/**
* Constructor.
*/
public Encoder()
{
this.enableRecording = false;
this.chopNumber = 0;
this.chopLength = -1;
this.choppingTimer = new System.Timers.Timer();
this.choppingTimer.Elapsed += this.OnRecordTimeElapsed;
this.archiveState = WMENC_ARCHIVE_STATE.WMENC_ARCHIVE_STOPPED;
this.stateChangeWaitHandle = new System.Threading.EventWaitHandle(false, System.Threading.EventResetMode.ManualReset, string.Empty);
this.archiveStateChangeWaitHandle = new System.Threading.EventWaitHandle(false, System.Threading.EventResetMode.ManualReset, string.Empty);
// Audio and video sources
this.audioSource = null;
this.videoSource = null;
// Windows Media Encoder
this.wmEncoder = new WMEncoderClass();
this.sourceGroup = (IWMEncSourceGroup2)this.wmEncoder.SourceGroupCollection.Add("SG_1");
this.wmEncoderProfile = new WMEncProfile2();
// For now, we only listen these events
this.wmEncoder.OnStateChange += this.OnStateChange;
this.wmEncoder.OnError += this.OnError;
this.wmEncoder.OnArchiveStateChange += this.OnArchiveStateChange;
// Set recording props.
this.wmEncoder.EnableAutoArchive = false;
this.wmEncoder.AutoIndex = false;
// Set default profile values
this.wmEncoderProfile.ValidateMode = true;
this.wmEncoderProfile.ProfileName = "Windows Media Encoder Profile";
this.wmEncoderProfile.ContentType = 17; // Audio + Video
this.wmEncoderAudience = this.wmEncoderProfile.AddAudience(100000); // Initial bitrate = 100 kbps, will change automatically
// when user sets video and audio params.
}
/**
* Constructor.
*/
public Encoder()
{
this.enableRecording = false;
this.chopNumber = 0;
this.chopLength = -1;
this.choppingTimer = new System.Timers.Timer();
this.choppingTimer.Elapsed += this.OnRecordTimeElapsed;
this.archiveState = WMENC_ARCHIVE_STATE.WMENC_ARCHIVE_STOPPED;
this.stateChangeWaitHandle = new System.Threading.EventWaitHandle(false, System.Threading.EventResetMode.ManualReset, string.Empty);
this.archiveStateChangeWaitHandle = new System.Threading.EventWaitHandle(false, System.Threading.EventResetMode.ManualReset, string.Empty);
// Audio and video sources
this.audioSource = null;
this.videoSource = null;
// Windows Media Encoder
this.wmEncoder = new WMEncoderClass();
this.sourceGroup = (IWMEncSourceGroup2)this.wmEncoder.SourceGroupCollection.Add("SG_1");
this.wmEncoderProfile = new WMEncProfile2();
// For now, we only listen these events
this.wmEncoder.OnStateChange += this.OnStateChange;
this.wmEncoder.OnError += this.OnError;
this.wmEncoder.OnArchiveStateChange += this.OnArchiveStateChange;
// Set recording props.
this.wmEncoder.EnableAutoArchive = false;
this.wmEncoder.AutoIndex = false;
// Set default profile values
this.wmEncoderProfile.ValidateMode = true;
this.wmEncoderProfile.ProfileName = "Windows Media Encoder Profile";
this.wmEncoderProfile.ContentType = 17; // Audio + Video
this.wmEncoderAudience = this.wmEncoderProfile.AddAudience(100000); // Initial bitrate = 100 kbps, will change automatically
// when user sets video and audio params.
}
public override Hashtable GetProfileInfos()
{
// 先清空
profileInfos.Clear();
// 声明必要变量
IWMEncSourcePluginInfoManager sourceGroupCollection = encoder.SourcePluginInfoManager;
IWMEncProfileCollection profileCollection = encoder.ProfileCollection;
IWMEncProfile2 profile2 = new WMEncProfile2Class();
// 刷新
sourceGroupCollection.Refresh();
// 将所有压缩方式的相关信息 依次存入 profileInfos（Hashtable）。
for (int i = 0; i < profileCollection.Count; i++)
{
// 利用wp2获取压缩方式的相关信息
profile2.LoadFromIWMProfile((IWMEncProfile)profileCollection.Item(i));
// 获取压缩方式的相关描述
StringBuilder profileInfo = new StringBuilder();
profileInfo.AppendLine(profileCollection.Item(i).Description);
for (int j = 0; j < profile2.AudienceCount; j++)
{
IWMEncAudienceObj audienceObj = profile2.get_Audience(j);
// 假如此听众处于被选中状态
if (audienceObj.Selected)
{
object audioCodecName = null;
object videoCodecName = null;
try
{
// 得到音频编码名称
int audioCodecIndex = audienceObj.get_AudioCodec(0);
profile2.EnumAudioCodec(audioCodecIndex, out audioCodecName);
// 得到视频编码名称
int videoCodecIndex = audienceObj.get_VideoCodec(0);
profile2.EnumVideoCodec(videoCodecIndex, out videoCodecName);
}
catch
{
}
// 假如音频编码名称不为NULL
if (audioCodecName != null)
{
profileInfo.AppendLine("音频编码：" + audioCodecName.ToString());
}
// // 假如频编码名称不为NULL
if (videoCodecName != null)
{
profileInfo.AppendLine("视频编码：" + videoCodecName.ToString());
profileInfo.AppendLine("视频高度：" + Convert.ToString(audienceObj.get_VideoHeight(0)) + "\t视频宽度：" + Convert.ToString(audienceObj.get_VideoWidth(0)));
}
}
}
profileInfos.Add(profileCollection.Item(i).Name, profileInfo.ToString());
}
return(profileInfos);
}
