chasing indexing error

1 files changed, 0 insertions, 563 deletions

diff --git a/ffmpeg/libavformat/rtpproto.c b/ffmpeg/libavformat/rtpproto.c
deleted file mode 100644
index a8cbd97..0000000
--- a/ffmpeg/libavformat/rtpproto.c
+++ /dev/null
@@ -1,563 +0,0 @@
-/*
- * RTP network protocol
- * Copyright (c) 2002 Fabrice Bellard
- *
- * 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
- * RTP protocol
- */
-
-#include "libavutil/parseutils.h"
-#include "libavutil/avstring.h"
-#include "avformat.h"
-#include "avio_internal.h"
-#include "rtp.h"
-#include "rtpproto.h"
-#include "url.h"
-
-#include <stdarg.h>
-#include "internal.h"
-#include "network.h"
-#include "os_support.h"
-#include <fcntl.h>
-#if HAVE_POLL_H
-#include <sys/poll.h>
-#endif
-
-typedef struct RTPContext {
-    URLContext *rtp_hd, *rtcp_hd;
-    int rtp_fd, rtcp_fd, nb_ssm_include_addrs, nb_ssm_exclude_addrs;
-    struct sockaddr_storage **ssm_include_addrs, **ssm_exclude_addrs;
-    int write_to_source;
-    struct sockaddr_storage last_rtp_source, last_rtcp_source;
-    socklen_t last_rtp_source_len, last_rtcp_source_len;
-} RTPContext;
-
-/**
- * If no filename is given to av_open_input_file because you want to
- * get the local port first, then you must call this function to set
- * the remote server address.
- *
- * @param h media file context
- * @param uri of the remote server
- * @return zero if no error.
- */
-
-int ff_rtp_set_remote_url(URLContext *h, const char *uri)
-{
-    RTPContext *s = h->priv_data;
-    char hostname[256];
-    int port, rtcp_port;
-    const char *p;
-
-    char buf[1024];
-    char path[1024];
-
-    av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port,
-                 path, sizeof(path), uri);
-    rtcp_port = port + 1;
-
-    p = strchr(uri, '?');
-    if (p) {
-        if (av_find_info_tag(buf, sizeof(buf), "rtcpport", p)) {
-            rtcp_port = strtol(buf, NULL, 10);
-        }
-    }
-
-    ff_url_join(buf, sizeof(buf), "udp", NULL, hostname, port, "%s", path);
-    ff_udp_set_remote_url(s->rtp_hd, buf);
-
-    ff_url_join(buf, sizeof(buf), "udp", NULL, hostname, rtcp_port, "%s", path);
-    ff_udp_set_remote_url(s->rtcp_hd, buf);
-    return 0;
-}
-
-static struct addrinfo* rtp_resolve_host(const char *hostname, int port,
-                                         int type, int family, int flags)
-{
-    struct addrinfo hints = { 0 }, *res = 0;
-    int error;
-    char service[16];
-
-    snprintf(service, sizeof(service), "%d", port);
-    hints.ai_socktype = type;
-    hints.ai_family   = family;
-    hints.ai_flags    = flags;
-    if ((error = getaddrinfo(hostname, service, &hints, &res))) {
-        res = NULL;
-        av_log(NULL, AV_LOG_ERROR, "rtp_resolve_host: %s\n", gai_strerror(error));
-    }
-
-    return res;
-}
-
-static int compare_addr(const struct sockaddr_storage *a,
-                        const struct sockaddr_storage *b)
-{
-    if (a->ss_family != b->ss_family)
-        return 1;
-    if (a->ss_family == AF_INET) {
-        return (((const struct sockaddr_in *)a)->sin_addr.s_addr !=
-                ((const struct sockaddr_in *)b)->sin_addr.s_addr);
-    }
-
-#if HAVE_STRUCT_SOCKADDR_IN6
-    if (a->ss_family == AF_INET6) {
-        const uint8_t *s6_addr_a = ((const struct sockaddr_in6 *)a)->sin6_addr.s6_addr;
-        const uint8_t *s6_addr_b = ((const struct sockaddr_in6 *)b)->sin6_addr.s6_addr;
-        return memcmp(s6_addr_a, s6_addr_b, 16);
-    }
-#endif
-    return 1;
-}
-
-static int get_port(const struct sockaddr_storage *ss)
-{
-    if (ss->ss_family == AF_INET)
-        return ntohs(((const struct sockaddr_in *)ss)->sin_port);
-#if HAVE_STRUCT_SOCKADDR_IN6
-    if (ss->ss_family == AF_INET6)
