彩票走势图

Datastead RTSP/RTMP/HTTP/URL DirectShow源滤波器能从流媒体源中解码音频和视频文件，发现未压缩的音频和视频针，同时在不转码的情况下将数据流保存到文件中。

• 使用RTSP，RTMP，RTP，HTTP，UDP，RTP，Shoutcast或其他兼容的流媒体格式接收流媒体文件。

• 对数据流解码，发现未压缩的视频或音频输出针。

• 在不转码的情况下，使用本地格式直接将视频流同步记录到文件中。（MP4，FLV，MOV，AVI或MKV文件）。

• 包括PCM，MP3和AAC编码的音频流，这取决于记录的文件名（例如使用MP4格式记录的H264/AAC文件）。

• 生成新文件时也生成文件块，并且不丢失帧，也不需要关闭或打开图形。

滤波器内部需要多路复用器（MP4，FLV，MOV，AVI和MKV mux），但是并不使用H264（重复）编码。它将本地H264帧直接保存到记录文件中。如果音频记录功能不允许使用，那么音频流将以PCM，MP3或AAC格式编码，这取决于记录文件的格式。

The Datastead RTSP/RTMP/HTTP/URL DirectShow Source Filter decodes audio and video from streaming sources, exposes the uncompressed audio and video pins, and can at the same time save the streams to a file without transcoding.

• receive streaming sources in RTSP, RTMP, RTP, HTTP, UDP, RTP, Shoutcast or other compatible streaming formats
• decode the streams and exposes the uncompressed video and/or audio output pins,
• record at the same time the video streams in their native format without transcoding, directly to a file (MP4, FLV, MOV, AVI, or MKV file),
• include the audio stream encoded in PCM, MP3 or AAC, depending on the recording file name (e.g. H264/AAC for a MP4 recording),
• generate file chunks by generating new files on the fly without loosing frames and without stopping/restarting the graph.

The filter includes internally the required multiplexers (MP4, FLV, MOV, AVI and MKV mux) but does not (re-)encode in H264, it saves directly the native H264 frames to the recording file. If the audio recording is enabled the audio stream is encoded to PCM, MP3 or AAC, depending on the recording format.