August 2004 - MPlayer-dev-eng - lists.mplayerhq.hu

Synchronization of players in LAN
by J.A. Gutierrez 18 Jun '08

18 Jun '08

Hello I'm trying to synchronise several players running on several computers connected to a dedicated 10/100 Ethernet switch. Each one reads a different movie (video only) from its internal hard disk, and resolution will be 768x576. I'm thinking of a simple solution: - Add some code at mplayer startup so it will wait for an UDP broadcast packet (sent by a central master in the LAN). This way all the players would start at the same time. - Use NTP to keep in sync all the computers' clocks, and trust mplayer's rtc synchronisation feature. With this simple setup, could we be sure all the players would keep the synchronisation? Or should the master computer track them all and take control on their speeds? How difficult would be to add code so all the player synchronise using the LAN? Or should I use some external clock connected to all serial ports? Or use a totally different approach? Thanks. -- finger spd(a)shiva.cps.unizar.es for PGP / .mailcap tip of the day: / La vida es una carcel application/ms-tnef; cat '%s' > /dev/null / con las puertas abiertas text/x-vcard; cat '%s' > /dev/null / (A. Calamaro)

14 40

[PATCH] supress zero frames in index regeneration
by Yue Shi Lai 06 Apr '06

06 Apr '06

Hi, This patch supresses zero-length frames being mistaken for keyframes during regeneration of the AVI index ("-forceidx"). Yue Shi Lai -- ______________________________________________ Check out the latest SMS services @ http://www.linuxmail.org This allows you to send and receive SMS through your mailbox. Powered by Outblaze

4 3

[PATCH] -wid: get initial window geometry
by kiriuja 21 May '05

21 May '05

When -wid option is used, most VOs that support it start playing video at its original (unscaled) size in the top left corner of the window, and only scale it to the full window upon receipt of a ConfigureNotify event, if and when the window is resized. Also some VOs forget to map the window back after unmapping it and setting attributes, again when -wid is in use. Attached patch solved the problem here. It would remove the need for (some of) ugly hackery in MPlayer frontends. -- kiriuja

5 9

[PATCH] don't skip first mp3 frame
by Nehal 08 Jan '05

08 Jan '05

for some reason, the current code skips the first frame of mp3 files (using any decoder), i'm assuming this is a bug as i can't see any good reason for this. this probably isn't noticeable with most files, but i have a couple of test cases that have audible sound data in the first frame. if someone wants, email me and i'll send you the starting part of the files for testing purposes. please apply the patch that i've attached Nehal

8 35

[BUG] [PATCH] DPMS left enabled after changing DVB-channel
by David Kuehling 29 Dec '04

29 Dec '04

Hi, there is a new bug in recent mplayer-cvs: after changing the channel in DVB-input, DPMS is enabled (from `vo_x11_uninit') and not disabled again, when the next channel comes up, resulting (for me) in a blank screen after some minutes. This problem never happened for me with an earlier (approx 3 months) cvs-version. You find a simple one-line patch attached that fixes the problem for me (moving `saver_on' from `vo_x11_uninit' to `vo_uninit'). There might, however be side effects, so maybe someone with better understanding should look at it. David -- GnuPG public key: http://user.cs.tu-berlin.de/~dvdkhlng/dk.gpg Fingerprint: B17A DC95 D293 657B 4205 D016 7DEF 5323 C174 7D40

4 4

Re: [PATCH] Fix cut off last few seconds of a file
by Julián Nuñez 28 Dec '04

28 Dec '04

Mikulas Patocka <mikulas(a)artax.karlin.mff.cuni.cz> wrote: >Hi > >When the stream has only audio data, the position is incorrectly displayed >(not taking into account audio buffer). This is visible especially on >soundcard drivers with large buffer. The bug is caused by a typo --- >10 * sh_audio->delay is in tenths of seconds, however >audio_out->get_delay() returns seconds, so it doesn't make sense to >subtract them. This patch fixes it (it also fixes wrong display with >different -speed) > >Mikulas > >------------------------------------------------------------------------ > >--- ../mplayer-1.0pre4-bak/mplayer.c 2004-05-20 13:22:48.000000000 +0100 >+++ mplayer.c 2004-08-01 18:38:21.000000000 +0100 >@@ -2013,7 +2013,7 @@ > // > // convert time to HH:MM:SS.F format > // >- long tenths = 10 * sh_audio->delay-audio_out->get_delay(); >+ long tenths = 10 * (sh_audio->delay-audio_out->get_delay()*playback_speed); > int hh = (tenths / 36000) % 100; > int mm = (tenths / 600) % 60; > int ss = (tenths / 10) % 60; > > > > ------------------------------------------------------------------------ > > Subject: > [MPlayer-dev-eng] [PATCH] Fix cut off last few seconds of a file > From: > Mikulas Patocka <mikulas(a)artax.karlin.mff.cuni.cz> > Date: > Mon, 2 Aug 2004 17:16:17 +0200 (CEST) > To: > mplayer-dev-eng(a)mplayerhq.hu > > >Hi > >When audio buffer is X seconds large and mplayer is playing audio-only >stream, it doesn't play last X seconds (it ends at the point when all the >stream is decoded, not at the point when sound card buffer is finished). >This patch fixes it. > >Mikulas > >------------------------------------------------------------------------ > >--- MPLAYER.C~ 2004-08-01 22:24:36.000000000 +0100 >+++ mplayer.c 2004-08-02 04:36:24.000000000 +0100 >@@ -2044,7 +2044,7 @@ > ,cache_fill_status > ); > } >- if(d_audio->eof) eof = PT_NEXT_ENTRY; >+ if(d_audio->eof && !audio_out->get_delay()) eof = PT_NEXT_ENTRY; > > } else { > > > Sorry for my ignorance, but did this two parches got applied? They work great for me. -- "El verdadero valor esta en hacer sin testigos, lo que podría hacerse delante de todo el mundo"

