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VideoRecorder.cs
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VideoRecorder.cs
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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Diagnostics;
using Native = Interop.Recorder;
using NativeHandle = Interop.RecorderHandle;
namespace Tizen.Multimedia
{
/// <summary>
/// Provides the ability to control video recording.
/// </summary>
public partial class VideoRecorder : Recorder
{
private static NativeHandle CreateHandle(Camera camera)
{
if (camera == null)
{
throw new ArgumentNullException(nameof(camera));
}
if (!Features.IsSupported(RecorderFeatures.VideoRecorder))
{
throw new NotSupportedException("Video Recorder is not supported.");
}
Native.CreateVideo(camera.Handle, out var handle).
ThrowIfError("Failed to create video recorder.");
return handle;
}
private static void ThrowIfCodecAndFormatNotValid(RecorderVideoCodec videoCodec,
RecorderAudioCodec audioCodec, RecorderFileFormat fileFormat)
{
videoCodec.ThrowIfFormatNotSupported(fileFormat);
if (audioCodec != RecorderAudioCodec.None)
{
audioCodec.ThrowIfFormatNotSupported(fileFormat);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="VideoRecorder"/> class with the specified
/// camera, video codec, and file format.
/// </summary>
/// <remarks>
/// If the state of <see cref="Camera"/> is <see cref="CameraState.Created"/>,
/// the <see cref="CameraSettings.PreviewPixelFormat"/> will be changed to the recommended format for recording.<br/>
/// <br/>
/// The initial state of the Recorder will be <see cref="RecorderState.Ready"/>
/// if the state of <see cref="Camera"/> is <see cref="CameraState.Preview"/> or <see cref="CameraState.Captured"/>.
/// </remarks>
/// <param name="camera">The camera object.</param>
/// <param name="videoCodec">The codec for video encoding.</param>
/// <param name="fileFormat">The format of result file.</param>
/// <feature>http://tizen.org/feature/media.video_recording</feature>
/// <exception cref="InvalidOperationException">An internal error occurred.</exception>
/// <exception cref="NotSupportedException">
/// A required feature is not supported.<br/>
/// -or-<br/>
/// <paramref name="videoCodec"/> is not supported.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not supported with the specified video codec.
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="videoCodec"/> is not valid.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not valid.<br/>
/// -or-<br/>
/// <paramref name="camera"/> is being used by another object.
/// </exception>
/// <exception cref="ObjectDisposedException"><paramref name="camera"/> has been disposed of.</exception>
/// <exception cref="ArgumentNullException"><paramref name="camera"/> is null.</exception>
/// <seealso cref="GetSupportedVideoCodecs"/>
/// <seealso cref="Recorder.GetSupportedFileFormats"/>
/// <seealso cref="RecorderExtensions.GetSupportedFileFormats(RecorderVideoCodec)"/>
/// <seealso cref="SetFormatAndCodec(RecorderVideoCodec, RecorderFileFormat)"/>
/// <seealso cref="SetFormatAndCodec(RecorderVideoCodec, RecorderAudioCodec, RecorderFileFormat)"/>
/// <since_tizen> 4 </since_tizen>
public VideoRecorder(Camera camera, RecorderVideoCodec videoCodec, RecorderFileFormat fileFormat) :
this(camera, videoCodec, RecorderAudioCodec.None, fileFormat)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="VideoRecorder"/> class with the specified
/// camera, video codec, audio codec, and file format.
/// </summary>
/// <remarks>
/// If the state of <see cref="Camera"/> is <see cref="CameraState.Created"/>,
/// the <see cref="CameraSettings.PreviewPixelFormat"/> will be changed to the recommended format for recording.<br/>
/// <br/>
/// The initial state of the Recorder will be <see cref="RecorderState.Ready"/>
/// if the state of <see cref="Camera"/> is <see cref="CameraState.Preview"/> or <see cref="CameraState.Captured"/>.
/// </remarks>
/// <param name="camera">The camera object.</param>
/// <param name="videoCodec">The codec for video encoding.</param>
/// <param name="audioCodec">The codec for audio encoding.</param>
/// <param name="fileFormat">The format of result file.</param>
/// <feature>http://tizen.org/feature/media.video_recording</feature>
/// <exception cref="InvalidOperationException">An internal error occurred.</exception>
/// <exception cref="NotSupportedException">
/// A required feature is not supported.<br/>
/// -or-<br/>
/// <paramref name="videoCodec"/> is not supported.<br/>
/// -or-<br/>
/// <paramref name="audioCodec"/> is not supported.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not supported with the specified video codec.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not supported with the specified audio codec.
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="videoCodec"/> is not valid.<br/>
/// -or-<br/>
/// <paramref name="audioCodec"/> is not valid.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not valid.
