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82 lines
2.9 KiB
82 lines
2.9 KiB
/*****************************************************************************
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* encoder.h :
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*****************************************************************************
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* Copyright (C) 2002 VideoLAN
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* $Id: encoder.h,v 1.1 2003/01/22 10:41:57 fenrir Exp $
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*
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* Authors: Laurent Aimar <fenrir@via.ecp.fr>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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#ifndef _ENCODER_H
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#define _ENCODER_H
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typedef struct encoder_sys_t encoder_sys_t;
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typedef struct video_encoder_s
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{
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VLC_COMMON_MEMBERS
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module_t * p_module;
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vlc_fourcc_t i_codec; /* in */
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vlc_fourcc_t i_chroma; /* in/out */
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int i_width; /* in/out */
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int i_height; /* in/out */
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int i_aspect; /* in/out */
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size_t i_buffer_size; /* in/out */
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encoder_sys_t *p_sys;
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int (*pf_init) ( struct video_encoder_s *p_enc );
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int (*pf_encode) ( struct video_encoder_s *p_enc, picture_t *p_pic, void *p_data, size_t *pi_data );
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void (*pf_end) ( struct video_encoder_s *p_enc );
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} video_encoder_t;
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/*
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* Video decoder:
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*
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* = at loading a video decoder must
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* * see if i_codec is supporte, if not => failling
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* * modify i_width/i_height/i_chroma/i_aspect if required (for example,
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* if a video codec required %8 size)
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* * init/check the library
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* * set pf_init, pf_encode and pf_end
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* * set i_buffer_size to the max buffer size required to output a single frame
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*
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* = pf_init must
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* * start encoding processing
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* * doesn't change any parameters (i_chroma/i_width/i_height/i_aspect)
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* * check for passed parameters (no one for the moment)
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*
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* = pf_encode must
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* * encode a single frame
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* * doesn't change any parameters (...)
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* * doesn't look for passed paramters
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*
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* = pf_end must
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* * end the encoding process
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* * revert all that pf_init (and pf_encode) has done (memory...)
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*
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* = at unloading, a video decoder must revert all that was done while loading
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*
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* XXX: pf_init/pf_end could be called multiple time without the plugin unloaded.
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* XXX: all memory allocated by video encoder MUST be unallocated by video encoder
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*
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*/
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#endif
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