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win-dshow: Add LGP timestamp fix

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LGP devices are devices that induce anger in any sane developer because
they're prone to bad audio timestamps when using their decoded data
directly.  For that reason, add a hack that smooths the timestamps
within a large threshold to prevent audio skipping.
This commit is contained in:
jp9000 2017-02-22 01:18:24 -08:00
commit 32f60d07a3
3 changed files with 48 additions and 3 deletions
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11
plugins/win-dshow/win-dshow.cpp
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@ -116,6 +116,7 @@ public:
inline ~Decoder() {ffmpeg_decode_free(&decode);}
inline operator ffmpeg_decode*() {return &decode;}
inline ffmpeg_decode *operator->() {return &decode;}
};
class CriticalSection {
@ -507,10 +508,18 @@ void DShowInput::OnEncodedAudioData(enum AVCodecID id,
blog(LOG_WARNING, "Could not initialize audio decoder");
return;
}
if (videoConfig.name.find(L"C875") != std::string::npos ||
videoConfig.name.find(L"C835") != std::string::npos) {
audio_decoder->fix_braindead_lgp_audio_packet_stupidity
= true;
blog(LOG_INFO, "Oh great, an LGP was detected. "
"How wonderful. I'm just ecstatic.");
}
}
bool got_output;
int len = ffmpeg_decode_audio(audio_decoder, data, size,
int len = ffmpeg_decode_audio(audio_decoder, data, size, &ts,
&audio, &got_output);
if (len < 0) {
blog(LOG_WARNING, "Error decoding audio");