.getSelectedItem();
    Integer audioBitrateK = (Integer) audioBitrateSpinner.getSelectedItem();
    Integer audioSampleRate = (Integer) audioSampleRateSpinner.getSelectedItem();
    String audioChannel = (String) audioChannelSpinner.getSelectedItem();
    int videoBitrateK = 0;
    if (videoInfo == null) {
        Toast.makeText(this, R.string.selectFileFirst, Toast.LENGTH_LONG).show();
        return;
    }
    final String customString = getString(R.string.custom);
    if (resolution.equals(customString) && container.supportedVideoCodecs.size() > 0) {
        resolution = resolutionCustom.getText().toString();
        String[] split = resolution.split("x");
        if (split.length != 2) {
            Toast.makeText(this, R.string.videoResolutionValueInvalid, Toast.LENGTH_LONG).show();
            return;
        }
        for (String value : split) {
            try {
                // Check if the string can be parsed or not.
                Integer.parseInt(value);
            } catch (NumberFormatException e) {
                Toast.makeText(this, R.string.videoResolutionValueInvalid, Toast.LENGTH_LONG).show();
                return;
            }
        }
    }
    try {
        // Ignore video bitrate for GIF
        if (container != MediaContainer.GIF) {
            String videoBitrateKStr = videoBitrateValue.getText().toString();
            videoBitrateK = Integer.parseInt(videoBitrateKStr);
        }
    } catch (NumberFormatException e) {
        Toast.makeText(this, R.string.videoBitrateValueInvalid, Toast.LENGTH_LONG).show();
        return;
    }
    File outputDir;
    if (container.supportedVideoCodecs.size() > 0) {
        outputDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES);
    } else {
        outputDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MUSIC);
    }
    if (outputDir.exists() == false) {
        boolean result = outputDir.mkdirs();
        if (result == false) {
            Log.w(TAG, "Unable to create destination dir: " + outputDir.getAbsolutePath());
        }
    }
    String fileBaseName = videoInfo.getFileBaseName();
    String extension = "." + container.extension;
    String inputFilePath = videoInfo.file.getAbsolutePath();
    File destination = new File(outputDir, fileBaseName + extension);
    int fileNo = 0;
    while (destination.exists()) {
        fileNo++;
        destination = new File(outputDir, fileBaseName + "_" + fileNo + extension);
    }
    int startTimeSec = rangeSeekBar.getSelectedMinValue().intValue();
    int endTimeSec = rangeSeekBar.getSelectedMaxValue().intValue();
    int durationSec = (int) (videoInfo.durationMs / 1000);
    startEncode(inputFilePath, startTimeSec, endTimeSec, durationSec, container, videoCodec, videoBitrateK, resolution, fps, audioCodec, audioSampleRate, audioChannel, audioBitrateK, destination.getAbsolutePath());
}

Example 3 with MediaContainer

use of protect.videotranscoder.media.MediaContainer in project video-transcoder by brarcher.

the class FFmpegUtil method parseMediaInfo.

