/// <summary>
/// <para>Events:</para>
/// <para>@emits transportclose</para></para>
/// <para>@emits score - (score: ProducerScore[])</para>
/// <para>@emits videoorientationchange - (videoOrientation: ProducerVideoOrientation)</para>
/// <para>@emits trace - (trace: ProducerTraceEventData)</para>
/// <para>@emits @close</para>
/// <para>Observer events:</para>
/// <para>@emits close</para>
/// <para>@emits pause</para>
/// <para>@emits resume</para>
/// <para>@emits score - (score: ProducerScore[])</para>
/// <para>@emits videoorientationchange - (videoOrientation: ProducerVideoOrientation)</para>
/// <para>@emits trace - (trace: ProducerTraceEventData)</para>
/// </summary>
/// <param name="loggerFactory"></param>
/// <param name="producerInternalData"></param>
/// <param name="kind"></param>
/// <param name="rtpParameters"></param>
/// <param name="type"></param>
/// <param name="consumableRtpParameters"></param>
/// <param name="channel"></param>
/// <param name="appData"></param>
/// <param name="paused"></param>
public Producer(ILoggerFactory loggerFactory,
ProducerInternalData producerInternalData,
MediaKind kind,
RtpParameters rtpParameters,
ProducerType type,
RtpParameters consumableRtpParameters,
Channel channel,
PayloadChannel payloadChannel,
Dictionary <string, object>?appData,
bool paused
)
{
_logger = loggerFactory.CreateLogger <Producer>();
// Internal
_internal = producerInternalData;
// Data
Kind = kind;
RtpParameters = rtpParameters;
Type = type;
ConsumableRtpParameters = consumableRtpParameters;
_channel = channel;
_payloadChannel = payloadChannel;
AppData = appData;
_paused = paused;
if (_isCheckConsumer)
{
_checkConsumersTimer = new Timer(CheckConsumers, null, TimeSpan.FromSeconds(CheckConsumersTimeSeconds), TimeSpan.FromMilliseconds(-1));
}
HandleWorkerNotifications();
}
/// <summary>
/// Validates RtpParameters. It may modify given data by adding missing
/// fields with default values.
/// It throws if invalid.
/// </summary>
public static void ValidateRtpParameters(RtpParameters parameters)
{
if (parameters == null)
{
throw new ArgumentNullException(nameof(parameters));
}
// mid is optional.
// 在 Node.js 实现中，判断了 mid 的数据类型。在强类型语言中不需要。
// codecs is mandatory.
if (parameters.Codecs == null)
{
throw new ArgumentException(nameof(parameters.Codecs));
}
foreach (var codec in parameters.Codecs)
{
ValidateRtpCodecParameters(codec);
}
// headerExtensions is optional. If unset, fill with an empty array.
if (parameters.HeaderExtensions == null)
{
parameters.HeaderExtensions = new List <RtpHeaderExtensionParameters>();
}
foreach (var ext in parameters.HeaderExtensions)
{
ValidateRtpHeaderExtensionParameters(ext);
}
// encodings is optional. If unset, fill with an empty array.
if (parameters.Encodings == null)
{
parameters.Encodings = new List <RtpEncodingParameters>();
}
foreach (var encoding in parameters.Encodings)
{
ValidateRtpEncodingParameters(encoding);
}
// rtcp is optional. If unset, fill with an empty object.
if (parameters.Rtcp == null)
{
// 对 RtcpParameters 序列化时，CNAME 为 null 会忽略，因为客户端库对其有校验。
parameters.Rtcp = new RtcpParameters();
}
ValidateRtcpParameters(parameters.Rtcp);
}