diff options
Diffstat (limited to 'libmpdemux/asfheader.c')
-rw-r--r-- | libmpdemux/asfheader.c | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/libmpdemux/asfheader.c b/libmpdemux/asfheader.c new file mode 100644 index 0000000000..d8349c6499 --- /dev/null +++ b/libmpdemux/asfheader.c @@ -0,0 +1,279 @@ +// .asf fileformat docs from http://divx.euro.ru + + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +extern int verbose; // defined in mplayer.c + +#include "config.h" +#include "mp_msg.h" + +#include "stream.h" +#include "demuxer.h" + +#include "wine/mmreg.h" +#include "wine/avifmt.h" +#include "wine/vfw.h" + +#include "codec-cfg.h" +#include "stheader.h" +//#include "aviheader.h" +#include "asf.h" + +#ifdef ARCH_X86 +#define ASF_LOAD_GUID_PREFIX(guid) (*(uint32_t *)(guid)) +#else +#define ASF_LOAD_GUID_PREFIX(guid) \ + ((guid)[3] << 24 | (guid)[2] << 16 | (guid)[1] << 8 | (guid)[0]) +#endif + +#define ASF_GUID_PREFIX_audio_stream 0xF8699E40 +#define ASF_GUID_PREFIX_video_stream 0xBC19EFC0 +#define ASF_GUID_PREFIX_audio_conceal_none 0x49f1a440 +#define ASF_GUID_PREFIX_audio_conceal_interleave 0xbfc3cd50 +#define ASF_GUID_PREFIX_header 0x75B22630 +#define ASF_GUID_PREFIX_data_chunk 0x75b22636 +#define ASF_GUID_PREFIX_index_chunk 0x33000890 +#define ASF_GUID_PREFIX_stream_header 0xB7DC0791 +#define ASF_GUID_PREFIX_header_2_0 0xD6E229D1 +#define ASF_GUID_PREFIX_file_header 0x8CABDCA1 +#define ASF_GUID_PREFIX_content_desc 0x75b22633 + + +static ASF_header_t asfh; +static ASF_obj_header_t objh; +static ASF_file_header_t fileh; +static ASF_stream_header_t streamh; +static ASF_content_description_t contenth; + +unsigned char* asf_packet=NULL; +int asf_scrambling_h=1; +int asf_scrambling_w=1; +int asf_scrambling_b=1; +int asf_packetsize=0; + +//int i; + +// the variable string is modify in this function +void pack_asf_string(char* string, int length) { + int i,j; + if( string==NULL ) return; + for( i=0, j=0; i<length && string[i]!='\0'; i+=2, j++) { + string[j]=string[i]; + } + string[j]='\0'; +} + +// the variable string is modify in this function +void print_asf_string(const char* name, char* string, int length) { + pack_asf_string(string, length); + mp_msg(MSGT_HEADER,MSGL_V,"%s%s\n", name, string); +} + +static char* asf_chunk_type(unsigned char* guid) { + static char tmp[60]; + char *p; + int i; + + switch(ASF_LOAD_GUID_PREFIX(guid)){ + case ASF_GUID_PREFIX_audio_stream: + return "guid_audio_stream"; + case ASF_GUID_PREFIX_video_stream: + return "guid_video_stream"; + case ASF_GUID_PREFIX_audio_conceal_none: + return "guid_audio_conceal_none"; + case ASF_GUID_PREFIX_audio_conceal_interleave: + return "guid_audio_conceal_interleave"; + case ASF_GUID_PREFIX_header: + return "guid_header"; + case ASF_GUID_PREFIX_data_chunk: + return "guid_data_chunk"; + case ASF_GUID_PREFIX_index_chunk: + return "guid_index_chunk"; + case ASF_GUID_PREFIX_stream_header: + return "guid_stream_header"; + case ASF_GUID_PREFIX_header_2_0: + return "guid_header_2_0"; + case ASF_GUID_PREFIX_file_header: + return "guid_file_header"; + case ASF_GUID_PREFIX_content_desc: + return "guid_content_desc"; + default: + strcpy(tmp, "unknown guid "); + p = tmp + strlen(tmp); + for (i = 0; i < 16; i++) { + if ((1 << i) & ((1<<4) | (1<<6) | (1<<8))) *p++ = '-'; + sprintf(p, "%02x", guid[i]); + p += 2; + } + return tmp; + } +} + +int asf_check_header(demuxer_t *demuxer){ + unsigned char asfhdrguid[16]={0x30,0x26,0xB2,0x75,0x8E,0x66,0xCF,0x11,0xA6,0xD9,0x00,0xAA,0x00,0x62,0xCE,0x6C}; + stream_read(demuxer->stream,(char*) &asfh,sizeof(asfh)); // header obj + le2me_ASF_header_t(&asfh); // swap to machine endian +// for(i=0;i<16;i++) printf(" %02X",temp[i]);printf("\n"); +// for(i=0;i<16;i++) printf(" %02X",asfhdrguid[i]);printf("\n"); + if(memcmp(asfhdrguid,asfh.objh.guid,16)){ + mp_msg(MSGT_HEADER,MSGL_V,"ASF_check: not ASF guid!