moonlight-stream/moonlight-common-c
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We might as well just keep the bitrate constant rather than doing all the complex logic to decide on a minimum. The dynamic scaling behavior is awful anyway.

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Cameron Gutman 2015-10-27 00:20:23 -07:00
parent 81ecd32e83
commit 349d1baa53
1 changed files with 4 additions and 29 deletions
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33
limelight-common/SdpGenerator.c
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@ -208,37 +208,12 @@ static PSDP_OPTION getAttributesList(char *urlSafeAddr) {
err |= addAttributeString(&optionHead, "x-nv-video[0].timeoutLengthMs", "7000");
err |= addAttributeString(&optionHead, "x-nv-video[0].framesWithInvalidRefThreshold", "0");
// Lock the bitrate since we're not scaling resolution so the picture doesn't get too bad
if (StreamConfig.height >= 1080 && StreamConfig.fps >= 60) {
if (StreamConfig.bitrate < 10000) {
sprintf(payloadStr, "%d", StreamConfig.bitrate);
err |= addAttributeString(&optionHead, "x-nv-vqos[0].bw.minimumBitrate", payloadStr);
}
else {
err |= addAttributeString(&optionHead, "x-nv-vqos[0].bw.minimumBitrate", "10000");
}
}
else if (StreamConfig.height >= 1080 || StreamConfig.fps >= 60) {
if (StreamConfig.bitrate < 7000) {
sprintf(payloadStr, "%d", StreamConfig.bitrate);
err |= addAttributeString(&optionHead, "x-nv-vqos[0].bw.minimumBitrate", payloadStr);
}
else {
err |= addAttributeString(&optionHead, "x-nv-vqos[0].bw.minimumBitrate", "7000");
}
}
else {
if (StreamConfig.bitrate < 3000) {
sprintf(payloadStr, "%d", StreamConfig.bitrate);
err |= addAttributeString(&optionHead, "x-nv-vqos[0].bw.minimumBitrate", payloadStr);
}
else {
err |= addAttributeString(&optionHead, "x-nv-vqos[0].bw.minimumBitrate", "3000");
}
}
// We don't support dynamic bitrate scaling properly (it tends to bounce between min and max and never
// settle on the optimal bitrate if it's somewhere in the middle), so we'll just latch the bitrate
// to the requested value.
sprintf(payloadStr, "%d", StreamConfig.bitrate);
err |= addAttributeString(&optionHead, "x-nv-vqos[0].bw.minimumBitrate", payloadStr);
err |= addAttributeString(&optionHead, "x-nv-vqos[0].bw.maximumBitrate", payloadStr);
// Using FEC turns padding on which makes us have to take the slow path