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gstreamer/gst-libs/gst/riff/riff.h

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s/Gnome-Streamer/GStreamer/ Original commit message from CVS: s/Gnome-Streamer/GStreamer/
2002-03-20 21:45:04 +00:00
/* GStreamer
made changes everywhere to accomodate for the headers being in <gst/(lib)/...> we'll need to conclude this fast becau... Original commit message from CVS: made changes everywhere to accomodate for the headers being in <gst/(lib)/...> we'll need to conclude this fast because we will also need to change stuff in core real soon for the libs in order to fix everything and I can't do it right now because I disabled all of the plugins here ;)
2001-12-23 12:18:18 +00:00
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_RIFF_H__
#define __GST_RIFF_H__
#include <gst/gst.h>
typedef enum {
GST_RIFF_OK = 0,
GST_RIFF_ENOTRIFF = -1,
GST_RIFF_EINVAL = -2,
GST_RIFF_ENOMEM = -3
} GstRiffReturn;
/* states */
typedef enum {
GST_RIFF_STATE_INITIAL = 0,
GST_RIFF_STATE_HASAVIH = 1,
GST_RIFF_STATE_HASSTRH = 2,
GST_RIFF_STATE_HASSTRF = 3,
GST_RIFF_STATE_MOVI = 4
} GstRiffParserState;
#define MAKE_FOUR_CC(a,b,c,d) ( ((guint32)a) | (((guint32)b)<< 8) | \
((guint32)c)<<16 | (((guint32)d)<<24) )
/* RIFF types */
#define GST_RIFF_RIFF_WAVE MAKE_FOUR_CC('W','A','V','E')
#define GST_RIFF_RIFF_AVI MAKE_FOUR_CC('A','V','I',' ')
/* tags */
#define GST_RIFF_TAG_RIFF MAKE_FOUR_CC('R','I','F','F')
#define GST_RIFF_TAG_RIFX MAKE_FOUR_CC('R','I','F','X')
#define GST_RIFF_TAG_LIST MAKE_FOUR_CC('L','I','S','T')
#define GST_RIFF_TAG_avih MAKE_FOUR_CC('a','v','i','h')
#define GST_RIFF_TAG_strd MAKE_FOUR_CC('s','t','r','d')
#define GST_RIFF_TAG_strh MAKE_FOUR_CC('s','t','r','h')
#define GST_RIFF_TAG_strf MAKE_FOUR_CC('s','t','r','f')
#define GST_RIFF_TAG_vedt MAKE_FOUR_CC('v','e','d','t')
#define GST_RIFF_TAG_JUNK MAKE_FOUR_CC('J','U','N','K')
#define GST_RIFF_TAG_idx1 MAKE_FOUR_CC('i','d','x','1')
/* WAV stuff */
#define GST_RIFF_TAG_fmt MAKE_FOUR_CC('f','m','t',' ')
#define GST_RIFF_TAG_data MAKE_FOUR_CC('d','a','t','a')
/* LIST types */
#define GST_RIFF_LIST_movi MAKE_FOUR_CC('m','o','v','i')
#define GST_RIFF_LIST_hdrl MAKE_FOUR_CC('h','d','r','l')
#define GST_RIFF_LIST_strl MAKE_FOUR_CC('s','t','r','l')
/* fcc types */
#define GST_RIFF_FCC_vids MAKE_FOUR_CC('v','i','d','s')
#define GST_RIFF_FCC_auds MAKE_FOUR_CC('a','u','d','s')
#define GST_RIFF_FCC_pads MAKE_FOUR_CC('p','a','d','s')
#define GST_RIFF_FCC_txts MAKE_FOUR_CC('t','x','t','s')
#define GST_RIFF_FCC_vidc MAKE_FOUR_CC('v','i','d','c')
#define GST_RIFF_FCC_iavs MAKE_FOUR_CC('i','a','v','s')
