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/*
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 * Copyright (c) 2022 Omar Polo <op@openbsd.org>
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/uio.h>
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#include <err.h>
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#include <event.h>
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#include <fcntl.h>
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#include <math.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <sndio.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <imsg.h>
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#include <unistd.h>
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#include <vorbis/codec.h>
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#include <vorbis/vorbisfile.h>
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#include "amused.h"
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#ifndef nitems
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#define nitems(x) (sizeof(x)/sizeof(x[0]))
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#endif
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void
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play_oggvorbis(int fd)
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{
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	static uint8_t pcmout[4096];
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	FILE *f;
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	OggVorbis_File vf;
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	int current_section, eof = 0;
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	if ((f = fdopen(fd, "r")) == NULL)
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		err(1, "fdopen");
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	if (ov_open_callbacks(f, &vf, NULL, 0, OV_CALLBACKS_NOCLOSE) < 0)
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		errx(1, "input is not an Ogg bitstream");
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	{
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		char **ptr;
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		vorbis_info *vi;
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		vi = ov_info(&vf, -1);
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		for (ptr = ov_comment(&vf, -1)->user_comments; *ptr; ++ptr)
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			printf("%s\n", *ptr);
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		printf("bitstream is %d channel, %ldHz\n", vi->channels, vi->rate);
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		if (player_setup(vi->rate, vi->channels) == -1)
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			err(1, "player_setrate");
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	}
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	while (!eof) {
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		long ret;
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		if (player_shouldstop())
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			break;
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		ret = ov_read(&vf, pcmout, sizeof(pcmout), 0, 2, 1,
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		    &current_section);
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		if (ret == 0)
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			eof = 1;
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		else if (ret < 0)
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			warnx("non-fatal error in the stream %ld", ret);
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		else {
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			/* TODO: deal with sample rate changes */
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			sio_write(hdl, pcmout, ret);
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		}
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	}
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	ov_clear(&vf);
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}