1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_MEDIA_TRACK_TRANSCODER_CALLBACK_H 18 #define ANDROID_MEDIA_TRACK_TRANSCODER_CALLBACK_H 19 20 #include <media/NdkMediaError.h> 21 22 namespace android { 23 24 class MediaTrackTranscoder; 25 26 /** Callback interface for MediaTrackTranscoder. */ 27 class MediaTrackTranscoderCallback { 28 public: 29 /** 30 * Called when the MediaTrackTranscoder's actual track format becomes available. 31 * @param transcoder The MediaTrackTranscoder whose track format becomes available. 32 */ 33 virtual void onTrackFormatAvailable(const MediaTrackTranscoder* transcoder); 34 /** 35 * Called when the MediaTrackTranscoder instance have finished transcoding all media samples 36 * successfully. 37 * @param transcoder The MediaTrackTranscoder that finished the transcoding. 38 */ 39 virtual void onTrackFinished(const MediaTrackTranscoder* transcoder); 40 41 /** 42 * Called when the MediaTrackTranscoder instance was explicitly stopped before it was finished. 43 * @param transcoder The MediaTrackTranscoder that was stopped. 44 */ 45 virtual void onTrackStopped(const MediaTrackTranscoder* transcoder); 46 47 /** 48 * Called when the MediaTrackTranscoder instance encountered an error it could not recover from. 49 * @param transcoder The MediaTrackTranscoder that encountered the error. 50 * @param status The non-zero error code describing the encountered error. 51 */ 52 virtual void onTrackError(const MediaTrackTranscoder* transcoder, media_status_t status); 53 54 protected: 55 virtual ~MediaTrackTranscoderCallback() = default; 56 }; 57 58 } // namespace android 59 #endif // ANDROID_MEDIA_TRACK_TRANSCODER_CALLBACK_H 60