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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
parent 5b8a0a2777
commit 32f60d07a3
3 changed files with 48 additions and 3 deletions
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plugins/win-dshow/ffmpeg-decode.h
+7 -1
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@@ -44,13 +44,19 @@ struct ffmpeg_decode {
uint8_t *packet_buffer;
size_t packet_size;
uint64_t lgp_start_ts;
uint64_t lgp_frames_since_start;
uint64_t lgp_next_expected_ts;
bool lgp_started;
bool fix_braindead_lgp_audio_packet_stupidity;
};
extern int ffmpeg_decode_init(struct ffmpeg_decode *decode, enum AVCodecID id);
extern void ffmpeg_decode_free(struct ffmpeg_decode *decode);
extern int ffmpeg_decode_audio(struct ffmpeg_decode *decode,
uint8_t *data, size_t size,
uint8_t *data, size_t size, long long *ts,
struct obs_source_audio *audio,
bool *got_output);