From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 0E65D422C0 for ; Fri, 1 Apr 2022 15:39:19 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id F25D668B124; Fri, 1 Apr 2022 18:39:16 +0300 (EEST) Received: from relay12.mail.gandi.net (relay12.mail.gandi.net [217.70.178.232]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 56E6A687EBB for ; Fri, 1 Apr 2022 18:39:10 +0300 (EEST) Received: from localhost (213-47-68-29.cable.dynamic.surfer.at [213.47.68.29]) (Authenticated sender: michael@niedermayer.cc) by mail.gandi.net (Postfix) with ESMTPSA id 59BBE200006 for ; Fri, 1 Apr 2022 15:39:09 +0000 (UTC) Date: Fri, 1 Apr 2022 17:39:06 +0200 From: Michael Niedermayer To: FFmpeg development discussions and patches Message-ID: <20220401153906.GQ2829255@pb2> References: <20220401000852.156566-1-markg85@gmail.com> <20220401000852.156566-2-markg85@gmail.com> MIME-Version: 1.0 In-Reply-To: Subject: Re: [FFmpeg-devel] [PATCH v11 1/1] avformat: Add IPFS protocol support. X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: multipart/mixed; boundary="===============1106542190531723769==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============1106542190531723769== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="3zpOsOmwAUfUYV4a" Content-Disposition: inline --3zpOsOmwAUfUYV4a Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Apr 01, 2022 at 02:23:23AM +0200, Mark Gaiser wrote: > On Fri, Apr 1, 2022 at 2:09 AM Mark Gaiser wrote: >=20 > > This patch adds support for: > > - ffplay ipfs:// > > - ffplay ipns:// > > > > IPFS data can be played from so called "ipfs gateways". > > A gateway is essentially a webserver that gives access to the > > distributed IPFS network. > > > > This protocol support (ipfs and ipns) therefore translates > > ipfs:// and ipns:// to a http:// url. This resulting url is > > then handled by the http protocol. It could also be https > > depending on the gateway provided. > > > > To use this protocol, a gateway must be provided. > > If you do nothing it will try to find it in your > > $HOME/.ipfs/gateway file. The ways to set it manually are: > > 1. Define a -gateway to the gateway. > > 2. Define $IPFS_GATEWAY with the full http link to the gateway. > > 3. Define $IPFS_PATH and point it to the IPFS data path. > > 4. Have IPFS running in your local user folder (under $HOME/.ipfs). > > > > Signed-off-by: Mark Gaiser > > --- > > configure | 2 + > > doc/protocols.texi | 30 ++++ > > libavformat/Makefile | 2 + > > libavformat/ipfsgateway.c | 328 ++++++++++++++++++++++++++++++++++++++ > > libavformat/protocols.c | 2 + > > 5 files changed, 364 insertions(+) > > create mode 100644 libavformat/ipfsgateway.c > > > > diff --git a/configure b/configure > > index e4d36aa639..55af90957a 100755 > > --- a/configure > > +++ b/configure > > @@ -3579,6 +3579,8 @@ udp_protocol_select=3D"network" > > udplite_protocol_select=3D"network" > > unix_protocol_deps=3D"sys_un_h" > > unix_protocol_select=3D"network" > > +ipfs_protocol_select=3D"https_protocol" > > +ipns_protocol_select=3D"https_protocol" > > > > # external library protocols > > libamqp_protocol_deps=3D"librabbitmq" > > diff --git a/doc/protocols.texi b/doc/protocols.texi > > index d207df0b52..7c9c0a4808 100644 > > --- a/doc/protocols.texi > > +++ b/doc/protocols.texi > > @@ -2025,5 +2025,35 @@ decoding errors. > > > > @end table > > > > +@section ipfs > > + > > +InterPlanetary File System (IPFS) protocol support. One can access fil= es > > stored > > +on the IPFS network through so called gateways. Those are http(s) > > endpoints. > > +This protocol wraps the IPFS native protocols (ipfs:// and ipns://) to= be > > send > > +to such a gateway. Users can (and should) host their own node which me= ans > > this > > +protocol will use your local machine gateway to access files on the IP= FS > > network. > > + > > +If a user doesn't have a node of their own then the public gateway > > dweb.link is > > +used by default. > > + > > +You can use this protocol in 2 ways. Using IPFS: > > +@example > > +ffplay ipfs://QmbGtJg23skhvFmu9mJiePVByhfzu5rwo74MEkVDYAmF5T > > +@end example > > + > > +Or the IPNS protocol (IPNS is mutable IPFS): > > +@example > > +ffplay ipns://QmbGtJg23skhvFmu9mJiePVByhfzu5rwo74MEkVDYAmF5T > > +@end example > > + > > +You can also change the gateway to be used: > > + > > +@table @option > > + > > +@item gateway > > +Defines the gateway to use. When nothing is provided the protocol will > > first try > > +your local gateway. If that fails dweb.link will be used. > > + > > +@end table > > > > @c man end PROTOCOLS > > diff --git a/libavformat/Makefile b/libavformat/Makefile > > index d7182d6bd8..e3233fd7ac 100644 > > --- a/libavformat/Makefile > > +++ b/libavformat/Makefile > > @@ -660,6 +660,8 @@ OBJS-$(CONFIG_SRTP_PROTOCOL) +=3D > > srtpproto.o srtp.o > > OBJS-$(CONFIG_SUBFILE_PROTOCOL) +=3D subfile.o > > OBJS-$(CONFIG_TEE_PROTOCOL) +=3D teeproto.o tee_common.o > > OBJS-$(CONFIG_TCP_PROTOCOL) +=3D tcp.o > > +OBJS-$(CONFIG_IPFS_PROTOCOL) +=3D ipfsgateway.o > > +OBJS-$(CONFIG_IPNS_PROTOCOL) +=3D ipfsgateway.o > > TLS-OBJS-$(CONFIG_GNUTLS) +=3D tls_gnutls.o > > TLS-OBJS-$(CONFIG_LIBTLS) +=3D tls_libtls.o > > TLS-OBJS-$(CONFIG_MBEDTLS) +=3D tls_mbedtls.o > > diff --git a/libavformat/ipfsgateway.c b/libavformat/ipfsgateway.c > > new file mode 100644 > > index 0000000000..725cc5e474 > > --- /dev/null > > +++ b/libavformat/ipfsgateway.c > > @@ -0,0 +1,328 @@ > > +/* > > + * IPFS and IPNS protocol support through IPFS Gateway. > > + * Copyright (c) 2022 Mark Gaiser > > + * > > + * 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 > > + */ > > + > > +#include "libavutil/avstring.h" > > +#include "libavutil/opt.h" > > +#include "url.h" > > +#include > > + > > +typedef struct IPFSGatewayContext { > > + AVClass *class; > > + URLContext *inner; > > + // Is filled by the -gateway argument and not changed after. > > + char *gateway; > > + // If the above gateway is non null, it will be copied into this > > buffer. > > + // Else this buffer will contain the auto detected gateway. > > + // In either case, the gateway to use will be in this buffer. > > + char gateway_buffer[PATH_MAX]; > > +} IPFSGatewayContext; > > + > > +// A best-effort way to find the IPFS gateway. > > +// Only the most appropiate gateway is set. It's not actually requested > > +// (http call) to prevent a potential slowdown in startup. A potential > > timeout > > +// is handled by the HTTP protocol. > > +static int populate_ipfs_gateway(URLContext *h) > > +{ > > + IPFSGatewayContext *c =3D h->priv_data; > > + char ipfs_full_data_folder[PATH_MAX]; > > + char ipfs_gateway_file[PATH_MAX]; > > + struct stat st; > > + int stat_ret =3D 0; > > + int ret =3D AVERROR(EINVAL); > > + FILE *gateway_file =3D NULL; > > + > > + // Test $IPFS_GATEWAY. > > + if (getenv("IPFS_GATEWAY") !