/
out_rtp.c
1240 lines (1077 loc) · 40.5 KB
/
out_rtp.c
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/*
* GPAC - Multimedia Framework C SDK
*
* Authors: Jean Le Feuvre
* Copyright (c) Telecom ParisTech 2019-2022
* All rights reserved
*
* This file is part of GPAC / rtp output filter
*
* GPAC is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* GPAC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <gpac/internal/media_dev.h>
#include <gpac/constants.h>
#include <gpac/maths.h>
#if !defined(GPAC_DISABLE_ISOM) && !defined(GPAC_DISABLE_STREAMING)
#include <gpac/filters.h>
#include <gpac/ietf.h>
#include <gpac/config_file.h>
#include <gpac/base_coding.h>
#include <gpac/rtp_streamer.h>
#include "out_rtp.h"
typedef struct
{
//options
char *ip;
char *dst, *ext, *mime;
u32 port;
Bool loop, xps;
Bool mpeg4;
u32 mtu;
u32 ttl;
char *ifce;
u32 payt, tt;
s32 delay;
char *info, *url, *email;
s32 runfor, tso;
Bool latm;
/*timeline origin of our session (all tracks) in microseconds*/
u64 sys_clock_at_init;
/*list of streams in session*/
GF_List *streams;
/*base stream if this stream contains a media decoding dependency, 0 otherwise*/
u32 base_pid_id;
Bool first_RTCP_sent;
GF_RTPOutStream *active_stream;
u32 active_stream_idx;
u64 active_min_ts_microsec;
GF_FilterPid *opid;
Bool wait_for_loop;
u64 microsec_ts_init;
//0: not single stream, 1: input is raw media, 2: input is TS
u32 single_stream;
GF_FilterCapability in_caps[2];
char szExt[10];
} GF_RTPOutCtx;
GF_Err rtpout_create_sdp(GF_List *streams, Bool is_rtsp, const char *ip, const char *info, const char *sess_name, const char *url, const char *email, u32 base_pid_id, FILE **sdp_tmp, u64 *session_id)
{
FILE *sdp_out;
u32 i, count;
u64 session_version;
sdp_out = gf_file_temp(NULL);
if (!sdp_out) return GF_IO_ERR;
*sdp_tmp = sdp_out;
count = gf_list_count(streams);
gf_fprintf(sdp_out, "v=0\n");
if (gf_sys_is_test_mode()) {
*session_id = 0;
session_version = 0;
} else {
if (! *session_id) *session_id = gf_net_get_ntp_ts();
session_version = gf_net_get_ntp_ts();
}
gf_fprintf(sdp_out, "o=gpac "LLU" "LLU" IN IP%d %s\n", *session_id, session_version, gf_net_is_ipv6(ip) ? 6 : 4, ip);
gf_fprintf(sdp_out, "s=%s\n", sess_name);
if (info) {
gf_fprintf(sdp_out, "i=%s\n", info);
} else {
GF_RTPOutStream *stream = gf_list_get(streams, 0);
const char *src = gf_filter_pid_orig_src_args(stream->pid, GF_FALSE);
if (!src) src = gf_filter_pid_get_source_filter_name(stream->pid);
else {
src = gf_file_basename(src);
}
if (src)
gf_fprintf(sdp_out, "i=%s\n", src);
}
gf_fprintf(sdp_out, "u=%s\n", url ? url : "http://gpac.io");
if (email) {
gf_fprintf(sdp_out, "e=%s\n", email);
}
if (is_rtsp) {
gf_fprintf(sdp_out, "c=IN IP4 0.0.0.0\n");
} else {
gf_fprintf(sdp_out, "c=IN IP%d %s\n", gf_net_is_ipv6(ip) ? 6 : 4, ip);
}
gf_fprintf(sdp_out, "t=0 0\n");
if (is_rtsp) {
gf_fprintf(sdp_out, "a=control:*\n");
}
if (gf_sys_is_test_mode()) {
gf_fprintf(sdp_out, "a=x-copyright: Streamed with GPAC - http://gpac.io\n");
} else {
gf_fprintf(sdp_out, "a=x-copyright: Streamed with GPAC %s - %s\n", gf_gpac_version(), gf_gpac_copyright() );
}
if (is_rtsp) {
Double max_dur=0;
Bool disable_seek = GF_FALSE;
for (i=0; i<count; i++) {
const GF_PropertyValue *p;
GF_RTPOutStream *stream = gf_list_get(streams, i);
if (!stream->rtp) continue;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_DURATION);
if (p) {
Double dur = (Double) p->value.lfrac.num;
dur /= p->value.lfrac.den;
if (dur>max_dur) max_dur = dur;
}
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_PLAYBACK_MODE);
