--- /dev/null
+oggenc:
+Michael Smith <msmith@xiph.org>
+
+oggdec:
+Michael Smith <msmith@xiph.org>
+
+ogg123:
+Kenneth Arnold <kcarnold-xiph@arnoldnet.net>
+Stan Seibert <volsung@xiph.org>
+Segher Boessenkool <segher@xiph.org>
+
+ogginfo:
+Michael Smith <msmith@xiph.org>
+
+vcut:
+Michael Smith <msmith@xiph.org>
+Michael Gold <mgold@ncf.ca>
+
+vorbiscomment:
+Michael Smith <msmith@xiph.org>
+
+and the rest of the Xiph.Org Foundation and its contributors.
\ No newline at end of file
--- /dev/null
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
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+
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+
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+
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+modification follow.
+\f
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
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+Activities other than copying, distribution and modification are not
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+running the Program is not restricted, and the output from the Program
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+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
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+
+You may charge a fee for the physical act of transferring a copy, and
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+
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+
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+\f
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+
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+a storage or distribution medium does not bring the other work under
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+
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+under Section 2) in object code or executable form under the terms of
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+\f
+ 4. You may not copy, modify, sublicense, or distribute the Program
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+
+This section is intended to make thoroughly clear what is believed to
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+\f
+ 8. If the distribution and/or use of the Program is restricted in
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+
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+
+ 10. If you wish to incorporate parts of the Program into other free
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+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
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+
+ END OF TERMS AND CONDITIONS
+\f
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
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+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
--- /dev/null
+WHAT'S HERE:
+
+This source distribution includes the vorbis-tools and nothing else.
+The audio codec libraries for use with Ogg bitstreams are contained in
+other modules: vorbis, speex and flac.
+
+
+DIRECTORIES:
+
+debian/ debian packaging stuff
+include/ header files shared between the tools
+intl/ GNU gettext library from gettext-0.10.40 (for i18n support)
+ogg123/ an ogg vorbis command line audio player
+oggenc/ the ogg vorbis encoder
+oggdec/ a simple, portable command line decoder (to wav and raw)
+ogginfo/ provides information (tags, bitrate, length, etc.) about
+ an ogg vorbis file
+po/ translations for non-English languages
+share/ code shared between the tools
+vcut/ cuts an ogg vorbis file into two parts at a particular point
+vorbiscomment/ edits the comments in an ogg vorbis file
+win32/ Win32 build stuff
+
+
+DEPENDENCIES:
+
+All of the tools require libogg and libvorbis to be installed (along
+with the header files). Additionally, ogg123 requires libao, libcurl,
+and a POSIX-compatible thread library. Ogg123 can optionally compiled
+to use libFLAC, and libspeex. Oggenc can be optionally compiled with
+libFLAC, and libkate. The libraries libogg, libvorbis, and libao are
+all available at
+ http://www.vorbis.com/download.psp
+
+The libcurl library is packaged with most Linux distributions. The
+source code can also be downloaded from:
+ http://curl.haxx.se/libcurl/
+
+FLAC is available at:
+ http://flac.sourceforge.net
+
+Speex is available at:
+ http://www.speex.org/
+
+libkate is available at:
+ http://libkate.googlecode.com/
+
+
+CONTACT:
+
+The Ogg Vorbis homepage is located at 'http://www.vorbis.com'. Up to
+date technical documents, contact information, source code and
+pre-built utilities may be found there.
+
+Developer information is available from http://www.xiph.org/. Check
+there for bug reporting information, mailing lists and other resources.
+
+
+BUILDING FROM SUBVERSION (see the file HACKING for details):
+
+./autogen.sh
+make
+
+and as root if desired :
+
+make install
+
+This will install the tools into /usr/local/bin and manpages into
+/usr/local/man.
+
+
+BUILDING FROM TARBALL DISTRIBUTIONS:
+
+./configure
+make
+
+and as root if desired :
+
+make install
+
+BUILDING RPMS:
+
+RPMs may be built by:
+
+after autogen.sh or configure
+
+make dist
+rpm -ta vorbis-tools-<version>.tar.gz
+
+
+KNOWN BUGS:
+
+#1321
+ First noticed in non-English versions of the application, ogg123 has a major
+ bug when it comes to status messages in the shell: any output bigger than
+ the console's width will break and start spamming that message infinitely
+ until the console is resized.
