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mirror of https://github.com/mpv-player/mpv synced 2025-02-18 13:47:04 +00:00

Cinepak, CVID and RoqA/V are now in ffmpeg

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12830 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rtognimp 2004-07-15 20:45:44 +00:00
parent 54af37cddd
commit 576307d195
4 changed files with 0 additions and 318 deletions

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "config.h"
#include "ad_internal.h"
static ad_info_t info =
{
"Id RoQ File Audio Decoder",
"roqaudio",
"Nick Kurshev",
"Mike Melanson",
"" //"RoQA is an internal MPlayer FOURCC"
};
LIBAD_EXTERN(roqaudio)
// in native/roqav.c:
void *roq_decode_audio_init(void);
int roq_decode_audio(unsigned short *output, unsigned char *input,
int encoded_size, int channels, void *context);
static int preinit(sh_audio_t *sh_audio)
{
// minsize was stored in wf->nBlockAlign by the RoQ demuxer
sh_audio->audio_out_minsize=sh_audio->wf->nBlockAlign;
sh_audio->audio_in_minsize=sh_audio->audio_out_minsize / 2; // FIXME?
sh_audio->context = roq_decode_audio_init();
return 1;
}
static int init(sh_audio_t *sh_audio)
{
sh_audio->channels=sh_audio->wf->nChannels;
sh_audio->samplerate=sh_audio->wf->nSamplesPerSec;
sh_audio->i_bps = 44100;
return 1;
}
static void uninit(sh_audio_t *sh_audio)
{
}
static int control(sh_audio_t *sh,int cmd,void* arg, ...)
{
// TODO!!!
return CONTROL_UNKNOWN;
}
static int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen)
{
unsigned char header_data[6];
int read_len;
/* figure out how much data to read */
if (demux_read_data(sh_audio->ds, header_data, 6) != 6) return -1; /* EOF */
read_len = (header_data[5] << 24) | (header_data[4] << 16) |
(header_data[3] << 8) | header_data[2];
read_len += 2; /* 16-bit arguments */
if (demux_read_data(sh_audio->ds, sh_audio->a_in_buffer, read_len) !=
read_len) return -1;
return 2 * roq_decode_audio((unsigned short *)buf, sh_audio->a_in_buffer,
read_len, sh_audio->channels, sh_audio->context);
}

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#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info = {
"Cinepak Video decoder",
"cinepak",
"A'rpi",
"Dr. Tim Ferguson, http://www.csse.monash.edu.au/~timf/videocodec.html",
"native codec"
};
LIBVD_EXTERN(cinepak)
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
return CONTROL_UNKNOWN;
}
void *decode_cinepak_init(void);
// init driver
static int init(sh_video_t *sh){
sh->context = decode_cinepak_init();
return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YUY2);
}
// uninit driver
static void uninit(sh_video_t *sh){
}
//mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
//void decode_cinepak(void *context, unsigned char *buf, int size, unsigned char *frame, int width, int height, int bit_per_pixel, int stride_);
void decode_cinepak(void *context, unsigned char *buf, int size, mp_image_t* mpi);
// 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_STATIC, MP_IMGFLAG_PRESERVE | MP_IMGFLAG_ACCEPT_STRIDE,
(sh->disp_w+3)&(~3),
(sh->disp_h+3)&(~3));
if(!mpi){ // temporary!
printf("couldn't allocate image for cinepak codec\n");
return NULL;
}
#if 0
printf("mpi: %p/%d %p/%d %p/%d (%d) (%d) \n",
mpi->planes[0], mpi->stride[0],
mpi->planes[1], mpi->stride[1],
mpi->planes[2], mpi->stride[2],
mpi->planes[1]-mpi->planes[0],
mpi->planes[2]-mpi->planes[1]);
#endif
// decode_cinepak(sh->context, data, len, mpi->planes[0], sh->disp_w, sh->disp_h,
// (mpi->flags&MP_IMGFLAG_YUV)?16:(mpi->imgfmt&255), mpi->stride[0]);
decode_cinepak(sh->context, data, len, mpi);
return mpi;
}

