1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141


content / browser / media / session / pepper_player_delegate.cc [blame]

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/media/session/pepper_player_delegate.h"

#include "base/command_line.h"
#include "content/browser/media/session/pepper_playback_observer.h"
#include "content/browser/renderer_host/render_frame_host_impl.h"
#include "content/browser/renderer_host/render_frame_host_impl_ppapi_support.h"
#include "media/base/media_switches.h"
#include "services/media_session/public/cpp/media_position.h"

namespace content {

namespace {

const double kDuckVolume = 0.2f;

}  // anonymous namespace

const int PepperPlayerDelegate::kPlayerId = 0;

PepperPlayerDelegate::PepperPlayerDelegate(
    RenderFrameHost* render_frame_host,
    int32_t pp_instance,
    media::MediaContentType media_content_type)
    : render_frame_host_(render_frame_host),
      pp_instance_(pp_instance),
      media_content_type_(media_content_type) {}

PepperPlayerDelegate::~PepperPlayerDelegate() = default;

void PepperPlayerDelegate::OnSuspend(int player_id) {
  if (!base::FeatureList::IsEnabled(media::kAudioFocusDuckFlash))
    return;

  // Pepper player cannot be really suspended. Duck the volume instead.
  DCHECK_EQ(player_id, kPlayerId);
  SetVolume(player_id, kDuckVolume);
}

void PepperPlayerDelegate::OnResume(int player_id) {
  if (!base::FeatureList::IsEnabled(media::kAudioFocusDuckFlash))
    return;

  DCHECK_EQ(player_id, kPlayerId);
  SetVolume(player_id, 1.0f);
}

void PepperPlayerDelegate::OnSeekForward(int player_id,
                                         base::TimeDelta seek_time) {
  // Cannot seek pepper player. Do nothing.
}

void PepperPlayerDelegate::OnSeekBackward(int player_id,
                                          base::TimeDelta seek_time) {
  // Cannot seek pepper player. Do nothing.
}

void PepperPlayerDelegate::OnSeekTo(int player_id, base::TimeDelta seek_time) {
  // Cannot seek pepper player. Do nothing.
}

void PepperPlayerDelegate::OnSetVolumeMultiplier(int player_id,
                                                 double volume_multiplier) {
  if (!base::FeatureList::IsEnabled(media::kAudioFocusDuckFlash))
    return;

  DCHECK_EQ(player_id, kPlayerId);
  SetVolume(player_id, volume_multiplier);
}

void PepperPlayerDelegate::OnEnterPictureInPicture(int player_id) {
  // Pepper player cannot enter picture-in-picture. Do nothing.
}

void PepperPlayerDelegate::OnSetAudioSinkId(int player_id,
                                            const std::string& raw_device_id) {
  // Pepper player cannot change audio sinks. Do nothing.
  NOTREACHED_IN_MIGRATION();
}

void PepperPlayerDelegate::OnSetMute(int player_id, bool mute) {}

std::optional<media_session::MediaPosition> PepperPlayerDelegate::GetPosition(
    int player_id) const {
  // Pepper does not support position data.
  DCHECK_EQ(player_id, kPlayerId);
  return std::nullopt;
}

bool PepperPlayerDelegate::IsPictureInPictureAvailable(int player_id) const {
  DCHECK_EQ(player_id, kPlayerId);
  return false;
}

bool PepperPlayerDelegate::HasSufficientlyVisibleVideo(int player_id) const {
  DCHECK_EQ(player_id, kPlayerId);
  return false;
}

RenderFrameHost* PepperPlayerDelegate::render_frame_host() const {
  return render_frame_host_;
}

void PepperPlayerDelegate::SetVolume(int player_id, double volume) {
  static_cast<RenderFrameHostImpl*>(render_frame_host_)
      ->GetPpapiSupport()
      .SetVolume(pp_instance_, volume);
}

bool PepperPlayerDelegate::HasAudio(int player_id) const {
  // We don't actually know whether a pepper player has both audio/video.
  return true;
}

bool PepperPlayerDelegate::HasVideo(int player_id) const {
  // We don't actually know whether a pepper player has both audio/video.
  return true;
}

bool PepperPlayerDelegate::IsPaused(int player_id) const {
  return false;
}

std::string PepperPlayerDelegate::GetAudioOutputSinkId(int player_id) const {
  // This operation is not supported for pepper players.
  return "";
}

bool PepperPlayerDelegate::SupportsAudioOutputDeviceSwitching(
    int player_id) const {
  return false;
}

media::MediaContentType PepperPlayerDelegate::GetMediaContentType() const {
  return media_content_type_;
}

}  // namespace content