功能完善

UI改进

internal/ffmpeg/executor.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io"
 	"os/exec"
+	"strconv"
 	"strings"
 	"syscall"
 )
@@ -141,6 +142,24 @@ func escapeFilterPath(path string) string {
 	return s
 }
 
+// qualityArg maps a CRF-like quality value to encoder-specific arguments.
+// Software encoders use -crf, NVENC uses -cq, QSV uses -global_quality,
+// and AMF uses -qp_i/-qp_p for constant-quality encoding.
+func qualityArg(codec string, crf int) []string {
+	v := strconv.Itoa(crf)
+	lower := strings.ToLower(codec)
+	switch {
+	case strings.Contains(lower, "nvenc"):
+		return []string{"-cq", v}
+	case strings.Contains(lower, "qsv"):
+		return []string{"-global_quality", v}
+	case strings.Contains(lower, "amf"):
+		return []string{"-qp_i", v, "-qp_p", v}
+	default:
+		return []string{"-crf", v}
+	}
+}
+
 func tailLines(s string, n int) string {
 	lines := strings.Split(s, "\n")
 	if len(lines) > n {
@@ -197,11 +216,11 @@ func BuildEncodeArgs(input string, output string, s EncodeSettings, hwAccel stri
 
 	args = append(args, "-i", input)
 
-	if s.HWEncoder != "" {
-		args = append(args, "-c:v", s.HWEncoder)
-	} else {
-		args = append(args, "-c:v", s.VideoCodec)
+	codec := s.HWEncoder
+	if codec == "" {
+		codec = s.VideoCodec
 	}
+	args = append(args, "-c:v", codec)
 
 	if s.Preset != "" {
 		// libx* uses named presets (fast, medium…), HW encoders use p1–p7
@@ -209,7 +228,7 @@ func BuildEncodeArgs(input string, output string, s EncodeSettings, hwAccel stri
 	}
 
 	if s.CRF > 0 {
-		args = append(args, "-crf", fmt.Sprintf("%d", s.CRF))
+		args = append(args, qualityArg(codec, s.CRF)...)
 	} else if s.VideoBitrate != "" {
 		args = append(args, "-b:v", s.VideoBitrate)
 	}
@@ -327,16 +346,16 @@ func BuildSubtitleArgs(input string, output string, s SubtitleSettings, encode E
 		args = append(args, "-vf", strings.Join(subFilters, ","))
 	}
 
-	if encode.HWEncoder != "" {
-		args = append(args, "-c:v", encode.HWEncoder)
-	} else {
-		args = append(args, "-c:v", encode.VideoCodec)
+	codec := encode.HWEncoder
+	if codec == "" {
+		codec = encode.VideoCodec
 	}
+	args = append(args, "-c:v", codec)
 	if encode.Preset != "" {
 		args = append(args, "-preset", encode.Preset)
 	}
 	if encode.CRF > 0 {
-		args = append(args, "-crf", fmt.Sprintf("%d", encode.CRF))
+		args = append(args, qualityArg(codec, encode.CRF)...)
 	} else if encode.VideoBitrate != "" {
 		args = append(args, "-b:v", encode.VideoBitrate)
 	}