felipec / gst-dsp

GStreamer elements for TI's OMAP DSP

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base: don't use DSP flushing
cymacs (author)
Thu Aug 13 08:21:14 -0700 2009
felipec (committer)
Sat Sep 19 04:01:59 -0700 2009
commit  7a4249edd9612e233ca798bc92a581037320e92d
tree    b143a1360799087d35ab45ef1fadbf16d7e09e81
parent  8d94703cb44128052f2999faa0de241d5ba25dc3
gst-dsp / gstdspbase.h
100644 116 lines (91 sloc) 2.895 kb
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/*
 * Copyright (C) 2009 Felipe Contreras
 *
 * Author: Felipe Contreras <felipe.contreras@gmail.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation
 * version 2.1 of the License.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */
 
#ifndef GST_DSP_BASE_H
#define GST_DSP_BASE_H
 
#include <gst/gst.h>
 
G_BEGIN_DECLS
 
#define GST_DSP_BASE(obj) (GstDspBase *)(obj)
#define GST_DSP_BASE_TYPE (gst_dsp_base_get_type())
#define GST_DSP_BASE_CLASS(obj) (GstDspBaseClass *)(obj)
 
/* #define TS_COUNT */
 
typedef struct GstDspBase GstDspBase;
typedef struct GstDspBaseClass GstDspBaseClass;
 
typedef struct du_port_t du_port_t;
 
#include "dmm_buffer.h"
#include "sem.h"
#include "async_queue.h"
 
typedef void (*port_buffer_cb_t) (GstDspBase *base,
				  du_port_t *port,
				  dmm_buffer_t *p,
				  dmm_buffer_t *b);
 
struct du_port_t {
	guint index;
	dmm_buffer_t **buffers;
	dmm_buffer_t **comm; /**< arm-dsp communication structure */
	dmm_buffer_t *param;
	guint num_buffers;
	AsyncQueue *queue;
	port_buffer_cb_t send_cb;
	port_buffer_cb_t recv_cb;
};
 
struct GstDspBase {
	GstElement element;
 
	GstPad *sinkpad, *srcpad;
 
	int dsp_handle;
	void *proc;
	dsp_node_t *node;
	struct dsp_notification *events[3];
 
	GstFlowReturn status;
	unsigned long input_buffer_size;
	unsigned long output_buffer_size;
	GThread *dsp_thread, *out_thread;
	gboolean done, eos;
	gint keyframe;
 
	du_port_t *ports[2];
	dmm_buffer_t *alg_ctrl;
	GstClockTime ts_array[20];
	guint ts_in_pos, ts_out_pos, ts_push_pos;
	GMutex *ts_mutex;
#ifdef TS_COUNT
	gulong ts_count;
#endif
	GSem *flush;
	guint alg;
 
	gboolean use_pad_alloc; /**< Use pad_alloc for output buffers. */
	gboolean use_eos_align; /**< Wait for all buffers before EOS. */
	guint dsp_error;
 
	void *(*create_node)(GstDspBase *base);
	gboolean (*parse_func)(GstDspBase *base, GstBuffer *buf);
	GstCaps *tmp_caps;
 
	/* hacks */
	guint skip_hack; /* don't push x number of buffers */
};
 
struct GstDspBaseClass {
	GstElementClass parent_class;
};
 
GType gst_dsp_base_get_type(void);
 
du_port_t *du_port_new(guint index, guint num_buffers);
void du_port_free(du_port_t *p);
 
gboolean gstdsp_start(GstDspBase *self);
gboolean gstdsp_send_codec_data(GstDspBase *self, GstBuffer *buf);
void gstdsp_post_error(GstDspBase *self, const char *message);
 
G_END_DECLS
 
#endif /* GST_DSP_BASE_H */