]> git.sesse.net Git - ffmpeg/blobdiff - libavformat/dashdec.c
avformat/rtpproto: use factorized ip functions
[ffmpeg] / libavformat / dashdec.c
index 6304ad933bb947dfae2008788335e62fb0179ed4..497e7e469cbe80a803ffa5dac952b0b384d1848b 100644 (file)
@@ -122,6 +122,19 @@ struct representation {
 typedef struct DASHContext {
     const AVClass *class;
     char *base_url;
+    char *adaptionset_contenttype_val;
+    char *adaptionset_par_val;
+    char *adaptionset_lang_val;
+    char *adaptionset_minbw_val;
+    char *adaptionset_maxbw_val;
+    char *adaptionset_minwidth_val;
+    char *adaptionset_maxwidth_val;
+    char *adaptionset_minheight_val;
+    char *adaptionset_maxheight_val;
+    char *adaptionset_minframerate_val;
+    char *adaptionset_maxframerate_val;
+    char *adaptionset_segmentalignment_val;
+    char *adaptionset_bitstreamswitching_val;
 
     int n_videos;
     struct representation **videos;
@@ -132,6 +145,7 @@ typedef struct DASHContext {
     uint64_t media_presentation_duration;
     uint64_t suggested_presentation_delay;
     uint64_t availability_start_time;
+    uint64_t availability_end_time;
     uint64_t publish_time;
     uint64_t minimum_update_period;
     uint64_t time_shift_buffer_depth;
@@ -143,9 +157,6 @@ typedef struct DASHContext {
 
     int is_live;
     AVIOInterruptCB *interrupt_callback;
-    char *user_agent;                    ///< holds HTTP user agent set as an AVOption to the HTTP protocol context
-    char *cookies;                       ///< holds HTTP cookie values set in either the initial response or as an AVOption to the HTTP protocol context
-    char *headers;                       ///< holds HTTP headers set as an AVOption to the HTTP protocol context
     char *allowed_extensions;
     AVDictionary *avio_opts;
     int max_url_size;
@@ -262,6 +273,12 @@ static int64_t get_segment_start_time_based_on_timeline(struct representation *p
                 goto finish;
 
             start_time += pls->timelines[i]->duration;
+
+            if (pls->timelines[i]->repeat == -1) {
+                start_time = pls->timelines[i]->duration * cur_seq_no;
+                goto finish;
+            }
+
             for (j = 0; j < pls->timelines[i]->repeat; j++) {
                 num++;
                 if (num == cur_seq_no)
@@ -377,24 +394,6 @@ static void free_audio_list(DASHContext *c)
     c->n_audios = 0;
 }
 
-static void set_httpheader_options(DASHContext *c, AVDictionary **opts)
-{
-    // broker prior HTTP options that should be consistent across requests
-    av_dict_set(opts, "user-agent", c->user_agent, 0);
-    av_dict_set(opts, "cookies", c->cookies, 0);
-    av_dict_set(opts, "headers", c->headers, 0);
-    if (c->is_live) {
-        av_dict_set(opts, "seekable", "0", 0);
-    }
-}
-static void update_options(char **dest, const char *name, void *src)
-{
-    av_freep(dest);
-    av_opt_get(src, name, AV_OPT_SEARCH_CHILDREN, (uint8_t**)dest);
-    if (*dest)
-        av_freep(dest);
-}
-
 static int open_url(AVFormatContext *s, AVIOContext **pb, const char *url,
                     AVDictionary *opts, AVDictionary *opts2, int *is_http)
 {
@@ -448,11 +447,9 @@ static int open_url(AVFormatContext *s, AVIOContext **pb, const char *url,
             av_opt_get(*pb, "cookies", AV_OPT_SEARCH_CHILDREN, (uint8_t**)&new_cookies);
 
         if (new_cookies) {
-            av_free(c->cookies);
-            c->cookies = new_cookies;
+            av_dict_set(&opts, "cookies", new_cookies, AV_DICT_DONT_STRDUP_VAL);
         }
 
