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mpv/dec_video.c

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "config.h"
#include "mp_msg.h"
extern int verbose; // defined in mplayer.c
extern int divx_quality;
extern double video_time_usage;
extern double vout_time_usage;
extern int frameratecode2framerate[16];
#include "linux/timer.h"
#include "linux/shmem.h"
#include "stream.h"
#include "demuxer.h"
#include "parse_es.h"
#include "wine/mmreg.h"
#include "wine/avifmt.h"
#include "wine/vfw.h"
#include "codec-cfg.h"
#include "stheader.h"
//#include <inttypes.h>
//#include "libvo/img_format.h"
#ifdef USE_LIBVO2
#include "libvo2/libvo2.h"
#else
#include "libvo/video_out.h"
#endif
#include "libmpeg2/mpeg2.h"
#include "libmpeg2/mpeg2_internal.h"
extern picture_t *picture; // exported from libmpeg2/decode.c
extern int init_video_codec(sh_video_t *sh_video,int ex);
#ifdef USE_DIRECTSHOW
#include "loader/DirectShow/DS_VideoDec.h"
#endif
#ifdef USE_LIBAVCODEC
#include "libavcodec/avcodec.h"
static AVCodec *lavc_codec=NULL;
static AVCodecContext lavc_context;
static AVPicture lavc_picture;
int avcodec_inited=0;
#endif
#ifndef NEW_DECORE
#include "opendivx/decore.h"
#else
#include <decore.h>
#endif
void AVI_Decode_RLE8(char *image,char *delta,int tdsize,
unsigned int *map,int imagex,int imagey,unsigned char x11_bytes_pixel);
//**************************************************************************//
// The OpenDivX stuff:
//**************************************************************************//
#ifndef NEW_DECORE
static unsigned char *opendivx_src[3];
static int opendivx_stride[3];
// callback, the opendivx decoder calls this for each frame:
void convert_linux(unsigned char *puc_y, int stride_y,
unsigned char *puc_u, unsigned char *puc_v, int stride_uv,
unsigned char *bmp, int width_y, int height_y){
// printf("convert_yuv called %dx%d stride: %d,%d\n",width_y,height_y,stride_y,stride_uv);
opendivx_src[0]=puc_y;
opendivx_src[1]=puc_u;
opendivx_src[2]=puc_v;
opendivx_stride[0]=stride_y;
opendivx_stride[1]=stride_uv;
opendivx_stride[2]=stride_uv;
}
#endif
int get_video_quality_max(sh_video_t *sh_video){
switch(sh_video->codec->driver){
#ifdef USE_DIRECTSHOW
case VFM_DSHOW:
return 4;
#endif
#ifdef MPEG12_POSTPROC
case VFM_MPEG:
#endif
case VFM_DIVX4:
case VFM_ODIVX:
return 6;
}
return 0;
}
void set_video_quality(sh_video_t *sh_video,int quality){
switch(sh_video->codec->driver){
#ifdef USE_DIRECTSHOW
case VFM_DSHOW: {
if(quality<0 || quality>4) quality=4;
DS_SetValue_DivX("Quality",quality);
}
break;
#endif
#ifdef MPEG12_POSTPROC
case VFM_MPEG: {
if(quality<0 || quality>6) quality=6;
picture->pp_options=(1<<quality)-1;
}
break;
#endif
case VFM_DIVX4:
case VFM_ODIVX: {
DEC_SET dec_set;
if(quality<0 || quality>6) quality=6;
dec_set.postproc_level=(1<<quality)-1;
decore(0x123,DEC_OPT_SETPP,&dec_set,NULL);
}
break;
}
}
