RepoMirrors
/
mpv
mirror of https://github.com/mpv-player/mpv
1
0
Fork 0
Code Issues Releases Wiki Activity
mpv/libmpcodecs/vd_realvid.c

432 lines
12 KiB
C
Raw Blame History

#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#ifdef HAVE_LIBDL
#include <dlfcn.h>
#endif
#include "mp_msg.h"
#include "help_mp.h"
#include "vd_internal.h"
#include "loader/wine/windef.h"
static vd_info_t info = {
"RealVideo decoder",
"realvid",
"Alex Beregszaszi",
"Florian Schneider, Arpad Gereoffy, Alex Beregszaszi, Donnie Smith",
"binary real video codecs"
};
LIBVD_EXTERN(realvid)
/*
* Structures for data packets. These used to be tables of unsigned ints, but
* that does not work on 64 bit platforms (e.g. Alpha). The entries that are
* pointers get truncated. Pointers on 64 bit platforms are 8 byte longs.
* So we have to use structures so the compiler will assign the proper space
* for the pointer.
*/
typedef struct cmsg_data_s {
uint32_t data1;
uint32_t data2;
uint32_t* dimensions;
} cmsg_data_t;
typedef struct transform_in_s {
uint32_t len;
uint32_t unknown1;
uint32_t chunks;
uint32_t* extra;
uint32_t unknown2;
uint32_t timestamp;
} transform_in_t;
static unsigned long (*rvyuv_custom_message)(cmsg_data_t* ,void*);
static unsigned long (*rvyuv_free)(void*);
static unsigned long (*rvyuv_init)(void*, void*); // initdata,context
static unsigned long (*rvyuv_transform)(char*, char*,transform_in_t*,unsigned int*,void*);
#ifdef USE_WIN32DLL
static unsigned long WINAPI (*wrvyuv_custom_message)(cmsg_data_t* ,void*);
static unsigned long WINAPI (*wrvyuv_free)(void*);
static unsigned long WINAPI (*wrvyuv_init)(void*, void*); // initdata,context
static unsigned long WINAPI (*wrvyuv_transform)(char*, char*,transform_in_t*,unsigned int*,void*);
#endif
static void *rv_handle=NULL;
static int initialized=0;
static uint8_t *buffer = NULL;
static int bufsz = 0;
#ifdef USE_WIN32DLL
static int dll_type = 0; /* 0 = unix dlopen, 1 = win32 dll */
#endif
void *__builtin_vec_new(unsigned long size) {
return malloc(size);
}
void __builtin_vec_delete(void *mem) {
free(mem);
}
void __pure_virtual(void) {
printf("FATAL: __pure_virtual() called!\n");
// exit(1);
}
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
void ___brk_addr(void) {exit(0);}
char **__environ={NULL};
#undef stderr
FILE *stderr=NULL;
#endif
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
// switch(cmd){
// case VDCTRL_QUERY_MAX_PP_LEVEL:
// return 9;
// case VDCTRL_SET_PP_LEVEL:
// vfw_set_postproc(sh,10*(*((int*)arg)));
// return CONTROL_OK;
// }
return CONTROL_UNKNOWN;
}
/* exits program when failure */
#ifdef HAVE_LIBDL
static int load_syms_linux(char *path) {
void *handle;
mp_msg(MSGT_DECVIDEO,MSGL_V, "opening shared obj '%s'\n", path);
handle = dlopen (path, RTLD_LAZY);
if (!handle) {
mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error: %s\n",dlerror());
return 0;
}
rvyuv_custom_message = dlsym(handle, "RV20toYUV420CustomMessage");
rvyuv_free = dlsym(handle, "RV20toYUV420Free");
rvyuv_init = dlsym(handle, "RV20toYUV420Init");