if (!p || (p->value.uint<GF_PLAYBACK_MODE_FASTFORWARD))
disable_seek = GF_TRUE;
}
if (!disable_seek && max_dur) {
gf_fprintf(sdp_out, "a=range:npt=0-%g\n", max_dur);
}
}
if (base_pid_id) {
gf_fprintf(sdp_out, "a=group:DDP L%d", base_pid_id);
for (i = 0; i < count; i++) {
GF_RTPOutStream *st = gf_list_get(streams, i);
if (st->depends_on == base_pid_id) {
gf_fprintf(sdp_out, " L%d", i+1);
}
}
gf_fprintf(sdp_out, "\n");
}
for (i=0; i<count; i++) {
char *sdp_media=NULL;
const char *KMS = NULL;
char *dsi = NULL;
char *dsi_enh = NULL;
u32 w, h, tw, th;
s32 tx, ty;
s16 tl;
u32 dsi_len = 0;
u32 dsi_enh_len = 0;
u32 nb_chan = 0;
const GF_PropertyValue *p;
GF_RTPOutStream *stream = gf_list_get(streams, i);
if (!stream->rtp) continue;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_DECODER_CONFIG);
if (p && p->value.data.ptr) {
dsi = p->value.data.ptr;
dsi_len = p->value.data.size;
}
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_DECODER_CONFIG_ENHANCEMENT);
if (p && p->value.data.ptr) {
dsi_enh = p->value.data.ptr;
dsi_enh_len = p->value.data.size;
}
w = h = tw = th = 0;
tx = ty = 0;
tl = 0;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_WIDTH);
if (p) w = p->value.uint;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_HEIGHT);
if (p) h = p->value.uint;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_NUM_CHANNELS);
if (p) nb_chan = p->value.uint;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_PROTECTION_KMS_URI);
if (p) KMS = p->value.string;
if (stream->codecid == GF_CODECID_TX3G) {
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_TRANS_X);
if (p) tx = p->value.sint;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_TRANS_Y);
if (p) ty = p->value.sint;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_ZORDER);
if (p) tl = p->value.sint;
tw = w;
th = h;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_WIDTH_MAX);
if (p) w = p->value.uint;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_HEIGHT_MAX);
if (p) h = p->value.uint;
}
gf_rtp_streamer_append_sdp_extended(stream->rtp, stream->id, dsi, dsi_len, dsi_enh, dsi_enh_len, (char *)KMS, w, h, tw, th, tx, ty, tl, nb_chan, is_rtsp, &sdp_media);
if (sdp_media) {
gf_fprintf(sdp_out, "%s", sdp_media);
gf_free(sdp_media);
}
if (base_pid_id) {
u32 j;
gf_fprintf(sdp_out, "a=mid:L%d\n", i+1);
if ((base_pid_id != stream->id) && stream->depends_on) {
GF_RTPOutStream *dep = stream;
gf_fprintf(sdp_out, "a=depend:%d lay", gf_rtp_streamer_get_payload_type(stream->rtp) );
while (dep) {
GF_RTPOutStream *base=NULL;
for (j=0; j<count; j++) {
base = gf_list_get(streams, j);
if (dep->depends_on == base->id) break;
base = NULL;
}
if (!base) break;
s32 idx = gf_list_find(streams, base);
if (idx<0) break;
gf_fprintf(sdp_out, " L%d:%d", idx+1, gf_rtp_streamer_get_payload_type(base->rtp) );
dep = base;
}
gf_fprintf(sdp_out, "\n");
}
}
if (is_rtsp) {
gf_fprintf(sdp_out, "a=control:trackID=%d\n", stream->ctrl_id);
}
}
gf_fprintf(sdp_out, "\n");
return GF_OK;
}
GF_Err rtpout_init_streamer(GF_RTPOutStream *stream, const char *ipdest, Bool inject_xps, Bool use_mpeg4_signaling, Bool use_latm, u32 payt, u32 mtu, u32 ttl, const char *ifce, Bool is_rtsp, u32 *base_pid_id, u32 file_mode)
{
Bool disable_mpeg4 = GF_FALSE;
u32 flags, average_size, max_size, max_tsdelta, codecid, const_dur, nb_ch, samplerate, max_cts_offset, bandwidth, IV_length, KI_length, dsi_len, max_ptime, au_sn_len;
char *dsi;
Bool is_crypted, is_enh_dsi = GF_FALSE;
const GF_PropertyValue *p;
*base_pid_id = 0;
dsi_len = samplerate = nb_ch = IV_length = KI_length = 0;