-        return ntohs(((const struct sockaddr_in6 *)ss)->sin6_port);
-#endif
-    return 0;
-}
-
-static void set_port(struct sockaddr_storage *ss, int port)
-{
-    if (ss->ss_family == AF_INET)
-        ((struct sockaddr_in *)ss)->sin_port = htons(port);
-#if HAVE_STRUCT_SOCKADDR_IN6
-    else if (ss->ss_family == AF_INET6)
-        ((struct sockaddr_in6 *)ss)->sin6_port = htons(port);
-#endif
-}
-
-static int rtp_check_source_lists(RTPContext *s, struct sockaddr_storage *source_addr_ptr)
-{
-    int i;
-    if (s->nb_ssm_exclude_addrs) {
-        for (i = 0; i < s->nb_ssm_exclude_addrs; i++) {
-            if (!compare_addr(source_addr_ptr, s->ssm_exclude_addrs[i]))
-                return 1;
-        }
-    }
-    if (s->nb_ssm_include_addrs) {
-        for (i = 0; i < s->nb_ssm_include_addrs; i++) {
-            if (!compare_addr(source_addr_ptr, s->ssm_include_addrs[i]))
-                return 0;
-        }
-        return 1;
-    }
-    return 0;
-}
-
-/**
- * add option to url of the form:
- * "http://host:port/path?option1=val1&option2=val2...
- */
-
-static av_printf_format(3, 4) void url_add_option(char *buf, int buf_size, const char *fmt, ...)
-{
-    char buf1[1024];
-    va_list ap;
-
-    va_start(ap, fmt);
-    if (strchr(buf, '?'))
-        av_strlcat(buf, "&", buf_size);
-    else
-        av_strlcat(buf, "?", buf_size);
-    vsnprintf(buf1, sizeof(buf1), fmt, ap);
-    av_strlcat(buf, buf1, buf_size);
-    va_end(ap);
-}
-
-static void build_udp_url(char *buf, int buf_size,
-                          const char *hostname, int port,
-                          int local_port, int ttl,
-                          int max_packet_size, int connect,
-                          const char *include_sources,
-                          const char *exclude_sources)
-{
-    ff_url_join(buf, buf_size, "udp", NULL, hostname, port, NULL);
-    if (local_port >= 0)
-        url_add_option(buf, buf_size, "localport=%d", local_port);
-    if (ttl >= 0)
-        url_add_option(buf, buf_size, "ttl=%d", ttl);
-    if (max_packet_size >=0)
-        url_add_option(buf, buf_size, "pkt_size=%d", max_packet_size);
-    if (connect)
-        url_add_option(buf, buf_size, "connect=1");
-    url_add_option(buf, buf_size, "fifo_size=0");
-    if (include_sources && include_sources[0])
-        url_add_option(buf, buf_size, "sources=%s", include_sources);
-    if (exclude_sources && exclude_sources[0])
-        url_add_option(buf, buf_size, "block=%s", exclude_sources);
-}
-
-static void rtp_parse_addr_list(URLContext *h, char *buf,
-                                struct sockaddr_storage ***address_list_ptr,
-                                int *address_list_size_ptr)
-{
-    struct addrinfo *ai = NULL;
-    struct sockaddr_storage *source_addr;
-    char tmp = '\0', *p = buf, *next;
-
-    /* Resolve all of the IPs */
-
-    while (p && p[0]) {
-        next = strchr(p, ',');
-
-        if (next) {
-            tmp = *next;
-            *next = '\0';
-        }
-
-        ai = rtp_resolve_host(p, 0, SOCK_DGRAM, AF_UNSPEC, 0);
-        if (ai) {
-            source_addr = av_mallocz(sizeof(struct sockaddr_storage));
-            if (!source_addr)
-                break;
-
-            memcpy(source_addr, ai->ai_addr, ai->ai_addrlen);
-            freeaddrinfo(ai);
-            dynarray_add(address_list_ptr, address_list_size_ptr, source_addr);
-        } else {
-            av_log(h, AV_LOG_WARNING, "Unable to resolve %s\n", p);
-        }
-
-        if (next) {
-            *next = tmp;
-            p = next + 1;
-        } else {
-            p = NULL;
-        }
-    }
-}
-
-/**
- * url syntax: rtp://host:port[?option=val...]
