Exemple #1
0
static sf_count_t
vorbis_length_aux (SF_PRIVATE * psf)
{	ogg_sync_state osync ;
	ogg_page page ;
	sf_count_t len = 0 ;
	stream_set *processors ;

	processors = create_stream_set () ;
	if (processors == NULL)
		return 0 ;	// out of memory?

	ogg_sync_init (&osync) ;

	while (vorbis_length_get_next_page (psf, &osync, &page))
	{	stream_processor *p = find_stream_processor (processors, &page) ;

		if (!p)
		{	len = 0 ;
			break ;
		} ;

		if (p->isillegal && !p->shownillegal)
		{	p->shownillegal = 1 ;
			/* If it's a new stream, we want to continue processing this page
			** anyway to suppress additional spurious errors
			*/
			if (!p->isnew) continue ;
		} ;

		if (!p->isillegal)
		{	ogg_packet packet ;
			int header = 0 ;

			ogg_stream_pagein (&p->ostream, &page) ;
			if (p->doneheaders < 3)
				header = 1 ;

			while (ogg_stream_packetout (&p->ostream, &packet) > 0)
			{	if (p->doneheaders < 3)
				{	if (vorbis_synthesis_headerin (&p->vinfo, &p->vcomment, &packet) < 0)
						continue ;
					p->doneheaders ++ ;
				} ;
			} ;
			if (!header)
			{	sf_count_t gp = ogg_page_granulepos (&page) ;
				if (gp > 0) p->lastgranulepos = gp ;
			} ;
			if (p->end)
			{	vorbis_end (p, &len) ;
				p->isillegal = 1 ;
			} ;
		} ;
	} ;

	ogg_sync_clear (&osync) ;
	free_stream_set (processors, &len) ;

	return len ;
} /* vorbis_length_aux */
Exemple #2
0
int scan_get_oggfileinfo(char *filename, MP3FILE *pmp3) {
    FILE *file = fopen(filename, "rb");
    ogg_sync_state sync;
    ogg_page page;
    stream_set *processors = create_stream_set();
    int gotpage = 0;
    ogg_int64_t written = 0;
    struct stat psb;

    if(!file) {
        DPRINTF(E_FATAL, L_SCAN,
		"Error opening input file \"%s\": %s\n", filename,
		strerror(errno));
        return -1;
    }

    DPRINTF(E_INF, L_SCAN, "Processing file \"%s\"...\n\n", filename);

    if (!stat(filename, &psb)) {
        pmp3->time_added = psb.st_mtime;
	if (psb.st_ctime < pmp3->time_added) {
            pmp3->time_added = psb.st_ctime;
        }
        pmp3->time_modified = psb.st_mtime;
    } else {
        DPRINTF(E_WARN, L_SCAN, "Error statting: %s\n", strerror(errno));
    }

    ogg_sync_init(&sync);

    while(get_next_page(file, &sync, &page, &written)) {
        stream_processor *p = find_stream_processor(processors, &page);
        gotpage = 1;

        if(!p) {
            DPRINTF(E_FATAL, L_SCAN, "Could not find a processor for stream, bailing\n");
            return -1;
        }

        if(p->isillegal && !p->shownillegal) {
            char *constraint;
            switch(p->constraint_violated) {
                case CONSTRAINT_PAGE_AFTER_EOS:
                    constraint = "Page found for stream after EOS flag";
                    break;
                case CONSTRAINT_MUXING_VIOLATED:
                    constraint = "Ogg muxing constraints violated, new "
                                   "stream before EOS of all previous streams";
                    break;
                default:
                    constraint = "Error unknown.";
            }

            DPRINTF(E_WARN, L_SCAN, 
		    "Warning: illegally placed page(s) for logical stream %d\n"
                   "This indicates a corrupt ogg file: %s.\n", 
                    p->num, constraint);
            p->shownillegal = 1;
            /* If it's a new stream, we want to continue processing this page
             * anyway to suppress additional spurious errors
             */
            if(!p->isnew)
                continue;
        }

        if(p->isnew) {
  	    DPRINTF(E_DBG, L_SCAN, "New logical stream (#%d, serial: %08x): type %s\n", 
	      p->num, p->serial, p->type);
            if(!p->start)
                DPRINTF(E_WARN, L_SCAN,
			"stream start flag not set on stream %d\n",
                        p->num);
        }
        else if(p->start)
            DPRINTF(E_WARN, L_SCAN, "stream start flag found in mid-stream "
                      "on stream %d\n", p->num);