is_crypted = 0;
dsi = NULL;
flags = 0;
max_ptime = au_sn_len = 0;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_CODECID);
codecid = p ? p->value.uint : 0;
if (stream->codecid && (stream->codecid != codecid)) {
GF_LOG(GF_LOG_ERROR, GF_LOG_RTP, ("[RTPOut] Dynamic change of codec in RTP session not supported !\n"));
return GF_FILTER_NOT_SUPPORTED;
}
stream->codecid = codecid;
stream->is_encrypted = GF_FALSE;
if (stream->streamtype == GF_STREAM_ENCRYPTED) {
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_ORIG_STREAM_TYPE);
if (p) stream->streamtype = p->value.uint;
stream->is_encrypted = GF_TRUE;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_PROTECTION_SCHEME_TYPE);
if (!p || (p->value.uint != GF_ISOM_ISMACRYP_SCHEME)) {
GF_LOG(GF_LOG_ERROR, GF_LOG_RTP, ("[RTPOut] Protected track with scheme type %s, cannot stream (only ISMA over RTP is supported !\n", p ? gf_4cc_to_str(p->value.uint) : "unknown" ));
return GF_FILTER_NOT_SUPPORTED;
}
}
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_TIMESCALE);
stream->timescale = p ? p->value.uint : 1000;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_CONFIG_IDX);
stream->sample_desc_index = p ? p->value.uint : 0;
u32 cfg_crc=0;
dsi = NULL;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_DECODER_CONFIG);
if (!p) {
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_DECODER_CONFIG_ENHANCEMENT);
is_enh_dsi = GF_TRUE;
}
if (p) {
dsi = p->value.data.ptr;
dsi_len = p->value.data.size;
cfg_crc = gf_crc_32(dsi, dsi_len);
}
if (stream->rtp && (cfg_crc==stream->cfg_crc))
return GF_OK;
if (inject_xps)
stream->inject_ps = GF_TRUE;
else if (stream->cfg_crc)
stream->inject_ps = GF_TRUE;
stream->cfg_crc = cfg_crc;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_NB_FRAMES);
stream->nb_aus = p ? p->value.uint : 0;
switch (stream->streamtype) {
case GF_STREAM_OD:
case GF_STREAM_SCENE:
//todo, check if sync shadow is used
// if (gf_isom_has_sync_shadows(ctx->isom, stream->track_num) || gf_isom_has_sample_dependency(ctx->isom, stream->track_num))
// flags |= GP_RTP_PCK_SYSTEMS_CAROUSEL;
break;
case GF_STREAM_AUDIO:
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_SAMPLE_RATE);
if (p) samplerate = p->value.uint;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_NUM_CHANNELS);
if (p) nb_ch = p->value.uint;
break;
case GF_STREAM_VISUAL:
break;
case GF_STREAM_FILE:
if (file_mode==2) {
stream->codecid = codecid = GF_CODECID_FAKE_MP2T;
stream->timescale = 90000;
}
break;
default:
break;
}
gf_filter_pid_set_framing_mode(stream->pid, (stream->streamtype==GF_STREAM_FILE) ? GF_FALSE : GF_TRUE);
/*get sample info*/
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_MAX_FRAME_SIZE);
max_size = p ? p->value.uint : 0;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_AVG_FRAME_SIZE);
average_size = p ? p->value.uint : 0;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_MAX_TS_DELTA);
max_tsdelta = p ? p->value.uint : 0;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_MAX_CTS_OFFSET);
max_cts_offset = p ? p->value.uint : (u32) -1;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_CONSTANT_DURATION);
const_dur = p ? p->value.uint : 0;
if (stream->avcc) gf_odf_avc_cfg_del(stream->avcc);
stream->avcc = NULL;
if (stream->hvcc) gf_odf_hevc_cfg_del(stream->hvcc);
stream->hvcc = NULL;
if (stream->vvcc) gf_odf_vvc_cfg_del(stream->vvcc);
stream->vvcc = NULL;
stream->avc_nalu_size = 0;
switch (codecid) {
case GF_CODECID_AVC:
case GF_CODECID_SVC:
case GF_CODECID_MVC:
if (dsi) {