4 3

Fw: bug? which leads to vo/encoder reinit during playback / transcode
by Stefan Seyfried 20 Dec '04

20 Dec '04

Hi, i already sent this to mplayer-users but got no replies. So if this may be of any interest for someone, here it is again. ---forwarded message from Stefan Seyfried, Thu, Jul 15, 2004------ Hi, i found a dvd which causes some strange behaviour during transcoding and viewing: when viewing, the vo seems to be reinitialized every now and then and i get something like that on the console: Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit... Starting playback... VDec: vo config request - 720 x 576 (preferred csp: Planar YV12) VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. VO: [xv] 720x576 => 1024x576 Planar YV12 VDec: vo config request - 720 x 576 (preferred csp: Planar YV12) 1 0 0% VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. VO: [xv] 720x576 => 1024x576 Planar YV12 VDec: vo config request - 720 x 576 (preferred csp: Planar YV12) 1 0 0% VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. VO: [xv] 720x576 => 1024x576 Planar YV12 VDec: vo config request - 720 x 576 (preferred csp: Planar YV12) 1 0 0% VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. VO: [xv] 720x576 => 1024x576 Planar YV12 VDec: vo config request - 720 x 576 (preferred csp: Planar YV12) 1 0 0% VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. VO: [xv] 720x576 => 1024x576 Planar YV12 VDec: vo config request - 720 x 576 (preferred csp: Planar YV12) 1 0 0% VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. VO: [xv] 720x576 => 1024x576 Planar YV12 A: 124,5 V: 124,5 A-V: -0,000 ct: 0,087 613/613 11% 8% 2,3% 1 0 0% Exiting... (Quit) When transcoding, almost the same happens: MEncoder dev-CVS-040713-17:13-3.3.3 (C) 2000-2004 MPlayer Team CPU: Intel Pentium 4/Xeon/Celeron Foster 2807 MHz (Family: 8, Stepping: 9) Detected cache-line size is 64 bytes CPUflags: Type: 8 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1 Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2 Reading /suse/seife/.mplayer/codecs.conf: Can't open '/suse/seife/.mplayer/codecs.conf': No such file or directory Reading /usr/local/etc/mplayer/codecs.conf: Can't open '/usr/local/etc/mplayer/codecs.conf': No such file or directory Using built-in default codecs.conf. File not found: 'frameno.avi' Failed to open frameno.avi Reading config file /suse/seife/.mplayer/mencoder: No such file or directory Font /suse/seife/.mplayer/font/font.desc loaded successfully! (206 chars) success: format: 0 data: 0x0 - 0x2A58A800 MPEG-PS file format detected. VIDEO: MPEG2 720x576 (aspect 3) 25,000 fps 7500,0 kbps (937,5 kbyte/s) [V] filefmt:2 fourcc:0x10000002 size:720x576 fps:25,00 ftime:=0,0400 Opening video filter: [expand osd=1] Expand: -1 x -1, -1 ; -1 (-1=autodetect) osd: 1 Opening video filter: [dsize=640:272] Opening video filter: [scale w=640 h=272] Opening video filter: [crop w=712 h=432] Crop: 712 x 432, -1 ; -1 ========================================================================== Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough VDec: vo config request - 720 x 576 (preferred csp: Mpeg PES) Could not find matching colorspace - retrying with -vf scale... Opening video filter: [scale] The selected video_out device is incompatible with this codec. VDecoder init failed :( Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.3.1 Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG 1 or 2 (libmpeg2)) ========================================================================== Writing AVI header... ODML: Aspect information not (yet?) available or unspecified, not writing vprp header. VDec: vo config request - 720 x 576 (preferred csp: Planar YV12) VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. SwScaler: reducing / aligning filtersize 6 -> 8 SwScaler: reducing / aligning filtersize 6 -> 8 SwScaler: reducing / aligning filtersize 8 -> 7 SwScaler: reducing / aligning filtersize 8 -> 7 SwScaler: BICUBIC scaler, from Planar YV12 to Planar YV12 using MMX2 videocodec: libavcodec (640x272 fourcc=58564944 [DIVX]) High quality encoding selected (non real time)! VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)780:0] VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. videocodec: libavcodec (640x272 fourcc=58564944 [DIVX]) High quality encoding selected (non real time)! Could not open codec. FATAL: Cannot initialize video driver. Pos: 113,8s 2848f ( 1%) 28fps Trem: 96min 603mb A-V:0,000 [780:0] 1 duplicate frame(s)! VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)790:0] VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. videocodec: libavcodec (640x272 fourcc=58564944 [DIVX]) High quality encoding selected (non real time)! Could not open codec. FATAL: Cannot initialize video driver. Pos: 114,4s 2861f ( 1%) 28fps Trem: 95min 609mb A-V:0,000 [790:0] 1 duplicate frame(s)! VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)802:0] VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. videocodec: libavcodec (640x272 fourcc=58564944 [DIVX]) High quality encoding selected (non real time)! Could not open codec. FATAL: Cannot initialize video driver. Pos: 114,9s 2874f ( 1%) 28fps Trem: 95min 616mb A-V:0,000 [802:0] 1 duplicate frame(s)! VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)932:0] VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. videocodec: libavcodec (640x272 fourcc=58564944 [DIVX]) High quality encoding selected (non real time)! Could not open codec. FATAL: Cannot initialize video driver. Pos: 120,6s 3017f ( 1%) 28fps Trem: 92min 708mb A-V:0,000 [932:0] 1 duplicate frame(s)! VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)956:0] VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. videocodec: libavcodec (640x272 fourcc=58564944 [DIVX]) High quality encoding selected (non real time)! Could not open codec. FATAL: Cannot initialize video driver. Pos: 121,1s 3030f ( 1%) 28fps Trem: 92min 725mb A-V:0,000 [956:0] 1 duplicate frame(s)! VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)1061:0] VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1,78:1 - prescaling to correct movie aspect. videocodec: libavcodec (640x272 fourcc=58564944 [DIVX]) High quality encoding selected (non real time)! Could not open codec. FATAL: Cannot initialize video driver. Pos: 136,7s 3420f ( 2%) 29fps Trem: 88min 801mb A-V:0,000 [1061:0] and so on. commandline is: LAVC="vcodec=mpeg4:vme=4:cmp=2:precmp=2:subcmp=2:dia=1:predia=1:vmax_b_frames=0:mbd=2:mv0:v4mv:vbitrate=724" SCALE="-vf crop=712:432,scale=640:272,dsize=640:272" time mencoder -ovc lavc -lavcopts $LAVC:vpass=1 \ -nosound $SCALE \ -o ${N}_video1.avi stream.dump and the same with vpass=2 The problem is, that with every time the encoder is reinitialized, it gives a "visual burp", like a missed keyframe or something like that. a sample of the stream.dump is in ftp.mplayerhq.hu/MPlayer/incoming/stream-which-leads-to-encoder-reinit I also put up a sample of the transcoded part as well. I tried to recode the same stream with avidemux2 but it segfaulted after the first pass :-) so there is no comparison. It does not matter if i rip it directly from the dvd or from stream.dump. Also, dumping the dvd with transcode shows the same behaviour. -- Stefan Seyfried

19 40

[PATCH] unbreak libmpcodecs/ve_x264.c
by Björn Sandell 18 Dec '04

18 Dec '04

SSIA -- Björn Sandell DCE/DFS Sysadmin IT department Chalmers University of Technology www.dce.chalmers.se

6 7

[PATCH] clean and cross-compilation
by Kenny (Constantine Shulyupin) 09 Dec '04

09 Dec '04

Hi, 1. Now clean makes what is really expected. 2. When compiling with crosscompiler, codec-cfg.c utility should be compiled with local compiler.

6 6

[PATCH] ve_lavc delayed frames
by Loren Merritt 01 Dec '04

01 Dec '04

When encoding to lavc with b-frames, mencoder emits some dummy frames at the beginning of the output video (because lavc hasn't returned any compressed frames yet). This causes A-V desync, and (the case that I first noticed) messes with timestamps in a variable-framerate video. This patch supresses the dummy frames. I also noticed that mencoder drops the last few frames (for the same reason). I don't know a good fix for this: avcodec.h says to feed in some NULL data at the end. So I tried simply calling put_image(vf, NULL), which does flush the delayed frames, but doesn't stop them from being encoded as B-frames based on the NULLs. --Loren Merritt

5 10