Merge fe01d245b6 into 64766459e3

test/test_downloader_external.py

@@ -120,19 +120,22 @@ class TestFFmpegFD(unittest.TestCase):
             downloader._call_downloader('test', {**TEST_INFO, 'ext': 'mp4'})
             self.assertEqual(self._args, [
                 'ffmpeg', '-y', '-hide_banner', '-i', 'http://www.example.com/',
-                '-c', 'copy', '-f', 'mp4', 'file:test'])
+                '-c', 'copy', '-f', 'mp4', 'file:test', '-progress', 'pipe:1'])
 
             # Test cookies arg is added
             ydl.cookiejar.set_cookie(http.cookiejar.Cookie(**TEST_COOKIE))
             downloader._call_downloader('test', {**TEST_INFO, 'ext': 'mp4'})
             self.assertEqual(self._args, [
-                'ffmpeg', '-y', '-hide_banner', '-cookies', 'test=ytdlp; path=/; domain=.example.com;\r\n',
-                '-i', 'http://www.example.com/', '-c', 'copy', '-f', 'mp4', 'file:test'])
+                'ffmpeg', '-y', '-hide_banner', '-cookies',
+                'test=ytdlp; path=/; domain=.example.com;\r\n', '-i',
+                'http://www.example.com/', '-c', 'copy', '-f', 'mp4',
+                'file:test', '-progress', 'pipe:1'])
 
             # Test with non-url input (ffmpeg reads from stdin '-' for websockets)
             downloader._call_downloader('test', {'url': 'x', 'ext': 'mp4'})
             self.assertEqual(self._args, [
-                'ffmpeg', '-y', '-hide_banner', '-i', 'x', '-c', 'copy', '-f', 'mp4', 'file:test'])
+                'ffmpeg', '-y', '-hide_banner', '-i', 'x', '-c', 'copy', '-f',
+                'mp4', 'file:test', '-progress', 'pipe:1'])
 
 
 if __name__ == '__main__':

yt_dlp/downloader/common.py

@@ -16,6 +16,7 @@ from ..minicurses import (
 from ..utils import (
     IDENTITY,
     NO_DEFAULT,
+    FormatProgressInfos,
     LockingUnsupportedError,
     Namespace,
     RetryManager,
@@ -26,11 +27,9 @@ from ..utils import (
     format_bytes,
     join_nonempty,
     parse_bytes,
-    remove_start,
     sanitize_open,
     shell_quote,
     timeconvert,
-    timetuple_from_msec,
     try_call,
 )
 
@@ -120,56 +119,6 @@ class FileDownloader:
     def FD_NAME(cls):
         return re.sub(r'(?<=[a-z])(?=[A-Z])', '_', cls.__name__[:-2]).lower()
 
-    @staticmethod
-    def format_seconds(seconds):
-        if seconds is None:
-            return ' Unknown'
-        time = timetuple_from_msec(seconds * 1000)
-        if time.hours > 99:
-            return '--:--:--'
-        return '%02d:%02d:%02d' % time[:-1]
-
-    @classmethod
-    def format_eta(cls, seconds):
-        return f'{remove_start(cls.format_seconds(seconds), "00:"):>8s}'
-
-    @staticmethod
-    def calc_percent(byte_counter, data_len):
-        if data_len is None:
-            return None
-        return float(byte_counter) / float(data_len) * 100.0
-
-    @staticmethod
-    def format_percent(percent):
-        return '  N/A%' if percent is None else f'{percent:>5.1f}%'
-
-    @classmethod
-    def calc_eta(cls, start_or_rate, now_or_remaining, total=NO_DEFAULT, current=NO_DEFAULT):
-        if total is NO_DEFAULT:
-            rate, remaining = start_or_rate, now_or_remaining
-            if None in (rate, remaining):
-                return None
-            return int(float(remaining) / rate)
-
-        start, now = start_or_rate, now_or_remaining
-        if total is None:
-            return None
-        if now is None:
-            now = time.time()
-        rate = cls.calc_speed(start, now, current)
-        return rate and int((float(total) - float(current)) / rate)
-
-    @staticmethod
-    def calc_speed(start, now, bytes):
-        dif = now - start
-        if bytes == 0 or dif < 0.001:  # One millisecond
-            return None
-        return float(bytes) / dif
-
-    @staticmethod
-    def format_speed(speed):
-        return ' Unknown B/s' if speed is None else f'{format_bytes(speed):>10s}/s'
-
     @staticmethod
     def format_retries(retries):
         return 'inf' if retries == float('inf') else int(retries)
@@ -348,18 +297,16 @@ class FileDownloader:
                     return tmpl
             return default
 
