Commit 578e4483 authored by Ilkka Ollakka's avatar Ilkka Ollakka

TS: insert/flag PAT/PMT before keyframes if use-keyframes is set

Flagging those PAT/PMT blocks enables us to segment ts-files so that
each segment starts with PAT,PMT,Keyframes. Usable in livehttp-module.
parent f55205d3
......@@ -1173,6 +1173,18 @@ static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
return VLC_SUCCESS;
}
static void SetHeader( sout_buffer_chain_t *c,
int depth )
{
block_t *p_ts = BufferChainPeek( c );
while( depth > 0 )
{
p_ts = p_ts->p_next;
depth--;
}
p_ts->i_flags |= BLOCK_FLAG_HEADER;
}
/* returns true if needs more data */
static bool MuxStreams(sout_mux_t *p_mux )
{
......@@ -1430,6 +1442,7 @@ static bool MuxStreams(sout_mux_t *p_mux )
/* 3: mux PES into TS */
BufferChainInit( &chain_ts );
/* append PAT/PMT -> FIXME with big pcr delay it won't have enough pat/pmt */
bool pat_was_previous = true; //This is to prevent unnecessary double PAT/PMT insertions
GetPAT( p_mux, &chain_ts );
GetPMT( p_mux, &chain_ts );
int i_packet_pos = 0;
......@@ -1487,6 +1500,24 @@ static bool MuxStreams(sout_mux_t *p_mux )
}
i_packet_pos++;
/* Write PAT/PMT before every keyframe if use-key-frames is enabled,
* this helps to do segmenting with livehttp-output so it can cut segment
* and start new one with pat,pmt,keyframe*/
if( ( p_sys->b_use_key_frames ) && ( p_ts->i_flags & BLOCK_FLAG_TYPE_I ) )
{
if( likely( !pat_was_previous ) )
{
int startcount = chain_ts.i_depth;
GetPAT( p_mux, &chain_ts );
GetPMT( p_mux, &chain_ts );
SetHeader( &chain_ts, startcount );
i_packet_count += (chain_ts.i_depth - startcount );
} else {
SetHeader( &chain_ts, 0); //We just inserted pat/pmt,so just flag it instead of adding new one
}
}
pat_was_previous = false;
/* */
BufferChainAppend( &chain_ts, p_ts );
}
......
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