int set_video_colors(sh_video_t *sh_video,char *item,int value){
#ifdef USE_DIRECTSHOW
if(!strcmp(sh_video->codec->name,"divxds")){
DS_SetValue_DivX(item,value);
return 1;
}
#endif
return 0;
}
int uninit_video(sh_video_t *sh_video){
if(!sh_video->inited) return;
printf("uninit video: %d \n",sh_video->codec->driver);
switch(sh_video->codec->driver){
#ifdef USE_LIBAVCODEC
case VFM_FFMPEG:
if (avcodec_close(&lavc_context) < 0)
mp_msg(MSGT_DECVIDEO,MSGL_ERR, "could not close codec\n");
break;
#endif
#ifdef USE_DIRECTSHOW
case VFM_DSHOW: // Win32/DirectShow
DS_VideoDecoder_Close();
break;
#endif
case VFM_MPEG:
mpeg2_free_image_buffers (picture);
break;
}
if(sh_video->our_out_buffer){
free(sh_video->our_out_buffer);
sh_video->our_out_buffer=NULL;
}
sh_video->inited=0;
}
int init_video(sh_video_t *sh_video){
unsigned int out_fmt=sh_video->codec->outfmt[sh_video->outfmtidx];
sh_video->our_out_buffer=NULL;
switch(sh_video->codec->driver){
#ifdef USE_WIN32DLL
case VFM_VFW: {
if(!init_video_codec(sh_video,0)) {
// GUI_MSG( mplUnknowError )
return 0;
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: Win32 video codec init OK!\n");
break;
}
case VFM_VFWEX: {
if(!init_video_codec(sh_video,1)) {
// GUI_MSG( mplUnknowError )
return 0;
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: Win32Ex video codec init OK!\n");
break;
}
case VFM_DSHOW: { // Win32/DirectShow
#ifndef USE_DIRECTSHOW
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"MPlayer was compiled WITHOUT directshow support!\n");
return 0;
// GUI_MSG( mplCompileWithoutDSSupport )
#else
int bpp;
if(DS_VideoDecoder_Open(sh_video->codec->dll,&sh_video->codec->guid, sh_video->bih, 0, &sh_video->our_out_buffer)){
// if(DS_VideoDecoder_Open(sh_video->codec->dll,&sh_video->codec->guid, sh_video->bih, 0, NULL)){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"ERROR: Couldn't open required DirectShow codec: %s\n",sh_video->codec->dll);
mp_msg(MSGT_DECVIDEO,MSGL_HINT,"Maybe you forget to upgrade your win32 codecs?? It's time to download the new\n");
mp_msg(MSGT_DECVIDEO,MSGL_HINT,"package from: ftp://mplayerhq.hu/MPlayer/releases/w32codec.zip !\n");
// mp_msg(MSGT_DECVIDEO,MSGL_HINT,"Or you should disable DShow support: make distclean;make -f Makefile.No-DS\n");
return 0;
// #ifdef HAVE_GUI
// if ( !nogui )
// {
// strcpy( mplShMem->items.videodata.codecdll,sh_video->codec->dll );
// mplSendMessage( mplDSCodecNotFound );
// usec_sleep( 10000 );
// }
// #endif
}
switch(out_fmt){
case IMGFMT_YUY2:
case IMGFMT_UYVY:
bpp=16;
DS_VideoDecoder_SetDestFmt(16,out_fmt);break; // packed YUV
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
bpp=12;
DS_VideoDecoder_SetDestFmt(12,out_fmt);break; // planar YUV
default:
bpp=((out_fmt&255)+7)&(~7);
DS_VideoDecoder_SetDestFmt(out_fmt&255,0); // RGB/BGR
}
sh_video->our_out_buffer = memalign(64,sh_video->disp_w*sh_video->disp_h*bpp/8); // FIXME!!!