- * option: 'ttl=n'            : set the ttl value (for multicast only)
- *         'rtcpport=n'       : set the remote rtcp port to n
- *         'localrtpport=n'   : set the local rtp port to n
- *         'localrtcpport=n'  : set the local rtcp port to n
- *         'pkt_size=n'       : set max packet size
- *         'connect=0/1'      : do a connect() on the UDP socket
- *         'sources=ip[,ip]'  : list allowed source IP addresses
- *         'block=ip[,ip]'    : list disallowed source IP addresses
- *         'write_to_source=0/1' : send packets to the source address of the latest received packet
- * deprecated option:
- *         'localport=n'      : set the local port to n
- *
- * if rtcpport isn't set the rtcp port will be the rtp port + 1
- * if local rtp port isn't set any available port will be used for the local
- * rtp and rtcp ports
- * if the local rtcp port is not set it will be the local rtp port + 1
- */
-
-static int rtp_open(URLContext *h, const char *uri, int flags)
-{
-    RTPContext *s = h->priv_data;
-    int rtp_port, rtcp_port,
-        ttl, connect,
-        local_rtp_port, local_rtcp_port, max_packet_size;
-    char hostname[256], include_sources[1024] = "", exclude_sources[1024] = "";
-    char buf[1024];
-    char path[1024];
-    const char *p;
-    int i, max_retry_count = 3;
-
-    av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &rtp_port,
-                 path, sizeof(path), uri);
-    /* extract parameters */
-    ttl = -1;
-    rtcp_port = rtp_port+1;
-    local_rtp_port = -1;
-    local_rtcp_port = -1;
-    max_packet_size = -1;
-    connect = 0;
-
-    p = strchr(uri, '?');
-    if (p) {
-        if (av_find_info_tag(buf, sizeof(buf), "ttl", p)) {
-            ttl = strtol(buf, NULL, 10);
-        }
-        if (av_find_info_tag(buf, sizeof(buf), "rtcpport", p)) {
-            rtcp_port = strtol(buf, NULL, 10);
-        }
-        if (av_find_info_tag(buf, sizeof(buf), "localport", p)) {
-            local_rtp_port = strtol(buf, NULL, 10);
-        }
-        if (av_find_info_tag(buf, sizeof(buf), "localrtpport", p)) {
-            local_rtp_port = strtol(buf, NULL, 10);
-        }
-        if (av_find_info_tag(buf, sizeof(buf), "localrtcpport", p)) {
-            local_rtcp_port = strtol(buf, NULL, 10);
-        }
-        if (av_find_info_tag(buf, sizeof(buf), "pkt_size", p)) {
-            max_packet_size = strtol(buf, NULL, 10);
-        }
-        if (av_find_info_tag(buf, sizeof(buf), "connect", p)) {
-            connect = strtol(buf, NULL, 10);
-        }
-        if (av_find_info_tag(buf, sizeof(buf), "write_to_source", p)) {
-            s->write_to_source = strtol(buf, NULL, 10);
-        }
-        if (av_find_info_tag(buf, sizeof(buf), "sources", p)) {
-            av_strlcpy(include_sources, buf, sizeof(include_sources));
-            rtp_parse_addr_list(h, buf, &s->ssm_include_addrs, &s->nb_ssm_include_addrs);
-        }
-        if (av_find_info_tag(buf, sizeof(buf), "block", p)) {
-            av_strlcpy(exclude_sources, buf, sizeof(exclude_sources));
-            rtp_parse_addr_list(h, buf, &s->ssm_exclude_addrs, &s->nb_ssm_exclude_addrs);
-        }
-    }
-
-    for (i = 0;i < max_retry_count;i++) {
-        build_udp_url(buf, sizeof(buf),
-                      hostname, rtp_port, local_rtp_port, ttl, max_packet_size,
-                      connect, include_sources, exclude_sources);
-        if (ffurl_open(&s->rtp_hd, buf, flags, &h->interrupt_callback, NULL) < 0)
-            goto fail;
-        local_rtp_port = ff_udp_get_local_port(s->rtp_hd);
-        if(local_rtp_port == 65535) {
