mirror of
https://github.com/mpv-player/mpv
synced 2024-10-30 04:46:41 +01:00
6d5fee309b
patch by From: John Wehle <john@feith.com> git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11767 b3059339-0415-0410-9bf9-f77b7e298cf2
139 lines
4.1 KiB
C
139 lines
4.1 KiB
C
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "config.h"
|
|
#include "mp_msg.h"
|
|
|
|
#include "vd_internal.h"
|
|
|
|
#define TEMP_BUF_SIZE (720*576)
|
|
|
|
static vd_info_t info = {
|
|
"Hauppauge Macroblock/NV12/NV21 Decoder",
|
|
"hmblck",
|
|
"Alex <d18c7db@hotmail.com>, A'rpi, Alex Beregszaszi",
|
|
"Alex <d18c7db@hotmail.com>",
|
|
"uncompressed"
|
|
};
|
|
|
|
LIBVD_EXTERN(hmblck)
|
|
|
|
static void de_macro_y(unsigned char* dst,unsigned char* src,int dstride,int w,int h){
|
|
unsigned int y;
|
|
// descramble Y plane
|
|
for (y=0; y<h; y+=16) {
|
|
unsigned int x;
|
|
for (x=0; x<w; x+=16) {
|
|
unsigned int i;
|
|
for (i=0; i<16; i++) {
|
|
memcpy(dst + x + (y+i)*dstride, src, 16);
|
|
src+=16;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void de_macro_uv(unsigned char* dstu,unsigned char* dstv,unsigned char* src,int dstride,int w,int h){
|
|
unsigned int y;
|
|
// descramble U/V plane
|
|
for (y=0; y<h; y+=16) {
|
|
unsigned int x;
|
|
for (x=0; x<w; x+=8) {
|
|
unsigned int i;
|
|
for (i=0; i<16; i++) {
|
|
int idx=x + (y+i)*dstride;
|
|
dstu[idx+0]=src[0]; dstv[idx+0]=src[1];
|
|
dstu[idx+1]=src[2]; dstv[idx+1]=src[3];
|
|
dstu[idx+2]=src[4]; dstv[idx+2]=src[5];
|
|
dstu[idx+3]=src[6]; dstv[idx+3]=src[7];
|
|
dstu[idx+4]=src[8]; dstv[idx+4]=src[9];
|
|
dstu[idx+5]=src[10]; dstv[idx+5]=src[11];
|
|
dstu[idx+6]=src[12]; dstv[idx+6]=src[13];
|
|
dstu[idx+7]=src[14]; dstv[idx+7]=src[15];
|
|
src+=16;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*************************************************************************
|
|
* convert a nv12 buffer to yv12
|
|
*/
|
|
static int nv12_to_yv12(void *data, int len, mp_image_t* mpi, int swapped) {
|
|
unsigned int Y_size = mpi->width * mpi->height;
|
|
unsigned int UV_size = mpi->chroma_width * mpi->chroma_height;
|
|
unsigned int idx;
|
|
unsigned char *dst_Y = mpi->planes[0];
|
|
unsigned char *dst_U = mpi->planes[1];
|
|
unsigned char *dst_V = mpi->planes[2];
|
|
unsigned char *src = data + Y_size;
|
|
|
|
// sanity check raw stream
|
|
if ( (len != (Y_size + (UV_size<<1))) ) {
|
|
mp_msg(MSGT_DECVIDEO, MSGL_ERR,
|
|
"hmblck: Image size inconsistent with data size.\n");
|
|
return 0;
|
|
}
|
|
if ( (mpi->width > 720) || (mpi->height > 576) ) {
|
|
mp_msg(MSGT_DECVIDEO,MSGL_ERR,
|
|
"hmblck: Image size is too big.\n");
|
|
return 0;
|
|
}
|
|
if (mpi->num_planes != 3) {
|
|
mp_msg(MSGT_DECVIDEO,MSGL_ERR,
|
|
"hmblck: Incorrect number of image planes.\n");
|
|
return 0;
|
|
}
|
|
|
|
// luma data is easy, just copy it
|
|
memcpy(dst_Y, data, Y_size);
|
|
|
|
// chroma data is interlaced UVUV... so deinterlace it
|
|
for(idx=0; idx<UV_size; idx++ ) {
|
|
*(dst_U + idx) = *(src + (idx<<1) + (swapped ? 1 : 0));
|
|
*(dst_V + idx) = *(src + (idx<<1) + (swapped ? 0 : 1));
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* 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){
|
|
return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,sh->format);
|
|
}
|
|
/*************************************************************************
|
|
* uninit driver
|
|
*/
|
|
static void uninit(sh_video_t *sh){
|
|
}
|
|
/*************************************************************************
|
|
* decode a frame
|
|
*/
|
|
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
|
|
mp_image_t* mpi;
|
|
|
|
if(len<=0) return NULL; // skipped frame
|
|
|
|
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
|
|
sh->disp_w, sh->disp_h);
|
|
if(!mpi) return NULL;
|
|
|
|
if(sh->format == IMGFMT_HM12) {
|
|
//if(!de_macro(sh, data, len, flags, mpi)) return NULL;
|
|
de_macro_y(mpi->planes[0],data,mpi->stride[0],mpi->w,mpi->h);
|
|
de_macro_uv(mpi->planes[1],mpi->planes[2],data+mpi->w*mpi->h,mpi->stride[1],mpi->w/2,mpi->h/2);
|
|
} else {
|
|
if(!nv12_to_yv12(data, len, mpi,(sh->format == IMGFMT_NV21))) return NULL;
|
|
}
|
|
|
|
return mpi;
|
|
}
|
|
/*************************************************************************/
|