/* fcc handlers */
#define GST_RIFF_FCCH_RLE MAKE_FOUR_CC('R','L','E',' ')
#define GST_RIFF_FCCH_msvc MAKE_FOUR_CC('m','s','v','c')
#define GST_RIFF_FCCH_MSVC MAKE_FOUR_CC('M','S','V','C')
/*********Chunk Names***************/
#define GST_RIFF_FF00 MAKE_FOUR_CC(0xFF,0xFF,0x00,0x00)
#define GST_RIFF_00 MAKE_FOUR_CC( '0', '0',0x00,0x00)
#define GST_RIFF_01 MAKE_FOUR_CC( '0', '1',0x00,0x00)
#define GST_RIFF_02 MAKE_FOUR_CC( '0', '2',0x00,0x00)
#define GST_RIFF_03 MAKE_FOUR_CC( '0', '3',0x00,0x00)
#define GST_RIFF_04 MAKE_FOUR_CC( '0', '4',0x00,0x00)
#define GST_RIFF_05 MAKE_FOUR_CC( '0', '5',0x00,0x00)
#define GST_RIFF_06 MAKE_FOUR_CC( '0', '6',0x00,0x00)
#define GST_RIFF_07 MAKE_FOUR_CC( '0', '7',0x00,0x00)
#define GST_RIFF_00pc MAKE_FOUR_CC( '0', '0', 'p', 'c')
#define GST_RIFF_01pc MAKE_FOUR_CC( '0', '1', 'p', 'c')
#define GST_RIFF_00dc MAKE_FOUR_CC( '0', '0', 'd', 'c')
#define GST_RIFF_00dx MAKE_FOUR_CC( '0', '0', 'd', 'x')
#define GST_RIFF_00db MAKE_FOUR_CC( '0', '0', 'd', 'b')
#define GST_RIFF_00xx MAKE_FOUR_CC( '0', '0', 'x', 'x')
#define GST_RIFF_00id MAKE_FOUR_CC( '0', '0', 'i', 'd')
#define GST_RIFF_00rt MAKE_FOUR_CC( '0', '0', 'r', 't')
#define GST_RIFF_0021 MAKE_FOUR_CC( '0', '0', '2', '1')
#define GST_RIFF_00iv MAKE_FOUR_CC( '0', '0', 'i', 'v')
#define GST_RIFF_0031 MAKE_FOUR_CC( '0', '0', '3', '1')
#define GST_RIFF_0032 MAKE_FOUR_CC( '0', '0', '3', '2')
#define GST_RIFF_00vc MAKE_FOUR_CC( '0', '0', 'v', 'c')
#define GST_RIFF_00xm MAKE_FOUR_CC( '0', '0', 'x', 'm')
#define GST_RIFF_01wb MAKE_FOUR_CC( '0', '1', 'w', 'b')
#define GST_RIFF_01dc MAKE_FOUR_CC( '0', '1', 'd', 'c')
#define GST_RIFF_00__ MAKE_FOUR_CC( '0', '0', '_', '_')
/*********VIDEO CODECS**************/
#define GST_RIFF_cram MAKE_FOUR_CC( 'c', 'r', 'a', 'm')
#define GST_RIFF_CRAM MAKE_FOUR_CC( 'C', 'R', 'A', 'M')
#define GST_RIFF_wham MAKE_FOUR_CC( 'w', 'h', 'a', 'm')
#define GST_RIFF_WHAM MAKE_FOUR_CC( 'W', 'H', 'A', 'M')
#define GST_RIFF_rgb MAKE_FOUR_CC(0x00,0x00,0x00,0x00)
#define GST_RIFF_RGB MAKE_FOUR_CC( 'R', 'G', 'B', ' ')
#define GST_RIFF_rle8 MAKE_FOUR_CC(0x01,0x00,0x00,0x00)
#define GST_RIFF_RLE8 MAKE_FOUR_CC( 'R', 'L', 'E', '8')
#define GST_RIFF_rle4 MAKE_FOUR_CC(0x02,0x00,0x00,0x00)
#define GST_RIFF_RLE4 MAKE_FOUR_CC( 'R', 'L', 'E', '4')
#define GST_RIFF_none MAKE_FOUR_CC(0x00,0x00,0xFF,0xFF)
#define GST_RIFF_NONE MAKE_FOUR_CC( 'N', 'O', 'N', 'E')
#define GST_RIFF_pack MAKE_FOUR_CC(0x01,0x00,0xFF,0xFF)
#define GST_RIFF_PACK MAKE_FOUR_CC( 'P', 'A', 'C', 'K')
#define GST_RIFF_tran MAKE_FOUR_CC(0x02,0x00,0xFF,0xFF)
#define GST_RIFF_TRAN MAKE_FOUR_CC( 'T', 'R', 'A', 'N')
