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44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
#ifndef SC_PACKET_MERGER_H
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#define SC_PACKET_MERGER_H
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#include "common.h"
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#include <stdbool.h>
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#include <stdint.h>
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#include <libavcodec/avcodec.h>
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/**
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* Config packets (containing the SPS/PPS) are sent in-band. A new config
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* packet is sent whenever a new encoding session is started (on start and on
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* device orientation change).
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*
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* Every time a config packet is received, it must be sent alone (for recorder
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* extradata), then concatenated to the next media packet (for correct decoding
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* and recording).
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*
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* This helper reads every input packet and modifies each media packet which
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* immediately follows a config packet to prepend the config packet payload.
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*/
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struct sc_packet_merger {
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uint8_t *config;
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size_t config_size;
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};
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void
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sc_packet_merger_init(struct sc_packet_merger *merger);
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void
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sc_packet_merger_destroy(struct sc_packet_merger *merger);
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/**
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* If the packet is a config packet, then keep its data for later.
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* Otherwise (if the packet is a media packet), then if a config packet is
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* pending, prepend the config packet to this packet (so the packet is
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* modified!).
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*/
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bool
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sc_packet_merger_merge(struct sc_packet_merger *merger, AVPacket *packet);
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#endif
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