rvyuv_transform = dlsym(handle, "RV20toYUV420Transform");
if(rvyuv_custom_message &&
rvyuv_free &&
rvyuv_init &&
rvyuv_transform)
{
rv_handle = handle;
return 1;
}
rvyuv_custom_message = dlsym(handle, "RV40toYUV420CustomMessage");
rvyuv_free = dlsym(handle, "RV40toYUV420Free");
rvyuv_init = dlsym(handle, "RV40toYUV420Init");
rvyuv_transform = dlsym(handle, "RV40toYUV420Transform");
if(rvyuv_custom_message &&
rvyuv_free &&
rvyuv_init &&
rvyuv_transform)
{
rv_handle = handle;
return 1;
}
mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error resolving symbols! (version incompatibility?)\n");
dlclose(handle);
return 0;
}
#endif
#ifdef USE_WIN32DLL
#ifdef WIN32_LOADER
#include "loader/ldt_keeper.h"
#endif
void* WINAPI LoadLibraryA(char* name);
void* WINAPI GetProcAddress(void* handle,char* func);
int WINAPI FreeLibrary(void *handle);
#ifndef WIN32_LOADER
void * WINAPI GetModuleHandleA(char *);
static int patch_dll(uint8_t *patchpos, const uint8_t *oldcode,
const uint8_t *newcode, int codesize) {
void *handle = GetModuleHandleA("kernel32");
int WINAPI (*VirtProt)(void *, unsigned, int, int *);
int res = 0;
int prot, tmp;
VirtProt = GetProcAddress(handle, "VirtualProtect");
// change permissions to PAGE_WRITECOPY
if (!VirtProt ||
!VirtProt(patchpos, codesize, 0x08, &prot)) {
mp_msg(MSGT_DECVIDEO, MSGL_WARN, "VirtualProtect failed at %p\n", patchpos);
return 0;
}
if (memcmp(patchpos, oldcode, codesize) == 0) {
memcpy(patchpos, newcode, codesize);
res = 1;
}
VirtProt(patchpos, codesize, prot, &tmp);
return res;
}
#endif
static int load_syms_windows(char *path) {
void *handle;
mp_msg(MSGT_DECVIDEO,MSGL_V, "opening win32 dll '%s'\n", path);
#ifdef WIN32_LOADER
Setup_LDT_Keeper();
#endif
handle = LoadLibraryA(path);
mp_msg(MSGT_DECVIDEO,MSGL_V,"win32 real codec handle=%p \n",handle);
if (!handle) {
mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error loading dll\n");
return 0;
}
wrvyuv_custom_message = GetProcAddress(handle, "RV20toYUV420CustomMessage");
wrvyuv_free = GetProcAddress(handle, "RV20toYUV420Free");
wrvyuv_init = GetProcAddress(handle, "RV20toYUV420Init");
wrvyuv_transform = GetProcAddress(handle, "RV20toYUV420Transform");
if(wrvyuv_custom_message &&
wrvyuv_free &&
wrvyuv_init &&
wrvyuv_transform)
{
dll_type = 1;
rv_handle = handle;
#ifndef WIN32_LOADER
{
if (strstr(path, "drv43260.dll")) {
int patched;
// patch away multithreaded decoding, it causes crashes
static const uint8_t oldcode[13] = {
0x83, 0xbb, 0xf8, 0x05, 0x00, 0x00, 0x01,
0x0f, 0x86, 0xd0, 0x00, 0x00, 0x00 };
static const uint8_t newcode[13] = {
0x31, 0xc0,
0x89, 0x83, 0xf8, 0x05, 0x00, 0x00,
0xe9, 0xd0, 0x00, 0x00, 0x00 };
patched = patch_dll(
(char*)wrvyuv_transform + 0x634132fa - 0x634114d0,
oldcode, newcode, sizeof(oldcode));
if (!patched)
mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Could not patch Real codec, this might crash on multi-CPU systems\n");
}
}
#endif
return 1;
}
wrvyuv_custom_message = GetProcAddress(handle, "RV40toYUV420CustomMessage");
