Incomplete conversion of certain Apple H.265 MOV "hstack"

[gegegegege]

Summary of the bug:
How to reproduce:

ffmpeg version 7.1
built on essentials

internal class Program
    {
        public static void Main(string[] args)
        {
            // 定义FFmpeg可执行文件的路径，如果FFmpeg已添加到系统路径，则可以直接使用"ffmpeg"
            string ffmpegPath = @"F:\ffmpeg-7.1-essentials_build\bin\ffmpeg.exe";

            // 定义输入和输出文件路径
            string inputFile = "D:\\gege\\_平面空间视频\\_苹果立体视频\\新建文件夹\\IMG_1940_1.MOV";
            string outputFile = "D:\\gege\\_平面空间视频\\_苹果立体视频\\新建文件夹\\IMG_1940_1UD.mp4";

            // 定义FFmpeg命令参数
            string arguments = $"-i \"{inputFile}\" -filter_complex \"[0：v：view：0][0：v：view：1]hstack\" -c:v hevc -tag:v hvc1 \"{outputFile}\"";

            // 创建一个ProcessStartInfo对象来配置FFmpeg进程
            ProcessStartInfo startInfo = new ProcessStartInfo
            {
                FileName = ffmpegPath,
                Arguments = arguments,
                RedirectStandardOutput = true,
                RedirectStandardError = true,
                UseShellExecute = false,
                CreateNoWindow = false
                //WindowStyle = ProcessWindowStyle.Maximized,
            };

           
            Process process = Process.Start(startInfo);


            
            //process.WaitForExit();

            

            //
            // Process.Start(@"F:\ffmpeg-7.1-essentials_build\bin\ffmpeg.exe",
            //     "-i \"D:\\gege\\_平面空间视频\\_苹果立体视频\\新建文件夹\\IMG_1940_1.MOV\" -filter_complex \"[0：v：view：0][0：v：view：1]hstack\" -c:v hevc -tag:v hvc1 \"D:\\gege\\_平面空间视频\\_苹果立体视频\\新建文件夹\\IMG_1940_1UD.mp4\"");
            //


       
            // 启动FFmpeg进程
            /*using (Process process = Process.Start(startInfo))
            {
                // 读取标准输出和错误流（可选）
                string output = process.StandardOutput.ReadToEnd();
                string errors = process.StandardError.ReadToEnd();

                // 等待FFmpeg进程结束
                process.WaitForExit();

                // 检查是否有错误发生（可选）
                if (!string.IsNullOrEmpty(errors))
                {
                    Console.WriteLine("Errors occurred during conversion:");
                    Console.WriteLine(errors);
                }
                else
                {
                    Console.WriteLine("Conversion completed successfully.");
                }
            }*/
        }
    }

[gegegegege]

The video is a space video shot by Apple 15promax

[MasterQuestionable]

͏    C# wrapper calling "ffmpeg.exe"?
͏    Is such an example of Object-Oriented Obfuscation..?

͏    Decipher your input into regular command line and try with "-v debug".
͏    Try removing excessive options to ascertain the minimal one.

[MasterQuestionable]

͏    "：" is not ":".
͏    (besides the unusual stream label syntax and invocation)

͏    Interpreted:
͏    ffmpeg -v debug -hide_banner -nostdin -nostats -i "In.mov" -filter_complex "[0：v：view：0][0：v：view：1]hstack" -c:v hevc -tag:v hvc1 "Out.mp4"

[gegegegege]

I tested the situation yesterday: in the command line window, it is possible to transfer sbs video completely. Once using c# to call ffmpeg.exe for conversion, the video can not be converted completely, sometimes converted to 3 seconds and sometimes converted to 5 seconds.

Now that I have added the debug command, here is the printed log when it stops before converting completely.(The video has 771 frames)