-        av_dict_set(&opts, "cookies", c->cookies, 0);
     }
 
     av_dict_free(&tmp);
@@ -706,6 +703,7 @@ static int resolve_content_path(AVFormatContext *s, const char *url, int *max_ur
     char *baseurl = NULL;
     char *root_url = NULL;
     char *text = NULL;
+    char *tmp = NULL;
 
     int isRootHttp = 0;
     char token ='/';
@@ -735,9 +733,11 @@ static int resolve_content_path(AVFormatContext *s, const char *url, int *max_ur
         goto end;
     }
     av_strlcpy(text, url, strlen(url)+1);
-    while (mpdName = av_strtok(text, "/", &text))  {
+    tmp = text;
+    while (mpdName = av_strtok(tmp, "/", &tmp))  {
         size = strlen(mpdName);
     }
+    av_free(text);
 
     path = av_mallocz(tmp_max_url_size);
     tmp_str = av_mallocz(tmp_max_url_size);
@@ -751,9 +751,12 @@ static int resolve_content_path(AVFormatContext *s, const char *url, int *max_ur
         if (!(node = baseurl_nodes[rootId])) {
             continue;
         }
-        if (ishttp(xmlNodeGetContent(node))) {
+        text = xmlNodeGetContent(node);
+        if (ishttp(text)) {
+            xmlFree(text);
             break;
         }
+        xmlFree(text);
     }
 
     node = baseurl_nodes[rootId];
@@ -796,6 +799,7 @@ end:
     }
     av_free(path);
     av_free(tmp_str);
+    xmlFree(baseurl);
     return updated;
 
 }
@@ -867,7 +871,9 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url,
         baseurl_nodes[3] = representation_baseurl_node;
 
         ret = resolve_content_path(s, url, &c->max_url_size, baseurl_nodes, 4);
-        c->max_url_size = aligned(c->max_url_size  + strlen(rep_id_val) + strlen(rep_bandwidth_val));
+        c->max_url_size = aligned(c->max_url_size
+                                  + (rep_id_val ? strlen(rep_id_val) : 0)
+                                  + (rep_bandwidth_val ? strlen(rep_bandwidth_val) : 0));
         if (ret == AVERROR(ENOMEM) || ret == 0) {
             goto end;
         }
@@ -913,18 +919,22 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url,
 
