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Unified Diff: webkit/glue/media/audio_decoder.cc

Issue 8570010: Moving media-related files from webkit/glue/ to webkit/media/. (Closed) Base URL: svn://chrome-svn/chrome/trunk/src
Patch Set: minor fixes Created 9 years, 1 month ago
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Index: webkit/glue/media/audio_decoder.cc
diff --git a/webkit/glue/media/audio_decoder.cc b/webkit/glue/media/audio_decoder.cc
deleted file mode 100644
index 56186fe52d4f71101ab8dfac3e4d84590c52e346..0000000000000000000000000000000000000000
--- a/webkit/glue/media/audio_decoder.cc
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright (c) 2011 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 "webkit/glue/media/audio_decoder.h"
-
-#include <vector>
-#include "base/basictypes.h"
-#include "base/string_util.h"
-#include "base/time.h"
-#include "media/base/limits.h"
-#include "media/filters/audio_file_reader.h"
-#include "media/filters/in_memory_url_protocol.h"
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebAudioBus.h"
-
-using media::AudioFileReader;
-using media::InMemoryUrlProtocol;
-using std::vector;
-using WebKit::WebAudioBus;
-
-namespace webkit_glue {
-
-// Decode in-memory audio file data.
-bool DecodeAudioFileData(
- WebKit::WebAudioBus* destination_bus,
- const char* data, size_t data_size, double sample_rate) {
- DCHECK(destination_bus);
- if (!destination_bus)
- return false;
-
- // Uses the FFmpeg library for audio file reading.
- InMemoryUrlProtocol url_protocol(reinterpret_cast<const uint8*>(data),
- data_size, false);
- AudioFileReader reader(&url_protocol);
-
- if (!reader.Open())
- return false;
-
- size_t number_of_channels = reader.channels();
- double file_sample_rate = reader.sample_rate();
- double duration = reader.duration().InSecondsF();
- size_t number_of_frames = static_cast<size_t>(reader.number_of_frames());
-
- // Apply sanity checks to make sure crazy values aren't coming out of
- // FFmpeg.
- if (!number_of_channels ||
- number_of_channels > static_cast<size_t>(media::Limits::kMaxChannels) ||
- file_sample_rate < media::Limits::kMinSampleRate ||
- file_sample_rate > media::Limits::kMaxSampleRate)
- return false;
-
- // TODO(crogers) : do sample-rate conversion with FFmpeg.
- // For now, we're ignoring the requested 'sample_rate' and returning
- // the WebAudioBus at the file's sample-rate.
- // double destination_sample_rate =
- // (sample_rate != 0.0) ? sample_rate : file_sample_rate;
- double destination_sample_rate = file_sample_rate;
-
- DLOG(INFO) << "Decoding file data -"
- << " data: " << data
- << " data size: " << data_size
- << " duration: " << duration
- << " number of frames: " << number_of_frames
- << " sample rate: " << file_sample_rate
- << " number of channels: " << number_of_channels;
-
- // Change to destination sample-rate.
- number_of_frames = static_cast<size_t>(number_of_frames *
- (destination_sample_rate / file_sample_rate));
-
- // Allocate and configure the output audio channel data.
- destination_bus->initialize(number_of_channels,
- number_of_frames,
- destination_sample_rate);
-
- // Wrap the channel pointers which will receive the decoded PCM audio.
- vector<float*> audio_data;
- audio_data.reserve(number_of_channels);
- for (size_t i = 0; i < number_of_channels; ++i) {
- audio_data.push_back(destination_bus->channelData(i));
- }
-
- // Decode the audio file data.
- return reader.Read(audio_data, number_of_frames);
-}
-
-} // namespace webkit_glue
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