/*
    Copyright (C) 2015 Carl Hetherington <cth@carlh.net>

    This file is part of libdcp.

    libdcp 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.

    libdcp 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 libdcp.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <boost/test/unit_test.hpp>
#include "test.h"
#include "sound_frame.h"
#include "sound_asset.h"
#include "sound_asset_reader.h"
#include "exceptions.h"
#include <sndfile.h>

using boost::shared_ptr;

BOOST_AUTO_TEST_CASE (sound_frame_test)
{
	int const frame_length = 2000;
	int const channels = 6;

	dcp::SoundAsset asset (
		private_test / "TONEPLATES-SMPTE-PLAINTEXT_TST_F_XX-XX_ITL-TD_51-XX_2K_WOE_20111001_WOE_OV/pcm_95734608-5d47-4d3f-bf5f-9e9186b66afa_.mxf"
		);

	shared_ptr<const dcp::SoundFrame> frame = asset.start_read()->get_frame(42);

	BOOST_REQUIRE_EQUAL (frame->size(), channels * frame_length * 3);

	boost::filesystem::path ref_file = private_test / "data" / "frame.wav";
	SF_INFO info;
	info.format = 0;
	SNDFILE* sndfile = sf_open (ref_file.string().c_str(), SFM_READ, &info);
	BOOST_REQUIRE (sndfile);

	int ref_data[frame_length * channels];
	int const read = sf_readf_int (sndfile, ref_data, frame_length);
	BOOST_REQUIRE_EQUAL (read, frame_length);

	uint8_t const * p = frame->data ();
	for (int i = 0; i < (frame_length * channels); ++i) {
		int x = ref_data[i] >> 8;
		if (x < 0) {
			x = (1 << 24) + x;
		}
		int const y = p[0] | (p[1] << 8) | (p[2] << 16);
		BOOST_REQUIRE_EQUAL (x, y);
		p += 3;
	}
}

BOOST_AUTO_TEST_CASE (sound_frame_test2)
{
	BOOST_CHECK_THROW (dcp::SoundAsset("frobozz"), dcp::FileError);

	dcp::SoundAsset asset (
		private_test /
		"TONEPLATES-SMPTE-PLAINTEXT_TST_F_XX-XX_ITL-TD_51-XX_2K_WOE_20111001_WOE_OV/pcm_95734608-5d47-4d3f-bf5f-9e9186b66afa_.mxf"
		);

	BOOST_CHECK_THROW (asset.start_read()->get_frame (99999999), dcp::DCPReadError);
}