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![Jun Li](/assets/img/avatar_default.png)
Fix ticket #7297 The current setting for send-expect-100 option is either enabled if applicable or forced enabled, no option to force disable the header. This change is to expand the option setting to provide more flexibility, which is useful for rstp case. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
221 lines
7.7 KiB
C
221 lines
7.7 KiB
C
/*
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* Icecast protocol for FFmpeg
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* Copyright (c) 2014 Marvin Scholz
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/avstring.h"
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#include "libavutil/bprint.h"
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#include "libavutil/opt.h"
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#include "avformat.h"
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#include "network.h"
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typedef struct IcecastContext {
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const AVClass *class;
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URLContext *hd;
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int send_started;
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char *user;
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// Options
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char *content_type;
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char *description;
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char *genre;
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int legacy_icecast;
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char *name;
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char *pass;
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int public;
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char *url;
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char *user_agent;
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} IcecastContext;
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#define DEFAULT_ICE_USER "source"
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#define NOT_EMPTY(s) (s && s[0])
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#define OFFSET(x) offsetof(IcecastContext, x)
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#define E AV_OPT_FLAG_ENCODING_PARAM
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static const AVOption options[] = {
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{ "ice_genre", "set stream genre", OFFSET(genre), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
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{ "ice_name", "set stream description", OFFSET(name), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
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{ "ice_description", "set stream description", OFFSET(description), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
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{ "ice_url", "set stream website", OFFSET(url), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
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{ "ice_public", "set if stream is public", OFFSET(public), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
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{ "user_agent", "override User-Agent header", OFFSET(user_agent), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
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{ "password", "set password", OFFSET(pass), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
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{ "content_type", "set content-type, MUST be set if not audio/mpeg", OFFSET(content_type), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
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{ "legacy_icecast", "use legacy SOURCE method, for Icecast < v2.4", OFFSET(legacy_icecast), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
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{ NULL }
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};
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static void cat_header(AVBPrint *bp, const char key[], const char value[])
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{
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if (NOT_EMPTY(value))
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av_bprintf(bp, "%s: %s\r\n", key, value);
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}
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static int icecast_close(URLContext *h)
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{
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IcecastContext *s = h->priv_data;
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if (s->hd)
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ffurl_close(s->hd);
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return 0;
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}
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static int icecast_open(URLContext *h, const char *uri, int flags)
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{
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IcecastContext *s = h->priv_data;
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// Dict to set options that we pass to the HTTP protocol
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AVDictionary *opt_dict = NULL;
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// URI part variables
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char h_url[1024], host[1024], auth[1024], path[1024];
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char *headers = NULL, *user = NULL;
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int port, ret;
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AVBPrint bp;
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if (flags & AVIO_FLAG_READ)
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return AVERROR(ENOSYS);
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av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
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// Build header strings
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cat_header(&bp, "Ice-Name", s->name);
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cat_header(&bp, "Ice-Description", s->description);
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cat_header(&bp, "Ice-URL", s->url);
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cat_header(&bp, "Ice-Genre", s->genre);
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cat_header(&bp, "Ice-Public", s->public ? "1" : "0");
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if (!av_bprint_is_complete(&bp)) {
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ret = AVERROR(ENOMEM);
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goto cleanup;
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}
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av_bprint_finalize(&bp, &headers);
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// Set options
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av_dict_set(&opt_dict, "method", s->legacy_icecast ? "SOURCE" : "PUT", 0);
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av_dict_set(&opt_dict, "auth_type", "basic", 0);
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av_dict_set(&opt_dict, "headers", headers, 0);
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av_dict_set(&opt_dict, "chunked_post", "0", 0);
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av_dict_set(&opt_dict, "send_expect_100", s->legacy_icecast ? "-1" : "1", 0);
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if (NOT_EMPTY(s->content_type))
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av_dict_set(&opt_dict, "content_type", s->content_type, 0);
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else
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av_dict_set(&opt_dict, "content_type", "audio/mpeg", 0);
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if (NOT_EMPTY(s->user_agent))
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av_dict_set(&opt_dict, "user_agent", s->user_agent, 0);
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// Parse URI
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av_url_split(NULL, 0, auth, sizeof(auth), host, sizeof(host),
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&port, path, sizeof(path), uri);
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// Check for auth data in URI
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if (auth[0]) {
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char *sep = strchr(auth, ':');
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if (sep) {
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*sep = 0;
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sep++;
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if (s->pass) {
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av_free(s->pass);
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av_log(h, AV_LOG_WARNING, "Overwriting -password <pass> with URI password!\n");
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}
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if (!(s->pass = av_strdup(sep))) {
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ret = AVERROR(ENOMEM);
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goto cleanup;
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}
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}
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if (!(user = av_strdup(auth))) {
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ret = AVERROR(ENOMEM);
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goto cleanup;
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}
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}
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// Build new authstring
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snprintf(auth, sizeof(auth),
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"%s:%s",
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user ? user : DEFAULT_ICE_USER,
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s->pass ? s->pass : "");
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// Check for mountpoint (path)
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if (!path[0] || strcmp(path, "/") == 0) {
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av_log(h, AV_LOG_ERROR, "No mountpoint (path) specified!\n");
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ret = AVERROR(EIO);
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goto cleanup;
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}
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// Build new URI for passing to http protocol
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ff_url_join(h_url, sizeof(h_url), "http", auth, host, port, "%s", path);
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// Finally open http proto handler
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ret = ffurl_open_whitelist(&s->hd, h_url, AVIO_FLAG_READ_WRITE, NULL,
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&opt_dict, h->protocol_whitelist, h->protocol_blacklist, h);
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cleanup:
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av_freep(&user);
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av_freep(&headers);
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av_dict_free(&opt_dict);
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return ret;
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}
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static int icecast_write(URLContext *h, const uint8_t *buf, int size)
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{
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IcecastContext *s = h->priv_data;
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if (!s->send_started) {
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s->send_started = 1;
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if (!s->content_type && size >= 8) {
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static const uint8_t oggs[4] = { 0x4F, 0x67, 0x67, 0x53 };
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static const uint8_t webm[4] = { 0x1A, 0x45, 0xDF, 0xA3 };
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static const uint8_t opus[8] = { 0x4F, 0x70, 0x75, 0x73, 0x48, 0x65, 0x61, 0x64 };
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if (memcmp(buf, oggs, sizeof(oggs)) == 0) {
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av_log(h, AV_LOG_WARNING, "Streaming Ogg but appropriate content type NOT set!\n");
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av_log(h, AV_LOG_WARNING, "Set it with -content_type application/ogg\n");
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} else if (memcmp(buf, opus, sizeof(opus)) == 0) {
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av_log(h, AV_LOG_WARNING, "Streaming Opus but appropriate content type NOT set!\n");
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av_log(h, AV_LOG_WARNING, "Set it with -content_type audio/ogg\n");
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} else if (memcmp(buf, webm, sizeof(webm)) == 0) {
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av_log(h, AV_LOG_WARNING, "Streaming WebM but appropriate content type NOT set!\n");
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av_log(h, AV_LOG_WARNING, "Set it with -content_type video/webm\n");
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} else {
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av_log(h, AV_LOG_WARNING, "It seems you are streaming an unsupported format.\n");
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av_log(h, AV_LOG_WARNING, "It might work, but is not officially supported in Icecast!\n");
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}
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}
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}
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return ffurl_write(s->hd, buf, size);
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}
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static const AVClass icecast_context_class = {
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.class_name = "icecast",
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.item_name = av_default_item_name,
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.option = options,
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.version = LIBAVUTIL_VERSION_INT,
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};
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const URLProtocol ff_icecast_protocol = {
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.name = "icecast",
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.url_open = icecast_open,
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.url_write = icecast_write,
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.url_close = icecast_close,
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.priv_data_size = sizeof(IcecastContext),
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.priv_data_class = &icecast_context_class,
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.flags = URL_PROTOCOL_FLAG_NETWORK,
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};
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