mirror of https://github.com/mpv-player/mpv
Add Parsing off ftyp box and some more docs ref
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5258 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -12,6 +12,8 @@
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// aswell as .mov specific stuff.
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// All sort of Stuff about MPEG4:
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// http://www.cmlab.csie.ntu.edu.tw/~pkhsiao/thesis.html
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// I really recommend N4270-1.doc and N4270-2.doc which are exact specs
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// of the MP4-File Format and the MPEG4 Specific extensions. ::atmos
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#include <stdio.h>
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#include <stdlib.h>
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@ -248,15 +250,35 @@ int mov_check_file(demuxer_t* demuxer){
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else if(len<8) break; // invalid chunk
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switch(id){
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case MOV_FOURCC('f','t','y','p'):
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// skip over the file type chunk
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// Here are my guesses on it's format (atmos):
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// char[4] majorBrand (eg. 'isom')
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// int minorVersion (eg. 0x00000000)
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// char[4] mediaType(?) (eg. 'mp41')
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mp_msg(MSGT_DEMUX,MSGL_V,"MOV: Skipping unsupported Filetype chunk (len: %d)!\n",
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len);
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case MOV_FOURCC('f','t','y','p'): {
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int i;
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unsigned int tmp;
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// File Type Box (ftyp):
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// char[4] major_brand (eg. 'isom')
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// int minor_version (eg. 0x00000000)
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// char[4] compatible_brands[] (eg. 'mp41')
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// compatible_brands list spans to the end of box
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#if 1
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tmp = stream_read_dword(demuxer->stream);
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switch(tmp) {
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case MOV_FOURCC('i','s','o','m'):
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mp_msg(MSGT_DEMUX,MSGL_V,"MOV: File-Type Major-Brand: ISO Media File\n");
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break;
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default:
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tmp = be2me_32(tmp);
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mp_msg(MSGT_DEMUX,MSGL_WARN,"MOV: File-Type unknown Major-Brand: %.4s\n",&tmp);
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}
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mp_msg(MSGT_DEMUX,MSGL_V,"MOV: File-Type Minor-Version: %d\n",
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stream_read_dword(demuxer->stream));
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skipped += 8;
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// List all compatible brands
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for(i = 0; i < ((len-16)/4); i++) {
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tmp = be2me_32(stream_read_dword(demuxer->stream));
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mp_msg(MSGT_DEMUX,MSGL_V,"MOV: File-Type Compatible-Brands #%d: %.4s\n",i,&tmp);
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skipped += 4;
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}
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#endif
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} break;
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case MOV_FOURCC('m','o','o','v'):
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// case MOV_FOURCC('c','m','o','v'):
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mp_msg(MSGT_DEMUX,MSGL_V,"MOV: Movie header found!\n");
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