[FFmpeg-devel] [PATCH v2 1/3] avformat/udp: return the error code instead of generic EIO
lance.lmwang at gmail.com
lance.lmwang at gmail.com
Fri Jan 8 02:57:41 EET 2021
On Thu, Jan 07, 2021 at 05:07:32PM +0100, Marton Balint wrote:
>
>
> On Thu, 7 Jan 2021, lance.lmwang at gmail.com wrote:
>
> > From: Limin Wang <lance.lmwang at gmail.com>
> >
> > Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> > ---
> > libavformat/udp.c | 47 +++++++++++++++++++++++------------------------
> > 1 file changed, 23 insertions(+), 24 deletions(-)
> >
> > diff --git a/libavformat/udp.c b/libavformat/udp.c
> > index 13c346a..798b789 100644
> > --- a/libavformat/udp.c
> > +++ b/libavformat/udp.c
> > @@ -633,6 +633,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > char buf[256];
> > struct sockaddr_storage my_addr;
> > socklen_t len;
> > + int ret = AVERROR(EIO);
> >
> > h->is_streamed = 1;
> >
> > @@ -641,12 +642,12 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_RX_BUF_SIZE;
> >
> > if (s->sources) {
> > - if (ff_ip_parse_sources(h, s->sources, &s->filters) < 0)
> > + if ((ret = ff_ip_parse_sources(h, s->sources, &s->filters)) < 0)
> > goto fail;
> > }
> >
> > if (s->block) {
> > - if (ff_ip_parse_blocks(h, s->block, &s->filters) < 0)
> > + if ((ret = ff_ip_parse_blocks(h, s->block, &s->filters)) < 0)
> > goto fail;
> > }
> >
> > @@ -712,11 +713,11 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > av_strlcpy(localaddr, buf, sizeof(localaddr));
> > }
> > if (av_find_info_tag(buf, sizeof(buf), "sources", p)) {
> > - if (ff_ip_parse_sources(h, buf, &s->filters) < 0)
> > + if ((ret = ff_ip_parse_sources(h, buf, &s->filters)) < 0)
> > goto fail;
> > }
> > if (av_find_info_tag(buf, sizeof(buf), "block", p)) {
> > - if (ff_ip_parse_blocks(h, buf, &s->filters) < 0)
> > + if ((ret = ff_ip_parse_blocks(h, buf, &s->filters)) < 0)
> > goto fail;
> > }
> > if (!is_output && av_find_info_tag(buf, sizeof(buf), "timeout", p))
> > @@ -742,7 +743,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > if (!(flags & AVIO_FLAG_READ))
> > goto fail;
> > } else {
> > - if (ff_udp_set_remote_url(h, uri) < 0)
> > + if ((ret = ff_udp_set_remote_url(h, uri)) < 0)
> > goto fail;
> > }
> >
> > @@ -763,13 +764,13 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > */
> > if (s->reuse_socket > 0 || (s->is_multicast && s->reuse_socket < 0)) {
> > s->reuse_socket = 1;
> > - if (setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0)
> > + if ((ret = setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket))) != 0)
>
> ff_neterrno() has to be used here and in a lot of places below to get proper
> return value.
OK, will update to use ff_neterrno() to get the proper error code..
>
> Regards,
> Marton
>
> > goto fail;
> > }
> >
> > if (s->is_broadcast) {
> > #ifdef SO_BROADCAST
> > - if (setsockopt (udp_fd, SOL_SOCKET, SO_BROADCAST, &(s->is_broadcast), sizeof(s->is_broadcast)) != 0)
> > + if ((ret = setsockopt (udp_fd, SOL_SOCKET, SO_BROADCAST, &(s->is_broadcast), sizeof(s->is_broadcast))) != 0)
> > #endif
> > goto fail;
> > }
> > @@ -779,16 +780,16 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > * Otherwise, the receiver will drop all packets.
