From dc65b072a13994ff02cc7b54f3b00ba087e7f86a Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期三, 20 十一月 2019 14:05:52 +0800
Subject: [PATCH] add zerocopy
---
gostream.go | 21 ++++++++++++++++++++-
1 files changed, 20 insertions(+), 1 deletions(-)
diff --git a/gostream.go b/gostream.go
index dc94166..7ae6636 100644
--- a/gostream.go
+++ b/gostream.go
@@ -14,13 +14,32 @@
var size C.int
p := C.wrap_fn_get_avpacket(unsafe.Pointer(libcffmpeg), h.ffmpeg, &size, &key)
+ defer C.free(unsafe.Pointer(p))
if size <= 0 {
return nil, 0, -1
}
- defer C.free(unsafe.Pointer(p))
d := C.GoBytes(p, size)
s := int(size)
k := int(key)
return d, s, k
}
+
+//GetAVPacket2 get AVPacket
+func (h *GoFFMPEG) GetAVPacket2() (unsafe.Pointer, []byte, int, int) {
+ var key C.int
+ var size C.int
+
+ p := C.wrap_fn_get_avpacket(unsafe.Pointer(libcffmpeg), h.ffmpeg, &size, &key)
+ if size <= 0 {
+ return nil, nil, 0, -1
+ }
+
+ const maxLen = 0x7fffffff
+ length := int(size)
+ data := (*[maxLen]byte)(unsafe.Pointer(p))[:length:length]
+
+ k := int(key)
+
+ return p, data, length, k
+}
--
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