             if (presentation_timeoffset_val) {
                 rep->presentation_timeoffset = (int64_t) strtoll(presentation_timeoffset_val, NULL, 10);
+                av_log(s, AV_LOG_TRACE, "rep->presentation_timeoffset = [%"PRId64"]\n", rep->presentation_timeoffset);
                 xmlFree(presentation_timeoffset_val);
             }
             if (duration_val) {
                 rep->fragment_duration = (int64_t) strtoll(duration_val, NULL, 10);
+                av_log(s, AV_LOG_TRACE, "rep->fragment_duration = [%"PRId64"]\n", rep->fragment_duration);
                 xmlFree(duration_val);
             }
             if (timescale_val) {
                 rep->fragment_timescale = (int64_t) strtoll(timescale_val, NULL, 10);
+                av_log(s, AV_LOG_TRACE, "rep->fragment_timescale = [%"PRId64"]\n", rep->fragment_timescale);
                 xmlFree(timescale_val);
             }
             if (startnumber_val) {
                 rep->first_seq_no = (int64_t) strtoll(startnumber_val, NULL, 10);
+                av_log(s, AV_LOG_TRACE, "rep->first_seq_no = [%"PRId64"]\n", rep->first_seq_no);
                 xmlFree(startnumber_val);
             }
             if (adaptionset_supplementalproperty_node) {
@@ -982,10 +992,12 @@ static int parse_manifest_representation(AVFormatContext *s, const char *url,
             timescale_val = get_val_from_nodes_tab(segmentlists_tab, 2, "timescale");
             if (duration_val) {
                 rep->fragment_duration = (int64_t) strtoll(duration_val, NULL, 10);
+                av_log(s, AV_LOG_TRACE, "rep->fragment_duration = [%"PRId64"]\n", rep->fragment_duration);
                 xmlFree(duration_val);
             }
             if (timescale_val) {
                 rep->fragment_timescale = (int64_t) strtoll(timescale_val, NULL, 10);
+                av_log(s, AV_LOG_TRACE, "rep->fragment_timescale = [%"PRId64"]\n", rep->fragment_timescale);
                 xmlFree(timescale_val);
             }
             fragmenturl_node = xmlFirstElementChild(representation_segmentlist_node);
@@ -1068,12 +1080,26 @@ static int parse_manifest_adaptationset(AVFormatContext *s, const char *url,
                                         xmlNodePtr period_segmentlist_node)
 {
     int ret = 0;
+    DASHContext *c = s->priv_data;
     xmlNodePtr fragment_template_node = NULL;
     xmlNodePtr content_component_node = NULL;
     xmlNodePtr adaptionset_baseurl_node = NULL;
     xmlNodePtr adaptionset_segmentlist_node = NULL;
     xmlNodePtr adaptionset_supplementalproperty_node = NULL;
     xmlNodePtr node = NULL;
+    c->adaptionset_contenttype_val = xmlGetProp(adaptionset_node, "contentType");
+    c->adaptionset_par_val = xmlGetProp(adaptionset_node, "par");
+    c->adaptionset_lang_val = xmlGetProp(adaptionset_node, "lang");
+    c->adaptionset_minbw_val = xmlGetProp(adaptionset_node, "minBandwidth");
+    c->adaptionset_maxbw_val = xmlGetProp(adaptionset_node, "maxBandwidth");
+    c->adaptionset_minwidth_val = xmlGetProp(adaptionset_node, "minWidth");
+    c->adaptionset_maxwidth_val = xmlGetProp(adaptionset_node, "maxWidth");
+    c->adaptionset_minheight_val = xmlGetProp(adaptionset_node, "minHeight");
+    c->adaptionset_maxheight_val = xmlGetProp(adaptionset_node, "maxHeight");
+    c->adaptionset_minframerate_val = xmlGetProp(adaptionset_node, "minFrameRate");
+    c->adaptionset_maxframerate_val = xmlGetProp(adaptionset_node, "maxFrameRate");
+    c->adaptionset_segmentalignment_val = xmlGetProp(adaptionset_node, "segmentAlignment");
+    c->adaptionset_bitstreamswitching_val = xmlGetProp(adaptionset_node, "bitstreamSwitching");
 
     node = xmlFirstElementChild(adaptionset_node);
     while (node) {
@@ -1121,6 +1147,7 @@ static int parse_manifest(AVFormatContext *s, const char *url, AVIOContext *in)
     xmlNodePtr root_element = NULL;
     xmlNodePtr node = NULL;
     xmlNodePtr period_node = NULL;
+    xmlNodePtr tmp_node = NULL;
     xmlNodePtr mpd_baseurl_node = NULL;
     xmlNodePtr period_baseurl_node = NULL;
     xmlNodePtr period_segmenttemplate_node = NULL;
@@ -1134,7 +1161,7 @@ static int parse_manifest(AVFormatContext *s, const char *url, AVIOContext *in)
     if (!in) {
         close_in = 1;
 