=3D NULL) { > > + if (snprintf(c->gateway_buffer, sizeof(c->gateway_buffer), "%s= ", > > + getenv("IPFS_GATEWAY")) >=3D > > sizeof(c->gateway_buffer)) { > > + av_log(h, AV_LOG_WARNING, "The IPFS_GATEWAY environment > > variable " > > + "exceeds the maximum length. " > > + "We allow a max of %zu > > characters\n", > > + sizeof(c->gateway_buffer)); > > + ret =3D AVERROR(EINVAL); > > + goto err; > > + } > > + > > + ret =3D 1; > > + goto err; > > + } else > > + av_log(h, AV_LOG_DEBUG, "$IPFS_GATEWAY is empty.\n"); > > + > > + // We need to know the IPFS folder to - eventually - read the > > contents of > > + // the "gateway" file which would tell us the gateway to use. > > + if (getenv("IPFS_PATH") =3D=3D NULL) { > > + av_log(h, AV_LOG_DEBUG, "$IPFS_PATH is empty.\n"); > > + > > + // Try via the home folder. > > + if (getenv("HOME") =3D=3D NULL) { > > + av_log(h, AV_LOG_WARNING, "$HOME appears to be empty.\n"); > > + ret =3D AVERROR(EINVAL); > > + goto err; > > + } > > + > > + // Verify the composed path fits. > > + if (snprintf(ipfs_full_data_folder, sizeof(ipfs_full_data_fold= er), > > + "%s/.ipfs/", getenv("HOME")) >=3D > > sizeof(ipfs_full_data_folder)) { > > + av_log(h, AV_LOG_WARNING, "The IPFS data path exceeds the " > > + "max path length (%zu)\n", > > + sizeof(ipfs_full_data_folder)); > > + ret =3D AVERROR(EINVAL); > > + goto err; > > + } > > + > > + // Stat the folder. > > + // It should exist in a default IPFS setup when run as local u= ser. > > +#ifndef _WIN32 > > + stat_ret =3D stat(ipfs_full_data_folder, &st); > > +#else > > + stat_ret =3D win32_stat(ipfs_full_data_folder, &st); > > +#endif > > + if (stat_ret < 0) { > > + av_log(h, AV_LOG_INFO, "Unable to find IPFS folder. We > > tried:\n"); > > + av_log(h, AV_LOG_INFO, "- $IPFS_PATH, which was empty.\n"); > > + av_log(h, AV_LOG_INFO, "- $HOME/.ipfs (full uri: %s) which > > doesn't exist.\n", ipfs_full_data_folder); > > + ret =3D AVERROR(ENOENT); > > + goto err; > > + } > > + } else { > > + if (snprintf(ipfs_full_data_folder, > > sizeof(ipfs_full_data_folder), "%s", > > + getenv("IPFS_PATH")) >=3D sizeof(ipfs_full_data_folde= r)) { > > + av_log(h, AV_LOG_WARNING, "The IPFS_PATH environment varia= ble > > " > > + "exceeds the maximum length. " > > + "We allow a max of %zu > > characters\n", > > + sizeof(c->gateway_buffer)); > > + ret =3D AVERROR(EINVAL); > > + goto err; > > + } > > + > > + } > > + > > + // Copy the fully composed gateway path into ipfs_gateway_file. > > + if (snprintf(ipfs_gateway_file, sizeof(ipfs_gateway_file), > > "%sgateway", > > + ipfs_full_data_folder) >=3D sizeof(ipfs_gateway_file)= ) { > > + av_log(h, AV_LOG_WARNING, "The IPFS gateway file path exceeds " > > + "the max path length (%zu)\n", > > + sizeof(ipfs_gateway_file)); > > + ret =3D AVERROR(ENOENT); > > + goto err; > > + } > > + > > + // Get the contents of the gateway file. > > + gateway_file =3D av_fopen_utf8(ipfs_gateway_file, "r"); > > + if (!gateway_file) { > > + av_log(h, AV_LOG_WARNING, "The IPFS gateway file (full uri: %s) > > doesn't exist. " > > + "Is the gateway enabled?