+
+ Different attempts to fix this bug have ended up causing bigger problems,
+ leading to the conclusion that it simply can't be fixed without a large
+ re-write of the application, which will not happen any time soon. If you
+ come across this issue, please augment your terminal window size.
\ No newline at end of file
--- /dev/null
+#ifndef VORBIS_TOOLS_I18N_H
+#define VORBIS_TOOLS_I18N_H
+
+#ifdef ENABLE_NLS
+#include <libintl.h>
+#define _(X) gettext(X)
+#else
+#define _(X) (X)
+#define textdomain(X)
+#define bindtextdomain(X, Y)
+#endif
+#ifdef gettext_noop
+#define N_(X) gettext_noop(X)
+#else
+#define N_(X) (X)
+#endif
+
+#endif
--- /dev/null
+/* This program is licensed under the GNU Library General Public License, version 2,
+ * a copy of which is included with this program (LICENCE.LGPL).
+ *
+ * (c) 2000-2001 Michael Smith <msmith@xiph.org>
+ *
+ *
+ * Comment editing backend, suitable for use by nice frontend interfaces.
+ *
+ * last modified: $Id: vcedit.c 16826 2010-01-27 04:16:24Z xiphmont $
+ */
+
+/* Handle muxed streams and the Vorbis renormalization without having
+ * to understand remuxing:
+ * Linked list of buffers (buffer_chain). Start a link and whenever
+ * you encounter an unknown page from the current stream (ie we found
+ * its bos in the bos section) push it onto the current buffer. Whenever
+ * you encounter the stream being renormalized create a new link in the
+ * chain.
+ * On writing, write the contents of the first link before every Vorbis
+ * page written, and move to the next link. Assuming the Vorbis pages
+ * in match vorbis pages out, the order of pages from different logical
+ * streams will be unchanged.
+ * Special case: header. After writing the vorbis headers, and before
+ * starting renormalization, flush accumulated links (takes care of
+ * situations where number of secondary vorbis header pages changes due
+ * to remuxing. Similarly flush links at the end of renormalization
+ * and before the start of the next chain is written.
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <ogg/ogg.h>
+#include <vorbis/codec.h>
+
+#include "vcedit.h"
+#include "vceditaux.h"
+#include "i18n.h"
+
+
+#define CHUNKSIZE 4096
+#define BUFFERCHUNK CHUNKSIZE
+
+/* Helper function, shouldn't need to call directly */
+static int page_buffer_push(vcedit_buffer_chain *bufferlink, ogg_page *og) {
+ int result=0;
+ char *tmp;
+ vcedit_page_buffer *buffer;
+
+ buffer = &bufferlink->buffer;
+ tmp = realloc(buffer->data,
+ buffer->data_len + og->header_len + og->body_len);
+ if(tmp) {
+ buffer->data = tmp;
+ memcpy(buffer->data + buffer->data_len, og->header,
+ og->header_len);
+ buffer->data_len += og->header_len;
+ memcpy(buffer->data + buffer->data_len, og->body,
+ og->body_len);
+ result = 1;
+ buffer->data_len += og->body_len;
+ } else {
+ result = -1;
+ }
+
+ return result;
+}
+
+/* Write and free the first link using callbacks */
+static int buffer_chain_writelink(vcedit_state *state, void *out) {
+ int result = 0;
+ vcedit_buffer_chain *tmpchain;
+ vcedit_page_buffer *tmpbuffer;
+
+ tmpchain = state->sidebuf;
+ tmpbuffer = &tmpchain->buffer;
+ if(tmpbuffer->data_len)
+ {
+ if(state->write(tmpbuffer->data,1,tmpbuffer->data_len, out) !=
+ (size_t) tmpbuffer->data_len)