-        set_httpheader_options(c, &opts);
+        av_dict_copy(&opts, c->avio_opts, 0);
         ret = avio_open2(&in, url, AVIO_FLAG_READ, c->interrupt_callback, &opts);
         av_dict_free(&opts);
         if (ret < 0)
@@ -1198,25 +1225,37 @@ static int parse_manifest(AVFormatContext *s, const char *url, AVIOContext *in)
 
             if (!av_strcasecmp(attr->name, (const char *)"availabilityStartTime")) {
                 c->availability_start_time = get_utc_date_time_insec(s, (const char *)val);
+                av_log(s, AV_LOG_TRACE, "c->availability_start_time = [%"PRId64"]\n", c->availability_start_time);
+            } else if (!av_strcasecmp(attr->name, (const char *)"availabilityEndTime")) {
+                c->availability_end_time = get_utc_date_time_insec(s, (const char *)val);
+                av_log(s, AV_LOG_TRACE, "c->availability_end_time = [%"PRId64"]\n", c->availability_end_time);
             } else if (!av_strcasecmp(attr->name, (const char *)"publishTime")) {
                 c->publish_time = get_utc_date_time_insec(s, (const char *)val);
+                av_log(s, AV_LOG_TRACE, "c->publish_time = [%"PRId64"]\n", c->publish_time);
             } else if (!av_strcasecmp(attr->name, (const char *)"minimumUpdatePeriod")) {
                 c->minimum_update_period = get_duration_insec(s, (const char *)val);
+                av_log(s, AV_LOG_TRACE, "c->minimum_update_period = [%"PRId64"]\n", c->minimum_update_period);
             } else if (!av_strcasecmp(attr->name, (const char *)"timeShiftBufferDepth")) {
                 c->time_shift_buffer_depth = get_duration_insec(s, (const char *)val);
+                av_log(s, AV_LOG_TRACE, "c->time_shift_buffer_depth = [%"PRId64"]\n", c->time_shift_buffer_depth);
             } else if (!av_strcasecmp(attr->name, (const char *)"minBufferTime")) {
                 c->min_buffer_time = get_duration_insec(s, (const char *)val);
+                av_log(s, AV_LOG_TRACE, "c->min_buffer_time = [%"PRId64"]\n", c->min_buffer_time);
             } else if (!av_strcasecmp(attr->name, (const char *)"suggestedPresentationDelay")) {
                 c->suggested_presentation_delay = get_duration_insec(s, (const char *)val);
+                av_log(s, AV_LOG_TRACE, "c->suggested_presentation_delay = [%"PRId64"]\n", c->suggested_presentation_delay);
             } else if (!av_strcasecmp(attr->name, (const char *)"mediaPresentationDuration")) {
                 c->media_presentation_duration = get_duration_insec(s, (const char *)val);
+                av_log(s, AV_LOG_TRACE, "c->media_presentation_duration = [%"PRId64"]\n", c->media_presentation_duration);
             }
             attr = attr->next;
             xmlFree(val);
         }
 
-        mpd_baseurl_node = find_child_node_by_name(node, "BaseURL");
-        if (!mpd_baseurl_node) {
+        tmp_node = find_child_node_by_name(node, "BaseURL");
+        if (tmp_node) {
+            mpd_baseurl_node = xmlCopyNode(tmp_node,1);
+        } else {
             mpd_baseurl_node = xmlNewNode(NULL, "BaseURL");
         }
 
@@ -1270,6 +1309,7 @@ cleanup:
         /*free the document */
         xmlFreeDoc(doc);
         xmlCleanupParser();
+        xmlFreeNode(mpd_baseurl_node);
     }
 
     av_free(new_url);
@@ -1288,8 +1328,10 @@ static int64_t calc_cur_seg_no(AVFormatContext *s, struct representation *pls)
 