-            local_rtp_port = -1;
-            continue;
-        }
-        if (local_rtcp_port<0) {
-            local_rtcp_port = local_rtp_port + 1;
-            build_udp_url(buf, sizeof(buf),
-                          hostname, rtcp_port, local_rtcp_port, ttl, max_packet_size,
-                          connect, include_sources, exclude_sources);
-            if (ffurl_open(&s->rtcp_hd, buf, flags, &h->interrupt_callback, NULL) < 0) {
-                local_rtp_port = local_rtcp_port = -1;
-                continue;
-            }
-            break;
-        }
-        build_udp_url(buf, sizeof(buf),
-                      hostname, rtcp_port, local_rtcp_port, ttl, max_packet_size,
-                      connect, include_sources, exclude_sources);
-        if (ffurl_open(&s->rtcp_hd, buf, flags, &h->interrupt_callback, NULL) < 0)
-            goto fail;
-        break;
-    }
-
-    /* just to ease handle access. XXX: need to suppress direct handle
-       access */
-    s->rtp_fd = ffurl_get_file_handle(s->rtp_hd);
-    s->rtcp_fd = ffurl_get_file_handle(s->rtcp_hd);
-
-    h->max_packet_size = s->rtp_hd->max_packet_size;
-    h->is_streamed = 1;
-    return 0;
-
- fail:
-    if (s->rtp_hd)
-        ffurl_close(s->rtp_hd);
-    if (s->rtcp_hd)
-        ffurl_close(s->rtcp_hd);
-    return AVERROR(EIO);
-}
-
-static int rtp_read(URLContext *h, uint8_t *buf, int size)
-{
-    RTPContext *s = h->priv_data;
-    int len, n, i;
-    struct pollfd p[2] = {{s->rtp_fd, POLLIN, 0}, {s->rtcp_fd, POLLIN, 0}};
-    int poll_delay = h->flags & AVIO_FLAG_NONBLOCK ? 0 : 100;
-    struct sockaddr_storage *addrs[2] = { &s->last_rtp_source, &s->last_rtcp_source };
-    socklen_t *addr_lens[2] = { &s->last_rtp_source_len, &s->last_rtcp_source_len };
-
-    for(;;) {
-        if (ff_check_interrupt(&h->interrupt_callback))
-            return AVERROR_EXIT;
-        n = poll(p, 2, poll_delay);
-        if (n > 0) {
-            /* first try RTCP, then RTP */
-            for (i = 1; i >= 0; i--) {
-                if (!(p[i].revents & POLLIN))
-                    continue;
-                *addr_lens[i] = sizeof(*addrs[i]);
-                len = recvfrom(p[i].fd, buf, size, 0,
-                                (struct sockaddr *)addrs[i], addr_lens[i]);
-                if (len < 0) {
-                    if (ff_neterrno() == AVERROR(EAGAIN) ||
-                        ff_neterrno() == AVERROR(EINTR))
-                        continue;
-                    return AVERROR(EIO);
-                }
-                if (rtp_check_source_lists(s, addrs[i]))
-                    continue;
-                return len;
-            }
-        } else if (n < 0) {
-            if (ff_neterrno() == AVERROR(EINTR))
-                continue;
-            return AVERROR(EIO);
-        }
-        if (h->flags & AVIO_FLAG_NONBLOCK)
-            return AVERROR(EAGAIN);
-    }
-    return len;
-}
-
-static int rtp_write(URLContext *h, const uint8_t *buf, int size)
-{
-    RTPContext *s = h->priv_data;
-    int ret;
-    URLContext *hd;
-
-    if (size < 2)
-        return AVERROR(EINVAL);
-
-    if (s->write_to_source) {
-        int fd;
-        struct sockaddr_storage *source, temp_source;
-        socklen_t *source_len, temp_len;
-        if (!s->last_rtp_source.ss_family && !s->last_rtcp_source.ss_family) {
-            av_log(h, AV_LOG_ERROR,
-                   "Unable to send packet to source, no packets received yet\n");
-            // Intentionally not returning an error here
-            return size;
-        }
-
-        if (RTP_PT_IS_RTCP(buf[1])) {
-            fd = s->rtcp_fd;