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/* ------------------------------------------------------------------------
* Creative YUV Video Decoder
*
* Dr. Tim Ferguson, 2001.
* For more details on the algorithm:
* http://www.csse.monash.edu.au/~timf/videocodec.html
*
* Code restructured, and adopted to MPlayer's mpi by A'rpi, 2002.
*
* This is a very simple predictive coder. A video frame is coded in YUV411
* format. The first pixel of each scanline is coded using the upper four
* bits of its absolute value. Subsequent pixels for the scanline are coded
* using the difference between the last pixel and the current pixel (DPCM).
* The DPCM values are coded using a 16 entry table found at the start of the
* frame. Thus four bits per component are used and are as follows:
* UY VY YY UY VY YY UY VY...
* ------------------------------------------------------------------------ */
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info = {
"Creative YUV decoder",
"cyuv",
"A'rpi",
"Dr. Tim Ferguson",
"native codec"
};
LIBVD_EXTERN(cyuv)
// 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){
return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_411P);
}
// 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;
unsigned int xpos, ypos;
unsigned char *delta_y_tbl = ((unsigned char*)data)+16;
unsigned char *delta_c_tbl = ((unsigned char*)data)+32;
unsigned char *ptr = ((unsigned char*)data)+48;
if(len<=48) return NULL; // skipped/broken frame
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
sh->disp_w, sh->disp_h);
if(!mpi) return NULL;
for(ypos = 0; ypos < mpi->h; ypos++){
unsigned int i;
unsigned char cur_Y1,cur_Y2,cur_U,cur_V;
unsigned char *frame=mpi->planes[0]+mpi->stride[0]*ypos;
unsigned char *uframe=mpi->planes[1]+mpi->stride[1]*ypos;
unsigned char *vframe=mpi->planes[2]+mpi->stride[2]*ypos;
for(xpos = 0; xpos < mpi->w; xpos += 2){
if(xpos&2){
i = *(ptr++);
cur_Y1 = (cur_Y2 + delta_y_tbl[i & 0x0f])/* & 0xff*/;
cur_Y2 = (cur_Y1 + delta_y_tbl[i >> 4])/* & 0xff*/;
} else {
if(xpos == 0) { /* first pixels in scanline */
cur_U = *(ptr++);
cur_Y1= (cur_U & 0x0f) << 4;
cur_U = cur_U & 0xf0;
cur_V = *(ptr++);
cur_Y2= (cur_Y1 + delta_y_tbl[cur_V & 0x0f])/* & 0xff*/;
cur_V = cur_V & 0xf0;
} else { /* subsequent pixels in scanline */
i = *(ptr++);
cur_U = (cur_U + delta_c_tbl[i >> 4])/* & 0xff*/;
cur_Y1= (cur_Y2 + delta_y_tbl[i & 0x0f])/* & 0xff*/;
i = *(ptr++);
cur_V = (cur_V + delta_c_tbl[i >> 4])/* & 0xff*/;
cur_Y2= (cur_Y1 + delta_y_tbl[i & 0x0f])/* & 0xff*/;
}
}
// ok, store the pixels:
switch(mpi->imgfmt){
case IMGFMT_YUY2:
*frame++ = cur_Y1;
*frame++ = cur_U;
*frame++ = cur_Y2;
*frame++ = cur_V;
break;
case IMGFMT_UYVY:
*frame++ = cur_U;
*frame++ = cur_Y1;
*frame++ = cur_V;
*frame++ = cur_Y2;
break;
case IMGFMT_422P:
*uframe++ = cur_U;
*vframe++ = cur_V;
*frame++ = cur_Y1;
*frame++ = cur_Y2;
break;
case IMGFMT_411P:
if(!(xpos&2)){
*uframe++ = cur_U;
*vframe++ = cur_V;
}
*frame++ = cur_Y1;
*frame++ = cur_Y2;
break;
}
} // xpos
} // ypos
return mpi;
}

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#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info = {
"Id RoQ File Video decoder",
"roqvideo",
"A'rpi",
"Mike Melanson",
"native codec"
};
LIBVD_EXTERN(roqvideo)
// in native/roqav.c:
void *roq_decode_video_init(void);
void roq_decode_video(void *context, unsigned char *encoded,
int encoded_size, mp_image_t *mpi);
// 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){
sh->context = roq_decode_video_init();
return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YV12);
}
// uninit driver
static void uninit(sh_video_t *sh){
}
//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){
mp_image_t* mpi;
if(len<=0) return NULL; // skipped frame
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_IP, MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE,
sh->disp_w, sh->disp_h);
if(!mpi) return NULL;
roq_decode_video(sh->context, data, len, mpi);
return mpi;
}