DS_VideoDecoder_Start();
DS_SetAttr_DivX("Quality",divx_quality);
// printf("DivX setting result = %d\n", DS_SetAttr_DivX("Quality",divx_quality) );
// printf("DivX setting result = %d\n", DS_SetValue_DivX("Brightness",60) );
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: Win32/DShow video codec init OK!\n");
break;
#endif
}
#else /* !USE_WIN32DLL */
case VFM_VFW:
case VFM_DSHOW:
case VFM_VFWEX:
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Support for win32 codecs disabled, or unavailable on non-x86 platforms!\n");
return 0;
#endif /* !USE_WIN32DLL */
case VFM_ODIVX: { // OpenDivX
mp_msg(MSGT_DECVIDEO,MSGL_V,"OpenDivX video codec\n");
{ DEC_PARAM dec_param;
DEC_SET dec_set;
memset(&dec_param,0,sizeof(dec_param));
#ifdef NEW_DECORE
dec_param.output_format=DEC_USER;
#else
dec_param.color_depth = 32;
#endif
dec_param.x_dim = sh_video->bih->biWidth;
dec_param.y_dim = sh_video->bih->biHeight;
decore(0x123, DEC_OPT_INIT, &dec_param, NULL);
dec_set.postproc_level = divx_quality;
decore(0x123, DEC_OPT_SETPP, &dec_set, NULL);
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: OpenDivX video codec init OK!\n");
break;
}
case VFM_DIVX4: { // DivX4Linux
#ifndef NEW_DECORE
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"MPlayer was compiled WITHOUT DivX4Linux (libdivxdecore.so) support!\n");
return 0;
#else
mp_msg(MSGT_DECVIDEO,MSGL_V,"DivX4Linux video codec\n");
{ DEC_PARAM dec_param;
DEC_SET dec_set;
int bits=16;
memset(&dec_param,0,sizeof(dec_param));
switch(out_fmt){
case IMGFMT_YV12: dec_param.output_format=DEC_YV12;bits=12;break;
case IMGFMT_YUY2: dec_param.output_format=DEC_YUY2;break;
case IMGFMT_UYVY: dec_param.output_format=DEC_UYVY;break;
case IMGFMT_I420: dec_param.output_format=DEC_420;bits=12;break;
case IMGFMT_BGR15: dec_param.output_format=DEC_RGB555_INV;break;
case IMGFMT_BGR16: dec_param.output_format=DEC_RGB565_INV;break;
case IMGFMT_BGR24: dec_param.output_format=DEC_RGB24_INV;bits=24;break;
case IMGFMT_BGR32: dec_param.output_format=DEC_RGB32_INV;bits=32;break;
default:
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Unsupported out_fmt: 0x%X\n",out_fmt);
return 0;
}
dec_param.x_dim = sh_video->bih->biWidth;
dec_param.y_dim = sh_video->bih->biHeight;
decore(0x123, DEC_OPT_INIT, &dec_param, NULL);
dec_set.postproc_level = divx_quality;
decore(0x123, DEC_OPT_SETPP, &dec_set, NULL);
sh_video->our_out_buffer = memalign(64,((bits*dec_param.x_dim+7)/8)*dec_param.y_dim);
// sh_video->our_out_buffer = shmem_alloc(dec_param.x_dim*dec_param.y_dim*5);
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: OpenDivX video codec init OK!\n");
break;
#endif
}
case VFM_FFMPEG: { // FFmpeg's libavcodec
#ifndef USE_LIBAVCODEC
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"MPlayer was compiled WITHOUT libavcodec support!\n");
return 0;
#else
mp_msg(MSGT_DECVIDEO,MSGL_V,"FFmpeg's libavcodec video codec\n");
if(!avcodec_inited){
avcodec_init();
avcodec_register_all();
avcodec_inited=1;
}
lavc_codec = (AVCodec *)avcodec_find_decoder_by_name(sh_video->codec->dll);
if(!lavc_codec){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Can't find codec '%s' in libavcodec...\n",sh_video->codec->dll);
return 0;
}
memset(&lavc_context, 0, sizeof(lavc_context));
// sh_video->disp_h/=2; // !!
