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sout/rtp: add support for E-AC-3 

(cherry picked from commit d41fb4e1d5)
This commit is contained in:
Rémi Denis-Courmont 2021-12-02 18:41:14 +02:00 committed by Hugo Beauzée-Luyssen
parent 080ba0dbf3
commit 42cf4c4ce7
1 changed files with 31 additions and 0 deletions
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31
modules/stream_out/rtpfmt.c
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@ -42,6 +42,7 @@
static int rtp_packetize_mpa (sout_stream_id_sys_t *, block_t *);
static int rtp_packetize_mpv (sout_stream_id_sys_t *, block_t *);
static int rtp_packetize_ac3 (sout_stream_id_sys_t *, block_t *);
static int rtp_packetize_eac3(sout_stream_id_sys_t *, block_t *);
static int rtp_packetize_simple(sout_stream_id_sys_t *, block_t *);
static int rtp_packetize_split(sout_stream_id_sys_t *, block_t *);
static int rtp_packetize_pcm(sout_stream_id_sys_t *, block_t *);
@ -278,6 +279,10 @@ int rtp_get_fmt( vlc_object_t *obj, const es_format_t *p_fmt, const char *mux,
rtp_fmt->ptname = "ac3";
rtp_fmt->pf_packetize = rtp_packetize_ac3;
break;
case VLC_CODEC_EAC3:
rtp_fmt->ptname = "eac3";
rtp_fmt->pf_packetize = rtp_packetize_eac3;
break;
case VLC_CODEC_H263:
rtp_fmt->ptname = "H263-1998";
rtp_fmt->pf_packetize = rtp_packetize_h263;
@ -981,6 +986,32 @@ static int rtp_packetize_ac3( sout_stream_id_sys_t *id, block_t *in )
return VLC_SUCCESS;
}
static int rtp_packetize_eac3(sout_stream_id_sys_t *id, block_t *in)
{
size_t mtu = rtp_mtu(id) - 2;
uint_fast8_t frag_count = (in->i_buffer + mtu - 1) / mtu - 1;
uint8_t frame_type = frag_count > 0;
for (unsigned int i = 0; i < frag_count; i++) {
bool last = i == (frag_count - 1);
size_t len = last ? in->i_buffer : mtu;
block_t *out = block_Alloc(14 + len);
rtp_packetize_common(id, out, false, in->i_pts);
out->p_buffer[12] = frame_type;
out->p_buffer[13] = frag_count;
memcpy(&out->p_buffer[14], in->p_buffer, len);
out->i_dts = in->i_dts + i * in->i_length / frag_count;
rtp_packetize_send(id, out);
in->p_buffer += len;
in->i_buffer -= len;
}
block_Release(in);
return VLC_SUCCESS;
}
static int rtp_packetize_simple(sout_stream_id_sys_t *id, block_t *block)
{
bool marker = (block->i_flags & BLOCK_FLAG_DISCONTINUITY) != 0;