I’m trying to encode my DVD recording to AVI file using mencoder but I’m unable.
That command:
Code:
mencoder -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=$bitrate:vhq:vqmin=2:vqmax=31 -vf scale -zoom -xy 640 -vf pp=lb -dvd-speed 2 dvd://1 -o video.avi
works perfect.
That command:
Code:
mencoder -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=$bitrate:vhq:vqmin=2:vqmax=31 -vf scale -zoom -xy 640 -vf pp=lb -dvd-speed 2 -ss 0:7:12 -endpos 0:43:57 dvd://1 -o video.avi
gives empty video.avi file and catches TERM signal so to kill it I have to use KILL (9) signal.
The only difference between above commands are switches -ss 0:7:12 and -endpos 0:43:57 determining the beginning and the end of the movie.
Both these commands start in the same way.
At the beginning they display such messages:
Code:
MEncoder r29390-4.3.3 (C) 2000-2009 MPlayer Team
Limiting DVD speed to 2700KB/s... successful
libdvdread: Using libdvdcss version 1.2.10 for DVD access
*** Zero check failed in libdvdread4/ifo_read.c:518
for vmgi_mat->zero_3 = 0x00000000010000000000000000000000000000
There are 4 titles on this DVD.
There are 1 angles in this DVD title.
Then there is a lot of such messages:
Code:
*** libdvdread: CHECK_VALUE failed in libdvdread4/ifo_read.c:1602 ***
*** for c_adt->cell_adr_table[i].start_sector < c_adt->cell_adr_table[i].last_sector ***
Next such messages:
Code:
libdvdread: Attempting to retrieve all CSS keys
libdvdread: This can take a _long_ time, please be patient
libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x00001100
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x00004000
libdvdread: Elapsed time 0
libdvdread: Found 1 VTS's
libdvdread: Elapsed time 0
audio stream: 0 format: ac3 (stereo) language: unknown aid: 128.
number of audio channels on disk: 1.
subtitle ( sid ): 0 language: unknown
number of subtitles on disk: 1
success: format: 2 data: 0x0 - 0xabc86800
*** libdvdread: CHECK_VALUE failed in libdvdread4/nav_read.c:264 ***
*** for dsi->dsi_gi.zero1 == 0 ***
*** libdvdread: CHECK_VALUE failed in libdvdread4/nav_read.c:264 ***
*** for dsi->dsi_gi.zero1 == 0 ***
MPEG-PS file format detected.
VIDEO: MPEG2 720x576 (aspect 2) 25.000 fps 8000.0 kbps (1000.0 kbyte/s)
[V] filefmt:2 fourcc:0x10000002 size:720x576 fps:25.000 ftime:=0.0400
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, s16le, 256.0 kbit/16.67% (ratio: 32000->192000)
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [pp=lb]
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 576 (preferred colorspace: Mpeg PES)
[PP] Using external postprocessing filter, max q = 6.
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
VDecoder init failed :(
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Unsupported PixelFormat -1
Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
==========================================================================
audiocodec: framecopy (format=2000 chans=2 rate=48000 bits=16 B/s=32000 sample-1)
*** libdvdread: CHECK_VALUE failed in libdvdread4/nav_read.c:264 ***
*** for dsi->dsi_gi.zero1 == 0 ***
At this point there is the first difference between the output of these commands.
The first command displays such messages:
Code:
VDec: vo config request - 720 x 576 (preferred colorspace: Planar YV12)
[PP] Using external postprocessing filter, max q = 6.
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
videocodec: libavcodec (720x576 fourcc=34504d46 [FMP4])
[VE_LAVC] High quality encoding selected (non-realtime)!
[mpeg2video @ 0x8e3b820]ac-tex damaged at 15 1
[mpeg2video @ 0x8e3b820]Warning MVs not available
[mpeg2video @ 0x8e3b820]concealing 1575 DC, 1575 AC, 1575 MV errors
Writing header...1f ( 0%) 0.00fps Trem: 0min 0mb A-V:0.000 [0:0]
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
and then starts to encode the movie:
Code:
Pos: 0.0s 2f ( 0%) 0.00fps Trem: 0min 0mb A-V:-0.003 [0:0]
*** libdvdread: CHECK_VALUE failed in libdvdread4/nav_read.c:264 ***
*** for dsi->dsi_gi.zero1 == 0 ***
Pos: 0.5s 14f ( 0%) 0.00fps Trem: 0min 0mb A-V:0.045 [0:0]
*** libdvdread: CHECK_VALUE failed in libdvdread4/nav_read.c:264 ***
*** for dsi->dsi_gi.zero1 == 0 ***
Pos: 1.0s 26f ( 0%) 25.67fps Trem: 0min 0mb A-V:0.081 [0:256]
Skipping frame!
Pos: 1.0s 28f ( 0%) 27.29fps Trem: 0min 0mb A-V:0.044 [1671:256]
*** libdvdread: CHECK_VALUE failed in libdvdread4/nav_read.c:264 ***
*** for dsi->dsi_gi.zero1 == 0 ***
The second command displays infinitely such messages:
Code:
*** libdvdread: CHECK_VALUE failed in libdvdread4/nav_read.c:264 ***
*** for dsi->dsi_gi.zero1 == 0 ***
and doesn’t start to encode the movie.
What can I do to be able to encode selected fragments of recorded programs? Every help will be welcomed.
