Speculative revert by sheriff

media/tools/player_x11/player_x11.cc

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <signal.h>
+
+#include <iostream>  // NOLINT
+
+#include "base/at_exit.h"
+#include "base/bind.h"
+#include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/scoped_vector.h"
+#include "base/threading/platform_thread.h"
+#include "base/threading/thread.h"
+#include "media/audio/audio_manager.h"
+#include "media/audio/null_audio_sink.h"
+#include "media/base/audio_hardware_config.h"
+#include "media/base/bind_to_current_loop.h"
+#include "media/base/decryptor.h"
+#include "media/base/media.h"
+#include "media/base/media_log.h"
+#include "media/base/media_switches.h"
+#include "media/base/pipeline.h"
+#include "media/base/text_track.h"
+#include "media/base/text_track_config.h"
+#include "media/base/video_frame.h"
+#include "media/filters/ffmpeg_audio_decoder.h"
+#include "media/filters/ffmpeg_demuxer.h"
+#include "media/filters/ffmpeg_video_decoder.h"
+#include "media/filters/file_data_source.h"
+#include "media/renderers/audio_renderer_impl.h"
+#include "media/renderers/renderer_impl.h"
+#include "media/renderers/video_renderer_impl.h"
+#include "media/tools/player_x11/data_source_logger.h"
+
+// Include X11 headers here because X11/Xlib.h #define's Status
+// which causes compiler errors with Status enum declarations
+// in media::DemuxerStream & media::AudioDecoder.
+#include <X11/XKBlib.h>
+#include <X11/Xlib.h>
+
+#include "media/tools/player_x11/gl_video_renderer.h"
+#include "media/tools/player_x11/x11_video_renderer.h"
+
+static Display* g_display = NULL;
+static Window g_window = 0;
+static bool g_running = false;
+
+media::AudioManager* g_audio_manager = NULL;
+
+scoped_ptr<media::DataSource> CreateDataSource(const std::string& file_path) {
+  media::FileDataSource* file_data_source = new media::FileDataSource();
+  CHECK(file_data_source->Initialize(base::FilePath(file_path)));
+
+  scoped_ptr<media::DataSource> data_source(file_data_source);
+  return data_source.Pass();
+}
+
+// Initialize X11. Returns true if successful. This method creates the X11
+// window. Further initialization is done in X11VideoRenderer.
+bool InitX11() {
+  g_display = XOpenDisplay(NULL);
+  if (!g_display) {
+    std::cout << "Error - cannot open display" << std::endl;
+    return false;
+  }
+
+  // Get properties of the screen.
+  int screen = DefaultScreen(g_display);
+  int root_window = RootWindow(g_display, screen);
+
+  // Creates the window.
+  g_window = XCreateSimpleWindow(g_display, root_window, 1, 1, 100, 50, 0,
+                                 BlackPixel(g_display, screen),
+                                 BlackPixel(g_display, screen));
+  XStoreName(g_display, g_window, "X11 Media Player");
+
+  XSelectInput(g_display, g_window,
+               ExposureMask | ButtonPressMask | KeyPressMask);
+  XMapWindow(g_display, g_window);
+  return true;
+}
+
+static void DoNothing() {}
+
+static void OnStatus(media::PipelineStatus status) {}
+
+static void OnMetadata(media::PipelineMetadata metadata) {}
+
+static void OnBufferingStateChanged(media::BufferingState buffering_state) {}
+
+static void OnAddTextTrack(const media::TextTrackConfig& config,
+                           const media::AddTextTrackDoneCB& done_cb) {
+}
+
+static void OnEncryptedMediaInitData(media::EmeInitDataType init_data_type,
+                                     const std::vector<uint8>& init_data) {
+  std::cout << "File is encrypted." << std::endl;
+}
+
+static void SaveStatusAndSignal(base::WaitableEvent* event,
+                                media::PipelineStatus* status_out,
+                                media::PipelineStatus status) {
+  *status_out = status;
+  event->Signal();
+}
+
+// TODO(vrk): Re-enabled audio. (crbug.com/112159)
+void InitPipeline(
+    media::Pipeline* pipeline,
+    const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
+    media::Demuxer* demuxer,
+    const media::VideoRendererImpl::PaintCB& paint_cb,
+    bool /* enable_audio */) {
+  ScopedVector<media::VideoDecoder> video_decoders;
+  video_decoders.push_back(new media::FFmpegVideoDecoder(task_runner));
+  scoped_ptr<media::VideoRenderer> video_renderer(new media::VideoRendererImpl(
+      task_runner, video_decoders.Pass(), true, new media::MediaLog()));
+
+  ScopedVector<media::AudioDecoder> audio_decoders;
+  audio_decoders.push_back(new media::FFmpegAudioDecoder(task_runner,
+                                                         media::LogCB()));
+  media::AudioParameters out_params(
+      media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
+      media::CHANNEL_LAYOUT_STEREO,
+      44100,
+      16,
+      512);
+  media::AudioHardwareConfig hardware_config(out_params, out_params);
+
+  scoped_ptr<media::AudioRenderer> audio_renderer(new media::AudioRendererImpl(
+      task_runner, new media::NullAudioSink(task_runner), audio_decoders.Pass(),
+      hardware_config, new media::MediaLog()));
+
+  scoped_ptr<media::Renderer> renderer(new media::RendererImpl(
+      task_runner, audio_renderer.Pass(), video_renderer.Pass()));
+
+  base::WaitableEvent event(true, false);
+  media::PipelineStatus status;
+
+  pipeline->Start(demuxer,
+                  renderer.Pass(),
+                  base::Bind(&DoNothing),
+                  base::Bind(&OnStatus),
+                  base::Bind(&SaveStatusAndSignal, &event, &status),
+                  base::Bind(&OnMetadata),
+                  base::Bind(&OnBufferingStateChanged),
+                  paint_cb,
+                  base::Bind(&DoNothing),
+                  base::Bind(&OnAddTextTrack),
+                  base::Bind(&DoNothing));
+
+  // Wait until the pipeline is fully initialized.