     if (c->is_live) {
         if (pls->n_fragments) {
+            av_log(s, AV_LOG_TRACE, "in n_fragments mode\n");
             num = pls->first_seq_no;
         } else if (pls->n_timelines) {
+            av_log(s, AV_LOG_TRACE, "in n_timelines mode\n");
             start_time_offset = get_segment_start_time_based_on_timeline(pls, 0xFFFFFFFF) - 60 * pls->fragment_timescale; // 60 seconds before end
             num = calc_next_seg_no_from_timelines(pls, start_time_offset);
             if (num == -1)
@@ -1297,10 +1339,15 @@ static int64_t calc_cur_seg_no(AVFormatContext *s, struct representation *pls)
             else
                 num += pls->first_seq_no;
         } else if (pls->fragment_duration){
+            av_log(s, AV_LOG_TRACE, "in fragment_duration mode fragment_timescale = %"PRId64", presentation_timeoffset = %"PRId64"\n", pls->fragment_timescale, pls->presentation_timeoffset);
             if (pls->presentation_timeoffset) {
-                num = pls->presentation_timeoffset * pls->fragment_timescale / pls->fragment_duration;
+                num = pls->first_seq_no + (((get_current_time_in_sec() - c->availability_start_time) * pls->fragment_timescale)-pls->presentation_timeoffset) / pls->fragment_duration - c->min_buffer_time;
             } else if (c->publish_time > 0 && !c->availability_start_time) {
-                num = pls->first_seq_no + (((c->publish_time - c->availability_start_time) - c->suggested_presentation_delay) * pls->fragment_timescale) / pls->fragment_duration;
+                if (c->min_buffer_time) {
+                    num = pls->first_seq_no + (((c->publish_time + pls->fragment_duration) - c->suggested_presentation_delay) * pls->fragment_timescale) / pls->fragment_duration - c->min_buffer_time;
+                } else {
+                    num = pls->first_seq_no + (((c->publish_time - c->time_shift_buffer_depth + pls->fragment_duration) - c->suggested_presentation_delay) * pls->fragment_timescale) / pls->fragment_duration;
+                }
             } else {
                 num = pls->first_seq_no + (((get_current_time_in_sec() - c->availability_start_time) - c->suggested_presentation_delay) * pls->fragment_timescale) / pls->fragment_duration;
             }
@@ -1317,6 +1364,7 @@ static int64_t calc_min_seg_no(AVFormatContext *s, struct representation *pls)
     int64_t num = 0;
 
     if (c->is_live && pls->fragment_duration) {
+        av_log(s, AV_LOG_TRACE, "in live mode\n");
         num = pls->first_seq_no + (((get_current_time_in_sec() - c->availability_start_time) - c->time_shift_buffer_depth) * pls->fragment_timescale) / pls->fragment_duration;
     } else {
         num = pls->first_seq_no;
@@ -1334,7 +1382,12 @@ static int64_t calc_max_seg_no(struct representation *pls, DASHContext *c)
         int i = 0;
         num = pls->first_seq_no + pls->n_timelines - 1;
         for (i = 0; i < pls->n_timelines; i++) {
-            num += pls->timelines[i]->repeat;
+            if (pls->timelines[i]->repeat == -1) {
+                int length_of_each_segment = pls->timelines[i]->duration / pls->fragment_timescale;
+                num =  c->period_duration / length_of_each_segment;
+            } else {
+                num += pls->timelines[i]->repeat;
+            }
         }
     } else if (c->is_live && pls->fragment_duration) {
         num = pls->first_seq_no + (((get_current_time_in_sec() - c->availability_start_time)) * pls->fragment_timescale)  / pls->fragment_duration;
@@ -1395,7 +1448,7 @@ static int refresh_manifest(AVFormatContext *s)
     c->videos = NULL;
     c->n_audios = 0;
     c->audios = NULL;
-    ret = parse_manifest(s, s->filename, NULL);
+    ret = parse_manifest(s, s->url, NULL);
     if (ret)
         goto finish;
 
@@ -1537,14 +1590,8 @@ static struct fragment *get_current_fragment(struct representation *pls)
     return seg;
 }
 
-enum ReadFromURLMode {
-    READ_NORMAL,
-    READ_COMPLETE,
-};
-
 static int read_from_url(struct representation *pls, struct fragment *seg,
-                         uint8_t *buf, int buf_size,
-                         enum ReadFromURLMode mode)
+                         uint8_t *buf, int buf_size)
 {
     int ret;
 
