[Libav-user] PTS And DTS get

[Yulius Candra]

Ops Sorry first packet frame form mpeg2 is wrong here the correct one :)

[PACKET]
codec_type=video
stream_index=0
pts=45000
pts_time=0.500000
dts=41246
dts_time=0.458289
duration=3753
duration_time=0.041700
size=14838
pos=30
flags=K
[/PACKET]

--- Pada Ming, 15/4/12, Yulius Candra <caesar_06elektro at yahoo.co.id> menulis:

Dari: Yulius Candra <caesar_06elektro at yahoo.co.id>
Judul: Re: [Libav-user] PTS And DTS get
Kepada: " libavformat libavutil libavdevice and libavfilter.This list is about using libavcodec" <libav-user at ffmpeg.org>
Tanggal: Minggu, 15 April, 2012, 10:02 PM

Well, here the result of first frame form ffprobe 

Mpeg 2
[PACKET]
codec_type=audio
stream_index=1
pts=45000
pts_time=0.500000
dts=45000
dts_time=0.500000
duration=2351
duration_time=0.026122
size=417
pos=2048
flags=K
[/PACKET]

And first frame of mpeg 4
[PACKET]
codec_type=video
stream_index=0
pts=0
pts_time=0.000000
dts=0
dts_time=0.000000
duration=1
duration_time=0.041667
size=3321
pos=44
flags=K
[/PACKET]

Best Regards,
Yulius.

--- Pada Ming, 15/4/12, Nicolas George <nicolas.george at normalesup.org> menulis:

Dari: Nicolas George <nicolas.george at normalesup.org>
Judul: Re: [Libav-user] PTS And DTS get
Kepada: "This list
 is about using libavcodec, libavformat, libavutil, libavdevice and libavfilter." <libav-user at ffmpeg.org>
Tanggal: Minggu, 15 April, 2012, 9:26 PM

Le septidi 27 germinal, an CCXX, Yulius Candra a écrit :
> Hello,, When i try build a player video for mpeg 1,2,4..there something
> that make me wonder, when i try sync a frame with timing then i get pts
> and dts but first frame in mpeg 1,2 i get value pts and pts too large then
> if i multiply with timebase i will get big delay. but that case not happen
> in mpeg 4 . is there any explanation? or any calculaction for timing in
> mpeg 1,2?

Can you tell where the file comes from exactly? Also can you show the output
of ffmpeg, the command-line tool, when it tries to read that file? You may
also want to try ffprobe -show_packets.

Regards,

-- 
  Nicolas George

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