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Code Issues Releases Wiki Activity

refine code for #277, extract the flv vod stream.

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This commit is contained in:
winlin 2015-01-18 09:12:53 +08:00
parent e71bc0cbc5
commit c695a8fcbd
4 changed files with 147 additions and 103 deletions
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99
trunk/src/app/srs_app_http_conn.cpp
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@ -39,6 +39,101 @@ using namespace std;
#include <srs_core_autofree.hpp>
#include <srs_app_config.hpp>
#include <srs_kernel_utility.hpp>
#include <srs_kernel_file.hpp>
#include <srs_kernel_flv.hpp>
SrsVodStream::SrsVodStream(string root_dir)
: SrsGoHttpFileServer(root_dir)
{
}
SrsVodStream::~SrsVodStream()
{
}
int SrsVodStream::serve_flv_stream(ISrsGoHttpResponseWriter* w, SrsHttpMessage* r, string fullpath, int offset)
{
int ret = ERROR_SUCCESS;
SrsFileReader fs;
// open flv file
if ((ret = fs.open(fullpath)) != ERROR_SUCCESS) {
return ret;
}
if (offset > fs.filesize()) {
ret = ERROR_HTTP_FLV_OFFSET_OVERFLOW;
srs_warn("http flv streaming %s overflow. size=%"PRId64", offset=%d, ret=%d",
fullpath.c_str(), fs.filesize(), offset, ret);
return ret;
}
SrsFlvVodStreamDecoder ffd;
// open fast decoder
if ((ret = ffd.initialize(&fs)) != ERROR_SUCCESS) {
return ret;
}
// save header, send later.
char flv_header[13];
// send flv header
if ((ret = ffd.read_header_ext(flv_header)) != ERROR_SUCCESS) {
return ret;
}
// save sequence header, send later
char* sh_data = NULL;
int sh_size = 0;
if (true) {
// send sequence header
int64_t start = 0;
if ((ret = ffd.read_sequence_header_summary(&start, &sh_size)) != ERROR_SUCCESS) {
return ret;
}
if (sh_size <= 0) {
ret = ERROR_HTTP_FLV_SEQUENCE_HEADER;
srs_warn("http flv streaming no sequence header. size=%d, ret=%d", sh_size, ret);
return ret;
}
}
sh_data = new char[sh_size];
SrsAutoFree(char, sh_data);
if ((ret = fs.read(sh_data, sh_size, NULL)) != ERROR_SUCCESS) {
return ret;
}
// seek to data offset
int64_t left = fs.filesize() - offset;
// write http header for ts.
w->header()->set_content_length((int)(sizeof(flv_header) + sh_size + left));
w->header()->set_content_type("video/x-flv");
// write flv header and sequence header.
if ((ret = w->write(flv_header, sizeof(flv_header))) != ERROR_SUCCESS) {
return ret;
}
if (sh_size > 0 && (ret = w->write(sh_data, sh_size)) != ERROR_SUCCESS) {
return ret;
}
// write body.
if ((ret = ffd.lseek(offset)) != ERROR_SUCCESS) {
return ret;
}
// send data
if ((ret = copy(&fs, w, r, left)) != ERROR_SUCCESS) {
srs_warn("read flv=%s size=%d failed, ret=%d", fullpath.c_str(), left, ret);
return ret;
}
return ret;
}
SrsHttpServer::SrsHttpServer()
{
@ -71,7 +166,7 @@ int SrsHttpServer::initialize()
std::string mount = _srs_config->get_vhost_http_mount(vhost);
std::string dir = _srs_config->get_vhost_http_dir(vhost);
if ((ret = mux.handle(mount, new SrsGoHttpFileServer(dir))) != ERROR_SUCCESS) {
if ((ret = mux.handle(mount, new SrsVodStream(dir))) != ERROR_SUCCESS) {
srs_error("http: mount dir=%s for vhost=%s failed. ret=%d", dir.c_str(), vhost.c_str(), ret);
return ret;
}
@ -84,7 +179,7 @@ int SrsHttpServer::initialize()
if (!default_root_exists) {
// add root
std::string dir = _srs_config->get_http_stream_dir();
if ((ret = mux.handle("/", new SrsGoHttpFileServer(dir))) != ERROR_SUCCESS) {
if ((ret = mux.handle("/", new SrsVodStream(dir))) != ERROR_SUCCESS) {
srs_error("http: mount root dir=%s failed. ret=%d", dir.c_str(), ret);
return ret;
}