@@ -1552,14 +1599,7 @@ static int read_from_url(struct representation *pls, struct fragment *seg,
     if (seg->size >= 0)
         buf_size = FFMIN(buf_size, pls->cur_seg_size - pls->cur_seg_offset);
 
-    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");
-        }
-    } else {
-        ret = avio_read(pls->input, buf, buf_size);
-    }
+    ret = avio_read(pls->input, buf, buf_size);
     if (ret > 0)
         pls->cur_seg_offset += ret;
 
@@ -1576,7 +1616,7 @@ static int open_input(DASHContext *c, struct representation *pls, struct fragmen
     if (!url) {
         goto cleanup;
     }
-    set_httpheader_options(c, &opts);
+
     if (seg->size >= 0) {
         /* try to restrict the HTTP request to the part we want
          * (if this is in fact a HTTP request) */
@@ -1635,7 +1675,7 @@ static int update_init_section(struct representation *pls)
     av_fast_malloc(&pls->init_sec_buf, &pls->init_sec_buf_size, sec_size);
 
     ret = read_from_url(pls, pls->init_section, pls->init_sec_buf,
-                        pls->init_sec_buf_size, READ_COMPLETE);
+                        pls->init_sec_buf_size);
     ff_format_io_close(pls->parent, &pls->input);
 
     if (ret < 0)
@@ -1706,7 +1746,7 @@ restart:
         ret = AVERROR_EOF;
         goto end;
     }
-    ret = read_from_url(v, v->cur_seg, buf, buf_size, READ_NORMAL);
+    ret = read_from_url(v, v->cur_seg, buf, buf_size);
     if (ret > 0)
         goto end;
 
@@ -1723,7 +1763,7 @@ end:
 static int save_avio_options(AVFormatContext *s)
 {
     DASHContext *c = s->priv_data;
-    const char *opts[] = { "headers", "user_agent", "user-agent", "cookies", NULL }, **opt = opts;
+    const char *opts[] = { "headers", "user_agent", "cookies", NULL }, **opt = opts;
     uint8_t *buf = NULL;
     int ret = 0;
 
@@ -1751,7 +1791,7 @@ static int nested_io_open(AVFormatContext *s, AVIOContext **pb, const char *url,
     av_log(s, AV_LOG_ERROR,
            "A DASH playlist item '%s' referred to an external file '%s'. "
            "Opening this file was forbidden for security reasons\n",
-           s->filename, url);
+           s->url, url);
     return AVERROR(EPERM);
 }
 
@@ -1776,6 +1816,12 @@ static int reopen_demux_for_component(AVFormatContext *s, struct representation
     if (pls->ctx) {
         close_demux_for_component(pls);
     }
+
+    if (ff_check_interrupt(&s->interrupt_callback)) {
+        ret = AVERROR_EXIT;
+        goto fail;
+    }
+
     if (!(pls->ctx = avformat_alloc_context())) {
         ret = AVERROR(ENOMEM);
         goto fail;
@@ -1867,28 +1913,22 @@ fail:
     return ret;
 }
 
-static int init_section_compare_video(DASHContext *c)
+static int is_common_init_section_exist(struct representation **pls, int n_pls)
 {
+    struct fragment *first_init_section = pls[0]->init_section;
+    char *url =NULL;
+    int64_t url_offset = -1;
+    int64_t size = -1;
     int i = 0;
-    char *url = c->videos[0]->init_section->url;
-    int64_t url_offset = c->videos[0]->init_section->url_offset;
-    int64_t size = c->videos[0]->init_section->size;
-    for (i=0;i<c->n_videos;i++) {
-        if (av_strcasecmp(c->videos[i]->init_section->url,url) || c->videos[i]->init_section->url_offset != url_offset || c->videos[i]->init_section->size != size) {
-            return 0;
-        }
-    }
-    return 1;
-}
 