+ result = -1;
+ else
+ result = 1;
+ }
+
+ free(tmpbuffer->data);
+ state->sidebuf = tmpchain->next;
+ free(tmpchain);
+ return result;
+}
+
+
+static int buffer_chain_newlink(vcedit_state *state) {
+ int result = 1;
+ vcedit_buffer_chain *bufferlink;
+
+ if(!state->sidebuf) {
+ state->sidebuf = malloc (sizeof *state->sidebuf);
+ if(state->sidebuf) {
+ bufferlink = state->sidebuf;
+ } else {
+ result = -1;
+ }
+ } else {
+ bufferlink=state->sidebuf;
+ while(bufferlink->next) {
+ bufferlink = bufferlink->next;
+ }
+ bufferlink->next = malloc (sizeof *bufferlink->next);
+ if(bufferlink->next) {
+ bufferlink = bufferlink->next;
+ } else {
+ result = -1;
+ }
+ }
+
+ if(result > 0 ) {
+ bufferlink->next = 0;
+ bufferlink->buffer.data = 0;
+ bufferlink->buffer.data_len = 0;
+ }
+ else
+ state->lasterror =
+ _("Couldn't get enough memory for input buffering.");
+
+ return result;
+}
+
+
+/* Push page onto the end of the buffer chain */
+static int buffer_chain_push(vcedit_state *state, ogg_page *og) {
+ /* If there is no sidebuffer yet we need to create one, otherwise
+ * traverse to the last buffer and push the new page onto it. */
+ int result=1;
+ vcedit_buffer_chain *bufferlink;
+ if(!state->sidebuf) {
+ result = buffer_chain_newlink(state);
+ }
+
+ if(result > 0) {
+ bufferlink = state->sidebuf;
+ while(bufferlink->next) {
+ bufferlink = bufferlink->next;
+ }
+ result = page_buffer_push(bufferlink, og);
+ }
+
+ if(result < 0)
+ state->lasterror =
+ _("Couldn't get enough memory for input buffering.");
+
+ return result;
+}
+
+
+
+static int vcedit_supported_stream(vcedit_state *state, ogg_page *og) {
+ ogg_stream_state os;
+ vorbis_info vi;
+ vorbis_comment vc;
+ ogg_packet header;
+ int result = 0;
+
+ ogg_stream_init(&os, ogg_page_serialno(og));
+ vorbis_info_init(&vi);
+ vorbis_comment_init(&vc);
+
+ if( !ogg_page_bos(og) )
+ result = -1;
+
+ if(result >= 0 && ogg_stream_pagein(&os, og) < 0)
+ {
+ state->lasterror =
+ _("Error reading first page of Ogg bitstream.");
+ result = -1;
+ }
+
+ if(result >= 0 && ogg_stream_packetout(&os, &header) != 1)
+ {
+ state->lasterror = _("Error reading initial header packet.");
+ result = -1;
+ }
+
+ if(result >= 0 && vorbis_synthesis_headerin(&vi, &vc, &header) >= 0)
+ {
+ result = 1;
+ } else {
+ /* Not vorbis, may eventually become a chain of checks (Speex,
+ * Theora), but for the moment return 0, bos scan will push
+ * the current page onto the buffer.
+ */
+ }
+
+ ogg_stream_clear(&os);
+ vorbis_info_clear(&vi);
+ vorbis_comment_clear(&vc);
+ return result;
+}
+
+
+static int vcedit_contains_serial (vcedit_state *state, int serialno) {
+ int result = 0;
+ size_t count;
+ for( count=0; count < state->serials.streams_len; count++ ) {
+ if ( *(state->serials.streams + count ) == serialno )
+ result = 1;
+ }
+
+ return result;
+}
+
+
+static int vcedit_add_serial (vcedit_state *state, long serial) {
+ int result = 0;
+ long *tmp;
+
+
+ if( vcedit_contains_serial(state, serial) )
+ {
+ result = 1;
+ } else {
+ tmp = realloc(state->serials.streams,
+ (state->serials.streams_len + 1) * sizeof *tmp);
+ if(tmp) {
+ state->serials.streams = tmp;
+ *(state->serials.streams +
+ state->serials.streams_len) = serial;
+ state->serials.streams_len += 1;