-            source     = &s->last_rtcp_source;
-            source_len = &s->last_rtcp_source_len;
-        } else {
-            fd = s->rtp_fd;
-            source     = &s->last_rtp_source;
-            source_len = &s->last_rtp_source_len;
-        }
-        if (!source->ss_family) {
-            source      = &temp_source;
-            source_len  = &temp_len;
-            if (RTP_PT_IS_RTCP(buf[1])) {
-                temp_source = s->last_rtp_source;
-                temp_len    = s->last_rtp_source_len;
-                set_port(source, get_port(source) + 1);
-                av_log(h, AV_LOG_INFO,
-                       "Not received any RTCP packets yet, inferring peer port "
-                       "from the RTP port\n");
-            } else {
-                temp_source = s->last_rtcp_source;
-                temp_len    = s->last_rtcp_source_len;
-                set_port(source, get_port(source) - 1);
-                av_log(h, AV_LOG_INFO,
-                       "Not received any RTP packets yet, inferring peer port "
-                       "from the RTCP port\n");
-            }
-        }
-
-        if (!(h->flags & AVIO_FLAG_NONBLOCK)) {
-            ret = ff_network_wait_fd(fd, 1);
-            if (ret < 0)
-                return ret;
-        }
-        ret = sendto(fd, buf, size, 0, (struct sockaddr *) source,
-                     *source_len);
-
-        return ret < 0 ? ff_neterrno() : ret;
-    }
-
-    if (RTP_PT_IS_RTCP(buf[1])) {
-        /* RTCP payload type */
-        hd = s->rtcp_hd;
-    } else {
-        /* RTP payload type */
-        hd = s->rtp_hd;
-    }
-
-    ret = ffurl_write(hd, buf, size);
-    return ret;
-}
-
-static int rtp_close(URLContext *h)
-{
-    RTPContext *s = h->priv_data;
-    int i;
-
-    for (i = 0; i < s->nb_ssm_include_addrs; i++)
-        av_free(s->ssm_include_addrs[i]);
-    av_freep(&s->ssm_include_addrs);
-    for (i = 0; i < s->nb_ssm_exclude_addrs; i++)
-        av_free(s->ssm_exclude_addrs[i]);
-    av_freep(&s->ssm_exclude_addrs);
-
-    ffurl_close(s->rtp_hd);
-    ffurl_close(s->rtcp_hd);
-    return 0;
-}
-
-/**
- * Return the local rtp port used by the RTP connection
- * @param h media file context
- * @return the local port number
- */
-
-int ff_rtp_get_local_rtp_port(URLContext *h)
-{
-    RTPContext *s = h->priv_data;
-    return ff_udp_get_local_port(s->rtp_hd);
-}
-
-/**
- * Return the local rtcp port used by the RTP connection
- * @param h media file context
- * @return the local port number
- */
-
-int ff_rtp_get_local_rtcp_port(URLContext *h)
-{
-    RTPContext *s = h->priv_data;
-    return ff_udp_get_local_port(s->rtcp_hd);
-}
-
-static int rtp_get_file_handle(URLContext *h)
-{
-    RTPContext *s = h->priv_data;
-    return s->rtp_fd;
-}
-
-static int rtp_get_multi_file_handle(URLContext *h, int **handles,
-                                     int *numhandles)
-{
-    RTPContext *s = h->priv_data;
-    int *hs       = *handles = av_malloc(sizeof(**handles) * 2);
-    if (!hs)
-        return AVERROR(ENOMEM);
-    hs[0] = s->rtp_fd;
-    hs[1] = s->rtcp_fd;
-    *numhandles = 2;
-    return 0;
-}
-
-URLProtocol ff_rtp_protocol = {
-    .name                      = "rtp",
-    .url_open                  = rtp_open,
-    .url_read                  = rtp_read,
-    .url_write                 = rtp_write,
-    .url_close                 = rtp_close,
-    .url_get_file_handle       = rtp_get_file_handle,
-    .url_get_multi_file_handle = rtp_get_multi_file_handle,
-    .priv_data_size            = sizeof(RTPContext),
-    .flags                     = URL_PROTOCOL_FLAG_NETWORK,
-};