2 * Copyright 2006, 2007, 2008, 2009, 2010 Fluendo S.A.
3 * Authors: Jan Schmidt <jan@fluendo.com>
4 * Kapil Agrawal <kapil@fluendo.com>
5 * Julien Moutte <julien@fluendo.com>
7 * This library is licensed under 4 different licenses and you
8 * can choose to use it under the terms of any one of them. The
9 * four licenses are the MPL 1.1, the LGPL, the GPL and the MIT
14 * The contents of this file are subject to the Mozilla Public License
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21 * License for the specific language governing rights and limitations
26 * This library is free software; you can redistribute it and/or
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83 #ifndef __BASETSMUX_H__
84 #define __BASETSMUX_H__
87 #include <gst/base/gstcollectpads.h>
88 #include <gst/base/gstadapter.h>
89 #include <gst/base/gstaggregator.h>
93 #include "tsmux/tsmux.h"
95 #define GST_TYPE_BASE_TS_MUX_PAD (gst_base_ts_mux_pad_get_type())
96 #define GST_BASE_TS_MUX_PAD(obj) \
97 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_TS_MUX_PAD, GstBaseTsMuxPad))
98 #define GST_BASE_TS_MUX_PAD_CAST(obj) ((GstBaseTsMuxPad *)(obj))
99 #define GST_BASE_TS_MUX_PAD_CLASS(klass) \
100 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_TS_MUX_PAD, GstBaseTsMuxPadClass))
101 #define GST_IS_BASE_TS_MUX_PAD(obj) \
102 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_TS_MUX_PAD))
103 #define GST_IS_BASE_TS_MUX_PAD_CLASS(klass) \
104 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_TS_MUX_PAD))
105 #define GST_BASE_TS_MUX_PAD_GET_CLASS(obj) \
106 (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_TS_MUX_PAD,GstBaseTsMuxPadClass))
108 typedef struct _GstBaseTsMuxPad GstBaseTsMuxPad;
109 typedef struct _GstBaseTsMuxPadClass GstBaseTsMuxPadClass;
110 typedef struct _GstBaseTsMuxPadPrivate GstBaseTsMuxPadPrivate;
111 typedef struct GstBaseTsMux GstBaseTsMux;
112 typedef struct GstBaseTsMuxClass GstBaseTsMuxClass;
113 typedef struct GstBaseTsPadData GstBaseTsPadData;
115 typedef GstBuffer * (*GstBaseTsMuxPadPrepareFunction) (GstBuffer * buf,
116 GstBaseTsMuxPad * data, GstBaseTsMux * mux);
118 typedef void (*GstBaseTsMuxPadFreePrepareDataFunction) (gpointer prepare_data);
120 struct _GstBaseTsMuxPad
122 GstAggregatorPad parent;
127 /* most recent DTS */
130 /* optional codec data available in the caps */
131 GstBuffer *codec_data;
133 /* Opaque data pointer to a structure used by the prepare function */
134 gpointer prepare_data;
136 /* handler to prepare input data */
137 GstBaseTsMuxPadPrepareFunction prepare_func;
138 /* handler to free the private data */
139 GstBaseTsMuxPadFreePrepareDataFunction free_func;
141 /* program id to which it is attached to (not program pid) */
143 /* program this stream belongs to */
149 struct _GstBaseTsMuxPadClass
151 GstAggregatorPadClass parent_class;
154 GType gst_base_ts_mux_pad_get_type (void);
156 #define GST_TYPE_BASE_TS_MUX (gst_base_ts_mux_get_type())
157 #define GST_BASE_TS_MUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_BASE_TS_MUX, GstBaseTsMux))
158 #define GST_BASE_TS_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_BASE_TS_MUX, GstBaseTsMuxClass))
159 #define GST_BASE_TS_MUX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_BASE_TS_MUX,GstBaseTsMuxClass))
161 #define GST_BASE_TS_MUX_NORMAL_PACKET_LENGTH 188
163 struct GstBaseTsMux {
164 GstAggregator parent;
167 GHashTable *programs;
170 GstStructure *prog_map;
178 guint scte35_null_interval;
182 GstClockTime pending_key_unit_ts;
183 GstEvent *force_key_unit_event;
184 GstMpegtsSection *pending_scte35_section;
186 /* write callback handling/state */
187 GstFlowReturn last_flow_ret;
189 gboolean streamheader_sent;
192 GstClockTime last_ts;
195 gsize automatic_alignment;
197 /* output buffer aggregation */
198 GstAdapter *out_adapter;
199 GstBuffer *out_buffer;
204 * @create_ts_mux: Optional.
205 * Called in order to create the #TsMux object.
206 * @handle_media_type: Optional.
207 * Called in order to determine the stream-type for a given
208 * @media_type (eg. video/x-h264).
209 * @allocate_packet: Optional.
210 * Called when the underlying #TsMux object needs a packet
212 * @output_packet: Optional.
213 * Called when the underlying #TsMux object has a packet
216 * Called when the subclass needs to reset.
218 * Called at EOS, if the subclass has data it needs to drain.
220 struct GstBaseTsMuxClass {
221 GstAggregatorClass parent_class;
223 TsMux * (*create_ts_mux) (GstBaseTsMux *mux);
224 guint (*handle_media_type) (GstBaseTsMux *mux, const gchar *media_type, GstBaseTsMuxPad * pad);
225 void (*allocate_packet) (GstBaseTsMux *mux, GstBuffer **buffer);
226 gboolean (*output_packet) (GstBaseTsMux *mux, GstBuffer *buffer, gint64 new_pcr);
227 void (*reset) (GstBaseTsMux *mux);
228 gboolean (*drain) (GstBaseTsMux *mux);
231 void gst_base_ts_mux_set_packet_size (GstBaseTsMux *mux, gsize size);
232 void gst_base_ts_mux_set_automatic_alignment (GstBaseTsMux *mux, gsize alignment);
234 typedef GstBuffer * (*GstBaseTsPadDataPrepareFunction) (GstBuffer * buf,
235 GstBaseTsPadData * data, GstBaseTsMux * mux);
237 typedef void (*GstBaseTsPadDataFreePrepareDataFunction) (gpointer prepare_data);
239 struct GstBaseTsPadData {
241 GstCollectData collect;
246 /* most recent DTS */
249 /* optional codec data available in the caps */
250 GstBuffer *codec_data;
252 /* Opaque data pointer to a structure used by the prepare function */
253 gpointer prepare_data;
255 /* handler to prepare input data */
256 GstBaseTsPadDataPrepareFunction prepare_func;
257 /* handler to free the private data */
258 GstBaseTsPadDataFreePrepareDataFunction free_func;
260 /* program id to which it is attached to (not program pid) */
262 /* program this stream belongs to */
268 GType gst_base_ts_mux_get_type (void);