+ result = 1;
+ } else {
+ state->lasterror =
+ _("Couldn't get enough memory to register new stream serial number.");
+ result = -1;
+ }
+ }
+ return result;
+}
+
+
+/* For the benefit of the secondary header read only. Quietly creates
+ * newlinks and pushes pages onto the buffer in the right way */
+static int vcedit_target_pageout (vcedit_state *state, ogg_page *og) {
+ int result = 0;
+ int pageout_result;
+ pageout_result = ogg_sync_pageout(state->oy, og);
+ if(pageout_result > 0)
+ {
+ if(state->serial == ogg_page_serialno(og))
+ result = buffer_chain_newlink(state);
+ else
+ result = buffer_chain_push(state, og);
+ } else if (pageout_result < 0) {
+ /* Vorbis comment traditionally ignores the not-synced
+ * error from pageout, so give it a different code. */
+ result = -2;
+ }
+ return result;
+}
+
+
+/* (I'm paranoid about memset(x,0,len) not giving null pointers */
+vcedit_state *vcedit_new_state(void) {
+ vcedit_state *state = malloc(sizeof(vcedit_state));
+ if(state) {
+ memset(state, 0, sizeof(vcedit_state));
+ state->sidebuf = 0;
+ state->serials.streams = 0;
+ state->serials.streams_len = 0;
+ }
+ return state;
+}
+
+char *vcedit_error(vcedit_state *state) {
+ return state->lasterror;
+}
+
+vorbis_comment *vcedit_comments(vcedit_state *state) {
+ return state->vc;
+}
+
+static void vcedit_clear_internals(vcedit_state *state) {
+ char *tmp;
+ if(state->vc) {
+ vorbis_comment_clear(state->vc);
+ free(state->vc);
+ }
+ if(state->os) {
+ ogg_stream_clear(state->os);
+ free(state->os);
+ }
+ if(state->oy) {
+ ogg_sync_clear(state->oy);
+ free(state->oy);
+ }
+ if(state->serials.streams_len) {
+ free(state->serials.streams);
+ state->serials.streams_len = 0;
+ state->serials.streams = 0;
+ }
+ while(state->sidebuf) {
+ vcedit_buffer_chain *tmpbuffer;
+ tmpbuffer = state->sidebuf;
+ state->sidebuf = tmpbuffer->next;
+ free(tmpbuffer->buffer.data);
+ free(tmpbuffer);
+ }
+ if(state->vendor)
+ free(state->vendor);
+ if(state->mainbuf)
+ free(state->mainbuf);
+ if(state->bookbuf)
+ free(state->bookbuf);
+ if(state->vi) {
+ vorbis_info_clear(state->vi);
+ free(state->vi);
+ }
+
+ tmp = state->lasterror;
+ memset(state, 0, sizeof(*state));
+ state->lasterror = tmp;
+}
+
+void vcedit_clear(vcedit_state *state)
+{
+ if(state)
+ {
+ vcedit_clear_internals(state);
+ free(state);
+ }
+}
+
+/* Next two functions pulled straight from libvorbis, apart from one change
+ * - we don't want to overwrite the vendor string.
+ */
+static void _v_writestring(oggpack_buffer *o,char *s, int len)
+{
+ while(len--)
+ {
+ oggpack_write(o,*s++,8);
+ }
+}
+
+static int _commentheader_out(vorbis_comment *vc, char *vendor, ogg_packet *op)
+{
+ oggpack_buffer opb;
+
+ oggpack_writeinit(&opb);
+
+ /* preamble */
+ oggpack_write(&opb,0x03,8);
+ _v_writestring(&opb,"vorbis", 6);
+
+ /* vendor */
+ oggpack_write(&opb,strlen(vendor),32);
+ _v_writestring(&opb,vendor, strlen(vendor));
+
+ /* comments */
+ oggpack_write(&opb,vc->comments,32);
+ if(vc->comments){
+ int i;
+ for(i=0;i<vc->comments;i++){
+ if(vc->user_comments[i]){
+ oggpack_write(&opb,vc->comment_lengths[i],32);
+ _v_writestring(&opb,vc->user_comments[i],
+ vc->comment_lengths[i]);
+ }else{
+ oggpack_write(&opb,0,32);
+ }
+ }
+ }