lavc_context.width=sh_video->disp_w;
lavc_context.height=sh_video->disp_h;
mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"libavcodec.size: %d x %d\n",lavc_context.width,lavc_context.height);
/* open it */
if (avcodec_open(&lavc_context, lavc_codec) < 0) {
mp_msg(MSGT_DECVIDEO,MSGL_ERR, "could not open codec\n");
return 0;
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"INFO: libavcodec init OK!\n");
break;
#endif
}
case VFM_MPEG: {
// init libmpeg2:
#ifdef MPEG12_POSTPROC
picture->pp_options=divx_quality;
#else
if(divx_quality){
mp_msg(MSGT_DECVIDEO,MSGL_HINT,"WARNING! You requested image postprocessing for an MPEG 1/2 video,\n");
mp_msg(MSGT_DECVIDEO,MSGL_HINT," but compiled MPlayer without MPEG 1/2 postprocessing support!\n");
mp_msg(MSGT_DECVIDEO,MSGL_HINT," #define MPEG12_POSTPROC in config.h, and recompile libmpeg2!\n");
}
#endif
mpeg2_allocate_image_buffers (picture);
break;
}
case VFM_RAW: {
break;
}
case VFM_RLE: {
int bpp=((out_fmt&255)+7)/8; // RGB only
sh_video->our_out_buffer = memalign(64,sh_video->disp_w*sh_video->disp_h*bpp); // FIXME!!!
if(bpp==2){ // 15 or 16 bpp ==> palette conversion!
unsigned int* pal=(unsigned int*)(((char*)sh_video->bih)+40);
//int cols=(sh_video->bih->biSize-40)/4;
int cols=1<<(sh_video->bih->biBitCount);
int i;
if(cols>256) cols=256;
printf("RLE: converting palette for %d colors.\n",cols);
for(i=0;i<cols;i++){
unsigned int c=pal[i];
unsigned int b=c&255;
unsigned int g=(c>>8)&255;
unsigned int r=(c>>16)&255;
if((out_fmt&255)==15)
pal[i]=((r>>3)<<10)|((g>>3)<<5)|((b>>3));
else
pal[i]=((r>>3)<<11)|((g>>2)<<5)|((b>>3));
}
}
break;
}
}
sh_video->inited=1;
return 1;
}
#ifdef USE_LIBVO2
int decode_video(vo2_handle_t *video_out,sh_video_t *sh_video,unsigned char *start,int in_size,int drop_frame){
#else
int decode_video(vo_functions_t *video_out,sh_video_t *sh_video,unsigned char *start,int in_size,int drop_frame){
#endif
unsigned int out_fmt=sh_video->codec->outfmt[sh_video->outfmtidx];
int planar=(out_fmt==IMGFMT_YV12||out_fmt==IMGFMT_IYUV||out_fmt==IMGFMT_I420);
int blit_frame=0;
uint8_t* planes_[3];
uint8_t** planes=planes_;
int stride_[3];
int* stride=stride_;
unsigned int t=GetTimer();
unsigned int t2;
//-------------------- Decode a frame: -----------------------
switch(sh_video->codec->driver){
case VFM_ODIVX: {
// OpenDivX
DEC_FRAME dec_frame;
#ifdef NEW_DECORE
DEC_PICTURE dec_pic;
#endif
// let's decode
dec_frame.length = in_size;
dec_frame.bitstream = start;
dec_frame.render_flag = drop_frame?0:1;
#ifdef NEW_DECORE
dec_frame.bmp=&dec_pic;
dec_pic.y=dec_pic.u=dec_pic.v=NULL;
decore(0x123, (sh_video->format==mmioFOURCC('D','I','V','3'))?DEC_OPT_FRAME_311:DEC_OPT_FRAME, &dec_frame, NULL);
#else
opendivx_src[0]=NULL;
decore(0x123, 0, &dec_frame, NULL);
#endif
if(!drop_frame)
// let's display
#ifdef NEW_DECORE
if(dec_pic.y){
planes[0]=dec_pic.y;
planes[1]=dec_pic.u;
planes[2]=dec_pic.v;
stride[0]=dec_pic.stride_y;
stride[1]=stride[2]=dec_pic.stride_uv;