-        _format_bytes = lambda k: f'{format_bytes(s.get(k)):>10s}'
-
         if s['status'] == 'finished':
             if self.params.get('noprogress'):
                 self.to_screen('[download] Download completed')
             speed = try_call(lambda: s['total_bytes'] / s['elapsed'])
             s.update({
                 'speed': speed,
-                '_speed_str': self.format_speed(speed).strip(),
-                '_total_bytes_str': _format_bytes('total_bytes'),
-                '_elapsed_str': self.format_seconds(s.get('elapsed')),
-                '_percent_str': self.format_percent(100),
+                '_speed_str': FormatProgressInfos.format_speed(speed).strip(),
+                '_total_bytes_str': format_bytes(s.get('total_bytes')),
+                '_elapsed_str': FormatProgressInfos.format_seconds(s.get('elapsed')),
+                '_percent_str': FormatProgressInfos.format_percent(100),
             })
             self._report_progress_status(s, join_nonempty(
                 '100%%',
@@ -378,16 +325,16 @@ class FileDownloader:
                 self._progress_delta_time += update_delta
 
         s.update({
-            '_eta_str': self.format_eta(s.get('eta')).strip(),
-            '_speed_str': self.format_speed(s.get('speed')),
-            '_percent_str': self.format_percent(try_call(
+            '_eta_str': FormatProgressInfos.format_eta(s.get('eta')),
+            '_speed_str': FormatProgressInfos.format_speed(s.get('speed')),
+            '_percent_str': FormatProgressInfos.format_percent(try_call(
                 lambda: 100 * s['downloaded_bytes'] / s['total_bytes'],
                 lambda: 100 * s['downloaded_bytes'] / s['total_bytes_estimate'],
                 lambda: s['downloaded_bytes'] == 0 and 0)),
-            '_total_bytes_str': _format_bytes('total_bytes'),
-            '_total_bytes_estimate_str': _format_bytes('total_bytes_estimate'),
-            '_downloaded_bytes_str': _format_bytes('downloaded_bytes'),
-            '_elapsed_str': self.format_seconds(s.get('elapsed')),
+            '_total_bytes_str': format_bytes(s.get('total_bytes')),
+            '_total_bytes_estimate_str': format_bytes(s.get('total_bytes_estimate')),
+            '_downloaded_bytes_str': format_bytes(s.get('downloaded_bytes')),
+            '_elapsed_str': FormatProgressInfos.format_seconds(s.get('elapsed')),
         })
 
         msg_template = with_fields(

yt_dlp/downloader/external.py

@@ -3,7 +3,6 @@ import json
 import os
 import re
 import subprocess
-import sys
 import tempfile
 import time
 import uuid
@@ -11,7 +10,11 @@ import uuid
 from .fragment import FragmentFD
 from ..compat import functools
 from ..networking import Request
-from ..postprocessor.ffmpeg import EXT_TO_OUT_FORMATS, FFmpegPostProcessor
+from ..postprocessor.ffmpeg import (
+    EXT_TO_OUT_FORMATS,
+    FFmpegPostProcessor,
+    FFmpegProgressTracker,
+)
 from ..utils import (
     Popen,
     RetryManager,
@@ -621,26 +624,23 @@ class FFmpegFD(ExternalFD):
 
         args = [encodeArgument(opt) for opt in args]
         args.append(encodeFilename(ffpp._ffmpeg_filename_argument(tmpfilename), True))
+        args += ['-progress', 'pipe:1']
         self._debug_cmd(args)
 
         piped = any(fmt['url'] in ('-', 'pipe:') for fmt in selected_formats)
-        with Popen(args, stdin=subprocess.PIPE, env=env) as proc:
-            if piped:
-                self.on_process_started(proc, proc.stdin)
-            try:
-                retval = proc.wait()
-            except BaseException as e:
-                # subprocces.run would send the SIGKILL signal to ffmpeg and the
-                # mp4 file couldn't be played, but if we ask ffmpeg to quit it
-                # produces a file that is playable (this is mostly useful for live
-                # streams). Note that Windows is not affected and produces playable
-                # files (see https://github.com/ytdl-org/youtube-dl/issues/8300).
-                if isinstance(e, KeyboardInterrupt) and sys.platform != 'win32' and not piped:
-                    proc.communicate_or_kill(b'q')
-                else:
-                    proc.kill(timeout=None)
-                raise
-            return retval
+        self._debug_cmd(args)
+        ffmpeg_progress_tracker = FFmpegProgressTracker(info_dict, args, self._ffmpeg_hook)
+        proc = ffmpeg_progress_tracker.ffmpeg_proc
+        if piped:
+            self.on_process_started(proc, proc.stdin)
+        _, _, return_code = ffmpeg_progress_tracker.run_ffmpeg_subprocess()
+        return return_code
+
+    def _ffmpeg_hook(self, status, info_dict):
+        status['downloaded_bytes'] = status.get('outputted', 0)
+        if status.get('status') == 'ffmpeg_running':
+            status['status'] = 'downloading'
+        self._hook_progress(status, info_dict)
 