#define GST_RIFF_ccc MAKE_FOUR_CC(0x03,0x00,0xFF,0xFF)
#define GST_RIFF_CCC MAKE_FOUR_CC( 'C', 'C', 'C', ' ')
#define GST_RIFF_cyuv MAKE_FOUR_CC( 'c', 'y', 'u', 'v')
#define GST_RIFF_CYUV MAKE_FOUR_CC( 'C', 'Y', 'U', 'V')
#define GST_RIFF_jpeg MAKE_FOUR_CC(0x04,0x00,0xFF,0xFF)
#define GST_RIFF_JPEG MAKE_FOUR_CC( 'J', 'P', 'E', 'G')
#define GST_RIFF_MJPG MAKE_FOUR_CC( 'M', 'J', 'P', 'G')
#define GST_RIFF_mJPG MAKE_FOUR_CC( 'm', 'J', 'P', 'G')
#define GST_RIFF_IJPG MAKE_FOUR_CC( 'I', 'J', 'P', 'G')
#define GST_RIFF_rt21 MAKE_FOUR_CC( 'r', 't', '2', '1')
#define GST_RIFF_RT21 MAKE_FOUR_CC( 'R', 'T', '2', '1')
#define GST_RIFF_iv31 MAKE_FOUR_CC( 'i', 'v', '3', '1')
#define GST_RIFF_IV31 MAKE_FOUR_CC( 'I', 'V', '3', '1')
#define GST_RIFF_iv32 MAKE_FOUR_CC( 'i', 'v', '3', '2')
#define GST_RIFF_IV32 MAKE_FOUR_CC( 'I', 'V', '3', '2')
#define GST_RIFF_iv41 MAKE_FOUR_CC( 'i', 'v', '4', '1')
#define GST_RIFF_IV41 MAKE_FOUR_CC( 'I', 'V', '4', '1')
#define GST_RIFF_iv50 MAKE_FOUR_CC( 'i', 'v', '5', '0')
#define GST_RIFF_IV50 MAKE_FOUR_CC( 'I', 'V', '5', '0')
#define GST_RIFF_cvid MAKE_FOUR_CC( 'c', 'v', 'i', 'd')
#define GST_RIFF_CVID MAKE_FOUR_CC( 'C', 'V', 'I', 'D')
#define GST_RIFF_ULTI MAKE_FOUR_CC( 'U', 'L', 'T', 'I')
#define GST_RIFF_ulti MAKE_FOUR_CC( 'u', 'l', 't', 'i')
#define GST_RIFF_YUV9 MAKE_FOUR_CC( 'Y', 'V', 'U', '9')
#define GST_RIFF_YVU9 MAKE_FOUR_CC( 'Y', 'U', 'V', '9')
#define GST_RIFF_XMPG MAKE_FOUR_CC( 'X', 'M', 'P', 'G')
#define GST_RIFF_xmpg MAKE_FOUR_CC( 'x', 'm', 'p', 'g')
#define GST_RIFF_VDOW MAKE_FOUR_CC( 'V', 'D', 'O', 'W')
#define GST_RIFF_MVI1 MAKE_FOUR_CC( 'M', 'V', 'I', '1')
#define GST_RIFF_v422 MAKE_FOUR_CC( 'v', '4', '2', '2')
#define GST_RIFF_V422 MAKE_FOUR_CC( 'V', '4', '2', '2')
#define GST_RIFF_mvi1 MAKE_FOUR_CC( 'm', 'v', 'i', '1')
#define GST_RIFF_MPIX MAKE_FOUR_CC(0x04,0x00, 'i', '1') /* MotionPixels munged their id */
#define GST_RIFF_AURA MAKE_FOUR_CC( 'A', 'U', 'R', 'A')
#define GST_RIFF_DMB1 MAKE_FOUR_CC( 'D', 'M', 'B', '1')
#define GST_RIFF_dmb1 MAKE_FOUR_CC( 'd', 'm', 'b', '1')
#define GST_RIFF_BW10 MAKE_FOUR_CC( 'B', 'W', '1', '0')
#define GST_RIFF_bw10 MAKE_FOUR_CC( 'b', 'w', '1', '0')
#define GST_RIFF_yuy2 MAKE_FOUR_CC( 'y', 'u', 'y', '2')
#define GST_RIFF_YUY2 MAKE_FOUR_CC( 'Y', 'U', 'Y', '2')
#define GST_RIFF_YUV8 MAKE_FOUR_CC( 'Y', 'U', 'V', '8')
#define GST_RIFF_WINX MAKE_FOUR_CC( 'W', 'I', 'N', 'X')
#define GST_RIFF_WPY2 MAKE_FOUR_CC( 'W', 'P', 'Y', '2')
#define GST_RIFF_m263 MAKE_FOUR_CC( 'm', '2', '6', '3')
#define GST_RIFF_M263 MAKE_FOUR_CC( 'M', '2', '6', '3')
#define GST_RIFF_Q1_0 MAKE_FOUR_CC( 'Q', '1',0x2e, '0')