blit_frame=2;
}
#else
if(opendivx_src[0]){
planes=opendivx_src; stride=opendivx_stride;
blit_frame=2;
}
#endif
break;
}
#ifdef NEW_DECORE
case VFM_DIVX4: {
// DivX4Linux
DEC_FRAME dec_frame;
// let's decode
dec_frame.length = in_size;
dec_frame.bitstream = start;
dec_frame.render_flag = drop_frame?0:1;
dec_frame.bmp=sh_video->our_out_buffer;
dec_frame.stride=sh_video->disp_w;
// printf("Decoding DivX4 frame\n");
decore(0x123, (sh_video->format==mmioFOURCC('D','I','V','3'))?DEC_OPT_FRAME_311:DEC_OPT_FRAME, &dec_frame, NULL);
if(!drop_frame) blit_frame=3;
break;
}
#endif
#ifdef USE_DIRECTSHOW
case VFM_DSHOW: { // W32/DirectShow
if(drop_frame<2) DS_VideoDecoder_DecodeFrame(start, in_size, 0, !drop_frame);
if(!drop_frame && sh_video->our_out_buffer) blit_frame=3;
break;
}
#endif
#ifdef USE_LIBAVCODEC
case VFM_FFMPEG: { // libavcodec
int got_picture=0;
mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"Calling ffmpeg...\n");
if(drop_frame<2 && in_size>0){
int ret = avcodec_decode_video(&lavc_context, &lavc_picture,
&got_picture, start, in_size);
if(verbose>1){
unsigned char *x="???";
switch(lavc_context.pix_fmt){
case PIX_FMT_YUV420P: x="YUV420P";break;
case PIX_FMT_YUV422: x="YUV422";break;
case PIX_FMT_RGB24: x="RGB24";break;
case PIX_FMT_BGR24: x="BGR24";break;
#ifdef PIX_FMT_YUV422P
case PIX_FMT_YUV422P: x="YUV422P";break;
case PIX_FMT_YUV444P: x="YUV444P";break;
#endif
}
mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"DONE -> got_picture=%d format=0x%X (%s) \n",got_picture,
lavc_context.pix_fmt,x);
}
if(ret<0) mp_msg(MSGT_DECVIDEO,MSGL_WARN, "Error while decoding frame!\n");
if(!drop_frame && got_picture){
// if(!drop_frame){
if(planar){
planes=lavc_picture.data;
stride=lavc_picture.linesize;
//stride[1]=stride[2]=0;
//stride[0]/=2;
blit_frame=2;
} else {
int y;
// temporary hack - FIXME
if(!sh_video->our_out_buffer)
sh_video->our_out_buffer = memalign(64,sh_video->disp_w*sh_video->disp_h*2);
for(y=0;y<sh_video->disp_h;y++){
unsigned char *s0=lavc_picture.data[0]+lavc_picture.linesize[0]*y;
unsigned char *s1=lavc_picture.data[1]+lavc_picture.linesize[1]*y;
unsigned char *s2=lavc_picture.data[2]+lavc_picture.linesize[2]*y;
unsigned char *d=sh_video->our_out_buffer+y*2*sh_video->disp_w;
int x;
for(x=0;x<sh_video->disp_w/2;x++){
d[4*x+0]=s0[2*x+0];
d[4*x+1]=s1[x];
d[4*x+2]=s0[2*x+1];
d[4*x+3]=s2[x];
}
}
blit_frame=3;
}
}
}
break;
}
#endif
#ifdef USE_WIN32DLL
case VFM_VFWEX:
case VFM_VFW:
{
HRESULT ret;
if(!in_size) break;
sh_video->bih->biSizeImage = in_size;
// sh_video->bih->biWidth = 1280;
// sh_video->o_bih.biWidth = 1280;
// ret = ICDecompress(avi_header.hic, ICDECOMPRESS_NOTKEYFRAME|(ICDECOMPRESS_HURRYUP|ICDECOMPRESS_PREROL),
if(sh_video->codec->driver==VFM_VFWEX)
ret = ICDecompressEx(sh_video->hic,
( (sh_video->ds->flags&1) ? 0 : ICDECOMPRESS_NOTKEYFRAME ) |
( (drop_frame==2 && !(sh_video->ds->flags&1))?(ICDECOMPRESS_HURRYUP|ICDECOMPRESS_PREROL):0 ) ,
sh_video->bih, start,
&sh_video->o_bih,