/// </exception>
/// <exception cref="ObjectDisposedException"><paramref name="camera"/> has been disposed of.</exception>
/// <exception cref="ArgumentNullException"><paramref name="camera"/> is null.</exception>
/// <seealso cref="Recorder.GetSupportedAudioCodecs"/>
/// <seealso cref="GetSupportedVideoCodecs"/>
/// <seealso cref="Recorder.GetSupportedFileFormats"/>
/// <seealso cref="RecorderExtensions.GetSupportedFileFormats(RecorderAudioCodec)"/>
/// <seealso cref="RecorderExtensions.GetSupportedFileFormats(RecorderVideoCodec)"/>
/// <seealso cref="SetFormatAndCodec(RecorderVideoCodec, RecorderFileFormat)"/>
/// <seealso cref="SetFormatAndCodec(RecorderVideoCodec, RecorderAudioCodec, RecorderFileFormat)"/>
/// <since_tizen> 4 </since_tizen>
public VideoRecorder(Camera camera, RecorderVideoCodec videoCodec,
RecorderAudioCodec audioCodec, RecorderFileFormat fileFormat) : base(CreateHandle(camera))
{
SetFormatAndCodec(videoCodec, RecorderAudioCodec.None, fileFormat);
}
/// <summary>
/// Sets the video codec and the file format for recording. Audio will not be recorded.
/// </summary>
/// <param name="videoCodec">The codec for video encoding.</param>
/// <param name="fileFormat">The format of result file.</param>
/// <exception cref="NotSupportedException">
/// <paramref name="videoCodec"/> is not supported.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not supported with the specified video codec.
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="videoCodec"/> is not valid.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not valid.
/// </exception>
/// <seealso cref="GetSupportedVideoCodecs"/>
/// <seealso cref="Recorder.GetSupportedFileFormats"/>
/// <seealso cref="RecorderExtensions.GetSupportedFileFormats(RecorderVideoCodec)"/>
/// <seealso cref="SetFormatAndCodec(RecorderVideoCodec, RecorderAudioCodec, RecorderFileFormat)"/>
/// <seealso cref="Recorder.Start(string)"/>
/// <since_tizen> 4 </since_tizen>
public void SetFormatAndCodec(RecorderVideoCodec videoCodec, RecorderFileFormat fileFormat)
{
SetFormatAndCodec(videoCodec, RecorderAudioCodec.None, fileFormat);
}
/// <summary>
/// Sets the video codec, audio codec, and the file format for recording.
/// </summary>
/// <param name="videoCodec">The codec for video encoding.</param>
/// <param name="audioCodec">The codec for audio encoding.</param>
/// <param name="fileFormat">The format of result file.</param>
/// <exception cref="NotSupportedException">
/// <paramref name="videoCodec"/> is not supported.<br/>
/// -or-<br/>
/// <paramref name="audioCodec"/> is not supported.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not supported with the specified video codec.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not supported with the specified audio codec.
/// </exception>
/// <exception cref="ArgumentException">
/// <paramref name="videoCodec"/> is not valid.<br/>
/// -or-<br/>
/// <paramref name="audioCodec"/> is not valid.<br/>
/// -or-<br/>
/// <paramref name="fileFormat"/> is not valid.
/// </exception>
/// <seealso cref="Recorder.GetSupportedAudioCodecs"/>
/// <seealso cref="VideoRecorder.GetSupportedVideoCodecs"/>
/// <seealso cref="Recorder.GetSupportedFileFormats"/>
/// <seealso cref="RecorderExtensions.GetSupportedFileFormats(RecorderAudioCodec)"/>
/// <seealso cref="RecorderExtensions.GetSupportedFileFormats(RecorderVideoCodec)"/>
/// <seealso cref="SetFormatAndCodec(RecorderVideoCodec, RecorderFileFormat)"/>
/// <seealso cref="Recorder.Start(string)"/>
/// <since_tizen> 4 </since_tizen>
public void SetFormatAndCodec(RecorderVideoCodec videoCodec, RecorderAudioCodec audioCodec, RecorderFileFormat fileFormat)
{
ThrowIfCodecAndFormatNotValid(videoCodec, audioCodec, fileFormat);
VideoCodec = videoCodec;
AudioCodec = audioCodec;
FileFormat = fileFormat;
}
#region Properties
private RecorderVideoCodec _videoCodec;
/// <summary>
/// Gets the audio codec for encoding an audio stream.
/// </summary>
/// <since_tizen> 4 </since_tizen>
public RecorderVideoCodec VideoCodec
{
get => _videoCodec;
internal set
{
Debug.Assert(Enum.IsDefined(typeof(RecorderVideoCodec), value));
ValidateVideoCodec(value);
Native.SetVideoEncoder(Handle, value).ThrowIfError("Failed to set video codec.");
_videoCodec = value;
}
}
/// <summary>
/// Gets or sets the video recording motion rate.