static MediaInfo parseMediaInfo(File mediaFile, String mediaDetailsJsonStr) {
    long durationMs = 0;
    Integer totalBitrateK = null;
    MediaContainer container = null;
    VideoCodec videoCodec = null;
    String videoResolution = null;
    Integer videoBitrateK = null;
    String videoFramerate = null;
    AudioCodec audioCodec = null;
    Integer audioSampleRate = null;
    Integer audioBitrateK = null;
    int audioChannels = 2;
    /*
         * Example output:
         {
            "streams": [
                {
                    "index": 0,
                    "codec_name": "h264",
                    "codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
                    "profile": "Main",
                    "codec_type": "video",
                    "codec_time_base": "1/50",
                    "codec_tag_string": "[0][0][0][0]",
                    "codec_tag": "0x0000",
                    "width": 640,
                    "height": 360,
                    "coded_width": 640,
                    "coded_height": 360,
                    "has_b_frames": 0,
                    "sample_aspect_ratio": "1:1",
                    "display_aspect_ratio": "16:9",
                    "pix_fmt": "yuv420p",
                    "level": 30,
                    "chroma_location": "left",
                    "refs": 1,
                    "is_avc": "true",
                    "nal_length_size": "4",
                    "r_frame_rate": "25/1",
                    "avg_frame_rate": "25/1",
                    "time_base": "1/1000",
                    "start_pts": 0,
                    "start_time": "0.000000",
                    "bits_per_raw_sample": "8",
                    "disposition": {
                        "default": 0,
                        "dub": 0,
                        "original": 0,
                        "comment": 0,
                        "lyrics": 0,
                        "karaoke": 0,
                        "forced": 0,
                        "hearing_impaired": 0,
                        "visual_impaired": 0,
                        "clean_effects": 0,
                        "attached_pic": 0
                    }
                },
                {
                    "index": 1,
                    "codec_name": "aac",
                    "codec_long_name": "AAC (Advanced Audio Coding)",
                    "profile": "LC",
                    "codec_type": "audio",
                    "codec_time_base": "1/44100",
                    "codec_tag_string": "[0][0][0][0]",
                    "codec_tag": "0x0000",
                    "sample_fmt": "fltp",
                    "sample_rate": "48000",
                    "channels": 6,
                    "channel_layout": "5.1",
                    "bits_per_sample": 0,
                    "r_frame_rate": "0/0",
                    "avg_frame_rate": "0/0",
                    "time_base": "1/1000",
                    "start_pts": 3,
                    "start_time": "0.003000",
                    "disposition": {
                        "default": 0,
                        "dub": 0,
                        "original": 0,
                        "comment": 0,
                        "lyrics": 0,
                        "karaoke": 0,
                        "forced": 0,
                        "hearing_impaired": 0,
                        "visual_impaired": 0,
                        "clean_effects": 0,
                        "attached_pic": 0
                    }
                }
            ],
            "format": {
                "filename": "/Users/brarcher/Downloads/big_buck_bunny_360p_1mb.flv",
                "nb_streams": 2,
                "nb_programs": 0,
                "format_name": "flv",
                "format_long_name": "FLV (Flash Video)",
                "start_time": "0.000000",
                "duration": "6.893000",
                "size": "1048720",
                "bit_rate": "1217142",
                "probe_score": 100,
                "tags": {
                    "encoder": "Lavf53.24.2"
                }
            }
        }
         */
    ObjectMapper mapper = new ObjectMapper();
    try {
        JsonNode root = mapper.readTree(mediaDetailsJsonStr);
        if (root != null) {
            JsonNode format = root.get("format");
            if (format != null) {
                JsonNode duration = format.get("duration");
                if (duration != null) {
                    durationMs = (int) (duration.asDouble() * 1000);
                }
                JsonNode bitrate = format.get("bit_rate");
                if (bitrate != null) {
                    totalBitrateK = bitrate.asInt() / 1000;
                }
                JsonNode formatName = format.get("format_name");
                if (formatName != null) {
                    String formatNameStr = formatName.asText();
                    for (MediaContainer item : MediaContainer.values()) {
                        if (formatNameStr.contains(item.ffmpegName)) {
                            container = item;
