From patchwork Thu Nov 9 00:19:33 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Colin NG X-Patchwork-Id: 5968 Delivered-To: ffmpegpatchwork@gmail.com Received: by 10.2.161.90 with SMTP id m26csp2647422jah; Thu, 9 Nov 2017 15:08:31 -0800 (PST) X-Google-Smtp-Source: ABhQp+Resq19NAD3EVXKa1EXe6rfh353qRUOHJS0l2UeeZCtE2OtEZMsdIL28btBMoryU8eCxQGn X-Received: by 10.223.136.92 with SMTP id e28mr1692379wre.36.1510268911132; Thu, 09 Nov 2017 15:08:31 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1510268911; cv=none; d=google.com; s=arc-20160816; b=u98CbQUXqfqbtnLK1wTk+724pk4PxMqDVf/H1UpdGWPqC60p49VTDk9IxKf31dWn6h H74i5wyQ6hcDjxKR0V7ghxNBqPbZ53sRP9VM74xzltzTUr0to5Ie8eshamz4E4sIPItS bJgE/6RI2Y1qMJH79yttkf0iGHvk4JCCMNdXtaHt6L7rFWVqRUljQfxHF9InAdhcZzxz wD0FPl04OQX7QmupHUVoWLtkTox3mJ0QXP+vVrwsRertp/952sal54+9f80eIdmQvayS UE4YBsKfuhCmFhfjeynSBNQKZMWEH6G2DsJttrq09q7zS7oS3TGZOY0mirVLJewU7QSS sJXg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:reply-to:list-subscribe:list-help:list-post :list-archive:list-unsubscribe:list-id:precedence:subject :mime-version:spamdiagnosticmetadata:spamdiagnosticoutput :content-language:accept-language:message-id:date:thread-index :thread-topic:to:from:dkim-signature:delivered-to :arc-authentication-results; bh=TlabQiLfOWWDWP0RtunhYjezSQl0bxCb8RptXhQVtVM=; b=dDF1Uzw760MzhgWyPxAYdEGM1LKbK2D+DCXB2Bw9eFPy3EHtq6AJhrtrkIKqQIzBXF CyC6/wXIxl1ImGXOmx6M8uDn4D5GZvN/p01civ0lyJ6cpvLCiJSMu3VrayXbeR1Uozj0 llT5aUPYrTfYwaruFAIoIIWO0qBmzmsTG2TCPOxCznJmbbYj3Zv2oJckUKd07zEl+YFk rUjlQMNux0dQnBMCyrMatau1N8b56G3GOw7MlhFNe0r5FBeUnlbZM+6YdU1fMFUuerMm hsvQymQpUhvi98stauZVnCGSdCZZPN6CpBwCpx4qLW9xV9Dupm/l/oKK6sLDGae33xL4 6wWg== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@hotmail.com header.s=selector1 header.b=WIEWIC4K; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org; dmarc=fail (p=NONE sp=QUARANTINE dis=NONE) header.from=hotmail.com Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. 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BCL:0; PCL:0; RULEID:(22001)(201702061074)(5061506573)(5061507331)(1603103135)(2017031320274)(2017031324274)(2017031323274)(2017031322404)(1601125374)(1603101448)(1701031045); SRVR:BL2NAM02HT017; x-ms-traffictypediagnostic: BL2NAM02HT017: x-exchange-antispam-report-test: UriScan:; x-exchange-antispam-report-cfa-test: BCL:0; PCL:0; RULEID:(100000700101)(100105000095)(100000701101)(100105300095)(100000702101)(100105100095)(444000031); SRVR:BL2NAM02HT017; BCL:0; PCL:0; RULEID:(100000800101)(100110000095)(100000801101)(100110300095)(100000802101)(100110100095)(100000803101)(100110400095)(100000804101)(100110200095)(100000805101)(100110500095); SRVR:BL2NAM02HT017; x-forefront-prvs: 0486A0CB86 x-forefront-antispam-report: SFV:NSPM; SFS:(7070007)(98901004); DIR:OUT; SFP:1901; SCL:1; SRVR:BL2NAM02HT017; H:DM5PR22MB0681.namprd22.prod.outlook.com; FPR:; SPF:None; LANG:; spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: hotmail.com X-MS-Exchange-CrossTenant-Network-Message-Id: 46669982-fa2b-4d20-e092-08d527078d9e X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Nov 2017 00:19:33.6422 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Internet X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL2NAM02HT017 X-Mailman-Approved-At: Fri, 10 Nov 2017 01:08:15 +0200 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 Subject: [FFmpeg-devel] [Patch] Fix for ticket 6658 (Dash demuxer segfault) X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 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 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" - Add a function to handle the base URL Processing described in section 5.6.5 of IEC_23009-1. - Fix for downloading content with byte range selection diff --git a/libavformat/dashdec.c b/libavformat/dashdec.c index f63f1ff..19ef6f8 100644 --- a/libavformat/dashdec.c +++ b/libavformat/dashdec.c @@ -349,6 +349,16 @@ static void update_options(char **dest, const char *name, void *src) av_freep(dest); } +static int isLocal(char *url) { + + if (av_strstart(url, "http://", NULL) || av_strstart(url, "https://", NULL)) + { + return FALSE; + } + + return TRUE; +} + static int open_url(AVFormatContext *s, AVIOContext **pb, const char *url, AVDictionary *opts, AVDictionary *opts2, int *is_http) { @@ -392,7 +402,16 @@ static int open_url(AVFormatContext *s, AVIOContext **pb, const char *url, else if (strcmp(proto_name, "file") || !strncmp(url, "file,", 5)) return AVERROR_INVALIDDATA; - ret = s->io_open(s, pb, url, AVIO_FLAG_READ, &tmp); + { + av_freep(pb); + AVDictionary *opts = NULL; + set_httpheader_options(c, opts); + ret = avio_open2(pb, url, AVIO_FLAG_READ, c->interrupt_callback, &opts); + av_dict_free(&opts); + if (ret < 0) + return ret; + } + if (ret >= 0) { // update cookies on http response with setcookies. char *new_cookies = NULL; @@ -416,11 +435,156 @@ static int open_url(AVFormatContext *s, AVIOContext **pb, const char *url, return ret; } -static char *get_content_url(xmlNodePtr *baseurl_nodes, - int n_baseurl_nodes, - char *rep_id_val, - char *rep_bandwidth_val, - char *val) + +static int resolve_content_path(AVFormatContext *s, const char *url, xmlNodePtr *baseurl_nodes, int n_baseurl_nodes) { + + int i; + char *text; + char tmp_str[MAX_URL_SIZE]; + char tmp_str_2[MAX_URL_SIZE]; + + char *path = malloc(MAX_URL_SIZE); + int nameSize = 0; + int updated = 0; + + av_strlcpy(tmp_str, url, strlen(url)+1); + char *mpdName = strtok (tmp_str," /"); + + while ((mpdName =strtok (NULL, "/")) != NULL) + { + nameSize = strlen(mpdName); + } + + memset(path, 0, MAX_URL_SIZE* sizeof(char)); + av_strlcpy (path, url, strlen(url)-nameSize+1 ); + + int rootId = 0; + xmlNodePtr *node = NULL; + for (rootId = n_baseurl_nodes-1; rootId >0; rootId--) + { + if ((node = baseurl_nodes[rootId])== NULL) continue; + + if (isLocal(xmlNodeGetContent(node)) == FALSE) { + break; + } + } + + node = baseurl_nodes[rootId]; + char *baseurl = xmlNodeGetContent(node); + char *root_url = (!av_strcasecmp(baseurl, ""))? path: baseurl; + + if (node) { + xmlNodeSetContent(node, root_url); + } + + int size = strlen(root_url); + int isRootLocal = isLocal(root_url); + + char token ='/'; + if (strncmp(&root_url[size-1],&token, 1) != 0) + { + strcat(root_url, "/"); + size++; + } + + for (i = 0; i < n_baseurl_nodes; ++i) + { + if (i==rootId) continue; + text = xmlNodeGetContent(baseurl_nodes[i]); + if (text) + { + memset(tmp_str, 0, sizeof(tmp_str)); + + if (isLocal(text) == TRUE && isRootLocal == FALSE) + { + av_strlcpy(tmp_str, root_url, size+1); + } + if (text) + { + int start = (strncmp(text, &token, 1) == 0) ? 1: 0; + memset(tmp_str_2, 0, sizeof(tmp_str_2)); + av_strlcat(tmp_str, text+start, MAX_URL_SIZE); + xmlFree(text); + } + xmlNodeSetContent(baseurl_nodes[i], tmp_str); + updated = 1; + } + } + + free(path); + return updated; + +} + +static int av_strchr(const char *str, char tok) { + + char * pch; + int *pos; + int ctr = 0; + pch=strchr(str, tok); + pos = av_mallocz( strlen(str)*sizeof(int)); + while (pch!=NULL) { + pos[ctr] = pch-str+1; + pch=strchr(pch+1, tok); + ctr++; + } + + return pos[ctr-2]; +} +static void updatePath(AVFormatContext *s, char *baseURL, char *locale) { + + int len = strlen(baseURL); + int upDir=0; + + if (!locale || isLocal(locale) == FALSE) + return; + + char curDirChar[] = "./"; + char parentDirChar[] = "../"; + + while (av_strstart(locale, curDirChar, NULL) == TRUE) { + locale = av_strireplace(locale, curDirChar, ""); + } + + while (av_strstart(locale, parentDirChar, NULL) == TRUE) { + locale = av_strireplace(locale, parentDirChar, ""); + upDir++; + } + + char *pch = strchr (baseURL, '/'); + + if (upDir == 0 || pch == NULL) + goto finish; + + int depth = 0; + int *marker = (int *)av_mallocz(strlen(baseURL)*sizeof(int)); + + memset(marker, 0, strlen(baseURL)*sizeof(int)); + + do { + marker[depth] = pch-baseURL+1; + pch = strchr (pch+1, '/'); + depth++; + } while (pch != NULL); + + if (pch-baseURL+1 < strlen(baseURL)) + marker[depth] = pch-baseURL+1; + else + depth--; + + len = marker[depth-upDir]; + free(marker); + +finish: + strcpy(baseURL+len, locale); + +} + +static char *get_content_url(AVFormatContext *s, xmlNodePtr *baseurl_nodes, + int n_baseurl_nodes, + char *rep_id_val, + char *rep_bandwidth_val, + char *val) { int i; char *text; @@ -430,7 +594,7 @@ static char *get_content_url(xmlNodePtr *baseurl_nodes, memset(tmp_str, 0, sizeof(tmp_str)); - for (i = 0; i < n_baseurl_nodes; ++i) { + for (i = 0; i < n_baseurl_nodes; i++) { if (baseurl_nodes[i] && baseurl_nodes[i]->children && baseurl_nodes[i]->children->type == XML_TEXT_NODE) { @@ -445,23 +609,25 @@ static char *get_content_url(xmlNodePtr *baseurl_nodes, } } - if (val) - av_strlcat(tmp_str, (const char*)val, sizeof(tmp_str)); + updatePath(s, tmp_str, val); if (rep_id_val) { url = av_strireplace(tmp_str, "$RepresentationID$", (const char*)rep_id_val); if (!url) { return NULL; } - av_strlcpy(tmp_str, url, sizeof(tmp_str)); - av_free(url); + av_strlcpy(tmp_str, url, strlen(url)+1); } + if (rep_bandwidth_val && tmp_str[0] != '\0') { url = av_strireplace(tmp_str, "$Bandwidth$", (const char*)rep_bandwidth_val); if (!url) { return NULL; } } + + av_strlcpy(url, tmp_str, strlen(tmp_str)+1); + return url; } @@ -522,55 +688,82 @@ static enum AVMediaType get_content_type(xmlNodePtr node) return type; } +static struct fragment * getFragment(char *range) +{ + struct fragment * seg = av_mallocz(sizeof(struct fragment)); + + memset(seg, 0, sizeof(struct fragment)); + seg->size = -1; + if (range) { + char *str_end_offset; + char *str_offset = av_strtok(range, "-", &str_end_offset); + seg->url_offset = strtoll(str_offset, NULL, 10); + seg->size = strtoll(str_end_offset, NULL, 10) -seg->url_offset; + } + + return seg; +} + static int parse_manifest_segmenturlnode(AVFormatContext *s, struct representation *rep, xmlNodePtr fragmenturl_node, xmlNodePtr *baseurl_nodes, char *rep_id_val, char *rep_bandwidth_val) { - char *initialization_val = NULL; + char *source_val = NULL; char *media_val = NULL; + char *range_val = NULL; if (!av_strcasecmp(fragmenturl_node->name, (const char *)"Initialization")) { - initialization_val = xmlGetProp(fragmenturl_node, "sourceURL"); - if (initialization_val) { - rep->init_section = av_mallocz(sizeof(struct fragment)); + + source_val = xmlGetProp(fragmenturl_node, "sourceURL"); + range_val = xmlGetProp(fragmenturl_node, "range"); // byte range on + if (source_val || range_val) { + rep->init_section = getFragment(range_val); + if (!rep->init_section) { - xmlFree(initialization_val); + xmlFree(source_val); + xmlFree(range_val); return AVERROR(ENOMEM); } - rep->init_section->url = get_content_url(baseurl_nodes, 4, - rep_id_val, - rep_bandwidth_val, - initialization_val); + rep->init_section->url = get_content_url(s, baseurl_nodes, 4, + rep_id_val, + rep_bandwidth_val, + source_val); if (!rep->init_section->url) { av_free(rep->init_section); - xmlFree(initialization_val); + xmlFree(source_val); + xmlFree(range_val); return AVERROR(ENOMEM); - } - rep->init_section->size = -1; - xmlFree(initialization_val); + } + xmlFree(source_val); + xmlFree(range_val); } - } else if (!av_strcasecmp(fragmenturl_node->name, (const char *)"SegmentURL")) { + } + else if (!av_strcasecmp(fragmenturl_node->name, (const char *)"SegmentURL")) { media_val = xmlGetProp(fragmenturl_node, "media"); - if (media_val) { - struct fragment *seg = av_mallocz(sizeof(struct fragment)); + range_val = xmlGetProp(fragmenturl_node, "mediaRange"); + + if (media_val || range_val) { + struct fragment *seg = getFragment(range_val); if (!seg) { xmlFree(media_val); + xmlFree(range_val); return AVERROR(ENOMEM); } - seg->url = get_content_url(baseurl_nodes, 4, - rep_id_val, - rep_bandwidth_val, - media_val); + seg->url = get_content_url(s, baseurl_nodes, 4, + rep_id_val, + rep_bandwidth_val, + media_val); if (!seg->url) { av_free(seg); xmlFree(media_val); + xmlFree(range_val); return AVERROR(ENOMEM); } - seg->size = -1; dynarray_add(&rep->fragments, &rep->n_fragments, seg); xmlFree(media_val); + xmlFree(range_val); } } @@ -663,6 +856,7 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url, ret = AVERROR(ENOMEM); goto end; } + representation_segmenttemplate_node = find_child_node_by_name(representation_node, "SegmentTemplate"); representation_baseurl_node = find_child_node_by_name(representation_node, "BaseURL"); representation_segmentlist_node = find_child_node_by_name(representation_node, "SegmentList"); @@ -672,6 +866,8 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url, baseurl_nodes[2] = adaptionset_baseurl_node; baseurl_nodes[3] = representation_baseurl_node; + resolve_content_path(s, url, baseurl_nodes, 4); + if (representation_segmenttemplate_node || fragment_template_node) { fragment_timeline_node = NULL; fragment_templates_tab[0] = representation_segmenttemplate_node; @@ -691,7 +887,7 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url, ret = AVERROR(ENOMEM); goto end; } - rep->init_section->url = get_content_url(baseurl_nodes, 4, rep_id_val, rep_bandwidth_val, initialization_val); + rep->init_section->url = get_content_url(s, baseurl_nodes, 4, rep_id_val, rep_bandwidth_val, initialization_val); if (!rep->init_section->url) { av_free(rep->init_section); av_free(rep); @@ -703,7 +899,8 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url, } if (media_val) { - rep->url_template = get_content_url(baseurl_nodes, 4, rep_id_val, rep_bandwidth_val, media_val); + rep->url_template = get_content_url(s, baseurl_nodes, 4, rep_id_val, rep_bandwidth_val, media_val); + av_log(s, AV_LOG_DEBUG, "rep->url_template = %s\n", rep->url_template); xmlFree(media_val); } @@ -744,7 +941,9 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url, ret = AVERROR(ENOMEM); goto end; } - seg->url = get_content_url(baseurl_nodes, 4, rep_id_val, rep_bandwidth_val, NULL); + seg->url = get_content_url(s, baseurl_nodes, 4, rep_id_val, rep_bandwidth_val, NULL); + av_log(s, AV_LOG_DEBUG, "seg->url = %s\n", seg->url); + if (!seg->url) { av_free(seg); ret = AVERROR(ENOMEM); @@ -755,6 +954,8 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url, } else if (representation_segmentlist_node) { // TODO: https://www.brendanlong.com/the-structure-of-an-mpeg-dash-mpd.html // http://www-itec.uni-klu.ac.at/dash/ddash/mpdGenerator.php?fragmentlength=15&type=full + + av_log(s, AV_LOG_INFO, "representation_segmentlist_node \n"); xmlNodePtr fragmenturl_node = NULL; duration_val = xmlGetProp(representation_segmentlist_node, "duration"); timescale_val = xmlGetProp(representation_segmentlist_node, "timescale"); @@ -836,6 +1037,7 @@ static int parse_manifest_adaptationset(AVFormatContext *s, const char *url, node = xmlFirstElementChild(adaptionset_node); while (node) { + av_log(s, AV_LOG_INFO, "node name[%s] type[%d]\n", node->name, (int)node->type); if (!av_strcasecmp(node->name, (const char *)"SegmentTemplate")) { fragment_template_node = node; } else if (!av_strcasecmp(node->name, (const char *)"ContentComponent")) { @@ -850,7 +1052,7 @@ static int parse_manifest_adaptationset(AVFormatContext *s, const char *url, fragment_template_node, content_component_node, adaptionset_baseurl_node); - if (ret < 0) { + if (ret < 0) { return ret; } } @@ -884,7 +1086,6 @@ static int parse_manifest(AVFormatContext *s, const char *url, AVIOContext *in) if (!in) { close_in = 1; - set_httpheader_options(c, opts); ret = avio_open2(&in, url, AVIO_FLAG_READ, c->interrupt_callback, &opts); av_dict_free(&opts); @@ -966,7 +1167,10 @@ static int parse_manifest(AVFormatContext *s, const char *url, AVIOContext *in) xmlFree(val); } - mpd_baseurl_node = find_child_node_by_name(node, "BaseURL"); + if ((mpd_baseurl_node = find_child_node_by_name(node, "BaseURL")) == NULL) + { + mpd_baseurl_node = xmlNewNode(node, "BaseURL"); + } // at now we can handle only one period, with the longest duration node = xmlFirstElementChild(node); @@ -1285,7 +1489,7 @@ static int read_from_url(struct representation *pls, struct fragment *seg, if (mode == READ_COMPLETE) { ret = avio_read(pls->input, buf, buf_size); if (ret < buf_size) { - av_log(pls->parent, AV_LOG_WARNING, "Could not read complete fragment.\n"); + av_log(pls->parent, AV_LOG_WARNING, "Could not read complete fragment. Data Request = %d Data read = %d \n", buf_size, ret); } } else { ret = avio_read(pls->input, buf, buf_size); @@ -1306,6 +1510,7 @@ static int open_input(DASHContext *c, struct representation *pls, struct fragmen if (seg->size >= 0) { /* try to restrict the HTTP request to the part we want * (if this is in fact a HTTP request) */ + av_log(pls->parent, AV_LOG_DEBUG, "open_input offset=%d end_offset=%d \n", seg->url_offset, seg->url_offset + seg->size); av_dict_set_int(&opts, "offset", seg->url_offset, 0); av_dict_set_int(&opts, "end_offset", seg->url_offset + seg->size, 0); }