GF_AVCConfig *avcc = gf_odf_avc_cfg_read(dsi, dsi_len);
if (avcc) {
stream->avc_nalu_size = avcc->nal_unit_size;
if (stream->inject_ps)
stream->avcc = avcc;
else
gf_odf_avc_cfg_del(avcc);
}
}
break;
case GF_CODECID_HEVC:
case GF_CODECID_LHVC:
case GF_CODECID_VVC:
if (dsi) {
GF_VVCConfig *vvcc = NULL;
GF_HEVCConfig *hvcc = NULL;
u8 vps_nut=0,sps_nut=0,pps_nut=0;
GF_List *param_array = NULL;
if (codecid == GF_CODECID_VVC) {
vvcc = gf_odf_vvc_cfg_read(dsi, dsi_len);
param_array = vvcc->param_array;
sps_nut = GF_VVC_NALU_SEQ_PARAM;
pps_nut = GF_VVC_NALU_PIC_PARAM;
vps_nut = GF_VVC_NALU_VID_PARAM;
stream->avc_nalu_size = vvcc->nal_unit_size;
} else {
hvcc = gf_odf_hevc_cfg_read(dsi, dsi_len, (is_enh_dsi && (codecid==GF_CODECID_LHVC)) ? GF_TRUE : GF_FALSE );
param_array = hvcc->param_array;
sps_nut = GF_HEVC_NALU_SEQ_PARAM;
pps_nut = GF_HEVC_NALU_PIC_PARAM;
vps_nut = GF_HEVC_NALU_VID_PARAM;
stream->avc_nalu_size = hvcc->nal_unit_size;
}
if (param_array) {
if (stream->inject_ps) {
u32 i, count = gf_list_count(param_array);
GF_NALUFFParamArray *vpsa=NULL, *spsa=NULL, *ppsa=NULL;
stream->vvcc = vvcc;
stream->hvcc = hvcc;
for (i=0; i<count; i++) {
GF_NALUFFParamArray *pa = gf_list_get(param_array, i);
if (!vpsa && (pa->type == vps_nut)) {
vpsa = pa;
gf_list_rem(param_array, i);
count--;
}
else if (!spsa && (pa->type == sps_nut)) {
spsa = pa;
gf_list_rem(param_array, i);
count--;
}
else if (!ppsa && (pa->type == pps_nut)) {
ppsa = pa;
gf_list_rem(param_array, i);
count--;
}
}
//insert PPS at beginning
if (ppsa) gf_list_insert(param_array, ppsa, 0);
//insert SPS at beginning
if (spsa) gf_list_insert(param_array, spsa, 0);
//insert VPS at beginning - we now have VPS, SPS and other (PPS, SEI...)
if (vpsa) gf_list_insert(param_array, vpsa, 0);
} else {
if (vvcc) gf_odf_vvc_cfg_del(vvcc);
if (hvcc) gf_odf_hevc_cfg_del(hvcc);
}
}
}
break;
case GF_CODECID_AAC_MPEG4:
case GF_CODECID_AAC_MPEG2_MP:
case GF_CODECID_AAC_MPEG2_LCP:
case GF_CODECID_AAC_MPEG2_SSRP:
//we cannot disable mpeg4 payload type, compute default values !!
if (!const_dur || !average_size || !max_tsdelta || !max_size) {
const_dur = (u32) gf_timestamp_rescale(1024, samplerate, stream->timescale);
max_tsdelta = const_dur;
average_size = 500;
max_size = 1000;
GF_LOG(GF_LOG_WARNING, GF_LOG_RTP, ("[RTPOut] AAC stream detected but not information available on average size/tsdelta/duration, assuming const dur %d max_tsdelta %d average size %d max size %d\n", const_dur, max_tsdelta, average_size, max_size));
}
if (use_latm)
flags |= GP_RTP_PCK_USE_LATM_AAC;
break;
}
if (max_cts_offset==(u32)-1) {
if (stream->streamtype==GF_STREAM_VISUAL) {
disable_mpeg4 = GF_TRUE;
}
max_cts_offset = 0;
}
if (!disable_mpeg4 && use_mpeg4_signaling)
flags = GP_RTP_PCK_SIGNAL_RAP | GP_RTP_PCK_FORCE_MPEG4;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_ID);
stream->id = p ? p->value.uint : 0;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_BITRATE);
bandwidth = p ? p->value.uint : 0;
if (codecid==GF_CODECID_AAC_MPEG4)
if (is_crypted) {
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_ISMA_SELECTIVE_ENC);
if (p->value.boolean) {
flags |= GP_RTP_PCK_SELECTIVE_ENCRYPTION;
}
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_ISMA_IV_LENGTH);
IV_length = p ? p->value.uint : 0;
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_ISMA_KI_LENGTH);
KI_length = p ? p->value.uint : 0;
}
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_DEPENDENCY_ID);
if (p) stream->depends_on = p->value.uint;
/*init packetizer*/
stream->rtp = gf_rtp_streamer_new(stream->streamtype, codecid, stream->timescale,
