search for: vorbis_synthesis_headerin

...to a) Now on the playing side playing the generated MP4 file, the encoder gets handed chunks of data as they were handed over to the MP save routine. a) get the first ogg packet (the header), adjust the packet pointer a1) run vorbis_info_init a2) run vorbis_comment_init a3) call vorbis_synthesis_headerin using the first packet b) get the second packet (the header_comment), adjust the packet pointer b1) call vorbis_synthesis_headerin using the second packet c) get the third packet (the code book), adjust the packet pointer b1) call vorbis_synthesis_headerin using the third packet Here...

...s to remove the test for vorbis: /* identify the codec: try theora */ if(!theora_p && theora_decode_header(&ti,&tc,&op)>=0){ /* it is theora */ memcpy(&to,&test,sizeof(test)); theora_p=1; }else if(!vorbis_p && vorbis_synthesis_headerin(&vi,&vc,&op)>=0){ /* it is vorbis */ memcpy(&vo,&test,sizeof(test)); vorbis_p=1; }else{ /* whatever it is, we don't care about it */ ogg_stream_clear(&test); } I simply commented out the "else if (! v...

...stion. I'm trying to write an OS X AudioCodec for Vorbis using libvorbis. I'm confused about the libvorbis dependency on libogg. I thought the vorbis spec didn't require ogg as the container, but the libvorbis API requires ogg data structures in various synthesis layer functions like vorbis_synthesis_headerin. Is this library only intended to be used with ogg containers or is there a way to use it without ogg? Thanks, -n8 -- >>>-- Nathaniel Gray -- Caltech Computer Science ------> >>>-- Mojave Project -- http://mojave.cs.caltech.edu -->

ok, I'm aware that vo_open cant be used at the same time as other functions such as ogg_sync_wrote, ogg_sync_pageout, ogg_stream_pagein, ogg_stream_packetout and vorbis_synthesis_headerin. In order to get information from the bitstream i've been using this method because it's fast and doesn't require decoding of the stream. But, i can only retrieve the average bitrate of the ogg stream with the vorbis_info struct. I tried using vo_open but could only retrieve gar...

...player_example.c:(.text+0xed9): undefined reference to `ogg_stream_pagein' player_example.c:(.text+0xef1): undefined reference to `ogg_stream_packetout' player_example.c:(.text+0xf18): undefined reference to `theora_decode_header' player_example.c:(.text+0xf6d): undefined reference to `vorbis_synthesis_headerin' player_example.c:(.text+0xfa9): undefined reference to `ogg_stream_clear' player_example.c:(.text+0xfbd): undefined reference to `ogg_sync_pageout' player_example.c:(.text+0x102f): undefined reference to `theora_decode_header' player_example.c:(.text+0x10a2): undefined reference to...

.... Now, I didn't write the code that does this (it's some python mess), but I'm rewriting the assembler part and starting from the source code for "vcut". The problem with that is that "vcut" seems to use several API calls not documented in the API documentation... vorbis_synthesis_headerin() vorbis_synthesis_init() vorbis_block_init() I'm also wondering if I'm going about this all wrong, since there doesn't seem to be any easy way to do what I'm doing. All the API calls seem to be centered on encoding and decoding, rather than simply cutting and splicing encoded pac...

...b/libc.so.6.1 (gdb) backtrace #0 0x20000833908 in chunk_free () from /lib/libc.so.6.1 #1 0x20000833504 in chunk_alloc () from /lib/libc.so.6.1 #2 0x20000834b60 in __libc_calloc () from /lib/libc.so.6.1 #3 0x20000239f60 in _vorbis_unpack_books () from /usr/lib/libvorbis.so.0 #4 0x2000023a59c in vorbis_synthesis_headerin () from /usr/lib/libvorbis.so.0 #5 0x20000484784 in _fetch_headers () from /usr/lib/libvorbisfile.so.0 #6 0x20000484d28 in _open_seekable () from /usr/lib/libvorbisfile.so.0 #7 0x20000485698 in ov_open_callbacks () from /usr/lib/libvorbisfile.so.0 #8 0x2000048722c in ov_open () from /usr/lib/li...

...etch_headers() is here: i=0; while(i<3){ ogg_stream_pagein(&vf->os,og_ptr); while(i<3){ int result=ogg_stream_packetout(&vf->os,&op); if(result==0)break; if(result==-1){ ret=OV_EBADHEADER; goto bail_header; } if((ret=vorbis_synthesis_headerin(vi,vc,&op))){ goto bail_header; } i++; } if(i<3) if(_get_next_page(vf,og_ptr,1)<0){ ret=OV_EBADHEADER; goto bail_header; } } return 0; Also, notice that ogg_stream_packetout() is called in a loop, but no reading can happen duri...

.... Reject multiple headers of the same type. And r19426 refers to: commit c761e218422b7f656635466fea013d9b4ba686f3 Author: Tim Terriberry <tterribe at xiph.org> Date: Wed Jan 7 03:16:56 2015 +0000 Reject multiple headers of the same type. A common application pattern is to call vorbis_synthesis_headerin() and count how many times it succeeds. If you feed it multiple valid comment headers, they will all succeed, meaning you can be fooled into think you have a valid Vorbis file despite never seeing a setup header. This patch makes libvorbis reject multiple headers of the same...

Hi, I'm experiencing a serious problem when trying to replace libvorbis with tremor (from svn): premitting that I don't want to use the ov_* functions, calling vorbis_synthesis_headerin() on the 3 initial packets works with libvorbis but immediately fails with tremor. At first sight it seems that the function in tremor either receives a leading \n before every header (that shouldn't be there, IIUC), or that it should be there but the function doesn't like it. Can some...

Hi, This mozilla bug report is a crash triggered by a Vorbis file with corrupt headers: https://bugzilla.mozilla.org/show_bug.cgi?id=481601 The patch to fix the crash adds a new vorbis_dsp_init() function to libvorbis, and calls that from fs_vorbis_init() in libfishsound: https://bug481601.bugzilla.mozilla.org/attachment.cgi?id=366150 The public function it adds is: void

...putFile,"Error reading first page of Ogg bitstream data.\n"); exit(1); } if(ogg_stream_packetout(&os,&op)!=1){ /* no page? must not be vorbis */ fprintf(outputFile,"Error reading initial header packet.\n"); exit(1); } if(vorbis_synthesis_headerin(&vi,&vc,&op)<0){ /* error case; not a vorbis header */ fprintf(outputFile,"This Ogg bitstream does not contain Vorbis " "audio data.\n"); exit(1); } printf("We're sure we're Vorbis.\n"); /* At this poi...

...for packet numbers as a dropped packet will // mess up the running packetCount total (which should be removed eventually) */ if (ogg_packet_get_packetno(op) <= LAST_VORBIS_HEADER_PACKET) { // Currently decoding inside the vorbis headers (first three packets) v_rv0 = vorbis_synthesis_headerin(vi, vc, op); dprintf("Header decode: %d %p %p %p\n", v_rv0, vi, vc, op); if (ogg_packet_get_packetno(op) == LAST_VORBIS_HEADER_PACKET) { /* // WARNING! DO NOT CALL vorbis_synthesis_init BEFORE YOU HAVE // PROCESSED **ALL** THE HEADERS. FAILURE TO DO SO WILL CAUSE...