wrvyuv_free = GetProcAddress(handle, "RV40toYUV420Free");
wrvyuv_init = GetProcAddress(handle, "RV40toYUV420Init");
wrvyuv_transform = GetProcAddress(handle, "RV40toYUV420Transform");
if(wrvyuv_custom_message &&
wrvyuv_free &&
wrvyuv_init &&
wrvyuv_transform) {
dll_type = 1;
rv_handle = handle;
return 1;
}
mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error resolving symbols! (version incompatibility?)\n");
FreeLibrary(handle);
return 0; // error
}
#endif
/* we need exact positions */
struct rv_init_t {
short unk1;
short w;
short h;
short unk3;
int unk2;
int subformat;
int unk5;
int format;
} rv_init_t;
// init driver
static int init(sh_video_t *sh){
//unsigned int out_fmt;
char *path;
int result;
// we export codec id and sub-id from demuxer in bitmapinfohdr:
unsigned char* extrahdr=(unsigned char*)(sh->bih+1);
unsigned int extrahdr_size = sh->bih->biSize - sizeof(BITMAPINFOHEADER);
struct rv_init_t init_data;
if(extrahdr_size < 8) {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"realvideo: extradata too small (%u)\n", sh->bih->biSize - sizeof(BITMAPINFOHEADER));
return 0;
}
init_data = (struct rv_init_t){11, sh->disp_w, sh->disp_h, 0, 0, be2me_32(((unsigned int*)extrahdr)[0]), 1, be2me_32(((unsigned int*)extrahdr)[1])}; // rv30
mp_msg(MSGT_DECVIDEO,MSGL_V,"realvideo codec id: 0x%08X sub-id: 0x%08X\n",be2me_32(((unsigned int*)extrahdr)[1]),be2me_32(((unsigned int*)extrahdr)[0]));
path = malloc(strlen(REALCODEC_PATH)+strlen(sh->codec->dll)+2);
if (!path) return 0;
sprintf(path, REALCODEC_PATH "/%s", sh->codec->dll);
/* first try to load linux dlls, if failed and we're supporting win32 dlls,
then try to load the windows ones */
#ifdef HAVE_LIBDL
if(strstr(sh->codec->dll,".dll") || !load_syms_linux(path))
#endif
#ifdef USE_WIN32DLL
if (!load_syms_windows(sh->codec->dll))
#endif
{
mp_msg(MSGT_DECVIDEO,MSGL_ERR,MSGTR_MissingDLLcodec,sh->codec->dll);
mp_msg(MSGT_DECVIDEO,MSGL_HINT,"Read the RealVideo section of the DOCS!\n");
free(path);
return 0;
}
free(path);
// only I420 supported
// if((sh->format!=0x30335652) && !mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_I420)) return 0;
// init codec:
sh->context=NULL;
#ifdef USE_WIN32DLL
if (dll_type == 1)
result=(*wrvyuv_init)(&init_data, &sh->context);
else
#endif
result=(*rvyuv_init)(&init_data, &sh->context);
if (result){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Couldn't open RealVideo codec, error code: 0x%X \n",result);
return 0;
}
// setup rv30 codec (codec sub-type and image dimensions):
if((sh->format<=0x30335652) && (be2me_32(((unsigned int*)extrahdr)[1])>=0x20200002)){
int i, cmsg_cnt;
uint32_t cmsg24[16]={sh->disp_w,sh->disp_h};
cmsg_data_t cmsg_data={0x24,1+(extrahdr[1]&7), &cmsg24[0]};
mp_msg(MSGT_DECVIDEO,MSGL_V,"realvideo: using cmsg24 with %u elements.\n",extrahdr[1]&7);
cmsg_cnt = (extrahdr[1]&7)*2;
if (extrahdr_size-8 < cmsg_cnt) {
mp_msg(MSGT_DECVIDEO,MSGL_WARN,"realvideo: not enough extradata (%u) to make %u cmsg24 elements.\n",extrahdr_size-8,extrahdr[1]&7);