(char *) ipdest, stream->port, mtu, ttl, ifce,
flags, dsi, dsi_len,
payt, samplerate, nb_ch,
is_crypted, IV_length, KI_length,
average_size, max_size, max_tsdelta, max_cts_offset, const_dur, bandwidth, max_ptime, au_sn_len, is_rtsp);
if (!stream->rtp) {
GF_LOG(GF_LOG_ERROR, GF_LOG_RTP, ("[RTPOut] Could not initialize RTP for stream %s: not supported\n", gf_filter_pid_get_name(stream->pid) ));
return GF_NOT_SUPPORTED;
}
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_DELAY);
stream->ts_delay = p ? p->value.longsint : 0;
payt++;
stream->microsec_ts_scale_frac.num = 1000000;
stream->microsec_ts_scale_frac.den = stream->timescale;
while (! (stream->microsec_ts_scale_frac.num % 10) && ! (stream->microsec_ts_scale_frac.den % 10)) {
stream->microsec_ts_scale_frac.num /= 10;
stream->microsec_ts_scale_frac.den /= 10;
}
p = gf_filter_pid_get_property(stream->pid, GF_PROP_PID_DEPENDENCY_ID);
if (p) {
*base_pid_id = p->value.uint;
gf_rtp_streamer_disable_auto_rtcp(stream->rtp);
}
return GF_OK;
}
static GF_Err rtpout_setup_sdp(GF_RTPOutCtx *ctx)
{
FILE *sdp_out;
u32 fsize;
GF_Err e;
u64 sess_id=0;
u8 *output;
const char *ip = ctx->ip;
if (!ip) ip = "127.0.0.1";
if (ctx->single_stream) return GF_OK;
e = rtpout_create_sdp(ctx->streams, GF_FALSE, ip, ctx->info, "livesession", ctx->url, ctx->email, ctx->base_pid_id, &sdp_out, &sess_id);
if (e) return e;
fsize = (u32) gf_ftell(sdp_out);
GF_FilterPacket *pck = gf_filter_pck_new_alloc(ctx->opid, fsize, &output);
if (pck) {
gf_fseek(sdp_out, 0, SEEK_SET);
u32 read = (u32) gf_fread(output, fsize, sdp_out);
if (read != fsize) {
GF_LOG(GF_LOG_ERROR, GF_LOG_RTP, ("[RTPOut] Failed to read SDP from temp file, got %d bytes but expecting %d\n", read, fsize));
gf_filter_pck_discard(pck);
e = GF_IO_ERR;
} else {
char c = output[fsize-1];
output[fsize-1] = 0;
GF_LOG(GF_LOG_INFO, GF_LOG_RTP, ("[RTPOut] SDP file generated: %s\n", output));
output[fsize-1] = c;
gf_filter_pck_set_framing(pck, GF_TRUE, GF_TRUE);
gf_filter_pck_send(pck);
e = GF_OK;
}
} else {
e = GF_OUT_OF_MEM;
}
gf_fclose(sdp_out);
return e;
}
static u16 rtpout_check_next_port(GF_RTPOutCtx *ctx, u16 first_port)
{
u32 i, count = gf_list_count(ctx->streams);
for (i=0;i<count; i++) {
GF_RTPOutStream *stream = gf_list_get(ctx->streams, i);
if (stream->port==first_port) {
return rtpout_check_next_port(ctx, (u16) (first_port+2) );
}
}
return first_port;
}
void rtpout_del_stream(GF_RTPOutStream *st)
{
if (st->rtp) gf_rtp_streamer_del(st->rtp);
if (st->pck) gf_filter_pid_drop_packet(st->pid);
if (st->avcc)
gf_odf_avc_cfg_del(st->avcc);
if (st->hvcc)
gf_odf_hevc_cfg_del(st->hvcc);
if (st->vvcc)
gf_odf_vvc_cfg_del(st->vvcc);
gf_free(st);
}
static GF_Err rtpout_configure_pid(GF_Filter *filter, GF_FilterPid *pid, Bool is_remove)
{
GF_RTPOutCtx *ctx = (GF_RTPOutCtx *) gf_filter_get_udta(filter);
GF_Err e = GF_OK;
GF_RTPOutStream *stream;
u16 first_port;
u32 streamType, payt;
const GF_PropertyValue *p;
first_port = ctx->port;
if (is_remove) {
GF_RTPOutStream *t =gf_filter_pid_get_udta(pid);
if (t) {
if (ctx->active_stream==t) ctx->active_stream = NULL;
gf_list_del_item(ctx->streams, t);
rtpout_del_stream(t);
}
if (!gf_list_count(ctx->streams)) {
if (ctx->opid) gf_filter_pid_set_eos(ctx->opid);
return GF_EOS;
}
return GF_OK;
}
stream = gf_filter_pid_get_udta(pid);
p = gf_filter_pid_get_property(pid, GF_PROP_PID_STREAM_TYPE);
streamType = p ? p->value.uint : 0;
switch (streamType) {
case GF_STREAM_VISUAL:
case GF_STREAM_AUDIO:
break;
case GF_STREAM_FILE:
case GF_STREAM_UNKNOWN:
if (stream) {
if (ctx->active_stream==stream) ctx->active_stream = NULL;
gf_list_del_item(ctx->streams, stream);
rtpout_del_stream(stream);
}
if (!ctx->dst)
return GF_FILTER_NOT_SUPPORTED;
p = gf_filter_pid_get_property(pid, GF_PROP_PID_MIME);
if (p && p->value.string && !strcmp(p->value.string, "video/mpeg-2")) {
ctx->single_stream = 2;
} else {
p = gf_filter_pid_get_property(pid, GF_PROP_PID_FILE_EXT);
if (p && p->value.string && !strcmp(p->value.string, "ts")) {
ctx->single_stream = 2;
} else {
return GF_FILTER_NOT_SUPPORTED;
}
}
break;
default:
break;
}
if (!stream) {
GF_SAFEALLOC(stream, GF_RTPOutStream);
if (!stream) return GF_OUT_OF_MEM;
gf_list_add(ctx->streams, stream);
stream->pid = pid;
stream->streamtype = streamType;
stream->min_dts = GF_FILTER_NO_TS;
gf_filter_pid_set_udta(pid, stream);
if (ctx->single_stream) {
GF_FilterEvent evt;
gf_filter_pid_init_play_event(pid, &evt, 0, 1.0, "RTPOut");
gf_filter_pid_send_event(pid, &evt);
}
}
if (!ctx->single_stream) {
if (!ctx->opid) {
ctx->opid = gf_filter_pid_new(filter);
}
gf_filter_pid_copy_properties(ctx->opid, pid);
gf_filter_pid_set_property(ctx->opid, GF_PROP_PID_STREAM_TYPE, &PROP_UINT(GF_STREAM_FILE) );
gf_filter_pid_set_property(ctx->opid, GF_PROP_PID_DECODER_CONFIG, NULL );
gf_filter_pid_set_property(ctx->opid, GF_PROP_PID_CODECID, NULL );
gf_filter_pid_set_property(ctx->opid, GF_PROP_PID_FILE_EXT, &PROP_STRING("sdp") );
gf_filter_pid_set_name(ctx->opid, "SDP");
} else {
char *dst = ctx->dst+6;
char *sep = strchr(dst, ':');
if (sep) {
first_port = ctx->port = atoi(sep+1);
sep[0] = 0;
if (ctx->ip) gf_free(ctx->ip);
ctx->ip = gf_strdup(dst);
sep[0] = ':';
}
}
stream->port = rtpout_check_next_port(ctx, first_port);
payt = ctx->payt + gf_list_find(ctx->streams, stream);
//init rtp
e = rtpout_init_streamer(stream, ctx->ip ? ctx->ip : "127.0.0.1", ctx->xps, ctx->mpeg4, ctx->latm, payt, ctx->mtu, ctx->ttl, ctx->ifce, GF_FALSE, &ctx->base_pid_id, ctx->single_stream);
if (e) return e;
stream->selected = GF_TRUE;
if (ctx->loop) {
p = gf_filter_pid_get_property(pid, GF_PROP_PID_PLAYBACK_MODE);
if (!p || (p->value.uint<GF_PLAYBACK_MODE_FASTFORWARD)) {
ctx->loop = GF_FALSE;
GF_LOG(GF_LOG_ERROR, GF_LOG_RTP, ("[RTPOut] PID %s cannot be seek, disabling loop\n", gf_filter_pid_get_name(pid) ));
}
}
return GF_OK;
}
static GF_Err rtpout_initialize(GF_Filter *filter)
{
GF_RTPOutCtx *ctx = (GF_RTPOutCtx *) gf_filter_get_udta(filter);
if (!ctx->payt) ctx->payt = 96;
if (!ctx->port) ctx->port = 7000;
if (!ctx->mtu) ctx->mtu = 1450;
if (ctx->payt<96) ctx->payt = 96;
if (ctx->payt>127) ctx->payt = 127;
ctx->streams = gf_list_new();
if (ctx->dst && (ctx->ext || ctx->mime) ) {
//static cap, streamtype = file
ctx->in_caps[0].code = GF_PROP_PID_STREAM_TYPE;
ctx->in_caps[0].val = PROP_UINT(GF_STREAM_FILE);
ctx->in_caps[0].flags = GF_CAPS_INPUT_STATIC;
if (ctx->mime) {
ctx->in_caps[1].code = GF_PROP_PID_MIME;
ctx->in_caps[1].val = PROP_NAME( ctx->mime );
ctx->in_caps[1].flags = GF_CAPS_INPUT;
} else {
strncpy(ctx->szExt, ctx->ext, 9);
ctx->szExt[9] = 0;
strlwr(ctx->szExt);
ctx->in_caps[1].code = GF_PROP_PID_FILE_EXT;
ctx->in_caps[1].val = PROP_NAME( ctx->szExt );
ctx->in_caps[1].flags = GF_CAPS_INPUT;
}
gf_filter_override_caps(filter, ctx->in_caps, 2);
gf_filter_set_max_extra_input_pids(filter, 0);
ctx->single_stream = GF_TRUE;
}
return GF_OK;
}
static void rtpout_finalize(GF_Filter *filter)
{
GF_RTPOutCtx *ctx = (GF_RTPOutCtx *) gf_filter_get_udta(filter);
while (gf_list_count(ctx->streams)) {
GF_RTPOutStream *tmp = gf_list_pop_back(ctx->streams);
