static int hls_parse_request(HTTPContext *c, char *name, int is_first)
{
int idx = -1, ret = 0;
char *ext = NULL;
HLS *s = NULL;
ext = strrchr(name, '.');
if(!ext){
http_log("bad name %s\n", name);
return -1;
}
if(ext - name > sizeof(s_hls_name)-1){
http_log("name %s too long\n", name);
return -1;
}
if(!strcmp(ext, ".m3u8")){
idx = S;
}else if(!strcmp(ext, ".ts")){
idx = ext[-1] - '0';//todo: S > 10 without get basename.
if(!(0 <= idx && idx < S)){
http_log("too large index %d\n", idx);
return -1;
}
}
if(-1 == idx){
http_log("unkown name %s\n", name);
return -1;
}
c->hls_idx = idx;
s = &s_hls[idx];
if(c->post){/*writer*/
//todo: close http conn with same name
//http_log("hls post c %p name %s:%d data %p size %d:%d\n", c, name, idx, s->data, s->msize, s->csize);
if(!s->data){
s->data = av_malloc(SEG_INC_SIZE);
s->msize = SEG_INC_SIZE;
}else{
/*intended not to free*/
}
//todo: if someone is reading
s->flag = 1;
s->csize = 0;
c->hls_wpos = 0;
c->http_error = 0;
c->state = HTTPSTATE_RECEIVE_DATA;
ret = 0;
}else{/*reader*/
if(is_first && (S == idx) && strncmp(s_hls_name, name, ext-name) ){
hls_close();
strncpy(s_hls_name, name, ext - name);
s_hls_name[ext - name] = 0;
ret = 1; /*request switch*/
}
c->hls_rpos = 0;
c->http_error = 0;
c->state = HTTPSTATE_SEND_HEADER;
}
return ret;
}
static int hls_open(URLContext *h, const char *uri, int flags)
{
HLSContext *s = h->priv_data;
int ret, i;
const char *nested_url;
if (flags & AVIO_FLAG_WRITE)
return AVERROR(ENOSYS);
h->is_streamed = 1;
if (av_strstart(uri, "hls+", &nested_url)) {
av_strlcpy(s->playlisturl, nested_url, sizeof(s->playlisturl));
} else if (av_strstart(uri, "hls://", &nested_url)) {
av_log(h, AV_LOG_ERROR,
"No nested protocol specified. Specify e.g. hls+http://%s\n",
nested_url);
ret = AVERROR(EINVAL);
goto fail;
} else {
av_log(h, AV_LOG_ERROR, "Unsupported url %s\n", uri);
ret = AVERROR(EINVAL);
goto fail;
}
av_log(h, AV_LOG_WARNING,
"Using the hls protocol is discouraged, please try using the "
"hls demuxer instead. The hls demuxer should be more complete "
"and work as well as the protocol implementation. (If not, "
"please report it.) To use the demuxer, simply use %s as url.\n",
s->playlisturl);
if ((ret = parse_playlist(h, s->playlisturl)) < 0)
goto fail;
if (s->n_segments == 0 && s->n_variants > 0) {
int max_bandwidth = 0, maxvar = -1;
for (i = 0; i < s->n_variants; i++) {
if (s->variants[i]->bandwidth > max_bandwidth || i == 0) {
max_bandwidth = s->variants[i]->bandwidth;
maxvar = i;
}
}
av_strlcpy(s->playlisturl, s->variants[maxvar]->url,
sizeof(s->playlisturl));
if ((ret = parse_playlist(h, s->playlisturl)) < 0)
goto fail;
}
if (s->n_segments == 0) {
av_log(h, AV_LOG_WARNING, "Empty playlist\n");
ret = AVERROR(EIO);
goto fail;
}
s->cur_seq_no = s->start_seq_no;
if (!s->finished && s->n_segments >= 3)
s->cur_seq_no = s->start_seq_no + s->n_segments - 3;
return 0;
fail:
hls_close(h);
return ret;
}