\n", > > + ipfs_gateway_file); > > + ret =3D AVERROR(ENOENT); > > + goto err; > > + } > > + > > + // Read a single line (fgets stops at new line mark). > > + if (!fgets(c->gateway_buffer, sizeof(c->gateway_buffer) - 1, > > gateway_file)) { > > + av_log(h, AV_LOG_WARNING, "Unable to read from file (full uri: > > %s).\n", > > + ipfs_gateway_file); > > + ret =3D AVERROR(ENOENT); > > + goto err; > > + } > > + > > + // Replace first occurence of end of line with \0 > > + c->gateway_buffer[strcspn(c->gateway_buffer, "\r\n")] =3D 0; > > + > > + // If strlen finds anything longer then 0 characters then we have a > > + // potential gateway url. > > + if (*c->gateway_buffer =3D=3D '\0') { > > + av_log(h, AV_LOG_WARNING, "The IPFS gateway file (full uri: %s) > > appears to be empty. " > > + "Is the gateway started?\n", > > + ipfs_gateway_file); > > + ret =3D AVERROR(EILSEQ); > > + goto err; > > + } else { > > + // We're done, the c->gateway_buffer has something that looks > > valid. > > + ret =3D 1; > > + goto err; > > + } > > + > > +err: > > + if (gateway_file) > > + fclose(gateway_file); > > + > > + return ret; > > +} > > + > > +static int translate_ipfs_to_http(URLContext *h, const char *uri, > > + int flags, AVDictionary **options) > > +{ > > + const char *ipfs_cid; > > + char *fulluri =3D NULL; > > + int ret; > > + IPFSGatewayContext *c =3D h->priv_data; > > + > > + // Test for ipfs://, ipfs:, ipns:// and ipns:. This prefix is > > stripped from > > + // the string leaving just the CID in ipfs_cid. > > + int is_ipfs =3D av_stristart(uri, "ipfs://", &ipfs_cid); > > + int is_ipns =3D av_stristart(uri, "ipns://", &ipfs_cid); > > + > > + // We must have either ipns or ipfs. > > + if (!is_ipfs && !is_ipns) { > > + ret =3D AVERROR(EINVAL); > > + av_log(h, AV_LOG_WARNING, "Unsupported url %s\n", uri); > > + goto err; > > + } > > + > > + // If the CID has a length greater then 0 then we assume we have a > > proper working one. > > + // It could still be wrong but in that case the gateway should save > > us and > > + // ruturn a 403 error. The http protocol handles this. > > + if (strlen(ipfs_cid) < 1) { > > + av_log(h, AV_LOG_WARNING, "A CID must be provided.\n"); > > + ret =3D AVERROR(EILSEQ); > > + goto err; > > + } > > + > > + // Populate c->gateway_buffer with whatever is in c->gateway > > + if (c->gateway !=3D NULL) { > > + if (snprintf(c->gateway_buffer, sizeof(c->gateway_buffer), "%s= ", > > + c->gateway) >=3D sizeof(c->gateway_buffer)) { > > + av_log(h, AV_LOG_WARNING, "The -gateway parameter is too > > long. " > > + "We allow a max of %zu > > characters\n", > > + sizeof(c->gateway_buffer)); > > + ret =3D AVERROR(EINVAL); > > + goto err; > > + } > > + } else { > > + // Populate the IPFS gateway if we have any. > > + // If not, inform the user how to properly set one. > > + ret =3D populate_ipfs_gateway(h); > > + > > + if (ret < 1) { > > + // We fallback on dweb.link (managed by Protocol Labs). > > + snprintf(c->gateway_buffer, sizeof(c->gateway_buffer), " > > https://dweb.link"); > > + > > + av_log(h, AV_LOG_WARNING, "IPFS does not appear to be > > running. " > > + "You=E2=80=99re now using the pu= blic > > gateway at dweb.link.\n"); > > + av_log(h, AV_LOG_INFO, "Installing IPFS locally is > > recommended to " > > + "improve performance and reliabilit= y, " > > + "and not share all your activity wi= th > > a single IPFS gateway.