+ oggpack_write(&opb,1,1);
+
+ op->packet = malloc(oggpack_bytes(&opb));
+ memcpy(op->packet, opb.buffer, oggpack_bytes(&opb));
+
+ op->bytes=oggpack_bytes(&opb);
+ op->b_o_s=0;
+ op->e_o_s=0;
+ op->granulepos=0;
+
+ oggpack_writeclear(&opb);
+ return 0;
+}
+
+static int _blocksize(vcedit_state *s, ogg_packet *p)
+{
+ int this = vorbis_packet_blocksize(s->vi, p);
+ int ret = (this + s->prevW)/4;
+
+ if(!s->prevW)
+ {
+ s->prevW = this;
+ return 0;
+ }
+
+ s->prevW = this;
+ return ret;
+}
+
+static int _fetch_next_packet(vcedit_state *s, ogg_packet *p, ogg_page *page)
+{
+ int result;
+ char *buffer;
+ int bytes;
+ int serialno;
+
+ result = ogg_stream_packetout(s->os, p);
+
+ if(result > 0)
+ return 1;
+ else {
+ while(1) {
+ if(s->eosin)
+ return 0;
+
+ while(ogg_sync_pageout(s->oy, page) <= 0)
+ {
+ buffer = ogg_sync_buffer(s->oy, CHUNKSIZE);
+ bytes = s->read(buffer,1, CHUNKSIZE, s->in);
+ ogg_sync_wrote(s->oy, bytes);
+ if(bytes == 0)
+ return 0;
+ }
+
+ serialno = ogg_page_serialno(page);
+ if(ogg_page_serialno(page) != s->serial)
+ {
+ if(vcedit_contains_serial(s, serialno)) {
+ result = buffer_chain_push(s, page);
+ if(result < 0)
+ return result;
+ }
+ else
+ {
+ s->eosin = 1;
+ s->extrapage = 1;
+ return 0;
+ }
+ }
+ else
+ {
+ ogg_stream_pagein(s->os, page);
+ result = buffer_chain_newlink(s);
+ if (result < 0)
+ return result;
+
+ if(ogg_page_eos(page))
+ s->eosin = 1;
+ }
+ result = ogg_stream_packetout(s->os, p);
+ if(result > 0)
+ return 1;
+ }
+ /* Here == trouble */
+ return 0;
+ }
+}
+
+int vcedit_open(vcedit_state *state, FILE *in)
+{
+ return vcedit_open_callbacks(state, (void *)in,
+ (vcedit_read_func)fread, (vcedit_write_func)fwrite);
+}
+
+int vcedit_open_callbacks(vcedit_state *state, void *in,
+ vcedit_read_func read_func, vcedit_write_func write_func)
+{
+
+ char *buffer;
+ int bytes,i;
+ int chunks = 0;
+ int read_bos, test_supported, page_pending;
+ int have_vorbis;
+ ogg_packet *header;
+ ogg_packet header_main;
+ ogg_packet header_comments;
+ ogg_packet header_codebooks;
+ ogg_page og;
+
+ state->in = in;
+ state->read = read_func;
+ state->write = write_func;
+
+ state->oy = malloc(sizeof(ogg_sync_state));
+ ogg_sync_init(state->oy);
+
+ while(1)
+ {
+ buffer = ogg_sync_buffer(state->oy, CHUNKSIZE);
+ bytes = state->read(buffer, 1, CHUNKSIZE, state->in);
+
+ ogg_sync_wrote(state->oy, bytes);
+
+ if(ogg_sync_pageout(state->oy, &og) == 1)
+ break;
+
+ if(chunks++ >= 10) /* Bail if we don't find data in the first 40 kB */
+ {
+ if(bytes<CHUNKSIZE)
+ state->lasterror = _("Input truncated or empty.");
+ else
+ state->lasterror = _("Input is not an Ogg bitstream.");
+ goto err;
+ }
+ }
+
+ /* BOS loop, starting with a loaded ogg page. */
+ if(buffer_chain_newlink(state) < 0)
+ goto err;
+
+ for( read_bos = 1, have_vorbis = 0 ; read_bos; )
+ {
+ test_supported = vcedit_supported_stream(state, &og);
+ if(test_supported < 0)
+ {
+ goto err;
+ }
+ else if (test_supported == 0 || have_vorbis )
+ {
+ if(vcedit_add_serial ( state, ogg_page_serialno(&og)) < 0)
+ goto err;
+ if( buffer_chain_push(state, &og) < 0)
+ goto err;
+ }
+ else if (test_supported > 0)
+ {
+ if(buffer_chain_newlink(state) < 0)
+ goto err;
+ state->serial = ogg_page_serialno(&og);