drop_frame ? 0 : sh_video->our_out_buffer);
else
ret = ICDecompress(sh_video->hic,
( (sh_video->ds->flags&1) ? 0 : ICDECOMPRESS_NOTKEYFRAME ) |
( (drop_frame==2 && !(sh_video->ds->flags&1))?(ICDECOMPRESS_HURRYUP|ICDECOMPRESS_PREROL):0 ) ,
sh_video->bih, start,
&sh_video->o_bih,
drop_frame ? 0 : sh_video->our_out_buffer);
if(ret){ mp_msg(MSGT_DECVIDEO,MSGL_WARN,"Error decompressing frame, err=%d\n",(int)ret);break; }
if(!drop_frame) blit_frame=3;
break;
}
#endif
case VFM_MPEG:
if(out_fmt==IMGFMT_MPEGPES){
// hardware decoding:
static vo_mpegpes_t packet;
mpeg2_decode_data(video_out, start, start+in_size,3); // parse headers
packet.data=start;
packet.size=in_size-4;
packet.timestamp=sh_video->timer*90000.0;
packet.id=0x1E0; //+sh_video->ds->id;
planes[0]=&packet;
blit_frame=2;
} else {
// software decoding:
mpeg2_decode_data(video_out, start, start+in_size,drop_frame); // decode
if(!drop_frame) blit_frame=1;
}
break;
case VFM_RAW:
planes[0]=start;
blit_frame=2;
break;
case VFM_RLE:
//void AVI_Decode_RLE8(char *image,char *delta,int tdsize,
// unsigned int *map,int imagex,int imagey,unsigned char x11_bytes_pixel);
AVI_Decode_RLE8(sh_video->our_out_buffer,start,in_size,
(int*)(((char*)sh_video->bih)+40),
sh_video->disp_w,sh_video->disp_h,((out_fmt&255)+7)/8);
blit_frame=3;
break;
} // switch
//------------------------ frame decoded. --------------------
#ifdef HAVE_MMX
// some codecs is broken, and doesn't restore MMX state :(
// it happens usually with broken/damaged files.
__asm __volatile ("emms;":::"memory");
#endif
t2=GetTimer();t=t2-t;video_time_usage+=t*0.000001f;
switch(blit_frame){
case 3:
if(planar){
stride[0]=sh_video->disp_w;
stride[1]=stride[2]=sh_video->disp_w/2;
planes[0]=sh_video->our_out_buffer;
planes[2]=planes[0]+sh_video->disp_w*sh_video->disp_h;
planes[1]=planes[2]+sh_video->disp_w*sh_video->disp_h/4;
} else
planes[0]=sh_video->our_out_buffer;
case 2:
#ifdef USE_LIBVO2
if(planar)
vo2_draw_slice(video_out,planes,stride,sh_video->disp_w,sh_video->disp_h,0,0);
else
vo2_draw_frame(video_out,planes[0],sh_video->disp_w,sh_video->disp_w,sh_video->disp_h);
#else
if(planar)
video_out->draw_slice(planes,stride,sh_video->disp_w,sh_video->disp_h,0,0);
else
video_out->draw_frame(planes);
#endif
t2=GetTimer()-t2;vout_time_usage+=t2*0.000001f;
blit_frame=1;
break;
}
return blit_frame;
}
int video_read_properties(sh_video_t *sh_video){
demux_stream_t *d_video=sh_video->ds;
// Determine image properties:
switch(d_video->demuxer->file_format){
case DEMUXER_TYPE_AVI:
case DEMUXER_TYPE_ASF: {
// display info:
sh_video->format=sh_video->bih->biCompression;
sh_video->disp_w=sh_video->bih->biWidth;
sh_video->disp_h=abs(sh_video->bih->biHeight);
break;
}
case DEMUXER_TYPE_MPEG_ES:
case DEMUXER_TYPE_MPEG_PS: {
// Find sequence_header first:
videobuf_len=0; videobuf_code_len=0;
mp_msg(MSGT_DECVIDEO,MSGL_V,"Searching for sequence header... ");fflush(stdout);
while(1){
int i=sync_video_packet(d_video);
if(i==0x1B3) break; // found it!
