/*****************************************************************************
- * vlc_codec.h: codec related structures
+ * vlc_codec.h: Definition of the decoder and encoder structures
*****************************************************************************
- * Copyright (C) 1999-2003 VideoLAN
- * $Id: vlc_codec.h,v 1.4 2003/11/16 21:07:30 gbazin Exp $
+ * Copyright (C) 1999-2003 the VideoLAN team
+ * $Id$
*
* Authors: Gildas Bazin <gbazin@netcourrier.com>
*
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#ifndef _VLC_CODEC_H
-#define _VLC_CODEC_H 1
-#include "ninput.h"
+#ifndef VLC_CODEC_H
+#define VLC_CODEC_H 1
+
+#include <vlc_block.h>
+#include <vlc_es.h>
+#include <vlc_picture.h>
+#include <vlc_subpicture.h>
/**
* \file
* @{
*/
+/*
+ * BIG FAT WARNING : the code relies in the first 4 members of filter_t
+ * and decoder_t to be the same, so if you have anything to add, do it
+ * at the end of the structure.
+ */
struct decoder_t
{
VLC_COMMON_MEMBERS
module_t * p_module;
decoder_sys_t * p_sys;
- /* Deprecated */
- int ( * pf_decode )( decoder_t *, block_t * );
- decoder_fifo_t * p_fifo;
- int ( * pf_run ) ( decoder_fifo_t * );
- /* End deprecated */
-
- picture_t * ( * pf_decode_video )( decoder_t *, block_t ** );
- aout_buffer_t * ( * pf_decode_audio )( decoder_t *, block_t ** );
- void ( * pf_decode_sub) ( decoder_t *, block_t ** );
- block_t * ( * pf_packetize ) ( decoder_t *, block_t ** );
-
/* Input format ie from demuxer (XXX: a lot of field could be invalid) */
es_format_t fmt_in;
/* Output format of decoder/packetizer */
es_format_t fmt_out;
+ /* Some decoders only accept packetized data (ie. not truncated) */
+ bool b_need_packetized;
+
+ /* Tell the decoder if it is allowed to drop frames */
+ bool b_pace_control;
+
+ /* */
+ picture_t * ( * pf_decode_video )( decoder_t *, block_t ** );
+ aout_buffer_t * ( * pf_decode_audio )( decoder_t *, block_t ** );
+ subpicture_t * ( * pf_decode_sub) ( decoder_t *, block_t ** );
+ block_t * ( * pf_packetize ) ( decoder_t *, block_t ** );
+
+ /* Closed Caption (CEA 608/708) extraction.
+ * If set, it *may* be called after pf_decode_video/pf_packetize
+ * returned data. It should return CC for the pictures returned by the
+ * last pf_packetize/pf_decode_video call only,
+ * pb_present will be used to known which cc channel are present (but
+ * globaly, not necessary for the current packet */
+ block_t * ( * pf_get_cc ) ( decoder_t *, bool pb_present[4] );
+
+ /* Meta data at codec level
+ * The decoder owner set it back to NULL once it has retreived what it needs.
+ * The decoder owner is responsible of its release except when you overwrite it.
+ */
+ vlc_meta_t *p_description;
+
/*
- * Buffers allocation
+ * Owner fields
+ * XXX You MUST not use them directly.
*/
- /* Audio output callbacks */
- aout_buffer_t * ( * pf_aout_buffer_new) ( decoder_t *, int );
- void ( * pf_aout_buffer_del) ( decoder_t *, aout_buffer_t * );
+ /* Video output callbacks
+ * XXX use decoder_NewPicture/decoder_DeletePicture
+ * and decoder_LinkPicture/decoder_UnlinkPicture */
+ picture_t *(*pf_vout_buffer_new)( decoder_t * );
+ void (*pf_vout_buffer_del)( decoder_t *, picture_t * );
+ void (*pf_picture_link) ( decoder_t *, picture_t * );
+ void (*pf_picture_unlink) ( decoder_t *, picture_t * );
- /* Video output callbacks */
- picture_t * ( * pf_vout_buffer_new) ( decoder_t * );
- void ( * pf_vout_buffer_del) ( decoder_t *, picture_t * );
+ /* Audio output callbacks
+ * XXX use decoder_NewAudioBuffer/decoder_DeleteAudioBuffer */
+ aout_buffer_t *(*pf_aout_buffer_new)( decoder_t *, int );
+ void (*pf_aout_buffer_del)( decoder_t *, aout_buffer_t * );
+ /* SPU output callbacks
+ * XXX use decoder_NewSubpicture and decoder_DeleteSubpicture */
+ subpicture_t *(*pf_spu_buffer_new)( decoder_t *, const subpicture_updater_t * );
+ void (*pf_spu_buffer_del)( decoder_t *, subpicture_t * );
+
+ /* Input attachments
+ * XXX use decoder_GetInputAttachments */
+ int (*pf_get_attachments)( decoder_t *p_dec, input_attachment_t ***ppp_attachment, int *pi_attachment );
+