/// </summary>
/// <remarks>
/// The attribute is valid only in a video recorder.<br/>
/// If the rate is in range of 0-1, the video is recorded in a slow motion mode.<br/>
/// If the rate is greater than 1, the video is recorded in a fast motion mode.<br/>
/// <br/>
/// To set, the recorder must be in the <see cref="RecorderState.Idle"/> or the <see cref="RecorderState.Ready"/> state.
/// </remarks>
/// <exception cref="ArgumentOutOfRangeException">The <paramref name="value"/> is less than or equal to 0.</exception>
/// <exception cref="InvalidOperationException">The recorder is not in the valid state.</exception>
/// <exception cref="ObjectDisposedException">The recorder already has been disposed of.</exception>
/// <since_tizen> 4 </since_tizen>
public double VideoMotionRate
{
get
{
Native.GetMotionRate(Handle, out var val).ThrowIfError("Failed to get video motion rate.");
return val;
}
set
{
ValidateState(RecorderState.Idle, RecorderState.Ready);
if (value <= 0)
{
throw new ArgumentOutOfRangeException(nameof(value), value,
"Video Motion rate can't be less than zero.");
}
Native.SetMotionRate(Handle, value).
ThrowIfError("Failed to set video motion rate");
}
}
/// <summary>
/// Gets or sets the orientation in the video metadata tag.
/// </summary>
/// <value>A <see cref="Rotation"/> that specifies the type of orientation.</value>
/// <exception cref="ArgumentException"><paramref name="value"/> is not valid.</exception>
/// <exception cref="ObjectDisposedException">The recorder already has been disposed of.</exception>
/// <since_tizen> 4 </since_tizen>
public Rotation VideoOrientationTag
{
get
{
Native.GetOrientationTag(Handle, out var val).ThrowIfError("Failed to get recorder orientation.");
return val;
}
set
{
ValidationUtil.ValidateEnum(typeof(Rotation), value, nameof(value));
Native.SetOrientationTag(Handle, value).
ThrowIfError("Failed to set recorder orientation");
}
}
/// <summary>
/// Gets or sets the resolution of the video recording.
/// </summary>
/// <remarks>
/// To set, the recorder must be in the <see cref="RecorderState.Idle"/> or the <see cref="RecorderState.Ready"/> state.
/// </remarks>
/// <exception cref="ArgumentOutOfRangeException">Width or height of <paramref name="value"/> is less than or equal to zero.</exception>
/// <exception cref="NotSupportedException"><paramref name="value"/> is not supported.</exception>
/// <exception cref="InvalidOperationException">The recorder is not in the valid state.</exception>
/// <exception cref="ObjectDisposedException">The recorder already has been disposed of.</exception>
/// <seealso cref="VideoRecorder.GetSupportedVideoResolutions(CameraDevice)"/>
/// <since_tizen> 4 </since_tizen>
public Size VideoResolution
{
get
{
Native.GetVideoResolution(Handle, out var width, out var height).
ThrowIfError("Failed to get camera video resolution");
return new Size(width, height);
}
set
{
ValidateState(RecorderState.Idle, RecorderState.Ready);
if (value.Width <= 0 || value.Height <= 0)
{
throw new ArgumentOutOfRangeException(nameof(value), value,
"Resolution can't be less than or equal to zero.");
}
var ret = Native.SetVideoResolution(Handle, value.Width, value.Height);
if (ret == RecorderErrorCode.InvalidParameter)
{
throw new NotSupportedException($"Resolution({value.ToString()}) is not supported.");
}
ret.ThrowIfError("Failed to set video resolution.");
}
}
/// <summary>
/// Gets or sets the bitrate of the video encoder in bits per second.
/// </summary>
/// <remarks>
/// To set, the recorder must be in the <see cref="RecorderState.Idle"/> or <see cref="RecorderState.Ready"/> state.
/// </remarks>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="value"/> is less than or equal to zero.</exception>
/// <exception cref="InvalidOperationException">The recorder is not in the valid state.</exception>
/// <exception cref="ObjectDisposedException">The recorder already has been disposed of.</exception>
/// <since_tizen> 4 </since_tizen>
public int VideoBitRate
{
get
{
Native.GetVideoEncoderBitrate(Handle, out var val).ThrowIfError("Failed to get video bitrate.");
return val;
}
set
{
ValidateState(RecorderState.Idle, RecorderState.Ready);
if (value <= 0)
{
throw new ArgumentOutOfRangeException(nameof(value), value,
"Bit rate can't be less than or equal to zero.");
}
Native.SetVideoEncoderBitrate(Handle, value).
ThrowIfError("Failed to set video bitrate");
}
}
#endregion
}
}