#define GST_RIFF_SFMC MAKE_FOUR_CC( 'S', 'F', 'M', 'C')
#define GST_RIFF_y41p MAKE_FOUR_CC( 'y', '4', '1', 'p')
#define GST_RIFF_Y41P MAKE_FOUR_CC( 'Y', '4', '1', 'P')
#define GST_RIFF_yv12 MAKE_FOUR_CC( 'y', 'v', '1', '2')
#define GST_RIFF_YV12 MAKE_FOUR_CC( 'Y', 'V', '1', '2')
#define GST_RIFF_vixl MAKE_FOUR_CC( 'v', 'i', 'x', 'l')
#define GST_RIFF_VIXL MAKE_FOUR_CC( 'V', 'I', 'X', 'L')
#define GST_RIFF_iyuv MAKE_FOUR_CC( 'i', 'y', 'u', 'v')
#define GST_RIFF_IYUV MAKE_FOUR_CC( 'I', 'Y', 'U', 'V')
#define GST_RIFF_i420 MAKE_FOUR_CC( 'i', '4', '2', '0')
#define GST_RIFF_I420 MAKE_FOUR_CC( 'I', '4', '2', '0')
#define GST_RIFF_vyuy MAKE_FOUR_CC( 'v', 'y', 'u', 'y')
#define GST_RIFF_VYUY MAKE_FOUR_CC( 'V', 'Y', 'U', 'Y')
#define GST_RIFF_DIV3 MAKE_FOUR_CC( 'D', 'I', 'V', '3')
#define GST_RIFF_rpza MAKE_FOUR_CC( 'r', 'p', 'z', 'a')
/* And this here's the mistakes that need to be supported */
#define GST_RIFF_azpr MAKE_FOUR_CC( 'a', 'z', 'p', 'r') /* recognize Apple's rpza mangled? */
/*********** FND in MJPG **********/
#define GST_RIFF_ISFT MAKE_FOUR_CC( 'I', 'S', 'F', 'T')
#define GST_RIFF_IDIT MAKE_FOUR_CC( 'I', 'D', 'I', 'T')
#define GST_RIFF_00AM MAKE_FOUR_CC( '0', '0', 'A', 'M')
#define GST_RIFF_DISP MAKE_FOUR_CC( 'D', 'I', 'S', 'P')
#define GST_RIFF_ISBJ MAKE_FOUR_CC( 'I', 'S', 'B', 'J')
#define GST_RIFF_rec MAKE_FOUR_CC( 'r', 'e', 'c', ' ')
/* common data structures */
struct _gst_riff_avih {
guint32 us_frame; /* microsec per frame */
guint32 max_bps; /* byte/s overall */
guint32 pad_gran; /* pad_gran (???) */
guint32 flags;
/* flags values */
#define GST_RIFF_AVIH_HASINDEX 0x00000010 /* has idx1 chunk */
#define GST_RIFF_AVIH_MUSTUSEINDEX 0x00000020 /* must use idx1 chunk to determine order */
#define GST_RIFF_AVIH_ISINTERLEAVED 0x00000100 /* AVI file is interleaved */
#define GST_RIFF_AVIH_WASCAPTUREFILE 0x00010000 /* specially allocated used for capturing real time video */
#define GST_RIFF_AVIH_COPYRIGHTED 0x00020000 /* contains copyrighted data */
guint32 tot_frames; /* # of frames (all) */
guint32 init_frames; /* initial frames (???) */
guint32 streams;
guint32 bufsize; /* suggested buffer size */
guint32 width;
guint32 height;
guint32 scale;
guint32 rate;
guint32 start;
guint32 length;
};
struct _gst_riff_strh {
guint32 type; /* stream type */
guint32 fcc_handler; /* fcc_handler */
guint32 flags;
/* flags values */
#define GST_RIFF_STRH_DISABLED 0x000000001
#define GST_RIFF_STRH_VIDEOPALCHANGES 0x000010000
guint32 priority;
guint32 init_frames; /* initial frames (???) */
guint32 scale;
guint32 rate;
guint32 start;
guint32 length;
guint32 bufsize; /* suggested buffer size */