-static int init_section_compare_audio(DASHContext *c)
-{
-    int i = 0;
-    char *url = c->audios[0]->init_section->url;
-    int64_t url_offset = c->audios[0]->init_section->url_offset;
-    int64_t size = c->audios[0]->init_section->size;
-    for (i=0;i<c->n_audios;i++) {
-        if (av_strcasecmp(c->audios[i]->init_section->url,url) || c->audios[i]->init_section->url_offset != url_offset || c->audios[i]->init_section->size != size) {
+    if (first_init_section == NULL || n_pls == 0)
+        return 0;
+
+    url = first_init_section->url;
+    url_offset = first_init_section->url_offset;
+    size = pls[0]->init_section->size;
+    for (i=0;i<n_pls;i++) {
+        if (av_strcasecmp(pls[i]->init_section->url,url) || pls[i]->init_section->url_offset != url_offset || pls[i]->init_section->size != size) {
             return 0;
         }
     }
@@ -1897,7 +1937,6 @@ static int init_section_compare_audio(DASHContext *c)
 
 static void copy_init_section(struct representation *rep_dest, struct representation *rep_src)
 {
-    memcpy(rep_dest->init_section, rep_src->init_section, sizeof(rep_src->init_section));
     rep_dest->init_sec_buf = av_mallocz(rep_src->init_sec_buf_size);
     memcpy(rep_dest->init_sec_buf, rep_src->init_sec_buf, rep_src->init_sec_data_len);
     rep_dest->init_sec_buf_size = rep_src->init_sec_buf_size;
@@ -1908,24 +1947,19 @@ static void copy_init_section(struct representation *rep_dest, struct representa
 
 static int dash_read_header(AVFormatContext *s)
 {
-    void *u = (s->flags & AVFMT_FLAG_CUSTOM_IO) ? NULL : s->pb;
     DASHContext *c = s->priv_data;
     int ret = 0;
     int stream_index = 0;
     int i;
 
     c->interrupt_callback = &s->interrupt_callback;
-    // if the URL context is good, read important options we must broker later
-    if (u) {
-        update_options(&c->user_agent, "user-agent", u);
-        update_options(&c->cookies, "cookies", u);
-        update_options(&c->headers, "headers", u);
-    }
 
-    if ((ret = parse_manifest(s, s->filename, s->pb)) < 0)
+    if ((ret = save_avio_options(s)) < 0)
         goto fail;
 
-    if ((ret = save_avio_options(s)) < 0)
+    av_dict_set(&c->avio_opts, "seekable", "0", 0);
+
+    if ((ret = parse_manifest(s, s->url, s->pb)) < 0)
         goto fail;
 
     /* If this isn't a live stream, fill the total duration of the
@@ -1934,9 +1968,8 @@ static int dash_read_header(AVFormatContext *s)
         s->duration = (int64_t) c->media_presentation_duration * AV_TIME_BASE;
     }
 
-    if (c->n_videos) {
-        c->is_init_section_common_video = init_section_compare_video(c);
-    }
+    if(c->n_videos)
+        c->is_init_section_common_video = is_common_init_section_exist(c->videos, c->n_videos);
 
     /* Open the demuxer for video and audio components if available */
     for (i = 0; i < c->n_videos; i++) {
@@ -1952,9 +1985,8 @@ static int dash_read_header(AVFormatContext *s)
         ++stream_index;
     }
 
-    if (c->n_audios) {
-        c->is_init_section_common_audio = init_section_compare_audio(c);
-    }
+    if(c->n_audios)
+        c->is_init_section_common_audio = is_common_init_section_exist(c->audios, c->n_audios);
 
     for (i = 0; i < c->n_audios; i++) {
         struct representation *cur_audio = c->audios[i];
@@ -2093,8 +2125,6 @@ static int dash_close(AVFormatContext *s)
     free_audio_list(c);
     free_video_list(c);
 
-    av_freep(&c->cookies);
-    av_freep(&c->user_agent);
     av_dict_free(&c->avio_opts);
     av_freep(&c->base_url);
     return 0;