+  event.Wait();
+  CHECK_EQ(status, media::PIPELINE_OK) << "Pipeline initialization failed";
+
+  // And start the playback.
+  pipeline->SetPlaybackRate(1.0f);
+}
+
+void TerminateHandler(int signal) {
+  g_running = false;
+}
+
+void PeriodicalUpdate(
+    media::Pipeline* pipeline,
+    base::MessageLoop* message_loop) {
+  if (!g_running) {
+    // interrupt signal was received during last time period.
+    // Quit message_loop only when pipeline is fully stopped.
+    pipeline->Stop(base::MessageLoop::QuitClosure());
+    return;
+  }
+
+  // Consume all the X events
+  while (XPending(g_display)) {
+    XEvent e;
+    XNextEvent(g_display, &e);
+    switch (e.type) {
+      case ButtonPress:
+        {
+          Window window;
+          int x, y;
+          unsigned int width, height, border_width, depth;
+          XGetGeometry(g_display,
+                       g_window,
+                       &window,
+                       &x,
+                       &y,
+                       &width,
+                       &height,
+                       &border_width,
+                       &depth);
+          base::TimeDelta time = pipeline->GetMediaDuration();
+          pipeline->Seek(time*e.xbutton.x/width, base::Bind(&OnStatus));
+        }
+        break;
+      case KeyPress:
+        {
+          KeySym key = XkbKeycodeToKeysym(g_display, e.xkey.keycode, 0, 0);
+          if (key == XK_Escape) {
+            g_running = false;
+            // Quit message_loop only when pipeline is fully stopped.
+            pipeline->Stop(base::MessageLoop::QuitClosure());
+            return;
+          } else if (key == XK_space) {
+            if (pipeline->GetPlaybackRate() < 0.01f)  // paused
+              pipeline->SetPlaybackRate(1.0f);
+            else
+              pipeline->SetPlaybackRate(0.0f);
+          }
+        }
+        break;
+      default:
+        break;
+    }
+  }
+
+  message_loop->PostDelayedTask(
+      FROM_HERE,
+      base::Bind(&PeriodicalUpdate,
+                 base::Unretained(pipeline),
+                 message_loop),
+      base::TimeDelta::FromMilliseconds(10));
+}
+
+int main(int argc, char** argv) {
+  base::AtExitManager at_exit;
+  media::InitializeMediaLibraryForTesting();
+
+  base::CommandLine::Init(argc, argv);
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
+  std::string filename = command_line->GetSwitchValueASCII("file");
+
+  if (filename.empty()) {
+    std::cout << "Usage: " << argv[0] << " --file=FILE" << std::endl
+              << std::endl
+              << "Optional arguments:" << std::endl
+              << "  [--audio]"
+              << "  [--alsa-device=DEVICE]"
+              << "  [--use-gl]"
+              << "  [--streaming]" << std::endl
+              << " Press [ESC] to stop" << std::endl
+              << " Press [SPACE] to toggle pause/play" << std::endl
+              << " Press mouse left button to seek" << std::endl;
+    return 1;
+  }
+
+  scoped_ptr<media::AudioManager> audio_manager(
+      media::AudioManager::CreateForTesting());
+  g_audio_manager = audio_manager.get();
+
+  logging::LoggingSettings settings;
+  settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
+  logging::InitLogging(settings);
+
+  // Install the signal handler.
+  signal(SIGTERM, &TerminateHandler);
+  signal(SIGINT, &TerminateHandler);
+
+  // Initialize X11.
+  if (!InitX11())
+    return 1;
+
+  // Initialize the pipeline thread and the pipeline.
+  base::MessageLoop message_loop;
+  base::Thread media_thread("MediaThread");
+  media_thread.Start();
+
+  media::VideoRendererImpl::PaintCB paint_cb;
+  if (command_line->HasSwitch("use-gl")) {
+    paint_cb = media::BindToCurrentLoop(base::Bind(
+        &GlVideoRenderer::Paint, new GlVideoRenderer(g_display, g_window)));
+  } else {
+    paint_cb = media::BindToCurrentLoop(base::Bind(
+        &X11VideoRenderer::Paint, new X11VideoRenderer(g_display, g_window)));
+  }
+
+  scoped_ptr<media::DataSource> data_source(new DataSourceLogger(
+      CreateDataSource(filename), command_line->HasSwitch("streaming")));
+  scoped_ptr<media::Demuxer> demuxer(new media::FFmpegDemuxer(
+      media_thread.message_loop_proxy(), data_source.get(),
+      base::Bind(&OnEncryptedMediaInitData), new media::MediaLog()));
+
+  media::Pipeline pipeline(media_thread.message_loop_proxy(),
+                           new media::MediaLog());
+  InitPipeline(&pipeline, media_thread.message_loop_proxy(), demuxer.get(),
+               paint_cb, command_line->HasSwitch("audio"));
+
+  // Main loop of the application.
+  g_running = true;
+
+  message_loop.PostTask(FROM_HERE, base::Bind(
+      &PeriodicalUpdate, base::Unretained(&pipeline), &message_loop));
+  message_loop.Run();
+
+  // Cleanup tasks.
+  media_thread.Stop();
+
+  // Release callback which releases video renderer. Do this before cleaning up
+  // X below since the video renderer has some X cleanup duties as well.
+  paint_cb.Reset();
+
+  XDestroyWindow(g_display, g_window);
+  XCloseDisplay(g_display);
+  g_audio_manager = NULL;
+
+  return 0;
+}