guint32 quality;
guint32 samplesize;
/* XXX 16 bytes ? */
};
struct _gst_riff_strf_vids { /* == BitMapInfoHeader */
guint32 size;
guint32 width;
guint32 height;
guint16 planes;
guint16 bit_cnt;
guint32 compression;
guint32 image_size;
guint32 xpels_meter;
guint32 ypels_meter;
guint32 num_colors; /* used colors */
guint32 imp_colors; /* important colors */
/* may be more for some codecs */
};
struct _gst_riff_strf_auds { /* == WaveHeader (?) */
guint16 format;
/**** from public Microsoft RIFF docs ******/
#define GST_RIFF_WAVE_FORMAT_UNKNOWN (0x0000)
#define GST_RIFF_WAVE_FORMAT_PCM (0x0001)
#define GST_RIFF_WAVE_FORMAT_ADPCM (0x0002)
#define GST_RIFF_WAVE_FORMAT_IBM_CVSD (0x0005)
#define GST_RIFF_WAVE_FORMAT_ALAW (0x0006)
#define GST_RIFF_WAVE_FORMAT_MULAW (0x0007)
#define GST_RIFF_WAVE_FORMAT_OKI_ADPCM (0x0010)
#define GST_RIFF_WAVE_FORMAT_DVI_ADPCM (0x0011)
#define GST_RIFF_WAVE_FORMAT_DIGISTD (0x0015)
#define GST_RIFF_WAVE_FORMAT_DIGIFIX (0x0016)
#define GST_RIFF_WAVE_FORMAT_YAMAHA_ADPCM (0x0020)
#define GST_RIFF_WAVE_FORMAT_DSP_TRUESPEECH (0x0022)
#define GST_RIFF_WAVE_FORMAT_GSM610 (0x0031)
#define GST_RIFF_WAVE_FORMAT_MSN (0x0032)
#define GST_RIFF_WAVE_FORMAT_MPEGL12 (0x0050)
#define GST_RIFF_WAVE_FORMAT_MPEGL3 (0x0055)
#define GST_RIFF_IBM_FORMAT_MULAW (0x0101)
#define GST_RIFF_IBM_FORMAT_ALAW (0x0102)
#define GST_RIFF_IBM_FORMAT_ADPCM (0x0103)
#define GST_RIFF_WAVE_FORMAT_DIVX (0x0160)
#define GST_RIFF_WAVE_FORMAT_divx (0x0161)
Add ogg/vorbis support for avi files Original commit message from CVS: Add ogg/vorbis support for avi files
2002-10-27 18:08:43 +00:00
#define GST_RIFF_WAVE_FORMAT_VORBIS1 (0x674f)
#define GST_RIFF_WAVE_FORMAT_VORBIS2 (0x6750)
#define GST_RIFF_WAVE_FORMAT_VORBIS3 (0x6751)
#define GST_RIFF_WAVE_FORMAT_VORBIS1PLUS (0x676f)
#define GST_RIFF_WAVE_FORMAT_VORBIS2PLUS (0x6770)
#define GST_RIFF_WAVE_FORMAT_VORBIS3PLUS (0x6771)
made changes everywhere to accomodate for the headers being in <gst/(lib)/...> we'll need to conclude this fast becau... Original commit message from CVS: made changes everywhere to accomodate for the headers being in <gst/(lib)/...> we'll need to conclude this fast because we will also need to change stuff in core real soon for the libs in order to fix everything and I can't do it right now because I disabled all of the plugins here ;)
2001-12-23 12:18:18 +00:00
guint16 channels;
guint32 rate;
guint32 av_bps;
guint16 blockalign;
guint16 size;
};
struct _gst_riff_strf_iavs {
guint32 DVAAuxSrc;
guint32 DVAAuxCtl;
guint32 DVAAuxSrc1;
guint32 DVAAuxCtl1;
guint32 DVVAuxSrc;
guint32 DVVAuxCtl;
guint32 DVReserved1;
guint32 DVReserved2;