        if(p->seqno++ != ogg_page_pageno(&page)) {
            if(!p->lostseq) 
                DPRINTF(E_WARN, L_SCAN,
			"sequence number gap in stream %d. Got page %ld "
			"when expecting page %ld. Indicates missing data.\n",
			p->num, ogg_page_pageno(&page), p->seqno - 1);
            p->seqno = ogg_page_pageno(&page);
            p->lostseq = 1;
        }
        else
            p->lostseq = 0;

        if(!p->isillegal) {
            p->process_page(p, &page, pmp3);

            if(p->end) {
                if(p->process_end)
                    p->process_end(p, pmp3);
                DPRINTF(E_DBG, L_SCAN, "Logical stream %d ended\n", p->num);
                p->isillegal = 1;
                p->constraint_violated = CONSTRAINT_PAGE_AFTER_EOS;
            }
        }
    }

    free_stream_set(processors);

    ogg_sync_clear(&sync);

    fclose(file);

    if(!gotpage) {
        DPRINTF(E_FATAL, L_SCAN, "No ogg data found in file \"%s\".\n"
                "Input probably not ogg.\n", filename);
        return -1;
    }

    return 0;
}
Exemple #3
0
static void process_file(char *filename) {
    FILE *file = fopen(filename, "rb");
    ogg_sync_state sync;
    ogg_page page;
    stream_set *processors = create_stream_set();
    int gotpage = 0;
    ogg_int64_t written = 0;

    if(!file) {
        error(_("Error opening input file \"%s\": %s\n"), filename,
                    strerror(errno));
        return;
    }

    printf(_("Processing file \"%s\"...\n\n"), filename);

    ogg_sync_init(&sync);

    while(get_next_page(file, &sync, &page, &written)) {
        stream_processor *p = find_stream_processor(processors, &page);
        gotpage = 1;

        if(!p) {
            error(_("Could not find a processor for stream, bailing\n"));
            return;
        }

        if(p->isillegal && !p->shownillegal) {
            char *constraint;
            switch(p->constraint_violated) {
                case CONSTRAINT_PAGE_AFTER_EOS:
                    constraint = _("Page found for stream after EOS flag");
                    break;
                case CONSTRAINT_MUXING_VIOLATED:
                    constraint = _("Ogg muxing constraints violated, new "
                                   "stream before EOS of all previous streams");
                    break;
                default:
                    constraint = _("Error unknown.");
            }

            warn(_("Warning: illegally placed page(s) for logical stream %d\n"
                   "This indicates a corrupt ogg file: %s.\n"), 
                    p->num, constraint);
            p->shownillegal = 1;
            /* If it's a new stream, we want to continue processing this page
             * anyway to suppress additional spurious errors
             */
            if(!p->isnew)
                continue;
        }

        if(p->isnew) {
            info(_("New logical stream (#%d, serial: %08x): type %s\n"), 
                    p->num, p->serial, p->type);
            if(!p->start)
                warn(_("Warning: stream start flag not set on stream %d\n"),
                        p->num);
        }
        else if(p->start)
            warn(_("Warning: stream start flag found in mid-stream "
                      "on stream %d\n"), p->num);

        if(p->seqno++ != ogg_page_pageno(&page)) {
            if(!p->lostseq) 
                warn(_("Warning: sequence number gap in stream %d. Got page "
                       "%ld when expecting page %ld. Indicates missing data.\n"
                       ), p->num, ogg_page_pageno(&page), p->seqno - 1);
            p->seqno = ogg_page_pageno(&page);
            p->lostseq = 1;
        }
        else
            p->lostseq = 0;

        if(!p->isillegal) {
            p->process_page(p, &page);

            if(p->end) {
                if(p->process_end)
                    p->process_end(p);
                info(_("Logical stream %d ended\n"), p->num);
                p->isillegal = 1;
                p->constraint_violated = CONSTRAINT_PAGE_AFTER_EOS;
            }
        }
    }

    if(!gotpage)
        error(_("Error: No ogg data found in file \"%s\".\n"
                "Input probably not ogg.\n"), filename);

    free_stream_set(processors);

    ogg_sync_clear(&sync);

    fclose(file);
}