+ if(vcedit_add_serial ( state, ogg_page_serialno(&og)) < 0)
+ goto err;
+
+ state->os = malloc(sizeof(ogg_stream_state));
+ ogg_stream_init(state->os, state->serial);
+
+ state->vi = malloc(sizeof(vorbis_info));
+ vorbis_info_init(state->vi);
+
+ state->vc = malloc(sizeof(vorbis_comment));
+ vorbis_comment_init(state->vc);
+
+ if(ogg_stream_pagein(state->os, &og) < 0)
+ {
+ state->lasterror =
+ _("Error reading first page of Ogg bitstream.");
+ goto err;
+ }
+
+ if(ogg_stream_packetout(state->os, &header_main) != 1)
+ {
+ state->lasterror =
+ _("Error reading initial header packet.");
+ goto err;
+ }
+
+ if(vorbis_synthesis_headerin(state->vi, state->vc,
+ &header_main) < 0)
+ {
+ state->lasterror =
+ _("Ogg bitstream does not contain Vorbis data.");
+ goto err;
+ }
+ have_vorbis = 1;
+ }
+ while(1)
+ {
+ buffer = ogg_sync_buffer(state->oy, CHUNKSIZE);
+ bytes = state->read(buffer, 1, CHUNKSIZE, state->in);
+
+ if(bytes == 0)
+ {
+ state->lasterror =
+ _("EOF before recognised stream.");
+ goto err;
+ }
+
+ ogg_sync_wrote(state->oy, bytes);
+
+ if(ogg_sync_pageout(state->oy, &og) == 1)
+ break;
+ }
+ if(!ogg_page_bos(&og)) {
+ read_bos = 0;
+ page_pending = 1;
+ }
+ }
+
+ if(!state->os) {
+ state->lasterror = _("Ogg bitstream does not contain a supported data-type.");
+ goto err;
+ }
+
+ state->mainlen = header_main.bytes;
+ state->mainbuf = malloc(state->mainlen);
+ memcpy(state->mainbuf, header_main.packet, header_main.bytes);
+
+ if(ogg_page_serialno(&og) == state->serial)
+ {
+ if(buffer_chain_newlink(state) < 0)
+ goto err;
+ }
+
+ else
+ {
+ if(buffer_chain_push(state, &og) < 0)
+ goto err;
+ page_pending = 0;
+ }
+
+ i = 0;
+ header = &header_comments;
+ while(i<2) {
+ while(i<2) {
+ int result;
+ if(!page_pending)
+ result = vcedit_target_pageout(state, &og);
+ else
+ {
+ result = 1;
+ page_pending = 0;
+ }
+ if(result == 0 || result == -2) break; /* Too little data so far */
+ else if(result == -1) goto err;
+ else if(result == 1)
+ {
+ ogg_stream_pagein(state->os, &og);
+ while(i<2)
+ {
+ result = ogg_stream_packetout(state->os, header);
+ if(result == 0) break;
+ if(result == -1)
+ {
+ state->lasterror = _("Corrupt secondary header.");
+ goto err;
+ }
+ vorbis_synthesis_headerin(state->vi, state->vc, header);
+ if(i==1)
+ {
+ state->booklen = header->bytes;
+ state->bookbuf = malloc(state->booklen);
+ memcpy(state->bookbuf, header->packet,
+ header->bytes);
+ }
+ i++;
+ header = &header_codebooks;
+ }
+ }
+ }
+
+ buffer = ogg_sync_buffer(state->oy, CHUNKSIZE);
+ bytes = state->read(buffer, 1, CHUNKSIZE, state->in);
+ if(bytes == 0 && i < 2)
+ {
+ state->lasterror = _("EOF before end of Vorbis headers.");
+ goto err;
+ }
+ ogg_sync_wrote(state->oy, bytes);
+ }
+
+ /* Copy the vendor tag */
+ state->vendor = malloc(strlen(state->vc->vendor) +1);
+ strcpy(state->vendor, state->vc->vendor);
+
+ /* Headers are done! */
+ return 0;
+
+err:
+ vcedit_clear_internals(state);
+ return -1;
+}
+
+int vcedit_write(vcedit_state *state, void *out)
+{
+ ogg_stream_state streamout;
+ ogg_packet header_main;
+ ogg_packet header_comments;
+ ogg_packet header_codebooks;
+
+ ogg_page ogout, ogin;
+ ogg_packet op;
+ ogg_int64_t granpos = 0;
+ int result;
+ char *buffer;
+ int bytes;
+ int needflush=0, needout=0;
+
