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/* GStreamer
* Copyright (C) <2006> Renato Araujo Oliveira Filho <renato.filho@indt.org.br>
* Rosfran Borges <rosfran.borges@indt.org.br>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_NUV_DEMUX_H__
#define __GST_NUV_DEMUX_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
#define GST_TYPE_NUV_DEMUX \
(gst_nuv_demux_get_type ())
#define GST_NUV_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_NUV_DEMUX, GstNuvDemux))
#define GST_NUV_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_NUV_DEMUX, GstNuvDemuxClass))
#define GST_IS_NUV_DEMUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_NUV_DEMUX))
#define GST_IS_NUV_DEMUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_NUV_DEMUX))
/* */
typedef struct
{
gchar id[12]; /* "NuppelVideo\0" or "MythTVVideo\0" */
gchar version[5]; /* "x.xx\0" */
gint i_width;
gint i_height;
gint i_width_desired;
gint i_height_desired;
gchar i_mode; /* P progressive, I interlaced */
gdouble d_aspect; /* 1.0 squared pixel */
gdouble d_fps;
gint i_video_blocks; /* 0 no video, -1 unknown */
gint i_audio_blocks;
gint i_text_blocks;
gint i_keyframe_distance;
} nuv_header;
typedef struct
{
gchar i_type; /* A: audio, V: video, S: sync; T: test
R: Seekpoint (string:RTjjjjjjjj)
D: Extra data for codec */
gchar i_compression; /* V: 0 uncompressed
1 RTJpeg
2 RTJpeg+lzo
N black frame
L copy last
A: 0 uncompressed (44100 1-bits, 2ch)
1 lzo
2 layer 2
3 layer 3
F flac
S shorten
N null frame loudless
L copy last
S: B audio and vdeo sync point
A audio sync info (timecode == effective
dsp frequency*100)
V next video sync (timecode == next video
frame num)
S audio,video,text correlation */
gchar i_keyframe; /* 0 keyframe, else no no key frame */
guint8 i_filters; /* 0x01: gauss 5 pixel (8,2,2,2,2)/16
0x02: gauss 5 pixel (8,1,1,1,1)/12
0x04: cartoon filter */
gint i_timecode; /* ms */
gint i_length; /* V,A,T: length of following data
S: length of packet correl */
} nuv_frame_header;
/* FIXME Not sure of this one */
typedef struct
{
gint i_version;
guint32 i_video_fcc;
guint32 i_audio_fcc;
gint i_audio_sample_rate;
gint i_audio_bits_per_sample;
gint i_audio_channels;
gint i_audio_compression_ratio;
gint i_audio_quality;
gint i_rtjpeg_quality;
gint i_rtjpeg_luma_filter;
gint i_rtjpeg_chroma_filter;
gint i_lavc_bitrate;
gint i_lavc_qmin;
gint i_lavc_qmax;
gint i_lavc_maxqdiff;
gint64 i_seekable_offset;
gint64 i_keyframe_adjust_offset;
} nuv_extended_header;
typedef enum {
GST_NUV_DEMUX_START,
GST_NUV_DEMUX_HEADER_DATA,
GST_NUV_DEMUX_EXTRA_DATA,
GST_NUV_DEMUX_MPEG_DATA,
GST_NUV_DEMUX_EXTEND_HEADER,
GST_NUV_DEMUX_EXTEND_HEADER_DATA,
GST_NUV_DEMUX_FRAME_HEADER,
GST_NUV_DEMUX_MOVI,
GST_NUV_DEMUX_INVALID_DATA
} GstNuvDemuxState;
typedef struct _GstNuvDemux {
GstElement parent;
guint mode;
GstAdapter *adapter;
guint64 video_offset;
guint64 audio_offset;
/* pads */
GstPad *sinkpad;
GstPad *src_video_pad;
GstPad *src_audio_pad;
gboolean first_video;
gboolean first_audio;
/* NUV decoding state */
GstNuvDemuxState state;
guint64 offset;
/* Mpeg ExtraData */
guint64 mpeg_data_size;
GstBuffer *mpeg_buffer;
nuv_header *h;
nuv_extended_header *eh;
nuv_frame_header *fh;
} GstNuvDemux;
typedef struct _GstNuvDemuxClass {
GstElementClass parent_class;
} GstNuvDemuxClass;
GType gst_nuv_demux_get_type (void);
G_END_DECLS
#endif /* __GST_NUV_DEMUX_H__ */
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