                            break;
                        }
                    }
                }
            }
            JsonNode streams = root.get("streams");
            if (streams != null) {
                for (int index = 0; index < streams.size(); index++) {
                    JsonNode stream = streams.get(index);
                    JsonNode codecType = stream.get("codec_type");
                    if (codecType == null) {
                        continue;
                    }
                    if (codecType.asText().equals("video")) {
                        JsonNode codecName = stream.get("codec_name");
                        if (codecName == null) {
                            continue;
                        }
                        videoCodec = VideoCodec.fromName(codecName.asText());
                        JsonNode width = stream.get("width");
                        JsonNode height = stream.get("height");
                        if (width == null || height == null) {
                            continue;
                        }
                        videoResolution = width + "x" + height;
                        // bit_rate may not always be available, so do not require it.
                        JsonNode bitrate = stream.get("bit_rate");
                        if (bitrate != null) {
                            videoBitrateK = bitrate.asInt() / 1000;
                        }
                        JsonNode frameRate = stream.get("avg_frame_rate");
                        if (frameRate == null) {
                            continue;
                        }
                        try {
                            String frameRateStr = frameRate.asText();
                            String[] frameRateSplit = frameRateStr.split("/");
                            int frameRateNum = Integer.parseInt(frameRateSplit[0]);
                            int frameRateDem = 1;
                            if (frameRateSplit.length > 1) {
                                frameRateDem = Integer.parseInt(frameRateSplit[1]);
                            }
                            double frameRateValue = frameRateNum / (double) frameRateDem;
                            videoFramerate = String.format(Locale.US, "%.2f", frameRateValue);
                            if (videoFramerate.contains(".00")) {
                                videoFramerate = videoFramerate.replace(".00", "");
                            }
                        } catch (NumberFormatException e) {
                            continue;
                        }
                    }
                    if (codecType.asText().equals("audio")) {
                        JsonNode codecName = stream.get("codec_name");
                        if (codecName == null) {
                            continue;
                        }
                        audioCodec = AudioCodec.fromName(codecName.asText());
                        JsonNode sampleRate = stream.get("sample_rate");
                        if (sampleRate == null) {
                            continue;
                        }
                        audioSampleRate = sampleRate.asInt();
                        // bit_rate may not always be available, so do not require it.
                        JsonNode bitrate = stream.get("bit_rate");
                        if (bitrate != null) {
                            audioBitrateK = bitrate.asInt() / 1000;
                        }
                        JsonNode channelLaoyout = stream.get("channel_layout");
                        if (channelLaoyout == null) {
                            continue;
                        }
                        audioChannels = channelLaoyout.asText().equals("mono") ? 1 : 2;
                    }
                }
            }
        }
    } catch (IOException e) {
        Log.w(TAG, "Failed to read media details for file : " + mediaFile.getAbsolutePath() + "\n" + mediaDetailsJsonStr, e);
    }
    if (totalBitrateK != null) {
        if (videoBitrateK == null) {
            if (audioBitrateK != null) {
                // We know the audio bitrate, we can calculate the video bitrate
                videoBitrateK = totalBitrateK - audioBitrateK;
            }
            if (videoBitrateK == null) {
                // We do not know any of the separate bitrates. Lets guess 100 kb/s for the audio,
                // and subtract that from the total to guess the video bitrate.
                // As a guess, subtract 100 kb/s from the bitrate for audio, and
                // assume that the video is the rest. This should be a decent-ish
                // estimate if the video bitrate cannot be found later.
                videoBitrateK = totalBitrateK - 100;
            }
        }
    }
    MediaInfo info = null;
    if (container != null && (videoCodec != null || audioCodec != null)) {
        info = new MediaInfo(mediaFile, durationMs, container, videoCodec, videoResolution, videoBitrateK, videoFramerate, audioCodec, audioSampleRate, audioBitrateK, audioChannels);
    }
    return info;
}

