media/base/android/video_decoder_job.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef MEDIA_BASE_ANDROID_VIDEO_DECODER_JOB_H_
   6 #define MEDIA_BASE_ANDROID_VIDEO_DECODER_JOB_H_
   7
   8 #include <jni.h>
   9
  10 #include "media/base/android/media_decoder_job.h"
  11
  12 namespace media {
  13
  14 class VideoCodecBridge;
  15
  16 // Class for managing video decoding jobs.
  17 class VideoDecoderJob : public MediaDecoderJob {
  18  public:
  19   virtual ~VideoDecoderJob();
  20
  21   // Create a new VideoDecoderJob instance.
  22   // |video_codec| - The video format the object needs to decode.
  23   // |is_secure| - Whether secure decoding is required.
  24   // |size| -  The natural size of the output frames.
  25   // |surface| - The surface to render the frames to.
  26   // |media_crypto| - Handle to a Java object responsible for decrypting the
  27   // video data.
  28   // |request_data_cb| - Callback used to request more data for the decoder.
  29   // |request_resources_cb| - Callback used to request resources.
  30   // |release_resources_cb| - Callback used to release resources.
  31   static VideoDecoderJob* Create(const VideoCodec video_codec,
  32                                  bool is_secure,
  33                                  const gfx::Size& size,
  34                                  jobject surface,
  35                                  jobject media_crypto,
  36                                  const base::Closure& request_data_cb,
  37                                  const base::Closure& request_resources_cb,
  38                                  const base::Closure& release_resources_cb);
  39
  40  private:
  41   VideoDecoderJob(scoped_ptr<VideoCodecBridge> video_codec_bridge,
  42                   const base::Closure& request_data_cb,
  43                   const base::Closure& request_resources_cb,
  44                   const base::Closure& release_resources_cb);
  45
  46   // MediaDecoderJob implementation.
  47   virtual void ReleaseOutputBuffer(
  48       int output_buffer_index,
  49       size_t size,
  50       bool render_output,
  51       base::TimeDelta current_presentation_timestamp,
  52       const ReleaseOutputCompletionCallback& callback) OVERRIDE;
  53
  54   virtual bool ComputeTimeToRender() const OVERRIDE;
  55
  56   scoped_ptr<VideoCodecBridge> video_codec_bridge_;
  57
  58   base::Closure release_resources_cb_;
  59 };
  60
  61 }  // namespace media
  62
  63 #endif  // MEDIA_BASE_ANDROID_VIDEO_DECODER_JOB_H_