January 2002 - MPlayer-dev-eng - lists.mplayerhq.hu

Re: [MPlayer-dev-eng] Patch: Improved raw encoding support in mencoder
by Fredrik Kuivinen 20 Feb '02

20 Feb '02

On Thu, Jan 31, 2002 at 10:48:12AM +0100, Alex Beregszaszi wrote: > On Wed, Jan 30, 2002 at 11:53:40PM +0100, Fredrik Kuivinen wrote: > > Hi > > > > This patch is better. It don't touch -ovc raw at all. It adds a new video encoder > > called rawrgb instead which produces avi files with raw rgb data which virtualdub > > and xanim can play (but not mplayer). > > I think it can play, you need to specify the codec name: > -vc rawrgb32 .. > Hm yeah you are right... This patch removes the need for -vc when playing such files. / Fredrik Kuivinen

2 1

Text subtitle positioning
by Jiri Svoboda 20 Feb '02

20 Feb '02

Hi, I have made a little patch which enables positioning of text subtitles. Patch adds new option -subpos with parametr from 0 to 100. The value is vertical position of subtitle on screen in % of height counted from top of screen (subtitle is not verticaly centered - - it just starts with it's top on this position). JS

2 2

Old annoying bug
by Marc Lavall�e 13 Feb '02

13 Feb '02

DVD playing is still broken: --------------------------------------------------------------------- Detected audio codec: [ac3] drv:3 (AC3) !! libac3 (core v0.6.2) : using 3dNow-dsp! optimization 2.0 Mode 48.0 KHz 192 kbps Complete Main Audio Service MPlayer interrompu par le signal 11 dans le module: init_audio_codec --------------------------------------------------------------------- I read that it's caused by the ffmpeg patch. Can we expect a bugfix anytime soon? -- Marc

5 5

[PATCH] zr: jpeg_enc cleanup
by Rik Snel 10 Feb '02

10 Feb '02

Hello A'rpi, Big cleanup for jpeg_enc.c . This patch depends on some small changes to libavcodec that I sent to ffmpeg-devel. Please apply. Greetings, Rik. -------- Nothing is ever a total loss; it can always serve as a bad example.

5 6

[PATCH] autodetect screen size for vo_mga fullscreen
by Jason Lunz 07 Feb '02

07 Feb '02

I liked the TOOLS/mpconsole script, but I think mplayer's vo_mga should be able to detect the screen size if fbset can. So I wrote this patch to make vo_mga autodetect the -screenh and -screenw parameters if they're not specified. The patch is against current CVS, and it works for me. thanks for the great work on mplayer, Jason Index: libvo/vo_mga.c =================================================================== RCS file: /cvsroot/mplayer/main/libvo/vo_mga.c,v retrieving revision 1.20 diff -u -r1.20 vo_mga.c --- libvo/vo_mga.c 26 Jan 2002 16:01:26 -0000 1.20 +++ libvo/vo_mga.c 30 Jan 2002 05:33:07 -0000 @@ -27,6 +27,7 @@ #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <linux/fb.h> #include "config.h" #include "video_out.h" @@ -54,11 +55,29 @@ #include "mga_common.c" +#define FBDEV "/dev/fb0" + static uint32_t init(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format) { char *devname=vo_subdevice?vo_subdevice:"/dev/mga_vid"; + if(0 == vo_screenwidth || 0 == vo_screenheight) { + int fd; + struct fb_var_screeninfo fbinfo; + + if(-1 != (fd = open(FBDEV, O_RDONLY))) { + if(0 == ioctl(fd, FBIOGET_VSCREENINFO, &fbinfo)) { + if(!vo_screenwidth) vo_screenwidth = fbinfo.xres; + if(!vo_screenheight) vo_screenheight = fbinfo.yres; + } else { + perror("FBIOGET_VSCREENINFO"); + } + close(fd); + } else { + perror(FBDEV); + } + } if(vo_screenwidth && vo_screenheight){ aspect_save_orig(width,height); aspect_save_prescale(d_width,d_height);