[hevc @ 000002a462c8c340] Output frame with POC 0/112.
[out#0/mp4 @ 000002a462266080] sq: receive 1 ts 5.01551 queue head -1 ts N/A
[out#0/mp4 @ 000002a462266080] sq: send 0 ts 3.333333
[out#0/mp4 @ 000002a462266080] sq: receive 0 ts 3.333333 queue head -1 ts N/A
[hevc @ 000002a462e1e880] Decoded frame with POC 0/116.
[hevc @ 000002a462c8c340] Decoded frame with POC 0/114.
[hevc @ 000002a462facac0] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 0, temporal_id: 0
[out#0/mp4 @ 000002a462266080] sq: send 1 ts 5.060499
[hevc @ 000002a462facac0] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 1, temporal_id: 0
[out#0/mp4 @ 000002a462266080] sq: receive 1 ts 5.03873 queue head -1 ts N/A
[hevc @ 000002a462facac0] Output frame with POC 0/113.
[out#0/mp4 @ 000002a462266080] sq: send 0 ts 3.366667
[out#0/mp4 @ 000002a462266080] sq: receive 0 ts 3.366667 queue head -1 ts N/A
[hevc @ 000002a462facac0] Decoded frame with POC 0/113.
[out#0/mp4 @ 000002a462266080] sq: send 1 ts 5.083719
[hevc @ 000002a46232c680] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 0, temporal_id: 0
[out#0/mp4 @ 000002a462266080] sq: receive 1 ts 5.06195 queue head -1 ts N/A
[hevc @ 000002a46232c680] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 1, temporal_id: 0
[out#0/mp4 @ 000002a462266080] sq: send 0 ts 3.4
[hevc @ 000002a46232c680] Output frame with POC 0/114.
[out#0/mp4 @ 000002a462266080] sq: receive 0 ts 3.4 queue head -1 ts N/A
[hevc @ 000002a46232c680] Decoded frame with POC 0/115.
[out#0/mp4 @ 000002a462266080] sq: send 1 ts 5.106939
[hevc @ 000002a4622d8080] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 0, temporal_id: 0
[out#0/mp4 @ 000002a462266080] sq: receive 1 ts 5.08517 queue head -1 ts N/A
[hevc @ 000002a4622d8080] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 1, temporal_id: 0
[out#0/mp4 @ 000002a462266080] sq: send 1 ts 5.130159
[hevc @ 000002a4622d8080] Output frame with POC 0/115.
[out#0/mp4 @ 000002a462266080] sq: receive 1 ts 5.10839 queue head -1 ts N/A
[out#0/mp4 @ 000002a462266080] sq: send 0 ts 3.433333
[out#0/mp4 @ 000002a462266080] sq: receive 0 ts 3.433333 queue head -1 ts N/A
[out#0/mp4 @ 000002a462266080] sq: send 1 ts 5.153379
[hevc @ 000002a462726240] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 0, temporal_id: 0
[out#0/mp4 @ 000002a462266080] sq: receive 1 ts 5.13161 queue head -1 ts N/A
[hevc @ 000002a462726240] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 1, temporal_id: 0
[out#0/mp4 @ 000002a462266080] sq: send 1 ts 5.176599
[hevc @ 000002a462726240] Output frame with POC 0/116.
[out#0/mp4 @ 000002a462266080] sq: receive 1 ts 5.15483 queue head -1 ts N/A
[out#0/mp4 @ 000002a462266080] sq: send 0 ts 3.466667
[out#0/mp4 @ 000002a462266080] sq: receive 0 ts 3.466667 queue head -1 ts N/A
[hevc @ 000002a4622d8080] Decoded frame with POC 0/120.
[hevc @ 000002a462726240] Decoded frame with POC 0/118.

Process finished with exit code -532,462,766.

[MasterQuestionable]

͏    Then it feels like something abnormal with the calling wrapper?
͏    And the strange exit code also feels unusual.

͏    Also, does "：" really work..?
͏    (haven't tried; but doubt it, per the typical behavior of various programming interfaces)

[gegegegege]

Instead, the following code can call ffmpeg in c# and convert the full video. I'd like to ask you two more questions. One problem is that the print progress is supposed to be a regular log, not an error log. Why can't I use OutputDataReceived to receive it? The second problem is: how can I use ffmpeg to recognize that a mov file is an Apple space video, because there are other mov files that are not Apple space videos. Thank you very much.

   public static void Main(string[] args)
        {
            string ffmpegPath = @"F:\ffmpeg-7.1-essentials_build\bin\ffmpeg.exe";
            string inputFile = "D:\\gege\\_平面空间视频\\_苹果立体视频\\新建文件夹\\IMG_1940_1.MOV";
            string outputFile = "D:\\gege\\_平面空间视频\\_苹果立体视频\\新建文件夹\\IMG_1940_1UD.mp4";
            string arguments =
                $"-v debug -hide_banner -nostdin -nostats -i \"{inputFile}\" -filter_complex \"[0：v：view：0][0：v：view：1]hstack\" -c:v hevc -tag:v hvc1 \"{outputFile}\"";
            
            try
            {
                using (Process myProcess = new Process())
                {
                    myProcess.StartInfo.UseShellExecute = false;
                    myProcess.StartInfo.FileName = ffmpegPath;
                    myProcess.StartInfo.Arguments = arguments;
                    myProcess.StartInfo.CreateNoWindow = true;
                    myProcess.StartInfo.RedirectStandardError = true;
                    myProcess.StartInfo.RedirectStandardOutput = true;
                    myProcess.Start();

                    myProcess.ErrorDataReceived += delegate(object sender, DataReceivedEventArgs eventArgs) { Console.WriteLine(eventArgs.Data); };
                    //myProcess.OutputDataReceived += delegate(object sender, DataReceivedEventArgs eventArgs) { Console.WriteLine(eventArgs.Data); };  //inVain
                    myProcess.BeginErrorReadLine();
                    
                    myProcess.WaitForExit();
                    
                }
            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }
        }

[MasterQuestionable]

͏    No idea what happens with C#'s circumlocution...

͏    ffprobe -hide_banner -threads 0 -show_entries "stream=time_base:format=size" -of "flat=h=0" "${In}"
͏    ; alike shall reflect content details.
͏    (or `ffmpeg -i "${In}"` derived)

͏    Refer also: ​https://trac.ffmpeg.org/ticket/11005#comment:14