1c82c3923d
The PTS received from MediaCodec are expressed relative to an arbitrary clock origin. We consider the PTS of the first frame to be 0, and the PTS of every other frame is relative to this first PTS (note that the PTS is only used for recording, it is ignored for mirroring). For simplicity, this relative PTS was computed on the server-side. To prepare support for multiple stream (video and audio), send the packet with its original PTS, and handle the PTS offset on the client-side (by the recorder). Since we can't know in advance which stream will produce the first packet with the lowest PTS (a packet received later on one stream may have a PTS lower than a packet received earlier on another stream), computing the PTS on the server-side would require unnecessary waiting. |
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