\n" > > + "There are multiple options to define this gateway.= \n" > > + "1. Call ffmpeg with a gateway param, " > > + "without a trailing slash: -gateway > > .\n" > > + "2. Define an $IPFS_GATEWAY environment variable wi= th > > the " > > + "full HTTP URL to the gateway " > > + "without trailing forward slash.\n" > > + "3. Define an $IPFS_PATH environment variable " > > + "and point it to the IPFS data path= " > > + "- this is typically ~/.ipfs\n"); > > + } > > + } > > + > > + // Test if the gateway starts with either http:// or https:// > > + if (av_stristart(c->gateway_buffer, "http://", NULL) =3D=3D 0 > > + && av_stristart(c->gateway_buffer, "https://", NULL) =3D=3D 0)= { > > + av_log(h, AV_LOG_WARNING, "The gateway URL didn't start with > > http:// or " > > + "https:// and is therefore > > invalid.\n"); > > + ret =3D AVERROR(EILSEQ); > > + goto err; > > + } > > + > > + // Concatenate the url. > > + // This ends up with something like: http://localhost:8080/ipfs/Qm= =2E.. > > .. > > + // The format of "%s%s%s%s" is the following: > > + // 1st %s =3D The gateway. > > + // 2nd %s =3D If the gateway didn't end in a slash, add a "/". > > Otherwise it's an empty string > > + // 3rd %s =3D Either ipns/ or ipfs/. > > + // 4th %s =3D The IPFS CID (Qm..., bafy..., ...). > > + fulluri =3D av_asprintf("%s%s%s%s", > > + c->gateway_buffer, > > + (c->gateway_buffer[strlen(c->gateway_buffer)= - > > 1] =3D=3D '/') ? "" : "/", > > + (is_ipns) ? "ipns/" : "ipfs/", > > + ipfs_cid); > > + > > + if (!fulluri) { > > + av_log(h, AV_LOG_ERROR, "Failed to compose the URL\n"); > > + ret =3D AVERROR(ENOMEM); > > + goto err; > > + } > > + > > + // Pass the URL back to FFMpeg's protocol handler. > > + ret =3D ffurl_open_whitelist(&c->inner, fulluri, flags, > > + &h->interrupt_callback, options, > > + h->protocol_whitelist, > > + h->protocol_blacklist, h); > > + if (ret < 0) { > > + av_log(h, AV_LOG_WARNING, "Unable to open resource: %s\n", > > fulluri); > > + goto err; > > + } > > + > > +err: > > + av_free(fulluri); > > + return ret; > > +} > > + > > +static int ipfs_read(URLContext *h, unsigned char *buf, int size) > > +{ > > + IPFSGatewayContext *c =3D h->priv_data; > > + return ffurl_read(c->inner, buf, size); > > +} > > + > > +static int64_t ipfs_seek(URLContext *h, int64_t pos, int whence) > > +{ > > + IPFSGatewayContext *c =3D h->priv_data; > > + return ffurl_seek(c->inner, pos, whence); > > +} > > + > > +static int ipfs_close(URLContext *h) > > +{ > > + IPFSGatewayContext *c =3D h->priv_data; > > + return ffurl_closep(&c->inner); > > +} > > + > > +#define OFFSET(x) offsetof(IPFSGatewayContext, x) > > + > > +static const AVOption options[] =3D { > > + {"gateway", "The gateway to ask for IPFS data.", OFFSET(gateway), > > AV_OPT_TYPE_STRING, {.str =3D NULL}, 0, 0, AV_OPT_FLAG_DECODING_PARAM}, > > + {NULL}, > > +}; > > + > > +static const AVClass ipfs_context_class =3D { > > + .class_name =3D "IPFS", > > + .item_name =3D av_default_item_name, > > + .option =3D options, > > + .version =3D LIBAVUTIL_VERSION_INT, > > +}; > > + > > +const URLProtocol ff_ipfs_protocol =3D { > > + .name =3D "ipfs", > > + .url_open2 =3D translate_ipfs_to_http, > > + .url_read =3D ipfs_read, > > + .url_seek =3D ipfs_seek, > > + .url_close =3D ipfs_close, > > + .priv_data_size =3D sizeof(IPFSGatewayContext), > > + .priv_data_class =3D &ipfs_context_class, > > +}; > > + > > +const URLProtocol ff_ipns_protocol =3D { > > + .name =3D "ipns", > > + .url_open2 =3D translate_ipfs_to_http, > > + .url_read =3D ipfs_read, > > + .url_seek =3D ipfs_seek, > > + .url_close =3D ipfs_close, > > + .priv_data_size =3D sizeof(IPFSGatewayContext), > > + .priv_data_class =3D &ipfs_context_class, > > +}; > > diff --git a/libavformat/protocols.c b/libavformat/protocols.c > > index d07563cd0c..6ee62a598a 100644 > > --- a/libavformat/protocols.c > > +++ b/libavformat/protocols.c > > @@ -71,6 +71,8 @@ extern const URLProtocol ff_libsrt_protocol; > > extern const URLProtocol ff_libssh_protocol; > > extern const URLProtocol ff_libsmbclient_protocol; > > extern const URLProtocol ff_libzmq_protocol; > > +extern const URLProtocol ff_ipfs_protocol; > > +extern const URLProtocol ff_ipns_protocol; > > > > #include "libavformat/protocol_list.c" > > > > -- > > 2.35.1 > > > > > Ping, even though the message is just here for mere minutes. >=20 > As of the very day i'm now sending updated patches for this for exactly 2 > months. I started on Feb. 1st. > With the last round of changes (Thanx Andreas!) I feel really confident > that this is now at the very least good quality code ready for prime time! > IPFS support is now also working by default, even when you don't have IPFS > at all (in here since a few patches ago). > Yeah, I feel really good about it now! >=20 > I'd very much appreciate it if this could finally be merged. I promise I'm > staying around to fix bugs if there are still bugs to be fixed and will > respond swiftly :) >=20 > But... I'd really really really like to be done with it for now. > I don't know when ffmpeg 5.1 is going to be released but having IPFS > support in there would be absolutely awesome! And would help me greatly in > continuing the development to support IPFS in mpv, KODI and VLC. Not building on mingw64 CC libavformat/ipfsgateway.o src/libavformat/ipfsgateway.c: In function =E2=80=98populate_ipfs_gateway= =E2=80=99: src/libavformat/ipfsgateway.c:96:20: error: implicit declaration of functio= n =E2=80=98win32_stat=E2=80=99; did you mean =E2=80=98wstat=E2=80=99? [-Wer= ror=3Dimplicit-function-declaration] stat_ret =3D win32_stat(ipfs_full_data_folder, &st); ^~~~~~~~~~ wstat cc1: some warnings being treated as errors src/ffbuild/common.mak:78: recipe for target 'libavformat/ipfsgateway.o' fa= iled make: *** [libavformat/ipfsgateway.o] Error 1 maybe you removed some #include that was actually needed ? (if this code di= dnt chaneg because it did build previosuly) thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The bravest are surely those who have the clearest vision of what is before them, glory and danger alike, and yet notwithstanding go out to meet it. -- Thucydides --3zpOsOmwAUfUYV4a Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEIAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCYkcclwAKCRBhHseHBAsP q8n7AJ9OnhgEUj5+7dTsKTVV62XBY7PaLQCZAViYluI3SrkMKLlwrQIzgcpPNeE= =GeyI -----END PGP SIGNATURE----- --3zpOsOmwAUfUYV4a-- --===============1106542190531723769== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe". --===============1106542190531723769==--