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cc1556efab
We cannot rely only on the DISCONT flag when deciding whether we need to request a new key frame or not because it might be that the packet that just came in with the DISCONT flag is actually the start of a keyframe. This patch improves the logic to be the same as rtph265depay, by only requesting a key frame if the packet with the DISCONT flag is not the first one of a FU; or if its the first one, only request it when we could drop packets due to a missing key frame. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8343>
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/* GStreamer
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* Copyright (C) <2006> Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_RTP_H264_DEPAY_H__
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#define __GST_RTP_H264_DEPAY_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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#include <gst/rtp/gstrtpbasedepayload.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_H264_DEPAY \
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(gst_rtp_h264_depay_get_type())
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#define GST_RTP_H264_DEPAY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_H264_DEPAY,GstRtpH264Depay))
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#define GST_RTP_H264_DEPAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_H264_DEPAY,GstRtpH264DepayClass))
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#define GST_IS_RTP_H264_DEPAY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_H264_DEPAY))
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#define GST_IS_RTP_H264_DEPAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_H264_DEPAY))
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typedef struct _GstRtpH264Depay GstRtpH264Depay;
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typedef struct _GstRtpH264DepayClass GstRtpH264DepayClass;
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struct _GstRtpH264Depay
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{
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GstRTPBaseDepayload depayload;
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gboolean byte_stream;
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GstBuffer *codec_data;
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GstAdapter *adapter;
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gboolean wait_start;
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/* nal merging */
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gboolean merge;
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GstAdapter *picture_adapter;
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gboolean picture_start;
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GstClockTime last_ts;
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gboolean last_keyframe;
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/* Work around broken payloaders wrt. FU-A & FU-B */
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guint8 current_fu_type;
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guint16 last_fu_seqnum;
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GstClockTime fu_timestamp;
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gboolean fu_marker;
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/* misc */
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GPtrArray *sps;
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GPtrArray *pps;
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gboolean new_codec_data;
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/* downstream allocator */
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GstAllocator *allocator;
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GstAllocationParams params;
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gboolean wait_for_keyframe;
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gboolean request_keyframe;
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gboolean waiting_for_keyframe;
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gboolean requesting_keyframe;
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};
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struct _GstRtpH264DepayClass
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{
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GstRTPBaseDepayloadClass parent_class;
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};
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GType gst_rtp_h264_depay_get_type (void);
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gboolean gst_rtp_h264_add_sps_pps (GstElement * rtph264, GPtrArray * sps,
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GPtrArray * pps, GstBuffer * nal);
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G_END_DECLS
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#endif /* __GST_RTP_H264_DEPAY_H__ */
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