libavcodec/libschroedinger.h

   1 /*
   2  * Copyright (c) 2008 BBC, Anuradha Suraparaju <asuraparaju at gmail dot com >
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 /**
  22 * @file libavcodec/libschroedinger.h
  23 * data structures common to libschroedingerdec.c and libschroedingerenc.c
  24 */
  25
  26 #ifndef AVCODEC_LIBSCHROEDINGER_H
  27 #define AVCODEC_LIBSCHROEDINGER_H
  28
  29 #include <schroedinger/schrobitstream.h>
  30 #include <schroedinger/schroframe.h>
  31 #include "avcodec.h"
  32
  33 static const struct {
  34     enum PixelFormat  ff_pix_fmt;
  35     SchroChromaFormat schro_pix_fmt;
  36     SchroFrameFormat  schro_frame_fmt;
  37 } ffmpeg_schro_pixel_format_map[] = {
  38     { PIX_FMT_YUV420P, SCHRO_CHROMA_420, SCHRO_FRAME_FORMAT_U8_420 },
  39     { PIX_FMT_YUV422P, SCHRO_CHROMA_422, SCHRO_FRAME_FORMAT_U8_422 },
  40     { PIX_FMT_YUV444P, SCHRO_CHROMA_444, SCHRO_FRAME_FORMAT_U8_444 },
  41 };
  42
  43 /**
  44 * Returns the video format preset matching the input video dimensions and
  45 * time base.
  46 */
  47 SchroVideoFormatEnum ff_get_schro_video_format_preset (AVCodecContext *avccontext);
  48
  49 /**
  50 * Sets the Schroedinger frame format corresponding to the Schro chroma format
  51 * passed. Returns 0 on success, -1 on failure.
  52 */
  53 int ff_get_schro_frame_format(SchroChromaFormat schro_chroma_fmt,
  54                               SchroFrameFormat  *schro_frame_fmt);
  55
  56 /**
  57 * Create a Schro frame based on the dimensions and frame format
  58 * passed. Returns a pointer to a frame on success, NULL on failure.
  59 */
  60 SchroFrame *ff_create_schro_frame(AVCodecContext *avccontext,
  61                                   SchroFrameFormat schro_frame_fmt);
  62
  63 #endif /* AVCODEC_LIBSCHROEDINGER_H */