+ state->eosin = 0;
+ state->extrapage = 0;
+
+ header_main.bytes = state->mainlen;
+ header_main.packet = state->mainbuf;
+ header_main.b_o_s = 1;
+ header_main.e_o_s = 0;
+ header_main.granulepos = 0;
+
+ header_codebooks.bytes = state->booklen;
+ header_codebooks.packet = state->bookbuf;
+ header_codebooks.b_o_s = 0;
+ header_codebooks.e_o_s = 0;
+ header_codebooks.granulepos = 0;
+
+ ogg_stream_init(&streamout, state->serial);
+
+ _commentheader_out(state->vc, state->vendor, &header_comments);
+
+ ogg_stream_packetin(&streamout, &header_main);
+ ogg_stream_packetin(&streamout, &header_comments);
+ ogg_stream_packetin(&streamout, &header_codebooks);
+
+ while((result = ogg_stream_flush(&streamout, &ogout)))
+ {
+ if(state->sidebuf && buffer_chain_writelink(state, out) < 0)
+ goto cleanup;
+ if(state->write(ogout.header,1,ogout.header_len, out) !=
+ (size_t) ogout.header_len)
+ goto cleanup;
+ if(state->write(ogout.body,1,ogout.body_len, out) !=
+ (size_t) ogout.body_len)
+ goto cleanup;
+ }
+
+ while(state->sidebuf) {
+ if(buffer_chain_writelink(state, out) < 0)
+ goto cleanup;
+ }
+ if(buffer_chain_newlink(state) < 0)
+ goto cleanup;
+
+ while(_fetch_next_packet(state, &op, &ogin))
+ {
+ int size;
+ size = _blocksize(state, &op);
+ granpos += size;
+
+ if(needflush)
+ {
+ if(ogg_stream_flush(&streamout, &ogout))
+ {
+ if(state->sidebuf &&
+ buffer_chain_writelink(state, out) < 0)
+ goto cleanup;
+ if(state->write(ogout.header,1,ogout.header_len,
+ out) != (size_t) ogout.header_len)
+ goto cleanup;
+ if(state->write(ogout.body,1,ogout.body_len,
+ out) != (size_t) ogout.body_len)
+ goto cleanup;
+ }
+ }
+ else if(needout)
+ {
+ if(ogg_stream_pageout(&streamout, &ogout))
+ {
+ if(state->sidebuf &&
+ buffer_chain_writelink(state, out) < 0)
+ goto cleanup;
+ if(state->write(ogout.header,1,ogout.header_len,
+ out) != (size_t) ogout.header_len)
+ goto cleanup;
+ if(state->write(ogout.body,1,ogout.body_len,
+ out) != (size_t) ogout.body_len)
+ goto cleanup;
+ }
+ }
+
+ needflush=needout=0;
+
+ if(op.granulepos == -1)
+ {
+ op.granulepos = granpos;
+ ogg_stream_packetin(&streamout, &op);
+ }
+ else /* granulepos is set, validly. Use it, and force a flush to
+ account for shortened blocks (vcut) when appropriate */
+ {
+ if(granpos > op.granulepos)
+ {
+ granpos = op.granulepos;
+ ogg_stream_packetin(&streamout, &op);
+ needflush=1;
+ }
+ else
+ {
+ ogg_stream_packetin(&streamout, &op);
+ needout=1;
+ }
+ }
+ }
+
+ streamout.e_o_s = 1;
+ while(ogg_stream_flush(&streamout, &ogout))
+ {
+ if(state->sidebuf && buffer_chain_writelink(state, out) < 0)
+ goto cleanup;
+ if(state->write(ogout.header,1,ogout.header_len,
+ out) != (size_t) ogout.header_len)
+ goto cleanup;
+ if(state->write(ogout.body,1,ogout.body_len,
+ out) != (size_t) ogout.body_len)
+ goto cleanup;
+ }
+
+ if (state->extrapage)
+ {
+ /* This is the first page of a new chain, get rid of the
+ * sidebuffer */
+ while(state->sidebuf)
+ if(buffer_chain_writelink(state, out) < 0)
+ goto cleanup;
+ if(state->write(ogin.header,1,ogin.header_len,
+ out) != (size_t) ogin.header_len)
+ goto cleanup;
+ if (state->write(ogin.body,1,ogin.body_len, out) !=
+ (size_t) ogin.body_len)
+ goto cleanup;
+ }
+
+ state->eosin=0; /* clear it, because not all paths to here do */