Example 4 with MediaContainer

use of protect.videotranscoder.media.MediaContainer in project video-transcoder by brarcher.

the class MainActivity method handleEncodeIntent.

private void handleEncodeIntent(Intent intent) {
    final String inputFilePath = intent.getStringExtra("inputVideoFilePath");
    final String destinationFilePath = intent.getStringExtra("outputFilePath");
    String mediaContainerStr = intent.getStringExtra("mediaContainer");
    final MediaContainer container = MediaContainer.fromName(mediaContainerStr);
    String videoCodecStr = intent.getStringExtra("videoCodec");
    final VideoCodec videoCodec = VideoCodec.fromName(videoCodecStr);
    int tmpCideoBitrateK = intent.getIntExtra("videoBitrateK", -1);
    final Integer videoBitrateK = tmpCideoBitrateK != -1 ? tmpCideoBitrateK : null;
    final String resolution = intent.getStringExtra("resolution");
    final String fps = intent.getStringExtra("fps");
    String audioCodecStr = intent.getStringExtra("audioCodec");
    final AudioCodec audioCodec = AudioCodec.fromName(audioCodecStr);
    int tmpAudioSampleRate = intent.getIntExtra("audioSampleRate", -1);
    final Integer audioSampleRate = tmpAudioSampleRate != -1 ? tmpAudioSampleRate : null;
    final String audioChannel = intent.getStringExtra("audioChannel");
    int tmpAudioBitrateK = intent.getIntExtra("audioBitrateK", -1);
    final Integer audioBitrateK = tmpAudioBitrateK != -1 ? tmpAudioBitrateK : null;
    boolean skipDialog = intent.getBooleanExtra("skipDialog", false);
    List<Triplet<Object, Integer, String>> nullChecks = new LinkedList<>();
    nullChecks.add(new Triplet<>(inputFilePath, R.string.fieldMissingError, "inputFilePath"));
    nullChecks.add(new Triplet<>(destinationFilePath, R.string.fieldMissingError, "outputFilePath"));
    nullChecks.add(new Triplet<>(container, R.string.fieldMissingOrInvalidError, "mediaContainer"));
    if (container != null && container.supportedVideoCodecs.size() > 0) {
        nullChecks.add(new Triplet<>(videoCodec, R.string.fieldMissingOrInvalidError, "videoCodec"));
        nullChecks.add(new Triplet<>(videoBitrateK, R.string.fieldMissingError, "videoBitrateK missing"));
        nullChecks.add(new Triplet<>(resolution, R.string.fieldMissingError, "resolution"));
        nullChecks.add(new Triplet<>(fps, R.string.fieldMissingError, "fps"));
    }
    if (container != null && container.supportedAudioCodecs.size() > 0) {
        nullChecks.add(new Triplet<>(audioCodec, R.string.fieldMissingOrInvalidError, "audioCodec"));
        nullChecks.add(new Triplet<>(audioSampleRate, R.string.fieldMissingError, "audioSampleRate"));
        nullChecks.add(new Triplet<>(audioChannel, R.string.fieldMissingError, "audioChannel"));
        nullChecks.add(new Triplet<>(audioBitrateK, R.string.fieldMissingError, "audioBitrateK"));
    }
    for (Triplet<Object, Integer, String> check : nullChecks) {
        if (check.getValue0() == null) {
            String submsg = String.format(getString(check.getValue1()), check.getValue2());
            String message = String.format(getString(R.string.cannotEncodeFile), submsg);
            Log.i(TAG, message);
            Toast.makeText(this, message, Toast.LENGTH_LONG).show();
            finish();
            return;
        }
    }
    String message = String.format(getString(R.string.encodeStartConfirmation), inputFilePath, destinationFilePath);
    DialogInterface.OnClickListener positiveButtonListener = new DialogInterface.OnClickListener() {

        public void onClick(final DialogInterface dialog, int which) {
            FFmpegUtil.getMediaDetails(new File(inputFilePath), new ResultCallbackHandler<MediaInfo>() {

                @Override
                public void onResult(MediaInfo result) {
                    if (result != null) {
                        int durationSec = (int) (result.durationMs / 1000);
                        startEncode(inputFilePath, 0, durationSec, durationSec, container, videoCodec, videoBitrateK, resolution, fps, audioCodec, audioSampleRate, audioChannel, audioBitrateK, destinationFilePath);
                    } else {
                        String message = String.format(getString(R.string.transcodeFailed), getString(R.string.couldNotFindFileSubmsg));
                        Toast.makeText(MainActivity.this, message, Toast.LENGTH_LONG).show();
                        finish();
                        dialog.dismiss();
                    }
                }
            });
        }
    };
    AlertDialog dialog = new AlertDialog.Builder(this).setMessage(message).setCancelable(false).setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            finish();
            dialog.dismiss();
        }
    }).setPositiveButton(R.string.encode, positiveButtonListener).create();
    dialog.show();
    if (skipDialog) {
        positiveButtonListener.onClick(dialog, 0);
        dialog.dismiss();
    }
}