rtpout_del_stream(tmp);
}
gf_list_del(ctx->streams);
}
static GF_Err rtpout_send_xps(GF_RTPOutStream *stream, GF_List *pslist, Bool *au_start, u32 pck_size, u32 cts, u32 dts, u32 duration)
{
GF_Err e;
u32 i, count = gf_list_count(pslist);
for (i=0; i<count; i++) {
GF_NALUFFParam *sl = gf_list_get(pslist, i);
e = gf_rtp_streamer_send_data(stream->rtp, (char *) sl->data, sl->size, pck_size, cts, dts, stream->current_sap ? 1 : 0, *au_start, GF_FALSE, stream->pck_num, duration, stream->sample_desc_index);
if (e) return e;
*au_start = GF_FALSE;
}
return GF_OK;
}
static Bool rtpout_init_clock(GF_RTPOutCtx *ctx)
{
GF_Err e;
u64 min_dts = GF_FILTER_NO_TS;
u32 i, count = gf_list_count(ctx->streams);
for (i=0; i<count; i++) {
u64 dts;
GF_RTPOutStream *stream = gf_list_get(ctx->streams, i);
GF_FilterPacket *pck = gf_filter_pid_get_packet(stream->pid);
if (!pck) return GF_FALSE;
dts = gf_filter_pck_get_dts(pck);
if (dts==GF_FILTER_NO_TS)
dts = gf_filter_pck_get_cts(pck);
if (dts==GF_FILTER_NO_TS) dts=0;
dts = gf_timestamp_rescale(dts, stream->timescale, 1000000);
if (min_dts > dts)
min_dts = dts;
if (ctx->tso>0) {
u64 offset = gf_timestamp_rescale(ctx->tso, 1000000, stream->timescale);
stream->rtp_ts_offset = (u32) offset;
}
}
ctx->sys_clock_at_init = gf_sys_clock_high_res();
ctx->microsec_ts_init = min_dts;
GF_LOG(GF_LOG_INFO, GF_LOG_RTP, ("[RTPOut] RTP clock initialized - time origin set to "LLU" us (sys clock) / "LLU" us (media clock)\n", ctx->sys_clock_at_init, ctx->microsec_ts_init));
if (ctx->tso<0) {
gf_rand_init(GF_FALSE);
for (i=0; i<count; i++) {
GF_RTPOutStream *stream = gf_list_get(ctx->streams, i);
stream->rtp_ts_offset = gf_rand();
GF_LOG(GF_LOG_INFO, GF_LOG_RTP, ("[RTPOut] RTP stream %d initial RTP TS set to %d\n", i+1, stream->rtp_ts_offset));
}
}
e = rtpout_setup_sdp(ctx);
if (e) return e;
if (ctx->runfor==0) {
for (i=0; i<count; i++) {
GF_RTPOutStream *stream = gf_list_get(ctx->streams, i);
gf_filter_pid_set_discard(stream->pid, GF_TRUE);
}
}
return GF_TRUE;
}
GF_Err rtpout_process_rtp(GF_List *streams, GF_RTPOutStream **active_stream, Bool loop, s32 delay, u32 *active_stream_idx, u64 sys_clock_at_init, u64 *active_min_ts_microsec, u64 microsec_ts_init, Bool *wait_for_loop, u32 *repost_delay_us, Bool *first_RTCP_sent, u32 base_pid_id)
{
GF_Err e = GF_OK;
GF_RTPOutStream *stream;
u32 duration, i, count;
s64 diff;
u64 clock;
const char *pck_data;
u32 pck_size;
u32 dts, cts;
/*browse all inputs and locate most mature stream*/
if (! *active_stream) {
u32 nb_eos = 0;
count = gf_list_count(streams);
*active_min_ts_microsec = (u64) -1;
for (i=0; i<count; i++) {
stream = gf_list_get(streams, i);
if (!stream->rtp) continue;
/*load next AU*/
if (!stream->pck) {
u64 ts;
stream->pck = gf_filter_pid_get_packet(stream->pid);
if (!stream->pck) {
if (gf_filter_pid_is_eos(stream->pid)) {
//flush stream
if (!stream->bye_sent) {
stream->bye_sent = GF_TRUE;
gf_rtp_streamer_send_au(stream->rtp, NULL, 0, 0, 0, GF_FALSE);
gf_rtp_streamer_send_bye(stream->rtp);
}
nb_eos++;
}
continue;
}
stream->current_dts = gf_filter_pck_get_dts(stream->pck);
//if CTS is not set, use prev packet CTS
ts = gf_filter_pck_get_cts(stream->pck);
if (ts==GF_FILTER_NO_TS) ts = stream->current_cts;
stream->current_cts = ts;
stream->current_sap = gf_filter_pck_get_sap(stream->pck);
duration = gf_filter_pck_get_duration(stream->pck);
if (duration) stream->current_duration = duration;
if (stream->current_dts==GF_FILTER_NO_TS)
stream->current_dts = stream->current_cts;
if (stream->min_dts==GF_FILTER_NO_TS) {
