Hi all,
we try to convert a 1080i mpeg (form a SONY HDR-FX1)
to PAL DV. To do so, we did the following steps:
1. Grab the video with libiec61883 form the camera
2. convert it with ts2ps from Transport Stream to Program Stream
This works so far and we have a wonderfull mpeg:
[EMAIL PROTECTED]:~/transcode> tcprobe -i test.mpg
[tcprobe] MPEG program stream (PS)
[tcprobe] summary for test.mpg, (*) = not default, 0 = not detected
audio track: -a 0 [0] -e 48000,16,2 [48000,16,2] -n 0x50 [0x2000] (*)
PTS=3025.9200, bitrate=384 kbps
detected (2) presentation unit(s) (SCR reset)
[EMAIL PROTECTED]:~/transcode>
Now we start transcode to convert it; as transcode does not recognize
the input codec, we use -x mplayer (cause mplayer displays the video
fine). We use transcode 1.0.2 (hopefully) compiled with mplayer
support (there ist /usr/lib/transcode/import_mplayer.so) and mplayer
SuSE Linux 10.0 (i686)-Packman-4.0.2
both taken from http://packman.links2linux.de/.
According to
http://www.transcoding.org/cgi-bin/transcode?Import_Modules/Import_Mplayer
we first find out the settings of the video:
[EMAIL PROTECTED]:~/transcode> mplayer -vo dummy test.mpg 2>&1 |grep -E
"VIDEO:|AUDIO:"
VIDEO: MPEG2 1440x1080 (aspect 3) 25.000 fps 25000.0 kbps (3125.0
kbyte/s)
AUDIO: 48000 Hz, 2 ch, s16le, 384.0 kbit/25.00% (ratio: 48000->192000)
[EMAIL PROTECTED]:~/transcode>
So we start transcode (audio works fine, so we dont do -x
mplayer,mplayer, only the video shall be rendered by mplayer)
to encode the first 100 frames:
[EMAIL PROTECTED]:~/transcode> transcode -i test.mpg -o testdv.avi -x
mplayer -y dv -N 0x1 -Z 720x576 -c 0-100 -f 25 -g 1440x1080 -q 3
transcode v1.0.2 (C) 2001-2003 Thomas Oestreich, 2003-2004 T. Bitterberg
libdvdread: Encrypted DVD support unavailable.
libdvdread: Can't open file VIDEO_TS.IFO.
[tcprobe] MPEG program stream (PS)
SCR=406546928 (406575728) unit=1 @ offset 4517.5081 (sec)
att0=7, att1=0
[transcode] (probe) suggested AV correction -D 5 (200 ms) | AV 239 ms |
39 ms
(probe.c) V magic=0xf3, A magic=0xf3, V codec=0x1000000, A codec=0x50
(probe.c) V magic=, A magic=, V codec=MPEG , A codec=MPEG layer-2
[transcode] auto-probing source test.mpg (ok)
[transcode] V: import format | MPEG (V=mplayer|A=mp3)
0 frames to 100 frames
[transcode] V: AV demux/sync | (0) sync AV at PTS start - demuxer
disabled
[transcode] V: import frame | disabled
[transcode] V: zoom | 720x576 nan:1 (Lanczos3)
[transcode] V: bits/pixel | 0.174
[transcode] V: decoding fps,frc | 25.000,0
[transcode] V: Y'CbCr | YV12/I420
[transcode] A: import format | 0x50 MPEG layer-2 [48000,16,2] 384
kbps
[transcode] A: export format | 0x1 PCM [48000,16,2] 1536
kbps
[transcode] V: encoding fps,frc | 25.000,3
[transcode] A: bytes per frame | 7680 (7680.000000)
[transcode] A: adjustment | [EMAIL PROTECTED]
[transcode] A: AV shift | 239 ms [ 5 (A) | 39 ms ]
[transcode] V: IA32/AMD64 accel | sse (sse 3dnowext 3dnow mmxext mmx asm C)
tc_memcpy: using sse for memcpy
[transcode] encoder delay = decode=40000 encode=40000 usec
[transcode] V: video buffer | 10 @ 720x576
[transcode] allocating 10 framebuffer (static)
loading audio import module /usr/lib/transcode/import_mp3.so
loading video import module /usr/lib/transcode/import_mplayer.so
[import_mp3.so] v0.1.4 (2003-08-04) (audio) MPEG
Audio capability flag 0x1 | 0x1
[import_mplayer.so] v0.0.5 (2003-03-10) (video) rendered by mplayer |
(audio) rendered by mplayer
Video capability flag 0x2b | 0x2
loading audio export module /usr/lib/transcode/export_dv.so
loading video export module /usr/lib/transcode/export_dv.so
[export_dv.so] v0.5 (2003-07-24) (video) Digital Video | (audio)
MPEG/AC3/PCM
(encoder.c) audio capability flag 0xf | 0x1
(encoder.c) video capability flag 0xf | 0x2
[transcode] starting 1 frame processing thread(s)
[transcode] starting 1 frame processing thread(s)
[import_mp3.so] MP3->PCM
[import_mp3.so] tcextract -a 0 -i "test.mpg" -x mp2 -d 3 | tcdecode -x
mp2 -d 3 -z 0
[import_mplayer.so] mplayer -benchmark -noframedrop -nosound -vo
yuv4mpeg "test.mpg" -osdlevel 0 > /dev/null 2>&1
[import_mplayer.so] tcextract -i ./stream.yuv -x yv12 -t yuv4mpeg
(aud_aux.c) Debug: Audio submodule in=0x1 out=0x1
(aud_aux.c) Debug: PCM -> PCM
(aud_aux.c) Debug: AVI stream: format=0x1, rate=48000 Hz, bits=16,
channels=2, bitrate=1536
(decoder.c) audio thread id=1129491376
(decoder.c) video thread id=1131592624
tc_memcpy: using sse for memcpy
tc_memcpy: using sse for memcpy
[tcextract] (pid=7423) MPEG program stream (PS)
[tcextract] (pid=7423) starting, doing mp2
(decode_mp3.c) channels=2, samplerate=48000 Hz, bitrate=384 kbps, (1152)
(audio_trans.c) adjusted 1872 PCM samples (39 ms)
encoding frame [99], 31.18 fps, 100.0%, ETA: 0:00:00, ( 0| 0| 9)
(encoder.c) encoder last frame finished (100/100)
(encoder.c) encoder closed
(decoder.c) import stop requested by client=1076805696 (main=1076805696)
import status=1
(decoder.c) A/V import canceled (1076805696) (1076805696)
(decoder.c) video thread exit (ret_code=0) (status_code=4294967295)
(decoder.c) audio thread exit (ret_code=0) (status_code=4294967295)
(decoder.c) vframe_list_lock=0
(decoder.c) aframe_list_lock=0
clean up |(frame_threads.c) audio frame processing threads canceled
(frame_threads.c) video frame processing threads canceled
frame threads |(decoder.c) unloading audio import module
(decoder.c) unloading video import module
unloading export modules
unload modules | cancel signal | internal threads | done
[transcode] encoded 100 frames (0 dropped, 0 cloned), clip length 4.00 s
[transcode] buffer released
[EMAIL PROTECTED]:~/transcode>
The problem is, the video is just solid green, audio is fine.
If we try -x mplayer,mplayer, audio is just noise.
What am i doing wrong?
Thanks in advance
Arnold