cmsg_cnt = extrahdr_size-8;
}
for (i = 0; i < cmsg_cnt; i++)
cmsg24[2+i] = extrahdr[8+i]*4;
if (extrahdr_size-8 > cmsg_cnt)
mp_msg(MSGT_DECVIDEO,MSGL_WARN,"realvideo: %u bytes of unknown extradata remaining.\n",extrahdr_size-8-cmsg_cnt);
#ifdef USE_WIN32DLL
if (dll_type == 1)
(*wrvyuv_custom_message)(&cmsg_data,sh->context);
else
#endif
(*rvyuv_custom_message)(&cmsg_data,sh->context);
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: RealVideo codec init OK!\n");
return 1;
}
// uninit driver
static void uninit(sh_video_t *sh){
#ifdef USE_WIN32DLL
if (dll_type == 1)
{
if (wrvyuv_free) wrvyuv_free(sh->context);
} else
#endif
if(rvyuv_free) rvyuv_free(sh->context);
#ifdef USE_WIN32DLL
if (dll_type == 1)
{
if (rv_handle) FreeLibrary(rv_handle);
} else
#endif
#ifdef HAVE_LIBDL
if(rv_handle) dlclose(rv_handle);
#endif
rv_handle=NULL;
initialized = 0;
if (buffer)
free(buffer);
buffer = NULL;
bufsz = 0;
}
// copypaste from demux_real.c - it should match to get it working!
typedef struct dp_hdr_s {
uint32_t chunks; // number of chunks
uint32_t timestamp; // timestamp from packet header
uint32_t len; // length of actual data
uint32_t chunktab; // offset to chunk offset array
} dp_hdr_t;
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
mp_image_t* mpi;
unsigned long result;
dp_hdr_t* dp_hdr=(dp_hdr_t*)data;
unsigned char* dp_data=((unsigned char*)data)+sizeof(dp_hdr_t);
uint32_t* extra=(uint32_t*)(((char*)data)+dp_hdr->chunktab);
unsigned int transform_out[5];
transform_in_t transform_in={
dp_hdr->len, // length of the packet (sub-packets appended)
0, // unknown, seems to be unused
dp_hdr->chunks, // number of sub-packets - 1
extra, // table of sub-packet offsets
0, // unknown, seems to be unused
0, // timestamp (should be unneded)
};
if(len<=0 || flags&2) return NULL; // skipped frame || hardframedrop
if (bufsz < sh->disp_w*sh->disp_h*3/2) {
if (buffer) free(buffer);
bufsz = sh->disp_w*sh->disp_h*3/2;
buffer=malloc(bufsz);
if (!buffer) return 0;
}
#ifdef USE_WIN32DLL
if (dll_type == 1)
result=(*wrvyuv_transform)(dp_data, buffer, &transform_in,
transform_out, sh->context);
else
#endif
result=(*rvyuv_transform)(dp_data, buffer, &transform_in,
transform_out, sh->context);
if(!initialized){ // rv30 width/height now known
sh->aspect=(float)sh->disp_w/(float)sh->disp_h;
sh->disp_w=transform_out[3];
sh->disp_h=transform_out[4];
if (!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_I420)) return 0;
initialized=1;
}
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, 0 /*MP_IMGFLAG_ACCEPT_STRIDE*/,
sh->disp_w, sh->disp_h);
if(!mpi) return NULL;
mpi->planes[0] = buffer;
mpi->stride[0] = sh->disp_w;
mpi->planes[1] = buffer + sh->disp_w*sh->disp_h;
mpi->stride[1] = sh->disp_w / 2;
mpi->planes[2] = buffer + sh->disp_w*sh->disp_h*5/4;
mpi->stride[2] = sh->disp_w / 2;
if(transform_out[0] &&
(sh->disp_w != transform_out[3] || sh->disp_h != transform_out[4]))
initialized = 0;
return (result?NULL:mpi);
}
Reference in New Issue View Git Blame Copy Permalink