/*
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* Copyright (c) 2010-2019 Belledonne Communications SARL.
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*
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* This file is part of mediastreamer2.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef rfc3984_h
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#define rfc3984_h
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#include <mediastreamer2/mscommon.h>
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#include <mediastreamer2/msqueue.h>
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#include <mediastreamer2/msfactory.h>
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/*
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This file declares an API useful to pack/unpack H264 nals as described in RFC3984
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It is part of the public API to allow external H264 plugins use this api.
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*/
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#ifdef __cplusplus
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extern "C"{
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#endif
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typedef enum{
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Rfc3984FrameAvailable = 1,
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Rfc3984FrameCorrupted = 1<<1,
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Rfc3984IsKeyFrame = 1<<2, /*set when a frame has SPS + PPS or IDR (possibly both)*/
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Rfc3984NewSPS = 1<<3,
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Rfc3984NewPPS = 1<<4,
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Rfc3984HasSPS = 1<<5,
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Rfc3984HasPPS = 1<<6,
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Rfc3984HasIDR = 1<<7
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}Rfc3984Status;
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typedef struct _Rfc3984Context Rfc3984Context;
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MS2_PUBLIC Rfc3984Context *rfc3984_new_with_factory(MSFactory *factory);
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MS2_PUBLIC void rfc3984_destroy(Rfc3984Context *ctx);
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MS2_PUBLIC void rfc3984_set_mode(Rfc3984Context *ctx, int mode);
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/* some stupid phones don't decode STAP-A packets ...*/
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MS2_PUBLIC void rfc3984_enable_stap_a(Rfc3984Context *ctx, bool_t yesno);
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/*process NALUs and pack them into rtp payloads */
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MS2_PUBLIC void rfc3984_pack(Rfc3984Context *ctx, MSQueue *naluq, MSQueue *rtpq, uint32_t ts);
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MS2_PUBLIC void rfc3984_unpack_out_of_band_sps_pps(Rfc3984Context *ctx, mblk_t *sps, mblk_t *pps);
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/**
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* Process incoming rtp data and output NALUs, whenever possible.
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* @param ctx the Rfc3984Context object
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* @param im a new H264 packet to process
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* @param naluq a MSQueue into which a frame ready to be decoded will be output, in the form of a sequence of NAL units.
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* @return a bitmask of Rfc3984Status values.
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* The return value is a bitmask of the #Rfc3984Status enum.
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**/
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MS2_PUBLIC unsigned int rfc3984_unpack2(Rfc3984Context *ctx, mblk_t *im, MSQueue *naluq);
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#ifdef __cplusplus
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}
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#endif
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#endif
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