From 165696a57b69fd6ded7d33ea863b3f9e3f91077b Mon Sep 17 00:00:00 2001
From: lee <lixiang12407@gmail.com>
Date: Wed, 22 Mar 2023 23:59:53 +0800
Subject: [PATCH] get ffprobe error from stderr

Signed-off-by: lee <lixiang12407@gmail.com>
---
 probe.go        | 5 ++++-
 probe_reader.go | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/probe.go b/probe.go
index 93ea902..86b795a 100644
--- a/probe.go
+++ b/probe.go
@@ -3,6 +3,7 @@ package ffmpeg_go
 import (
 	"bytes"
 	"context"
+	"fmt"
 	"os/exec"
 	"time"
 )
@@ -33,13 +34,15 @@ func ProbeWithTimeoutExec(fileName string, timeOut time.Duration, kwargs KwArgs)
 	}
 	cmd := exec.CommandContext(ctx, "ffprobe", args...)
 	buf := bytes.NewBuffer(nil)
+	stdErrBuf := bytes.NewBuffer(nil)
 	cmd.Stdout = buf
+	cmd.Stderr = stdErrBuf
 	for _, option := range GlobalCommandOptions {
 		option(cmd)
 	}
 	err := cmd.Run()
 	if err != nil {
-		return "", err
+		return "", fmt.Errorf("[%s] %w", string(stdErrBuf.Bytes()), err)
 	}
 	return string(buf.Bytes()), nil
 }
diff --git a/probe_reader.go b/probe_reader.go
index e45cc22..62c99f5 100644
--- a/probe_reader.go
+++ b/probe_reader.go
@@ -3,6 +3,7 @@ package ffmpeg_go
 import (
 	"bytes"
 	"context"
+	"fmt"
 	"io"
 	"os/exec"
 	"time"
@@ -37,10 +38,12 @@ func ProbeReaderWithTimeoutExec(r io.Reader, timeOut time.Duration, kwargs KwArg
 	cmd := exec.CommandContext(ctx, "ffprobe", args...)
 	cmd.Stdin = r
 	buf := bytes.NewBuffer(nil)
+	stdErrBuf := bytes.NewBuffer(nil)
 	cmd.Stdout = buf
+	cmd.Stderr = stdErrBuf
 	err := cmd.Run()
 	if err != nil {
-		return "", err
+		return "", fmt.Errorf("[%s] %w", string(stdErrBuf.Bytes()), err)
 	}
 	return string(buf.Bytes()), nil
 }