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29th December 2007, 04:57 | #1 | Link |
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Join Date: Dec 2007
Posts: 7
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Is it possible to know the audio delay in m2ts file?
I use xport to demux the m2ts file of movie resident evil3 to audio files,then i find that there is delay in audio file I got,but I can't know the exactly the time of delay,can anybody help me?
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29th December 2007, 06:20 | #2 | Link | |
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Join Date: Jan 2003
Location: Silicon Valley
Posts: 455
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Quote:
Code:
C:\xfer>xport -h 00012.m2ts 1 1 2 xport Transport Stream Demuxer 1.00 program = 1, video channel = 1, audio channel = 2 Program Number = 0 (0x0000), Program Map PID = 31 (0x001f) Program Number = 1 (0x0001), Program Map PID = 256 (0x0100) program descriptor = 0x05, 0x04, 0x48, 0x44, 0x4d, 0x56 program descriptor = 0x88, 0x04, 0x0f, 0xff, 0xff, 0xfc Video PID = 4113 <0x1011>, type = 0x1b ES descriptor for stream type 0x1b = 0x05, 0x08, 0x48, 0x44, 0x4d, 0x56, 0xff, 0x1b, 0x61, 0x3f ES descriptor for stream type 0x80 = 0x05, 0x08, 0x48, 0x44, 0x4d, 0x56, 0xff, 0x80, 0x61, 0xff Audio PID = 4353 <0x1101>, type = 0x81 ES descriptor for stream type 0x81 = 0x05, 0x04, 0x41, 0x43, 0x2d, 0x33 ES descriptor for stream type 0x81 = 0x81, 0x04, 0x06, 0x48, 0x0e, 0x00 ES descriptor for stream type 0x81 = 0x05, 0x04, 0x41, 0x43, 0x2d, 0x33 ES descriptor for stream type 0x81 = 0x81, 0x04, 0x06, 0x48, 0x0e, 0x00 ES descriptor for stream type 0x81 = 0x05, 0x04, 0x41, 0x43, 0x2d, 0x33 ES descriptor for stream type 0x81 = 0x81, 0x04, 0x06, 0x48, 0x0e, 0x00 ES descriptor for stream type 0x81 = 0x05, 0x04, 0x41, 0x43, 0x2d, 0x33 ES descriptor for stream type 0x81 = 0x81, 0x04, 0x06, 0x29, 0x04, 0x00 0 frames before first I-frame High Profile Level = 4.1 First Video PTS = 0x000ffff0 Audio Bitrate = 640000, Audio Sampling Rate = 48000 Audio Mode = 3/2, bsid = 6, bsmod = 0 First Audio PTS = 0x000ffff0, 0 ts rate = unspecified packets for pid 0 <0x0000> = 19, first = 1, last = 50110 packets for pid 31 <0x001f> = 2, first = 3, last = 28725 packets for pid 256 <0x0100> = 19, first = 2, last = 50111 packets for pid 4097 <0x1001> = 20, first = 4, last = 50512 packets for pid 4113 <0x1011> = 37860, first = 5, last = 52084 packets for pid 4352 <0x1100> = 11009, first = 1462, last = 52005 packets for pid 4353 <0x1101> = 903, first = 1624, last = 52057 packets for pid 4354 <0x1102> = 903, first = 1641, last = 52059 packets for pid 4355 <0x1103> = 903, first = 1643, last = 52061 packets for pid 4356 <0x1104> = 383, first = 1645, last = 51823 packets for pid 4608 <0x1200> = 63, first = 48593, last = 48655 coded pictures = 63, video fields = 0 C:\xfer> First Audio PTS = 0x000ffff0, 0 In this case, the delay is zero. If the audio is LPCM or other advanced audio codecs, xport doesn't print the delay. However, if you are demuxing from the beginning of the movie (or the beginning of any .m2ts segment) the delay for all audio streams is zero Ron
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