if(!i || !skip_video_packet(d_video)){
if(verbose) mp_msg(MSGT_DECVIDEO,MSGL_V,"NONE :(\n");
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"MPEG: FATAL: EOF while searching for sequence header\n");
return 0;
// GUI_MSG( mplMPEGErrorSeqHeaderSearch )
}
}
mp_msg(MSGT_DECVIDEO,MSGL_V,"OK!\n");
// sh_video=d_video->sh;sh_video->ds=d_video;
mpeg2_init();
// ========= Read & process sequence header & extension ============
if(!videobuffer) videobuffer=memalign(8,VIDEOBUFFER_SIZE);
if(!videobuffer){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"Cannot allocate shared memory\n");
return 0;
// GUI_MSG( mplErrorShMemAlloc )
}
if(!read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"FATAL: Cannot read sequence header!\n");
return 0;
// GUI_MSG( mplMPEGErrorCannotReadSeqHeader )
}
if(header_process_sequence_header (picture, &videobuffer[4])) {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"bad sequence header!\n");
return 0;
// GUI_MSG( mplMPEGErrorBadSeqHeader )
}
if(sync_video_packet(d_video)==0x1B5){ // next packet is seq. ext.
// videobuf_len=0;
int pos=videobuf_len;
if(!read_video_packet(d_video)){
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"FATAL: Cannot read sequence header extension!\n");
return 0;
// GUI_MSG( mplMPEGErrorCannotReadSeqHeaderExt )
}
if(header_process_extension (picture, &videobuffer[pos+4])) {
mp_msg(MSGT_DECVIDEO,MSGL_ERR,"bad sequence header extension!\n");
return 0;
// GUI_MSG( mplMPEGErrorBadSeqHeaderExt )
}
}
// display info:
sh_video->format=picture->mpeg1?0x10000001:0x10000002; // mpeg video
sh_video->fps=frameratecode2framerate[picture->frame_rate_code]*0.0001f;
if(!sh_video->fps){
// if(!force_fps){
// fprintf(stderr,"FPS not specified (or invalid) in the header! Use the -fps option!\n");
// return 0;
// }
sh_video->frametime=0;
} else {
sh_video->frametime=10000.0f/(float)frameratecode2framerate[picture->frame_rate_code];
}
sh_video->disp_w=picture->display_picture_width;
sh_video->disp_h=picture->display_picture_height;
// bitrate:
if(picture->bitrate!=0x3FFFF) // unspecified/VBR ?
sh_video->i_bps=1000*picture->bitrate/16;
// info:
mp_dbg(MSGT_DECVIDEO,MSGL_DBG2,"mpeg bitrate: %d (%X)\n",picture->bitrate,picture->bitrate);
mp_msg(MSGT_DECVIDEO,MSGL_INFO,"VIDEO: %s %dx%d (aspect %d) %4.2f fps %5.1f kbps (%4.1f kbyte/s)\n",
picture->mpeg1?"MPEG1":"MPEG2",
sh_video->disp_w,sh_video->disp_h,
picture->aspect_ratio_information,
sh_video->fps,
picture->bitrate*0.5f,
picture->bitrate/16.0f );
break;
}
} // switch(file_format)
return 1;
}
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