Commit 4098f809 authored by Paul B Mahol's avatar Paul B Mahol Committed by Marton Balint

libavformat: add librist protocol

This work is sponsored by Open Broadcast Systems.
Signed-off-by: 's avatarPaul B Mahol <onemda@gmail.com>
parent e93403b7
......@@ -259,6 +259,7 @@ External library support:
--enable-libpulse enable Pulseaudio input via libpulse [no]
--enable-librabbitmq enable RabbitMQ library [no]
--enable-librav1e enable AV1 encoding via rav1e [no]
--enable-librist enable RIST via librist [no]
--enable-librsvg enable SVG rasterization via librsvg [no]
--enable-librubberband enable rubberband needed for rubberband filter [no]
--enable-librtmp enable RTMP[E] support via librtmp [no]
......@@ -1797,6 +1798,7 @@ EXTERNAL_LIBRARY_LIST="
libpulse
librabbitmq
librav1e
librist
librsvg
librtmp
libshine
......@@ -3491,6 +3493,8 @@ unix_protocol_select="network"
# external library protocols
libamqp_protocol_deps="librabbitmq"
libamqp_protocol_select="network"
librist_protocol_deps="librist"
librist_protocol_select="network"
librtmp_protocol_deps="librtmp"
librtmpe_protocol_deps="librtmp"
librtmps_protocol_deps="librtmp"
......@@ -6410,6 +6414,7 @@ enabled libopus && {
enabled libpulse && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
enabled librabbitmq && require_pkg_config librabbitmq "librabbitmq >= 0.7.1" amqp.h amqp_new_connection
enabled librav1e && require_pkg_config librav1e "rav1e >= 0.4.0" rav1e.h rav1e_context_new
enabled librist && require_pkg_config librist "librist >= 0.2" librist/librist.h rist_receiver_create
enabled librsvg && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
enabled librtmp && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
enabled librubberband && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
......
......@@ -696,6 +696,35 @@ Example usage:
-f rtp_mpegts -fec prompeg=l=8:d=4 rtp://@var{hostname}:@var{port}
@end example
@section rist
Reliable Internet Streaming Transport protocol
The accepted options are:
@table @option
@item rist_profile
Supported values:
@table @samp
@item simple
@item main
This one is default.
@item advanced
@end table
@item buffer_size
Set internal RIST buffer size for retransmission of data.
@item log_level
Set loglevel for RIST logging messages.
@item secret
Set override of encryption secret, by default is unset.
@item encryption
Set encryption type, by default is disabled.
Acceptable values are 128 and 256.
@end table
@section rtmp
Real-Time Messaging Protocol.
......
......@@ -657,6 +657,7 @@ OBJS-$(CONFIG_UNIX_PROTOCOL) += unix.o
# external library protocols
OBJS-$(CONFIG_LIBAMQP_PROTOCOL) += libamqp.o
OBJS-$(CONFIG_LIBRIST_PROTOCOL) += librist.o
OBJS-$(CONFIG_LIBRTMP_PROTOCOL) += librtmp.o
OBJS-$(CONFIG_LIBRTMPE_PROTOCOL) += librtmp.o
OBJS-$(CONFIG_LIBRTMPS_PROTOCOL) += librtmp.o
......
/*
* This file is part of FFmpeg.
*
* FFmpeg 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 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Reliable Internet Streaming Transport protocol
*/
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/time.h"
#include "avformat.h"
#include "internal.h"
#include "network.h"
#include "os_support.h"
#include "url.h"
#include <librist/librist.h>
typedef struct RISTContext {
const AVClass *class;
int queue_count;
int profile;
int buffer_size;
int log_level;
int encryption;
char *secret;
struct rist_logging_settings logging_settings;
struct rist_peer_config peer_config;
struct rist_peer *peer;
struct rist_ctx *ctx;
} RISTContext;
#define D AV_OPT_FLAG_DECODING_PARAM
#define E AV_OPT_FLAG_ENCODING_PARAM
#define OFFSET(x) offsetof(RISTContext, x)
static const AVOption librist_options[] = {
{ "rist_profile","set profile", OFFSET(profile), AV_OPT_TYPE_INT, {.i64=RIST_PROFILE_MAIN}, 0, 2, .flags = D|E, "profile" },
{ "simple", NULL, 0, AV_OPT_TYPE_CONST, {.i64=RIST_PROFILE_SIMPLE}, 0, 0, .flags = D|E, "profile" },
{ "main", NULL, 0, AV_OPT_TYPE_CONST, {.i64=RIST_PROFILE_MAIN}, 0, 0, .flags = D|E, "profile" },
{ "advanced", NULL, 0, AV_OPT_TYPE_CONST, {.i64=RIST_PROFILE_ADVANCED}, 0, 0, .flags = D|E, "profile" },
{ "buffer_size", "set buffer_size", OFFSET(buffer_size), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, .flags = D|E },
{ "log_level", "set loglevel", OFFSET(log_level), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = D|E },
{ "secret", "set encryption secret",OFFSET(secret), AV_OPT_TYPE_STRING,{.str=NULL}, 0, 0, .flags = D|E },
