gstreamer/gst/avi/gstavimux.h

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/* AVI muxer plugin for GStreamer
* Copyright (C) 2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* 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_AVI_MUX_H__
#define __GST_AVI_MUX_H__
#include <gst/gst.h>
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#include <gst/base/gstcollectpads2.h>
Riff, EBML, fourcc etc. work. Not fully finished, but better than what we used to have and definately worth a first b... Original commit message from CVS: Riff, EBML, fourcc etc. work. Not fully finished, but better than what we used to have and definately worth a first broad testing. I've revived rifflib. Rifflib used to be a bytestream-for-riff, which just dup'ed bytestream. I've rewritten rifflib to be a modern riff- chunk parser that uses bytestream fully, plus adds some extra functions so that riff file parsing becomes extremely easy. It also contains some small usability functions for strh/strf and metadata parsing. Note that it doesn't use the new tagging yet, that's a TODO. Avidemux has been rewritten to use this. I think we all agreed that avidemux was pretty much a big mess, which is because it used all sort of bytestream magic all around the place. It was just ugly. This is a lot nicer, very complete and safe. I think this is far more robust than what the old avidemux could ever have been. Of course, it might contain bugs, please let me know. EBML writing has also been implemented. This is useful for matroska. I'm intending to modify avidemux (with a riffwriter) similarly. Maybe I'll change wavparse/-enc too to use rifflib. Lastly, several plugins have been modified to use rifflib's fourcc parsing instead of their own. this puts fourcc parsing in one central place, which should make it a lot simpler to add new fourccs. We might want to move this to its own lib instead of rifflib. Enjoy!
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#include <gst/riff/riff-ids.h>
#include "avi-ids.h"
G_BEGIN_DECLS
#define GST_TYPE_AVI_MUX \
(gst_avi_mux_get_type())
#define GST_AVI_MUX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AVI_MUX,GstAviMux))
#define GST_AVI_MUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AVI_MUX,GstAviMuxClass))
#define GST_IS_AVI_MUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AVI_MUX))
#define GST_IS_AVI_MUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AVI_MUX))
#define GST_AVI_INDEX_OF_INDEXES 0
#define GST_AVI_INDEX_OF_CHUNKS 1
/* this allows indexing up to 64GB avi file */
#define GST_AVI_SUPERINDEX_COUNT 32
/* max size */
#define GST_AVI_MAX_SIZE 0x40000000
typedef struct _gst_avi_superindex_entry {
guint64 offset;
guint32 size;
guint32 duration;
} gst_avi_superindex_entry;
typedef struct _gst_riff_strh_full {
gst_riff_strh parent;
/* rcFrame, RECT structure (struct of 4 shorts) */
gint16 left;
gint16 top;
gint16 right;
gint16 bottom;
} gst_riff_strh_full;
typedef struct _GstAviPad GstAviPad;
typedef struct _GstAviMux GstAviMux;
typedef struct _GstAviMuxClass GstAviMuxClass;
typedef GstFlowReturn (*GstAviPadHook) (GstAviMux * avi, GstAviPad * avipad,
GstBuffer * buffer);
struct _GstAviPad {
/* do not extend, link to it */
/* is NULL if original sink request pad has been removed */
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GstCollectData2 *collect;
/* type */
gboolean is_video;
gboolean connected;
/* chunk tag */
gchar *tag;
/* stream header */
gst_riff_strh hdr;
/* odml super indexes */
gst_avi_superindex_entry idx[GST_AVI_SUPERINDEX_COUNT];
gint idx_index;
gchar *idx_tag;
/* stream specific hook */
GstAviPadHook hook;
};
typedef struct _GstAviVideoPad {
GstAviPad parent;
/* stream format */
gst_riff_strf_vids vids;
/* extra data */
GstBuffer *vids_codec_data;
/* ODML video properties */
gst_riff_vprp vprp;
GstBuffer *prepend_buffer;
} GstAviVideoPad;
typedef struct _GstAviAudioPad {
GstAviPad parent;
/* stream format */
gst_riff_strf_auds auds;
/* audio info for bps calculation */
guint32 audio_size;
guint64 audio_time;
/* counts the number of samples to put in indx chunk
* useful for raw audio where usually there are more than
* 1 sample in each GstBuffer */
gint samples;
/* extra data */
GstBuffer *auds_codec_data;
} GstAviAudioPad;
typedef struct _GstAviCollectData {
/* extend the CollectData */
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GstCollectData2 collect;
GstAviPad *avipad;
} GstAviCollectData;
struct _GstAviMux {
GstElement element;
/* pads */
GstPad *srcpad;
/* sinkpads, video first */
GSList *sinkpads;
/* video restricted to 1 pad */
guint video_pads, audio_pads;
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GstCollectPads2 *collect;
/* the AVI header */
/* still some single stream video data in mux struct */
gst_riff_avih avi_hdr;
/* total number of (video) frames */
guint32 total_frames;
/* amount of total data (bytes) */
guint64 total_data;
/* amount of data (bytes) in the AVI/AVIX block;
* actually the movi list, so counted from and including the movi tag */
guint32 data_size, datax_size;
/* num (video) frames in the AVI/AVIX block */
guint32 num_frames, numx_frames;
/* size of hdrl list, including tag as usual */
/* total size of extra codec data */
guint32 codec_data_size;
/* state info */
gboolean write_header;
gboolean restart;
/* tags */
GstTagList *tags_snap;
/* information about the AVI index ('idx') */
gst_riff_index_entry *idx;
gint idx_index, idx_count;
/* offset of *chunk* (relative to a base offset); entered in the index */
guint32 idx_offset;
/* size of idx1 chunk (including! chunk header and size bytes) */
guint32 idx_size;
/* are we a big file already? */
gboolean is_bigfile;
guint64 avix_start;
/* whether to use "large AVI files" or just stick to small indexed files */
gboolean enable_large_avi;
};
struct _GstAviMuxClass {
GstElementClass parent_class;
};
GType gst_avi_mux_get_type(void);
G_END_DECLS
#endif /* __GST_AVI_MUX_H__ */