stream->min_dts = stream->current_dts;
}
stream->microsec_dts = (u64) (stream->microsec_ts_scale_frac.num * (s64) stream->current_dts);
stream->microsec_dts /= stream->microsec_ts_scale_frac.den;
stream->microsec_dts += stream->microsec_ts_offset + sys_clock_at_init;
if (stream->microsec_dts < microsec_ts_init) {
stream->microsec_dts = 0;
GF_LOG(GF_LOG_WARNING, GF_LOG_RTP, ("[RTPOut] next RTP packet (stream %d) has a timestamp "LLU" less than initial timestamp "LLU" - forcing to 0\n", i+1, stream->microsec_dts, microsec_ts_init));
} else {
stream->microsec_dts -= microsec_ts_init;
}
if (stream->current_sap>GF_FILTER_SAP_3) stream->current_sap = 0;
stream->pck_num++;
*wait_for_loop = GF_FALSE;
}
/*check timing*/
if (stream->pck) {
if (*active_min_ts_microsec > stream->microsec_dts) {
*active_min_ts_microsec = stream->microsec_dts;
*active_stream = stream;
*active_stream_idx = i+1;
}
}
}
/*no input data ...*/
if (! *active_stream) {
if (nb_eos==count) {
u64 max_dur = 0;
if (!loop)
return GF_EOS;
for (i=0; i<count; i++) {
stream = gf_list_get(streams, i);
u64 dur = stream->current_dts + stream->current_duration - stream->min_dts;
dur = gf_timestamp_rescale(dur, stream->timescale, 1000000);
if (max_dur < dur) {
max_dur = dur;
}
}
if (*wait_for_loop)
return GF_OK;
GF_LOG(GF_LOG_INFO, GF_LOG_RTP, ("[RTPOut] RTP session done, looping source\n"));
*wait_for_loop = GF_TRUE;
for (i=0; i<count; i++) {
GF_FilterEvent evt;
const GF_PropertyValue *p;
stream = gf_list_get(streams, i);
p = gf_filter_pid_get_property(stream->pid, GF_PROP_NO_TS_LOOP);
if (!p || !p->value.boolean) {
u64 new_ts = gf_timestamp_rescale(max_dur, 1000000, stream->timescale);
stream->ts_offset += new_ts;
stream->microsec_ts_offset = (u64) gf_timestamp_rescale(stream->ts_offset, stream->timescale, 1000000) + sys_clock_at_init;
}
//loop pid: stop and play
GF_FEVT_INIT(evt, GF_FEVT_STOP, stream->pid);
gf_filter_pid_send_event(stream->pid, &evt);
GF_FEVT_INIT(evt, GF_FEVT_PLAY, stream->pid);
gf_filter_pid_send_event(stream->pid, &evt);
}
}
return GF_OK;
}
}
stream = *active_stream;
clock = gf_sys_clock_high_res();
diff = (s64) *active_min_ts_microsec;
diff += ((s64) delay) * 1000;
diff -= (s64) clock;
if (diff > 1000) {
u64 repost_in;
//if more than 11 secs ahead of time, ask for delay minus one second, otherwise ask for half the delay
if (diff<=11000) repost_in = diff/3;
else repost_in = diff - 10000;
*repost_delay_us = (u32) repost_in;
GF_LOG(GF_LOG_DEBUG, GF_LOG_RTP, ("[RTPOut] next RTP packet (stream %d DTS "LLU") scheduled in "LLU" us, requesting filter reschedule in "LLU" us - clock "LLU" us\n", *active_stream_idx, stream->current_dts, diff, repost_in, clock));
return GF_OK;
} else if (diff<=-1000) {
GF_LOG(GF_LOG_WARNING, GF_LOG_RTP, ("[RTPOut] RTP session stream %d - sending packet %d (DTS "LLU") too late by %d us - clock "LLU" us\n", *active_stream_idx, stream->pck_num, stream->current_dts, -diff, clock));
} else if (diff>0){
GF_LOG(GF_LOG_DEBUG, GF_LOG_RTP, ("[RTPOut] RTP session stream %d - sending packet %d (DTS "LLU") ahead of %d us - clock "LLU" us\n", *active_stream_idx, stream->pck_num, stream->current_dts, diff, clock));
}
/*send packets*/
pck_data = gf_filter_pck_get_data(stream->pck, &pck_size);
if (!pck_size) {
gf_filter_pid_drop_packet(stream->pid);
stream->pck = NULL;
*active_stream = NULL;
return GF_OK;
}
dts = (u32) (stream->current_dts + stream->ts_offset);
cts = (u32) (stream->current_cts + stream->ts_offset);
duration = stream->current_duration;
dts += stream->rtp_ts_offset;
cts += stream->rtp_ts_offset;