{ "encryption","set encryption type",OFFSET(encryption), AV_OPT_TYPE_INT ,{.i64=0}, 0, INT_MAX, .flags = D|E },
{ NULL }
};
static int risterr2ret(int err)
{
switch (err) {
case RIST_ERR_MALLOC:
return AVERROR(ENOMEM);
default:
return AVERROR_EXTERNAL;
}
}
static int log_cb(void *arg, enum rist_log_level log_level, const char *msg)
{
int level;
switch (log_level) {
case RIST_LOG_ERROR: level = AV_LOG_ERROR; break;
case RIST_LOG_WARN: level = AV_LOG_WARNING; break;
case RIST_LOG_NOTICE: level = AV_LOG_VERBOSE; break;
case RIST_LOG_INFO: level = AV_LOG_INFO; break;
case RIST_LOG_DEBUG: level = AV_LOG_DEBUG; break;
case RIST_LOG_DISABLE: level = AV_LOG_QUIET; break;
case RIST_LOG_SIMULATE: level = AV_LOG_TRACE; break;
default: level = AV_LOG_PANIC;
}
av_log(arg, level, "%s", msg);
return 0;
}
static int librist_close(URLContext *h)
{
RISTContext *s = h->priv_data;
int ret = 0;
s->peer = NULL;
if (s->ctx)
ret = rist_destroy(s->ctx);
s->ctx = NULL;
return risterr2ret(ret);
}
static int librist_open(URLContext *h, const char *uri, int flags)
{
RISTContext *s = h->priv_data;
struct rist_logging_settings *logging_settings = &s->logging_settings;
struct rist_peer_config *peer_config = &s->peer_config;
int ret;
if ((flags & AVIO_FLAG_READ_WRITE) == AVIO_FLAG_READ_WRITE)
return AVERROR(EINVAL);
ret = rist_logging_set(&logging_settings, s->log_level, log_cb, h, NULL, NULL);
if (ret < 0)
return risterr2ret(ret);
if (flags & AVIO_FLAG_WRITE)
ret = rist_sender_create(&s->ctx, s->profile, 0, logging_settings);
if (ret < 0)
goto err;
if (flags & AVIO_FLAG_READ)
ret = rist_receiver_create(&s->ctx, s->profile, logging_settings);
if (ret < 0)
goto err;
ret = rist_peer_config_defaults_set(peer_config);
if (ret < 0)
goto err;
ret = rist_parse_address(uri, (const struct rist_peer_config **)&peer_config);
if (ret < 0)
goto err;
if (((s->encryption == 128 || s->encryption == 256) && !s->secret) ||
((peer_config->key_size == 128 || peer_config->key_size == 256) && !peer_config->secret[0])) {
av_log(h, AV_LOG_ERROR, "secret is mandatory if encryption is enabled\n");
librist_close(h);
return AVERROR(EINVAL);
}
if (s->secret && peer_config->secret[0] == 0)
av_strlcpy(peer_config->secret, s->secret, FFMIN(RIST_MAX_STRING_SHORT - 1, strlen(s->secret)));
if (s->secret && (s->encryption == 128 || s->encryption == 256))
peer_config->key_size = s->encryption;
if (s->buffer_size) {
peer_config->recovery_length_min = s->buffer_size;
peer_config->recovery_length_max = s->buffer_size;
}
ret = rist_peer_create(s->ctx, &s->peer, &s->peer_config);
if (ret < 0)
goto err;
ret = rist_start(s->ctx);
if (ret < 0)
goto err;
h->max_packet_size = 9968;
return 0;
err:
librist_close(h);
return risterr2ret(ret);
}
static int librist_read(URLContext *h, uint8_t *buf, int size)
{
RISTContext *s = h->priv_data;
const struct rist_data_block *data_block;
int ret;
ret = rist_receiver_data_read(s->ctx, &data_block, s->queue_count <= 0 ? POLLING_TIME : 0);
if (ret < 0)
return risterr2ret(ret);
if (ret == 0 || data_block->payload_len <= 0)
return 0;
s->queue_count = ret - 1;
size = data_block->payload_len;
memcpy(buf, data_block->payload, size);
rist_receiver_data_block_free((struct rist_data_block**)&data_block);
return size;
}
static int librist_write(URLContext *h, const uint8_t *buf, int size)
{
RISTContext *s = h->priv_data;
struct rist_data_block data_block = { 0 };
int ret;
data_block.ts_ntp = 0;
data_block.payload = buf;
data_block.payload_len = size;
ret = rist_sender_data_write(s->ctx, &data_block);
if (ret < 0)
return risterr2ret(ret);
return ret;
}
static const AVClass librist_class = {
.class_name = "librist",
.item_name = av_default_item_name,
.option = librist_options,
.version = LIBAVUTIL_VERSION_INT,
};
const URLProtocol ff_librist_protocol = {
.name = "rist",
.url_open = librist_open,
.url_read = librist_read,
.url_write = librist_write,
.url_close = librist_close,
.priv_data_size = sizeof(RISTContext),
.flags = URL_PROTOCOL_FLAG_NETWORK,
.priv_data_class = &librist_class,
};
......@@ -62,6 +62,7 @@ extern const URLProtocol ff_udp_protocol;
extern const URLProtocol ff_udplite_protocol;
extern const URLProtocol ff_unix_protocol;
extern const URLProtocol ff_libamqp_protocol;
extern const URLProtocol ff_librist_protocol;
extern const URLProtocol ff_librtmp_protocol;
extern const URLProtocol ff_librtmpe_protocol;
extern const URLProtocol ff_librtmps_protocol;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment