libschroedinger.h 2.17 KB
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/*
 * Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
 *
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 * This file is part of Libav.
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 *
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 * Libav is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
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 * Libav is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
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 * License along with Libav; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/**
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* @file
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* data structures common to libschroedinger decoder and encoder
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*/

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#ifndef AVCODEC_LIBSCHROEDINGER_H
#define AVCODEC_LIBSCHROEDINGER_H
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#include <schroedinger/schrobitstream.h>
#include <schroedinger/schroframe.h>
#include "avcodec.h"

static const struct {
    enum PixelFormat  ff_pix_fmt;
    SchroChromaFormat schro_pix_fmt;
    SchroFrameFormat  schro_frame_fmt;
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} schro_pixel_format_map[] = {
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    { PIX_FMT_YUV420P, SCHRO_CHROMA_420, SCHRO_FRAME_FORMAT_U8_420 },
    { PIX_FMT_YUV422P, SCHRO_CHROMA_422, SCHRO_FRAME_FORMAT_U8_422 },
    { PIX_FMT_YUV444P, SCHRO_CHROMA_444, SCHRO_FRAME_FORMAT_U8_444 },
};

/**
* Returns the video format preset matching the input video dimensions and
* time base.
*/
SchroVideoFormatEnum ff_get_schro_video_format_preset (AVCodecContext *avccontext);

/**
* Sets the Schroedinger frame format corresponding to the Schro chroma format
* passed. Returns 0 on success, -1 on failure.
*/
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int ff_get_schro_frame_format(SchroChromaFormat schro_chroma_fmt,
                              SchroFrameFormat  *schro_frame_fmt);
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/**
* Create a Schro frame based on the dimensions and frame format
* passed. Returns a pointer to a frame on success, NULL on failure.
*/
SchroFrame *ff_create_schro_frame(AVCodecContext *avccontext,
                                  SchroFrameFormat schro_frame_fmt);

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#endif /* AVCODEC_LIBSCHROEDINGER_H */