virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

Add GNU header, remove X includes, add more check for xvmc render packet

Browse Source 
Originally committed as revision 2097 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ivan Kalvachev 2003-07-29 14:15:28 +00:00
parent 782b80d9dd
commit 302898fcbe
1 changed files with 33 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
libavcodec/xvmcvideo.c
View File

@ -1,18 +1,27 @@
/*
* XVideo Motion Compensation
* Copyright (c) 2003 Ivan Kalvachev
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <limits.h>
//X11 include
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/extensions/Xv.h>
#include <X11/extensions/Xvlib.h>
#include <X11/extensions/XvMClib.h>
#include "xvmc_render.h"
//avcodec include
#include "avcodec.h"
#include "dsputil.h"
@ -26,6 +35,13 @@
#endif
#ifdef HAVE_XVMC
//X11 includes are in the xvmc_render.h
//by replacing it with none-X one
//XvMC emulation could be performed
#include "xvmc_render.h"
//#include "xvmc_debug.h"
static int calc_cbp(MpegEncContext *s, int blocknum){
@ -47,8 +63,11 @@ int XVMC_field_start(MpegEncContext*s, AVCodecContext *avctx){
xvmc_render_state_t * render,* last, * next;
assert(avctx != NULL);
render = (xvmc_render_state_t*)s->current_picture.data[2];
assert(render != NULL);
if( (render == NULL) || (render->magic != MP_XVMC_RENDER_MAGIC) )
return -1;//make sure that this is render packet
render->picture_structure = s->picture_structure;
render->flags = (s->first_field)? 0: XVMC_SECOND_FIELD;
@ -66,12 +85,15 @@ xvmc_render_state_t * render,* last, * next;
next = (xvmc_render_state_t*)s->next_picture.data[2];
assert(next!=NULL);
assert(next->state & MP_XVMC_STATE_PREDICTION);
if(next == NULL) return -1;
if(next->magic != MP_XVMC_RENDER_MAGIC) return -1;
render->p_future_surface = next->p_surface;
//no return here, going to set forward prediction
case P_TYPE:
last = (xvmc_render_state_t*)s->last_picture.data[2];
if(last == NULL)// && !s->first_field)
last = render;//predict second field from the first
if(last->magic != MP_XVMC_RENDER_MAGIC) return -1;
assert(last->state & MP_XVMC_STATE_PREDICTION);
render->p_past_surface = last->p_surface;
return 0;
@ -126,6 +148,7 @@ const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
assert(render!=NULL);
assert(render->magic==MP_XVMC_RENDER_MAGIC);
assert(render->mv_blocks);
//take the next free macroblock
mv_block = &render->mv_blocks[render->start_mv_blocks_num +
render->filled_mv_blocks_num ];