};
struct _gst_riff_riff {
guint32 id;
guint32 size;
guint32 type;
};
struct _gst_riff_list {
guint32 id;
guint32 size;
guint32 type;
};
struct _gst_riff_chunk {
guint32 id;
guint32 size;
};
struct _gst_riff_index_entry {
guint32 id;
guint32 flags;
#define GST_RIFF_IF_LIST (0x00000001L)
#define GST_RIFF_IF_KEYFRAME (0x00000010L)
#define GST_RIFF_IF_NO_TIME (0x00000100L)
#define GST_RIFF_IF_COMPUSE (0x0FFF0000L)
guint32 offset;
guint32 size;
};
typedef struct _gst_riff_riff gst_riff_riff;
typedef struct _gst_riff_list gst_riff_list;
typedef struct _gst_riff_chunk gst_riff_chunk;
typedef struct _gst_riff_index_entry gst_riff_index_entry;
typedef struct _gst_riff_avih gst_riff_avih;
typedef struct _gst_riff_strh gst_riff_strh;
typedef struct _gst_riff_strf_vids gst_riff_strf_vids;
typedef struct _gst_riff_strf_auds gst_riff_strf_auds;
typedef struct _gst_riff_strf_iavs gst_riff_strf_iavs;
typedef struct _GstRiff GstRiff;
typedef struct _GstRiffChunk GstRiffChunk;
typedef void (*GstRiffCallback) (GstRiffChunk *chunk, gpointer data);
struct _GstRiff {
guint32 form;
/* list of chunks, most recent at the head */
GList *chunks;
/* incomplete chunks are assembled here */
GstRiffChunk *incomplete_chunk;
guint32 incomplete_chunk_size;
/* parse state */
GstRiffParserState state;
guint32 curoffset;
guint32 nextlikely;
/* leftover data */
guchar *dataleft;
guint32 dataleft_size;
/* callback function and data pointer */
GstRiffCallback new_tag_found;
gpointer callback_data;
};
struct _GstRiffChunk {
gulong offset;
guint32 id;
guint32 size;
guint32 form; /* for list chunks */
gchar *data;
};
/* from gstriffparse.c */
GstRiff* gst_riff_parser_new (GstRiffCallback function, gpointer data);
GstRiffReturn gst_riff_parser_next_buffer (GstRiff *riff, GstBuffer *buf, gulong off);
void gst_riff_parser_resync (GstRiff *riff, gulong offset);
/* from gstriffencode.c */
GstRiff* gst_riff_encoder_new (guint32 type);
GstRiffReturn gst_riff_encoder_avih (GstRiff *riff, gst_riff_avih *head, gulong size);
GstRiffReturn gst_riff_encoder_strh (GstRiff *riff, guint32 fcc_type,
gst_riff_strh *head, gulong size);
GstRiffReturn gst_riff_encoder_strf (GstRiff *riff, void *format, gulong size);
GstRiffReturn gst_riff_encoder_chunk (GstRiff *riff, guint32 chunk_type,
void *chunk, gulong size);
GstBuffer* gst_riff_encoder_get_buffer (GstRiff *riff);
GstBuffer* gst_riff_encoder_get_and_reset_buffer (GstRiff *riff);
/* from gstriffutil.c */
gulong gst_riff_fourcc_to_id (gchar *fourcc);
gchar* gst_riff_id_to_fourcc (gulong id);
#endif /* __GST_RIFF_H__ */
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