dce40cf804
use of int16_t/uint16_t. This is the upshot of a recommendation by henrik.lundin and kwiberg on an original small change ( https://webrtc-codereview.appspot.com/42569004/#ps1 ) to stop using int16_t just because values could fit in it, and is similar in nature to a previous "mass change to use size_t more" ( https://webrtc-codereview.appspot.com/23129004/ ) which also needed to be split up for review but to land all at once, since, like adding "const", such changes tend to cause a lot of transitive effects. This was be reviewed and approved in pieces: https://codereview.webrtc.org/1224093003 https://codereview.webrtc.org/1224123002 https://codereview.webrtc.org/1224163002 https://codereview.webrtc.org/1225133003 https://codereview.webrtc.org/1225173002 https://codereview.webrtc.org/1227163003 https://codereview.webrtc.org/1227203003 https://codereview.webrtc.org/1227213002 https://codereview.webrtc.org/1227893002 https://codereview.webrtc.org/1228793004 https://codereview.webrtc.org/1228803003 https://codereview.webrtc.org/1228823002 https://codereview.webrtc.org/1228823003 https://codereview.webrtc.org/1228843002 https://codereview.webrtc.org/1230693002 https://codereview.webrtc.org/1231713002 The change is being landed as TBR to all the folks who reviewed the above. BUG=chromium:81439 TEST=none R=andrew@webrtc.org, pbos@webrtc.org TBR=aluebs, andrew, asapersson, henrika, hlundin, jan.skoglund, kwiberg, minyue, pbos, pthatcher Review URL: https://codereview.webrtc.org/1230503003 . Cr-Commit-Position: refs/heads/master@{#9768}
112 lines
3.8 KiB
C++
112 lines
3.8 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_MODULES_UTILITY_INTERFACE_FILE_PLAYER_H_
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#define WEBRTC_MODULES_UTILITY_INTERFACE_FILE_PLAYER_H_
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#include "webrtc/common_types.h"
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#include "webrtc/engine_configurations.h"
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#include "webrtc/modules/interface/module_common_types.h"
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#include "webrtc/typedefs.h"
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#include "webrtc/video_frame.h"
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namespace webrtc {
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class FileCallback;
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class FilePlayer
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{
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public:
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// The largest decoded frame size in samples (60ms with 32kHz sample rate).
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enum {MAX_AUDIO_BUFFER_IN_SAMPLES = 60*32};
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enum {MAX_AUDIO_BUFFER_IN_BYTES = MAX_AUDIO_BUFFER_IN_SAMPLES*2};
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// Note: will return NULL for unsupported formats.
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static FilePlayer* CreateFilePlayer(const uint32_t instanceID,
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const FileFormats fileFormat);
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static void DestroyFilePlayer(FilePlayer* player);
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// Read 10 ms of audio at |frequencyInHz| to |outBuffer|. |lengthInSamples|
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// will be set to the number of samples read (not the number of samples per
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// channel).
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virtual int Get10msAudioFromFile(
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int16_t* outBuffer,
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size_t& lengthInSamples,
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int frequencyInHz) = 0;
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// Register callback for receiving file playing notifications.
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virtual int32_t RegisterModuleFileCallback(
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FileCallback* callback) = 0;
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// API for playing audio from fileName to channel.
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// Note: codecInst is used for pre-encoded files.
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virtual int32_t StartPlayingFile(
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const char* fileName,
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bool loop,
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uint32_t startPosition,
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float volumeScaling,
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uint32_t notification,
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uint32_t stopPosition = 0,
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const CodecInst* codecInst = NULL) = 0;
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// Note: codecInst is used for pre-encoded files.
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virtual int32_t StartPlayingFile(
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InStream& sourceStream,
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uint32_t startPosition,
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float volumeScaling,
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uint32_t notification,
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uint32_t stopPosition = 0,
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const CodecInst* codecInst = NULL) = 0;
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virtual int32_t StopPlayingFile() = 0;
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virtual bool IsPlayingFile() const = 0;
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virtual int32_t GetPlayoutPosition(uint32_t& durationMs) = 0;
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// Set audioCodec to the currently used audio codec.
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virtual int32_t AudioCodec(CodecInst& audioCodec) const = 0;
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virtual int32_t Frequency() const = 0;
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// Note: scaleFactor is in the range [0.0 - 2.0]
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virtual int32_t SetAudioScaling(float scaleFactor) = 0;
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// Return the time in ms until next video frame should be pulled (by
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// calling GetVideoFromFile(..)).
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// Note: this API reads one video frame from file. This means that it should
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// be called exactly once per GetVideoFromFile(..) API call.
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virtual int32_t TimeUntilNextVideoFrame() { return -1;}
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virtual int32_t StartPlayingVideoFile(
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const char* /*fileName*/,
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bool /*loop*/,
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bool /*videoOnly*/) { return -1;}
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virtual int32_t video_codec_info(VideoCodec& /*videoCodec*/) const
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{return -1;}
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virtual int32_t GetVideoFromFile(VideoFrame& /*videoFrame*/) { return -1; }
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// Same as GetVideoFromFile(). videoFrame will have the resolution specified
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// by the width outWidth and height outHeight in pixels.
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virtual int32_t GetVideoFromFile(VideoFrame& /*videoFrame*/,
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const uint32_t /*outWidth*/,
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const uint32_t /*outHeight*/) {
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return -1;
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}
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protected:
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virtual ~FilePlayer() {}
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_UTILITY_INTERFACE_FILE_PLAYER_H_
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