\n"); + return 0; // not ASF guid + } + if(asfh.cno>256){ + mp_msg(MSGT_HEADER,MSGL_V,"ASF_check: invalid subchunks_no %d\n",(int) asfh.cno); + return 0; // invalid header??? + } + return 1; +} + +extern void print_wave_header(WAVEFORMATEX *h); +extern void print_video_header(BITMAPINFOHEADER *h); + +int read_asf_header(demuxer_t *demuxer){ + static unsigned char buffer[1024]; + +#if 1 + //printf("ASF file! (subchunks: %d)\n",asfh.cno); +while(!stream_eof(demuxer->stream)){ + int pos,endpos; + pos=stream_tell(demuxer->stream); + stream_read(demuxer->stream,(char*) &objh,sizeof(objh)); + le2me_ASF_obj_header_t(&objh); + if(stream_eof(demuxer->stream)) break; // EOF + endpos=pos+objh.size; +// for(i=0;i<16;i++) printf("%02X ",objh.guid[i]); + //printf("0x%08X [%s] %d\n",pos, asf_chunk_type(objh.guid),(int) objh.size); + switch(ASF_LOAD_GUID_PREFIX(objh.guid)){ + case ASF_GUID_PREFIX_stream_header: + stream_read(demuxer->stream,(char*) &streamh,sizeof(streamh)); + le2me_ASF_stream_header_t(&streamh); + if(verbose){ + mp_msg(MSGT_HEADER,MSGL_V,"stream type: %s\n",asf_chunk_type(streamh.type)); + mp_msg(MSGT_HEADER,MSGL_V,"stream concealment: %s\n",asf_chunk_type(streamh.concealment)); + mp_msg(MSGT_HEADER,MSGL_V,"type: %d bytes, stream: %d bytes ID: %d\n",(int)streamh.type_size,(int)streamh.stream_size,(int)streamh.stream_no); + mp_msg(MSGT_HEADER,MSGL_V,"unk1: %lX unk2: %X\n",(unsigned long)streamh.unk1,(unsigned int)streamh.unk2); + mp_msg(MSGT_HEADER,MSGL_V,"FILEPOS=0x%X\n",stream_tell(demuxer->stream)); + } + if(streamh.type_size>1024 || streamh.stream_size>1024){ + mp_msg(MSGT_HEADER,MSGL_FATAL,"FATAL: header size bigger than 1024 bytes!\n" + "Please contact mplayer authors, and upload/send this file.\n"); + return 0; + } + // type-specific data: + stream_read(demuxer->stream,(char*) buffer,streamh.type_size); + switch(ASF_LOAD_GUID_PREFIX(streamh.type)){ + case ASF_GUID_PREFIX_audio_stream: { + sh_audio_t* sh_audio=new_sh_audio(demuxer,streamh.stream_no & 0x7F); + sh_audio->wf=calloc((streamh.type_size<sizeof(WAVEFORMATEX))?sizeof(WAVEFORMATEX):streamh.type_size,1); + memcpy(sh_audio->wf,buffer,streamh.type_size); + le2me_WAVEFORMATEX(sh_audio->wf); + if(verbose>=1) print_wave_header(sh_audio->wf); + if(ASF_LOAD_GUID_PREFIX(streamh.concealment)==ASF_GUID_PREFIX_audio_conceal_interleave){ + stream_read(demuxer->stream,(char*) buffer,streamh.stream_size); + asf_scrambling_h=buffer[0]; + asf_scrambling_w=(buffer[2]<<8)|buffer[1]; + asf_scrambling_b=(buffer[4]<<8)|buffer[3]; + asf_scrambling_w/=asf_scrambling_b; + } else { + asf_scrambling_b=asf_scrambling_h=asf_scrambling_w=1; + } + mp_msg(MSGT_HEADER,MSGL_V,"ASF: audio scrambling: %d x %d x %d\n",asf_scrambling_h,asf_scrambling_w,asf_scrambling_b); + //if(demuxer->audio->id==-1) demuxer->audio->id=streamh.stream_no & 0x7F; + break; + } + case ASF_GUID_PREFIX_video_stream: { + sh_video_t* sh_video=new_sh_video(demuxer,streamh.stream_no & 0x7F); + int