Cross Reference: /external/chromium_org/media/base/audio_buffer

Lines Matching refs:frames
16                                 int frames,
21     const float v = start_offset + start + ch * bus->frames() * increment;
22     for (int i = offset; i < offset + frames; ++i) {
29 static void VerifyBus(AudioBus* bus, int frames, float start, float increment) {
30   VerifyBusWithOffset(bus, 0, frames, start, 0, increment);
36   const int frames = kSampleRate / 10;
45                                                              frames,
47   EXPECT_EQ(frames, buffer->frame_count());
51   scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames);
53   // Verify all frames before trimming.
54   buffer->ReadFrames(frames, 0, 0, bus.get());
55   VerifyBus(bus.get(), frames, 0, 1);
57   // Trim 10ms of frames from the middle of the buffer.
58   int trim_start = frames / 2;
62   EXPECT_EQ(frames - trim_length, buffer->frame_count());
75   // Trim 10ms of frames from the start, which just adjusts the buffer's
79   EXPECT_EQ(frames - 2 * trim_length, buffer->frame_count());
92   // Trim 10ms of frames from the end, which just adjusts the buffer's frame
95   EXPECT_EQ(frames - 3 * trim_length, buffer->frame_count());
110   EXPECT_EQ(frames - 4 * trim_length, buffer->frame_count());
125   EXPECT_EQ(frames - 5 * trim_length, buffer->frame_count());
141   EXPECT_EQ(frames - 6 * trim_length, buffer->frame_count());
218   const int frames = 10;
226                                                              frames,
228   scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames);
229   buffer->ReadFrames(frames, 0, 0, bus.get());
230   VerifyBus(bus.get(), frames, 0, 1.0f / 127.0f);
234   for (int i = 0; i < frames; ++i)
236   VerifyBus(bus.get(), frames, 0, 1.0f / 127.0f);
242   const int frames = 10;
250                                                              frames,
252   scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames);
253   buffer->ReadFrames(frames, 0, 0, bus.get());
254   VerifyBus(bus.get(), frames, 1.0f / kint16max, 1.0f / kint16max);
258   for (int i = 0; i < frames; ++i)
260   VerifyBus(bus.get(), frames, 1.0f / kint16max, 1.0f / kint16max);
266   const int frames = 20;
274                                                              frames,
276   scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames);
277   buffer->ReadFrames(frames, 0, 0, bus.get());
278   VerifyBus(bus.get(), frames, 1.0f / kint32max, 1.0f / kint32max);
280   // Read second 10 frames.
289   const int frames = 20;
297                                                              frames,
299   scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames);
303   // Read second 10 frames.
312   const int frames = 20;
321                              frames,
323   scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames);
327   // Read all the frames backwards, one by one. ch[0] should be 20, 19, ...
329   for (int i = frames - 1; i >= 0; --i)
331   VerifyBus(bus.get(), frames, 1.0f / kint16max, 1.0f / kint16max);
333   // Read 0 frames with different offsets. Existing data in AudioBus should be
336   VerifyBus(bus.get(), frames, 1.0f / kint16max, 1.0f / kint16max);
338   VerifyBus(bus.get(), frames, 1.0f / kint16max, 1.0f / kint16max);
340   VerifyBus(bus.get(), frames, 1.0f / kint16max, 1.0f / kint16max);
346   const int frames = 100;
355                              frames,
358   // Read all 100 frames from the buffer. F32 is planar, so ch[0] should be 1,
362   buffer->ReadFrames(frames, 0, 0, bus.get());
363   VerifyBus(bus.get(), frames, 1, 1);
365   // Now read 20 frames from the middle of the buffer.
374   const int frames = kSampleRate / 100;
377       channel_layout, channels, kSampleRate, frames, start_time);
378   EXPECT_EQ(frames, buffer->frame_count());
383   // Read all 100 frames from the buffer. All data should be 0.
384   scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames);
385   buffer->ReadFrames(frames, 0, 0, bus.get());
386   VerifyBus(bus.get(), frames, 0, 0);
392   const int frames = kSampleRate / 10;
402                              frames,
404   EXPECT_EQ(frames, buffer->frame_count());
411   scoped_ptr<AudioBus> bus = AudioBus::Create(channels, frames);
415   // Trim off 10ms of frames from the start.
418   EXPECT_EQ(frames - ten_ms_of_frames, buffer->frame_count());
423   // Trim off 10ms of frames from the end.
426   EXPECT_EQ(frames - 2 * ten_ms_of_frames, buffer->frame_count());
434   EXPECT_EQ(frames - 6 * ten_ms_of_frames, buffer->frame_count());