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   // Create a new VideoDecoderJob instance.
  20   // |request_data_cb| - Callback used to request more data for the decoder.
  21   // |request_resources_cb| - Callback used to request resources.
  22   // |on_demuxer_config_changed_cb| - Callback used to inform the caller that
  23   // demuxer config has changed.
  24   VideoDecoderJob(
  25       const base::Closure& request_data_cb,
  26       const base::Closure& request_resources_cb,
  27       const base::Closure& on_demuxer_config_changed_cb);
  28   ~VideoDecoderJob() override;
  29
  30   // Passes a java surface object to the codec. Returns true if the surface
  31   // can be used by the decoder, or false otherwise.
  32   bool SetVideoSurface(gfx::ScopedJavaSurface surface);
  33
  34   // MediaDecoderJob implementation.
  35   bool HasStream() const override;
  36   void ReleaseDecoderResources() override;
  37   void SetDemuxerConfigs(const DemuxerConfigs& configs) override;
  38
  39   int output_width() const { return output_width_; }
  40   int output_height() const { return output_height_; }
  41
  42  private:
  43   // MediaDecoderJob implementation.
  44   void ReleaseOutputBuffer(
  45       int output_buffer_index,
  46       size_t offset,
  47       size_t size,
  48       bool render_output,
  49       base::TimeDelta current_presentation_timestamp,
  50       const ReleaseOutputCompletionCallback& callback) override;
  51   bool ComputeTimeToRender() const override;
  52   bool IsCodecReconfigureNeeded(const DemuxerConfigs& configs) const override;
  53   bool AreDemuxerConfigsChanged(const DemuxerConfigs& configs) const override;
  54   MediaDecoderJobStatus CreateMediaCodecBridgeInternal() override;
  55   bool UpdateOutputFormat() override;
  56
  57   // Returns true if a protected surface is required for video playback.
  58   bool IsProtectedSurfaceRequired();
  59
  60   // Video configs from the demuxer.
  61   VideoCodec video_codec_;
  62   int config_width_;
  63   int config_height_;
  64
  65   // Video output format.
  66   int output_width_;
  67   int output_height_;
  68
  69   // The surface object currently owned by the player.
  70   gfx::ScopedJavaSurface surface_;
  71
  72   // Callbacks to inform the caller about decoder resources change.
  73   base::Closure request_resources_cb_;
  74   base::Closure release_resources_cb_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(VideoDecoderJob);
  77 };
  78
  79 }  // namespace media
  80
  81 #endif  // MEDIA_BASE_ANDROID_VIDEO_DECODER_JOB_H_