external/srs
1
0
Fork 0
mirror of https://github.com/ossrs/srs.git synced 2025-02-14 20:31:56 +00:00
Code Issues Releases Wiki Activity

add research empty ffmpeg

Browse source
This commit is contained in:
winlin 2013-11-30 21:53:28 +08:00
parent 80a81b1661
commit 06278176dd
4 changed files with 69 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
trunk/conf/srs.conf
View file

@ -18,7 +18,7 @@ vhost __defaultVhost__ {
#forward 127.0.0.1:1936;
transcode {
enabled on;
ffmpeg ./objs/ffmpeg/bin/ffmpeg;
ffmpeg /home/winlin/srs/objs/ffmpeg/bin/ffmpeg;
engine fd{
enabled on;
vcodec libx264;

65
trunk/src/core/srs_core_encoder.cpp
View file

@ -23,6 +23,9 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <srs_core_encoder.hpp>
#include <stdlib.h>
#include <unistd.h>
#include <srs_core_error.hpp>
#include <srs_core_log.hpp>
#include <srs_core_config.hpp>
@ -35,6 +38,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
SrsFFMPEG::SrsFFMPEG(std::string ffmpeg_bin)
{
started = false;
pid = -1;
ffmpeg = ffmpeg_bin;
vbitrate = 0;
@ -75,6 +79,14 @@ int SrsFFMPEG::initialize(std::string vhost, std::string port, std::string app,
// ensure the size is even.
vwidth -= vwidth % 2;
vheight -= vheight % 2;
// input stream, from local.
input = "rtmp://127.0.0.1:";
input += port;
input += "/";
input += app;
input += "/";
input += stream;
if (vhost == RTMP_VHOST_DEFAULT) {
output = srs_replace(output, "[vhost]", "127.0.0.1");
@ -167,6 +179,59 @@ int SrsFFMPEG::start()
return ret;
}
// prepare execl params
char vsize[22];
snprintf(vsize, sizeof(vsize), "%dx%d", vwidth, vheight);
char vaspect[22];
snprintf(vaspect, sizeof(vaspect), "%d:%d", vwidth, vheight);
// we use vfork, for we use fored process
// to start ffmpeg, that is, exec after vfork.
if ((pid = fork()) < 0) {
ret = ERROR_ENCODER_FORK;
srs_error("vfork process failed. ret=%d", ret);
return ret;
}
// child process: ffmpeg encoder engine.
if (pid == 0) {
// must exec immediately, or may introduce bug.
ret = execl(ffmpeg.c_str(),
"-i", input.c_str(),
// video specified.
"-vcodec", vcodec.c_str(),
"-b:v", vbitrate * 1000,
"-r", vfps,
"-size", vsize,
"-aspect", vaspect, // TODO: add aspect if needed.
"-threads", vthreads,
"-profile", vprofile.c_str(),
"-preset", vpreset.c_str(),
vparams.c_str(),
// audio specified.
"-acodec", acodec.c_str(),
"-b:a", abitrate * 1000,
"-ar", asample_rate,
"-ac", achannels,
aparams.c_str(),
"-f", "flv",
"-y", output.c_str(),
NULL
);
if (ret < 0) {
fprintf(stderr, "fork ffmpeg failed, errno=%d(%s)",
errno, strerror(errno));
}
exit(ret);
}
// parent.
if (pid > 0) {
started = true;
srs_trace("vfored ffmpeg encoder engine, pid=%d", pid);
return ret;
}
return ret;
}

2
trunk/src/core/srs_core_encoder.hpp
View file

@ -44,6 +44,7 @@ class SrsFFMPEG
{
private:
bool started;
pid_t pid;
private:
std::string ffmpeg;
std::string vcodec;
@ -61,6 +62,7 @@ private:
int achannels;
std::string aparams;
std::string output;
std::string input;
public:
SrsFFMPEG(std::string ffmpeg_bin);
virtual ~SrsFFMPEG();

1
trunk/src/core/srs_core_error.hpp
View file

@ -135,5 +135,6 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define ERROR_ENCODER_VWIDTH 710
#define ERROR_ENCODER_VFPS 711
#define ERROR_ENCODER_VBITRATE 712
#define ERROR_ENCODER_FORK 713
#endif