len=streamh.type_size-(4+4+1+2); +// sh_video->bih=malloc(chunksize); memset(sh_video->bih,0,chunksize); + sh_video->bih=calloc((len<sizeof(BITMAPINFOHEADER))?sizeof(BITMAPINFOHEADER):len,1); + memcpy(sh_video->bih,&buffer[4+4+1+2],len); + le2me_BITMAPINFOHEADER(sh_video->bih); + //sh_video->fps=(float)sh_video->video.dwRate/(float)sh_video->video.dwScale; + //sh_video->frametime=(float)sh_video->video.dwScale/(float)sh_video->video.dwRate; + if(verbose>=1) print_video_header(sh_video->bih); + //asf_video_id=streamh.stream_no & 0x7F; + //if(demuxer->video->id==-1) demuxer->video->id=streamh.stream_no & 0x7F; + break; + } + } + // stream-specific data: + // stream_read(demuxer->stream,(char*) buffer,streamh.stream_size); + break; +// case ASF_GUID_PREFIX_header_2_0: return "guid_header_2_0"; + case ASF_GUID_PREFIX_file_header: // guid_file_header + stream_read(demuxer->stream,(char*) &fileh,sizeof(fileh)); + le2me_ASF_file_header_t(&fileh); + mp_msg(MSGT_HEADER,MSGL_V,"ASF: packets: %d flags: %d pack_size: %d frame_size: %d\n",(int)fileh.packets,(int)fileh.flags,(int)fileh.packetsize,(int)fileh.frame_size); + asf_packetsize=fileh.packetsize; + asf_packet=malloc(asf_packetsize); // !!! + break; + case ASF_GUID_PREFIX_data_chunk: // guid_data_chunk + demuxer->movi_start=stream_tell(demuxer->stream)+26; + demuxer->movi_end=endpos; + mp_msg(MSGT_HEADER,MSGL_V,"Found movie at 0x%X - 0x%X\n",(int)demuxer->movi_start,(int)demuxer->movi_end); + break; + +// case ASF_GUID_PREFIX_index_chunk: return "guid_index_chunk"; + + case ASF_GUID_PREFIX_content_desc: // Content description + if(verbose){ + char *string=NULL; + stream_read(demuxer->stream,(char*) &contenth,sizeof(contenth)); + le2me_ASF_content_description_t(&contenth); + mp_msg(MSGT_HEADER,MSGL_V,"\n"); + // extract the title + if( contenth.title_size!=0 ) { + string=(char*)malloc(contenth.title_size); + stream_read(demuxer->stream, string, contenth.title_size); + print_asf_string(" Title: ", string, contenth.title_size); + } + // extract the author + if( contenth.author_size!=0 ) { + string=(char*)realloc((void*)string, contenth.author_size); + stream_read(demuxer->stream, string, contenth.author_size); + print_asf_string(" Author: ", string, contenth.author_size); + } + // extract the copyright + if( contenth.copyright_size!=0 ) { + string=(char*)realloc((void*)string, contenth.copyright_size); + stream_read(demuxer->stream, string, contenth.copyright_size); + print_asf_string(" Copyright: ", string, contenth.copyright_size); + } + // extract the comment + if( contenth.comment_size!=0 ) { + string=(char*)realloc((void*)string, contenth.comment_size); + stream_read(demuxer->stream, string, contenth.comment_size); + print_asf_string(" Comment: ", string, contenth.comment_size); + } + // extract the rating + if( contenth.rating_size!=0 ) { + string=(char*)realloc((void*)string, contenth.rating_size); + stream_read(demuxer->stream, string, contenth.rating_size); + print_asf_string(" Rating: ", string, contenth.rating_size); + } + mp_msg(MSGT_HEADER,MSGL_V,"\n"); + free(string); + } + break; + + } // switch GUID + + if(ASF_LOAD_GUID_PREFIX(objh.guid)==ASF_GUID_PREFIX_data_chunk) break; // movi chunk + + if(!stream_seek(demuxer->stream,endpos)) break; +} // while EOF + +#if 0 +if(verbose){ + printf("ASF duration: %d\n",(int)fileh.duration); + printf("ASF start pts: %d\n",(int)fileh.start_timestamp); + printf("ASF end pts: %d\n",(int)fileh.end_timestamp); +} +#endif + +#endif +return 1; +} |