> > */
> > if (s->udplite_coverage) {
> > - if (setsockopt (udp_fd, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV, &(s->udplite_coverage), sizeof(s->udplite_coverage)) != 0)
> > + if ((ret = setsockopt (udp_fd, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV, &(s->udplite_coverage), sizeof(s->udplite_coverage))) != 0)
> > av_log(h, AV_LOG_WARNING, "socket option UDPLITE_SEND_CSCOV not available");
> >
> > - if (setsockopt (udp_fd, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV, &(s->udplite_coverage), sizeof(s->udplite_coverage)) != 0)
> > + if ((ret = setsockopt (udp_fd, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV, &(s->udplite_coverage), sizeof(s->udplite_coverage))) != 0)
> > av_log(h, AV_LOG_WARNING, "socket option UDPLITE_RECV_CSCOV not available");
> > }
> >
> > if (dscp >= 0) {
> > dscp <<= 2;
> > - if (setsockopt (udp_fd, IPPROTO_IP, IP_TOS, &dscp, sizeof(dscp)) != 0)
> > + if ((ret = setsockopt (udp_fd, IPPROTO_IP, IP_TOS, &dscp, sizeof(dscp))) != 0)
> > goto fail;
> > }
> >
> > @@ -802,7 +803,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > /* bind to the local address if not multicast or if the multicast
> > * bind failed */
> > /* the bind is needed to give a port to the socket now */
> > - if (bind_ret < 0 && bind(udp_fd,(struct sockaddr *)&my_addr, len) < 0) {
> > + if (bind_ret < 0 && (ret = bind(udp_fd,(struct sockaddr *)&my_addr, len)) < 0) {
> > ff_log_net_error(h, AV_LOG_ERROR, "bind failed");
> > goto fail;
> > }
> > @@ -814,28 +815,28 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > if (s->is_multicast) {
> > if (h->flags & AVIO_FLAG_WRITE) {
> > /* output */
> > - if (udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr) < 0)
> > + if ((ret = udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr)) < 0)
> > goto fail;
> > }
> > if (h->flags & AVIO_FLAG_READ) {
> > /* input */
> > if (s->filters.nb_include_addrs) {
> > - if (udp_set_multicast_sources(h, udp_fd,
> > + if ((ret = udp_set_multicast_sources(h, udp_fd,
> > (struct sockaddr *)&s->dest_addr,
> > s->dest_addr_len, &s->local_addr_storage,
> > s->filters.include_addrs,
> > - s->filters.nb_include_addrs, 1) < 0)
> > + s->filters.nb_include_addrs, 1)) < 0)
> > goto fail;
> > } else {
> > - if (udp_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr,(struct sockaddr *)&s->local_addr_storage) < 0)
> > + if ((ret = udp_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr,(struct sockaddr *)&s->local_addr_storage)) < 0)
> > goto fail;
> > }
> > if (s->filters.nb_exclude_addrs) {
> > - if (udp_set_multicast_sources(h, udp_fd,
> > + if ((ret = udp_set_multicast_sources(h, udp_fd,
> > (struct sockaddr *)&s->dest_addr,
> > s->dest_addr_len, &s->local_addr_storage,
> > s->filters.exclude_addrs,
> > - s->filters.nb_exclude_addrs, 0) < 0)
> > + s->filters.nb_exclude_addrs, 0)) < 0)
> > goto fail;
> > }
> > }
> > @@ -844,18 +845,18 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > if (is_output) {
> > /* limit the tx buf size to limit latency */
> > tmp = s->buffer_size;
> > - if (setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)) < 0) {
> > + if ((ret = setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp))) < 0) {
> > ff_log_net_error(h, AV_LOG_ERROR, "setsockopt(SO_SNDBUF)");
> > goto fail;
> > }
> > } else {
> > /* set udp recv buffer size to the requested value (default UDP_RX_BUF_SIZE) */
> > tmp = s->buffer_size;
> > - if (setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp)) < 0) {
> > + if ((ret = setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp))) < 0) {
> > ff_log_net_error(h, AV_LOG_WARNING, "setsockopt(SO_RECVBUF)");
> > }
> > len = sizeof(tmp);
> > - if (getsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, &len) < 0) {
> > + if ((ret = getsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, &len)) < 0) {
> > ff_log_net_error(h, AV_LOG_WARNING, "getsockopt(SO_RCVBUF)");
> > } else {
> > av_log(h, AV_LOG_DEBUG, "end receive buffer size reported is %d\n", tmp);
> > @@ -867,7 +868,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > ff_socket_nonblock(udp_fd, 1);
> > }
> > if (s->is_connected) {
> > - if (connect(udp_fd, (struct sockaddr *) &s->dest_addr, s->dest_addr_len)) {
> > + if (ret = connect(udp_fd, (struct sockaddr *) &s->dest_addr, s->dest_addr_len)) {
> > ff_log_net_error(h, AV_LOG_ERROR, "connect");
> > goto fail;
> > }
> > @@ -888,8 +889,6 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > }
> >
> > if ((!is_output && s->circular_buffer_size) || (is_output && s->bitrate && s->circular_buffer_size)) {
> > - int ret;
> > -
> > /* start the task going */
> > s->fifo = av_fifo_alloc(s->circular_buffer_size);
> > ret = pthread_mutex_init(&s->mutex, NULL);
> > @@ -923,7 +922,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
> > closesocket(udp_fd);
> > av_fifo_freep(&s->fifo);
> > ff_ip_reset_filters(&s->filters);
> > - return AVERROR(EIO);
> > + return ret;
> > }
> >
> > static int udplite_open(URLContext *h, const char *uri, int flags)
> > --
> > 1.8.3.1
> >
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel at ffmpeg.org
> > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >
> > To unsubscribe, visit link above, or email
> > ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".
--
Thanks,
Limin Wang
More information about the ffmpeg-devel
mailing list