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mpv/libmpcodecs/vd_dmo.c
2010-04-26 18:46:18 +03:00

138 lines
4.0 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#if HAVE_MALLOC_H
#include <malloc.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include "mp_msg.h"
#include "vd_internal.h"
#include "loader/dmo/DMO_VideoDecoder.h"
static const vd_info_t info = {
"DMO video codecs",
"dmo",
"A'rpi",
"based on http://avifile.sf.net",
"win32 codecs"
};
LIBVD_EXTERN(dmo)
struct context {
void *decoder;
uint8_t *buffer;
int stride;
};
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
return CONTROL_UNKNOWN;
}
// init driver
static int init(sh_video_t *sh){
unsigned int out_fmt=sh->codec->outfmt[0];
struct context *ctx;
void *decoder;
if(!(decoder=DMO_VideoDecoder_Open(sh->codec->dll,&sh->codec->guid, sh->bih, 0, 0))){
mp_tmsg(MSGT_DECVIDEO,MSGL_ERR,"ERROR: Could not open required DirectShow codec %s.\n",sh->codec->dll);
mp_tmsg(MSGT_DECVIDEO,MSGL_HINT,"You need to upgrade/install the binary codecs package.\nGo to http://www.mplayerhq.hu/dload.html\n");
return 0;
}
if(!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,out_fmt)) return 0;
// mpcodecs_config_vo can change the format
out_fmt=sh->codec->outfmt[sh->outfmtidx];
sh->context = ctx = calloc(1, sizeof(*ctx));
ctx->decoder = decoder;
switch(out_fmt){
case IMGFMT_YUY2:
case IMGFMT_UYVY:
DMO_VideoDecoder_SetDestFmt(ctx->decoder,16,out_fmt);break; // packed YUV
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
DMO_VideoDecoder_SetDestFmt(ctx->decoder,12,out_fmt);break; // planar YUV
case IMGFMT_YVU9:
DMO_VideoDecoder_SetDestFmt(ctx->decoder,9,out_fmt);break;
case IMGFMT_RGB24:
case IMGFMT_BGR24:
if (sh->disp_w & 3)
{
ctx->stride = ((sh->disp_w * 3) + 3) & ~3;
ctx->buffer = av_malloc(ctx->stride * sh->disp_h);
}
default:
DMO_VideoDecoder_SetDestFmt(ctx->decoder,out_fmt&255,0); // RGB/BGR
}
DMO_VideoDecoder_StartInternal(ctx->decoder);
mp_tmsg(MSGT_DECVIDEO,MSGL_V,"INFO: Win32/DMO video codec init OK.\n");
return 1;
}
// uninit driver
static void uninit(sh_video_t *sh){
struct context *ctx = sh->context;
DMO_VideoDecoder_Destroy(ctx->decoder);
av_free(ctx->buffer);
free(ctx);
sh->context = NULL;
}
//mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
struct context *ctx = sh->context;
uint8_t *buffer = ctx->buffer;
int type = ctx->buffer ? MP_IMGTYPE_EXPORT : MP_IMGTYPE_TEMP;
mp_image_t* mpi;
if(len<=0) return NULL; // skipped frame
if(flags&3){
// framedrop:
DMO_VideoDecoder_DecodeInternal(ctx->decoder, data, len, 0, 0);
return NULL;
}
mpi=mpcodecs_get_image(sh, type, MP_IMGFLAG_COMMON_PLANE,
sh->disp_w, sh->disp_h);
if (buffer) {
mpi->planes[0] = buffer;
mpi->stride[0] = ctx->stride;
} else {
buffer = mpi->planes[0];
}
if(!mpi){ // temporary!
mp_tmsg(MSGT_DECVIDEO,MSGL_WARN,"[VD_DMO] Couldn't allocate image for cinepak codec.\n");
return NULL;
}
DMO_VideoDecoder_DecodeInternal(ctx->decoder, data, len, 1, buffer);
return mpi;
}