remove video specific stuff, base off of video, and add support for HTML

ffmpeg/callback.go

@@ -1,55 +0,0 @@
-package ffmpeg
-
-// #include "ffmpeg.h"
-import "C"
-import (
-	"github.com/cshum/imagor/vips/pointer"
-	"io"
-	"reflect"
-	"unsafe"
-)
-
-//export goPacketRead
-func goPacketRead(opaque unsafe.Pointer, buffer *C.uint8_t, bufSize C.int) C.int {
-	ctx, ok := pointer.Restore(opaque).(*AVContext)
-	if !ok || ctx.reader == nil {
-		return C.int(ErrUnknown)
-	}
-	size := int(bufSize)
-	sh := &reflect.SliceHeader{
-		Data: uintptr(unsafe.Pointer(buffer)),
-		Len:  size,
-		Cap:  size,
-	}
-	buf := *(*[]byte)(unsafe.Pointer(sh))
-	n, err := ctx.reader.Read(buf)
-	if err == io.EOF {
-		if n == 0 {
-			return C.int(ErrEOF)
-		}
-	} else if err != nil {
-		return C.int(ErrUnknown)
-	}
-	return C.int(n)
-}
-
-//export goPacketSeek
-func goPacketSeek(opaque unsafe.Pointer, offset C.int64_t, whence C.int) C.int64_t {
-	ctx, ok := pointer.Restore(opaque).(*AVContext)
-	if !ok || ctx.seeker == nil {
-		return C.int64_t(ErrUnknown)
-	}
-	if whence == C.AVSEEK_SIZE {
-		return C.int64_t(ctx.size)
-	}
-	n, err := ctx.seeker.Seek(int64(offset), int(whence))
-	if err != nil {
-		return C.int64_t(ErrUnknown)
-	}
-	return C.int64_t(n)
-}
-
-//export goAVLoggingHandler
-func goAVLoggingHandler(level C.int, cstr *C.char) {
-	log(AVLogLevel(level), C.GoString(cstr))
-}