gstreamer/gst/rtp/gstrtph264pay.h
Jan Alexander Steffens (heftig) b46dab13d2 rtph264pay: Support STAP-A bundling
Add a new property "do-aggregate"* to the H.264 RTP payloader which
enables STAP-A aggregation as per [RFC-6184][1]. With aggregation enabled,
packets are bundled instead of sent immediately, up until the MTU size.
Bundles also end at access unit boundaries or when packets have to be
fragmented.

*: The property-name is kept generic since it might apply more widely,
   e.g. STAP-B or MTAP.
[1]: https://tools.ietf.org/html/rfc6184#section-5.7

Closes https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/issues/434
2019-07-03 19:05:29 +00:00

100 lines
2.7 KiB
C

/* GStreamer
* Copyright (C) <2006> Wim Taymans <wim.taymans@gmail.com>
*
* 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_RTP_H264_PAY_H__
#define __GST_RTP_H264_PAY_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <gst/rtp/gstrtpbasepayload.h>
G_BEGIN_DECLS
#define GST_TYPE_RTP_H264_PAY \
(gst_rtp_h264_pay_get_type())
#define GST_RTP_H264_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_H264_PAY,GstRtpH264Pay))
#define GST_RTP_H264_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_H264_PAY,GstRtpH264PayClass))
#define GST_IS_RTP_H264_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_H264_PAY))
#define GST_IS_RTP_H264_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_H264_PAY))
typedef struct _GstRtpH264Pay GstRtpH264Pay;
typedef struct _GstRtpH264PayClass GstRtpH264PayClass;
typedef enum
{
GST_H264_STREAM_FORMAT_UNKNOWN,
GST_H264_STREAM_FORMAT_BYTESTREAM,
GST_H264_STREAM_FORMAT_AVC
} GstH264StreamFormat;
typedef enum
{
GST_H264_ALIGNMENT_UNKNOWN,
GST_H264_ALIGNMENT_NAL,
GST_H264_ALIGNMENT_AU
} GstH264Alignment;
struct _GstRtpH264Pay
{
GstRTPBasePayload payload;
guint profile;
GPtrArray *sps, *pps;
GstH264StreamFormat stream_format;
GstH264Alignment alignment;
guint nal_length_size;
GArray *queue;
gchar *sprop_parameter_sets;
gboolean update_caps;
GstAdapter *adapter;
gint spspps_interval;
gboolean send_spspps;
GstClockTime last_spspps;
/* TRUE if the next NALU processed should have the DELTA_UNIT flag */
gboolean delta_unit;
/* TRUE if the next NALU processed should have the DISCONT flag */
gboolean discont;
/* aggregate buffers with STAP-A */
GstBufferList *bundle;
guint bundle_size;
gboolean do_aggregate;
};
struct _GstRtpH264PayClass
{
GstRTPBasePayloadClass parent_class;
};
GType gst_rtp_h264_pay_get_type (void);
gboolean gst_rtp_h264_pay_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_H264_PAY_H__ */