+ /* Display date
+ * XXX use decoder_GetDisplayDate */
+ mtime_t (*pf_get_display_date)( decoder_t *, mtime_t );
+
+ /* Display rate
+ * XXX use decoder_GetDisplayRate */
+ int (*pf_get_display_rate)( decoder_t * );
/* Private structure for the owner of the decoder */
decoder_owner_sys_t *p_owner;
+
+ bool b_error;
};
/**
*/
/**
- * \defgroup decoder Encoder
+ * \defgroup encoder Encoder
*
* The structure describing a Encoder
*
module_t * p_module;
encoder_sys_t * p_sys;
- block_t * ( * pf_header )( encoder_t * );
- block_t * ( * pf_encode_video )( encoder_t *, picture_t * );
- block_t * ( * pf_encode_audio )( encoder_t *, aout_buffer_t * );
-
/* Properties of the input data fed to the encoder */
es_format_t fmt_in;
/* Properties of the output of the encoder */
es_format_t fmt_out;
- /* FIXME: move these to the ffmpeg encoder */
- int i_key_int;
- int i_b_frames;
- int i_vtolerance;
- int i_qmin;
- int i_qmax;
- int i_hq;
+ block_t * ( * pf_encode_video )( encoder_t *, picture_t * );
+ block_t * ( * pf_encode_audio )( encoder_t *, aout_buffer_t * );
+ block_t * ( * pf_encode_sub )( encoder_t *, subpicture_t * );
+
+ /* Common encoder options */
+ int i_threads; /* Number of threads to use during encoding */
+ int i_iframes; /* One I frame per i_iframes */
+ int i_bframes; /* One B frame per i_bframes */
+ int i_tolerance; /* Bitrate tolerance */
+ /* Encoder config */
+ config_chain_t *p_cfg;
};
/**
* @}
*/
+
+/**
+ * This function will return a new picture usable by a decoder as an output
+ * buffer. You have to release it using decoder_DeletePicture or by returning
+ * it to the caller as a pf_decode_video return value.
+ */
+VLC_EXPORT( picture_t *, decoder_NewPicture, ( decoder_t * ) LIBVLC_USED );
+
+/**
+ * This function will release a picture create by decoder_NewPicture.
+ */
+VLC_EXPORT( void, decoder_DeletePicture, ( decoder_t *, picture_t *p_picture ) );
+
+/**
+ * This function will increase the picture reference count.
+ * (picture_Hold is not usable.)
+ */
+VLC_EXPORT( void, decoder_LinkPicture, ( decoder_t *, picture_t * ) );
+
+/**
+ * This function will decrease the picture reference count.
+ * (picture_Release is not usable.)
+ */
+VLC_EXPORT( void, decoder_UnlinkPicture, ( decoder_t *, picture_t * ) );
+
+/**
+ * This function will return a new audio buffer usable by a decoder as an
+ * output buffer. You have to release it using decoder_DeleteAudioBuffer
+ * or by returning it to the caller as a pf_decode_audio return value.
+ */
+VLC_EXPORT( aout_buffer_t *, decoder_NewAudioBuffer, ( decoder_t *, int i_size ) LIBVLC_USED );
+
+/**
+ * This function will release a audio buffer created by decoder_NewAudioBuffer.
+ */
+VLC_EXPORT( void, decoder_DeleteAudioBuffer, ( decoder_t *, aout_buffer_t *p_buffer ) );
+
+/**
+ * This function will return a new subpicture usable by a decoder as an output
+ * buffer. You have to release it using decoder_DeleteSubpicture or by returning
+ * it to the caller as a pf_decode_sub return value.
+ */
+VLC_EXPORT( subpicture_t *, decoder_NewSubpicture, ( decoder_t *, const subpicture_updater_t * ) LIBVLC_USED );
+
+/**
+ * This function will release a subpicture created by decoder_NewSubicture.
+ */
+VLC_EXPORT( void, decoder_DeleteSubpicture, ( decoder_t *, subpicture_t *p_subpicture ) );
+
+/**
+ * This function gives all input attachments at once.
+ *
+ * You MUST release the returned values
+ */
+VLC_EXPORT( int, decoder_GetInputAttachments, ( decoder_t *, input_attachment_t ***ppp_attachment, int *pi_attachment ) );
+
+/**
+ * This function converts a decoder timestamp into a display date comparable
+ * to mdate().
+ * You MUST use it *only* for gathering statistics about speed.
+ */
+VLC_EXPORT( mtime_t, decoder_GetDisplayDate, ( decoder_t *, mtime_t ) LIBVLC_USED );
+
+/**
+ * This function returns the current input rate.
+ * You MUST use it *only* for gathering statistics about speed.
+ */
+VLC_EXPORT( int, decoder_GetDisplayRate, ( decoder_t * ) LIBVLC_USED );
+
#endif /* _VLC_CODEC_H */
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