mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 16:33:02 +00:00
6e9cbdc104
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29305 b3059339-0415-0410-9bf9-f77b7e298cf2
299 lines
6.6 KiB
C
299 lines
6.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include "loader/wine/mmreg.h"
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#include "loader/wine/vfw.h"
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#include "stream/stream.h"
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#include "libmpdemux/muxer.h"
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#include "libmpdemux/demuxer.h"
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/* linking hacks */
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char *info_name;
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char *info_artist;
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char *info_genre;
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char *info_subject;
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char *info_copyright;
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char *info_sourceform;
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char *info_comment;
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char* out_filename = NULL;
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char* force_fourcc=NULL;
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char* passtmpfile="divx2pass.log";
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static const short h263_format[8][2] = {
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{ 0, 0 },
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{ 128, 96 },
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{ 176, 144 },
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{ 352, 288 },
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{ 704, 576 },
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{ 1408, 1152 },
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{ 320, 240 }
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};
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unsigned char* buffer;
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int bufptr=0;
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int bitcnt=0;
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unsigned char buf=0;
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static unsigned int x_get_bits(int n){
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unsigned int x=0;
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while(n-->0){
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if(!bitcnt){
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// fill buff
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buf=buffer[bufptr++];
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bitcnt=8;
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}
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//x=(x<<1)|(buf&1);buf>>=1;
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x=(x<<1)|(buf>>7);buf<<=1;
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--bitcnt;
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}
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return x;
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}
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#define get_bits(xxx,n) x_get_bits(n)
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#define get_bits1(xxx) x_get_bits(1)
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#define skip_bits(xxx,n) x_get_bits(n)
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#define skip_bits1(xxx) x_get_bits(1)
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int format;
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int width=320;
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int height=240;
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/* most is hardcoded. should extend to handle all h263 streams */
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static int h263_decode_picture_header(unsigned char *b_ptr)
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{
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int i;
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for(i=0;i<16;i++) printf(" %02X",b_ptr[i]); printf("\n");
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buffer=b_ptr;
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bufptr=bitcnt=buf=0;
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/* picture header */
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if (get_bits(&s->gb, 22) != 0x20){
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printf("bad picture header\n");
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return -1;
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}
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skip_bits(&s->gb, 8); /* picture timestamp */
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if (get_bits1(&s->gb) != 1){
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printf("bad marker\n");
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return -1; /* marker */
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}
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if (get_bits1(&s->gb) != 0){
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printf("bad h263 id\n");
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return -1; /* h263 id */
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}
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skip_bits1(&s->gb); /* split screen off */
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skip_bits1(&s->gb); /* camera off */
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skip_bits1(&s->gb); /* freeze picture release off */
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format = get_bits(&s->gb, 3);
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if (format != 7) {
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printf("h263_plus = 0 format = %d\n",format);
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/* H.263v1 */
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width = h263_format[format][0];
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height = h263_format[format][1];
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printf("%d x %d\n",width,height);
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// if (!width) return -1;
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printf("pict_type=%d\n",get_bits1(&s->gb));
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printf("unrestricted_mv=%d\n",get_bits1(&s->gb));
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#if 1
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printf("SAC: %d\n",get_bits1(&s->gb));
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printf("advanced prediction mode: %d\n",get_bits1(&s->gb));
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printf("PB frame: %d\n",get_bits1(&s->gb));
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#else
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if (get_bits1(&s->gb) != 0)
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return -1; /* SAC: off */
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if (get_bits1(&s->gb) != 0)
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return -1; /* advanced prediction mode: off */
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if (get_bits1(&s->gb) != 0)
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return -1; /* not PB frame */
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#endif
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printf("qscale=%d\n",get_bits(&s->gb, 5));
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skip_bits1(&s->gb); /* Continuous Presence Multipoint mode: off */
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} else {
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printf("h263_plus = 1\n");
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/* H.263v2 */
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if (get_bits(&s->gb, 3) != 1){
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printf("H.263v2 A error\n");
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return -1;
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}
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if (get_bits(&s->gb, 3) != 6){ /* custom source format */
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printf("custom source format\n");
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return -1;
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}
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skip_bits(&s->gb, 12);
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skip_bits(&s->gb, 3);
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printf("pict_type=%d\n",get_bits(&s->gb, 3) + 1);
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// if (s->pict_type != I_TYPE &&
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// s->pict_type != P_TYPE)
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// return -1;
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skip_bits(&s->gb, 7);
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skip_bits(&s->gb, 4); /* aspect ratio */
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width = (get_bits(&s->gb, 9) + 1) * 4;
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skip_bits1(&s->gb);
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height = get_bits(&s->gb, 9) * 4;
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printf("%d x %d\n",width,height);
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//if (height == 0)
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// return -1;
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printf("qscale=%d\n",get_bits(&s->gb, 5));