+ while(!state->eosin) /* We reached eos, not eof */
+ {
+ /* We copy the rest of the stream (other logical streams)
+ * through, a page at a time. */
+ while(1)
+ {
+ result = ogg_sync_pageout(state->oy, &ogout);
+ if(result==0)
+ break;
+ if(result<0)
+ state->lasterror = _("Corrupt or missing data, continuing...");
+ else
+ {
+ /* Don't bother going through the rest, we can just
+ * write the page out now */
+ if(state->write(ogout.header,1,ogout.header_len,
+ out) != (size_t) ogout.header_len) {
+ goto cleanup;
+ }
+ if(state->write(ogout.body,1,ogout.body_len, out) !=
+ (size_t) ogout.body_len) {
+ goto cleanup;
+ }
+ }
+ }
+ buffer = ogg_sync_buffer(state->oy, CHUNKSIZE);
+ bytes = state->read(buffer,1, CHUNKSIZE, state->in);
+ ogg_sync_wrote(state->oy, bytes);
+ if(bytes == 0)
+ {
+ state->eosin = 1;
+ break;
+ }
+ }
+
+
+cleanup:
+ ogg_stream_clear(&streamout);
+
+ /* We don't ogg_packet_clear() this, because the memory was allocated in
+ _commentheader_out(), so we mirror that here */
+ _ogg_free(header_comments.packet);
+
+ free(state->mainbuf);
+ free(state->bookbuf);
+ state->mainbuf = state->bookbuf = NULL;
+
+ if(!state->eosin)
+ {
+ state->lasterror =
+ _("Error writing stream to output. "
+ "Output stream may be corrupted or truncated.");
+ return -1;
+ }
+
+ return 0;
+}
--- /dev/null
+/* This program is licensed under the GNU Library General Public License, version 2,
+ * a copy of which is included with this program (with filename LICENSE.LGPL).
+ *
+ * (c) 2000-2001 Michael Smith <msmith@xiph.org>
+ *
+ * VCEdit header.
+ *
+ * last modified: $ID:$
+ */
+
+#ifndef __VCEDIT_H
+#define __VCEDIT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+#include <ogg/ogg.h>
+#include <vorbis/codec.h>
+
+typedef size_t (*vcedit_read_func)(void *, size_t, size_t, void *);
+typedef size_t (*vcedit_write_func)(const void *, size_t, size_t, void *);
+
+typedef struct {
+ long *streams;
+ size_t streams_len;
+} vcedit_serial_nos;
+
+typedef struct {
+ ogg_sync_state *oy;
+ ogg_stream_state *os;
+
+ vorbis_comment *vc;
+ vorbis_info *vi;
+
+ vcedit_read_func read;
+ vcedit_write_func write;
+
+ void *in;
+ int serial;
+ vcedit_serial_nos serials;
+ unsigned char *mainbuf;
+ unsigned char *bookbuf;
+ int mainlen;
+ int booklen;
+ char *lasterror;
+ char *vendor;
+ int prevW;
+ int extrapage;
+ int eosin;
+ struct vcedit_buffer_chain *sidebuf;
+} vcedit_state;
+
+extern vcedit_state * vcedit_new_state(void);
+extern void vcedit_clear(vcedit_state *state);
+extern vorbis_comment * vcedit_comments(vcedit_state *state);
+extern int vcedit_open(vcedit_state *state, FILE *in);
+extern int vcedit_open_callbacks(vcedit_state *state, void *in,
+ vcedit_read_func read_func, vcedit_write_func write_func);
+extern int vcedit_write(vcedit_state *state, void *out);
+extern char * vcedit_error(vcedit_state *state);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __VCEDIT_H */
+
--- /dev/null
+typedef struct vcedit_page_buffer {
+ char *data;
+ size_t data_len;
+} vcedit_page_buffer;
+
+typedef struct vcedit_buffer_chain {
+ struct vcedit_buffer_chain *next;
+ struct vcedit_page_buffer buffer;
+} vcedit_buffer_chain;
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