4 9

Writing A New File Demuxer
by Mike Melanson 02 Feb '02

02 Feb '02

Hi team, I want to implement a new file demuxer (and still have to finish the FILM one). Both of these have both video and audio, unlike the video-only FLI files for which I've written a decoder before. I just want to see if I have some general concepts straight. Correct me if I have anything wrong. First, the demuxer opens the file. In doing so, it creates new sh_video_t and sh_audio_t structures. It parses information from the file and loads up a bunch of fields in those structures, e.g., width, height, framerate, codec for video and samplerate, samplesize, channels, codec for audio. Question: Is it necessary to load up the bitmapinfo and waveheader structure fields in these stream headers? I didn't bother in the FLI decoder and it didn't seem to matter. Was that because I didn't bother to use it in the FLI video decoder? Then, build a private chunk index for the sequence of compressed data chunks in the file, marking whether they're audio or video chunks, and store the index in demuxer->priv. Next, when the demuxer's fill_buffer() routine is called, load the next chunk in the file, as privately tracked by the demuxer, determine whether it's an audio or video chunk and read it into the appropriate stream using ds_read_packet(), passing either demuxer->audio or demuxer->video depending on the chunk type. As for seeking, it doesn't look like this new format has any support for key frames. The FILM format may, but I haven't figure out exactly which bit in the index may refer to a key frame. Do I have that right? Any key points missing? Thanks... -- -Mike Melanson

2 2

Re: [Mplayer-cvslog] CVS: main/libvo vo_x11.c,1.51,1.52
by Attila Kinali 01 Feb '02

01 Feb '02

On Wed, 30 Jan 2002 16:26:13 +0100 Michael Niedermayer <michael(a)mplayer.dev.hu> wrote: > Update of /cvsroot/mplayer/main/libvo > In directory mplayer:/var/tmp.root/cvs-serv30818 > > Modified Files: > vo_x11.c > Log Message: > real window resizeing support (i know nearly nothing > about x11 so feel free to fix / reverse it, if its broken) I dont understand it, but it works here :) BTW: Is there any reason why -zoom doesnt work with all codecs ? Looks like it works only with YV12 planes, but not with BGR. Attila Kinali

8 13

xine avi subtitle decoder licensing issue
by bartscgr＠t-online.de 31 Jan '02

31 Jan '02

Hallo mplayer-developers, there's a little discussion going on on the xine-user mailing list about the avi subtitle decoder code in xine. Although it's not a 1:1 copy of your code it's clearly based on MPlayer's subreader.c (don't know which version, though). I'd like to settle this as quickly as possible, so my question is: Is it ok to GPL that code or do you want me to replace src/libsputext/xine_decoder.c (from the xine-lib package) ? (it's not a big deal as the code isn't working properly and cannot handle unicode, so it needs to be worked on anyway) Cheers - and keep up the good work, Guenter -- time is a funny concept

4 7

Re: [MPlayer-dev-eng] Patch: Improved raw encoding support in mencoder
by Fredrik Kuivinen 31 Jan '02

31 Jan '02

Hi This patch is better. It don't touch -ovc raw at all. It adds a new video encoder called rawrgb instead which produces avi files with raw rgb data which virtualdub and xanim can play (but not mplayer). / Fredrik Kuivinen

2 1

Need help with inline assembly
by Anders Johansson 31 Jan '02

31 Jan '02

Hi, Trying to solve a strange problem: I am working on assembly optimisations for the audio resampling plugin. I have the algorithm implemented and working (I have tested it in another program), but as soon as I enable it in mplayer the synchronisation between sound and video disappears. The smallest piece of code that can reproduce the error is: int x; __asm __volatile("movq %0, %%mm0 \n\t" : :"m"((x))); If this piece of code is included anywhere (in mplayer.c for example) the synchronisation between sound and video disappears (sometimes it just crashes). I am guessing compiler switch or directive. My processor is a P3 with gcc 2.95.4. Would be happy for any type of assistance, thank you in advance, //Anders

3 3