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}
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/* PEI */
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while (get_bits1(&s->gb) != 0) {
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skip_bits(&s->gb, 8);
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}
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// s->f_code = 1;
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// s->width = width;
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// s->height = height;
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return 0;
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}
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int postable[32768];
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int main(int argc,char ** argv){
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int c;
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FILE *f;
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FILE *f2;
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muxer_t* avi;
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muxer_stream_t* mux;
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//unsigned char* buffer=malloc(0x200000);
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int i,len;
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int v_id=0;
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int flag2=0;
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int prefix=0;
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// check if enough args were given
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if ( argc < 3 ){
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printf("Too few arguments given!\n"
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"Usage: %s <input_file> <output_file>\n", argv[0]);
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return -1;
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}
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// input
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if(!(f=fopen(argv[1],"rb"))){
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printf("Couldn't open input file.\n");
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return -1;
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}
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// output
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if(!(f2=fopen(argv[2],"wb"))){
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printf("Couldn't open output file.\n");
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return -1;
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}
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avi=muxer_new_muxer(MUXER_TYPE_AVI,f2);
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mux=muxer_new_stream(avi,MUXER_TYPE_VIDEO);
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mux->buffer_size=0x200000;
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mux->buffer=malloc(mux->buffer_size);
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mux->h.dwScale=1;
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mux->h.dwRate=10;
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mux->bih=malloc(sizeof(BITMAPINFOHEADER));
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mux->bih->biSize=sizeof(BITMAPINFOHEADER);
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mux->bih->biPlanes=1;
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mux->bih->biBitCount=24;
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mux->bih->biCompression=0x6f766976;// 7669766f;
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muxer_write_header(avi);
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/*
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c=fgetc(f); if(c) printf("error! not vivo file?\n");
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len=0;
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while((c=fgetc(f))>=0x80) len+=0x80*(c&0x0F);
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len+=c;
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printf("hdr1: %d\n",len);
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for(i=0;i<len;i++) fgetc(f);
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*/
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while((c=fgetc(f))>=0){
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printf("%08lX %02X\n",ftell(f),c);
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prefix=0;
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if(c==0x82){
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prefix=1;
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//continue;
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c=fgetc(f);
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printf("%08lX %02X\n",ftell(f),c);
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}
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if(c==0x00){
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// header
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int len=0;
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while((c=fgetc(f))>=0x80) len+=0x80*(c&0x0F);
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len+=c;
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printf("header: 00 (%d)\n",len);
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for(i=0;i<len;i++) fgetc(f);
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continue;
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}
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if((c&0xF0)==0x40){
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// audio
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len=24;
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if(prefix) len=fgetc(f);
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printf("audio: %02X (%d)\n",c,len);
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for(i=0;i<len;i++) fgetc(f);
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continue;
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}
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if((c&0xF0)==0x30){
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// audio
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len=40;
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if(prefix) len=fgetc(f);
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printf("audio: %02X (%d)\n",c,len);
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for(i=0;i<len;i++) fgetc(f);
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continue;
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}
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if(flag2 || (((c&0xF0)==0x10 || (c&0xF0)==0x20) && (c&0x0F)!=(v_id&0xF))){
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// end of frame:
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printf("Frame size: %d\n",mux->buffer_len);
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h263_decode_picture_header(mux->buffer);
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muxer_write_chunk(mux,mux->buffer_len,0x10, MP_NOPTS_VALUE, MP_NOPTS_VALUE);
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mux->buffer_len=0;
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if((v_id&0xF0)==0x10) fprintf(stderr,"hmm. last video packet %02X\n",v_id);
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}
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flag2=0;
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if((c&0xF0)==0x10){
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// 128 byte
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len=128;
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if(prefix) len=fgetc(f);
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printf("video: %02X (%d)\n",c,len);
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fread(mux->buffer+mux->buffer_len,len,1,f);
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mux->buffer_len+=len;
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v_id=c;
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continue;
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}
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if((c&0xF0)==0x20){
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int len=fgetc(f);
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printf("video: %02X (%d)\n",c,len);
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fread(mux->buffer+mux->buffer_len,len,1,f);
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mux->buffer_len+=len;
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flag2=1;
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v_id=c;
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continue;
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}
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printf("error: %02X!\n",c);
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exit(1);
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}
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if(!width) width=320;
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if(!height) height=240;
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mux->bih->biWidth=width;
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mux->bih->biHeight=height;
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mux->bih->biSizeImage=3*width*height;
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muxer_write_index(avi);
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fseek(f2,0,SEEK_SET);
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muxer_write_header(avi);
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return 0;
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}
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