 
 class AVconvFD(FFmpegFD):

yt_dlp/downloader/http.py

@@ -11,6 +11,7 @@ from ..networking.exceptions import (
 )
 from ..utils import (
     ContentTooShortError,
+    FormatProgressInfos,
     RetryManager,
     ThrottledDownload,
     XAttrMetadataError,
@@ -298,11 +299,11 @@ class HttpFD(FileDownloader):
                 before = after
 
                 # Progress message
-                speed = self.calc_speed(start, now, byte_counter - ctx.resume_len)
+                speed = FormatProgressInfos.calc_speed(start, now, byte_counter - ctx.resume_len)
                 if ctx.data_len is None:
                     eta = None
                 else:
-                    eta = self.calc_eta(start, time.time(), ctx.data_len - ctx.resume_len, byte_counter - ctx.resume_len)
+                    eta = FormatProgressInfos.calc_eta(start, time.time(), ctx.data_len - ctx.resume_len, byte_counter - ctx.resume_len)
 
                 self._hook_progress({
                     'status': 'downloading',

yt_dlp/downloader/rtmp.py

@@ -5,6 +5,7 @@ import time
 
 from .common import FileDownloader
 from ..utils import (
+    FormatProgressInfos,
     Popen,
     check_executable,
     encodeArgument,
@@ -50,8 +51,8 @@ class RtmpFD(FileDownloader):
                             resume_percent = percent
                             resume_downloaded_data_len = downloaded_data_len
                         time_now = time.time()
-                        eta = self.calc_eta(start, time_now, 100 - resume_percent, percent - resume_percent)
-                        speed = self.calc_speed(start, time_now, downloaded_data_len - resume_downloaded_data_len)
+                        eta = FormatProgressInfos.calc_eta(start, time_now, 100 - resume_percent, percent - resume_percent)
+                        speed = FormatProgressInfos.calc_speed(start, time_now, downloaded_data_len - resume_downloaded_data_len)
                         data_len = None
                         if percent > 0:
                             data_len = int(downloaded_data_len * 100 / percent)

yt_dlp/postprocessor/common.py

@@ -1,15 +1,27 @@
 import functools
 import json
 import os
+import sys
 
+from ..minicurses import (
+    BreaklineStatusPrinter,
+    MultilineLogger,
+    MultilinePrinter,
+    QuietMultilinePrinter,
+)
 from ..networking import Request
 from ..networking.exceptions import HTTPError, network_exceptions
 from ..utils import (
+    FormatProgressInfos,
+    Namespace,
     PostProcessingError,
     RetryManager,
     _configuration_args,
     deprecation_warning,
     encodeFilename,
+    format_bytes,
+    join_nonempty,
+    try_call,
 )
 
 
@@ -56,7 +68,9 @@ class PostProcessor(metaclass=PostProcessorMetaClass):
         self._progress_hooks = []
         self.add_progress_hook(self.report_progress)
         self.set_downloader(downloader)
+        self._out_files = self.set_out_files()
         self.PP_NAME = self.pp_key()
+        self._prepare_multiline_status()
 
     @classmethod
     def pp_key(cls):
@@ -102,6 +116,11 @@ class PostProcessor(metaclass=PostProcessorMetaClass):
             return self._downloader.params.get(name, default, *args, **kwargs)
         return default
 
+    def set_out_files(self):
+        if not self._downloader:
+            return None
+        return getattr(self._downloader, '_out_files', None) or self._downloader.ydl._out_files
+
     def set_downloader(self, downloader):
         """Sets the downloader for this PP."""
         self._downloader = downloader
@@ -173,25 +192,116 @@ class PostProcessor(metaclass=PostProcessorMetaClass):
         # See YoutubeDl.py (search for postprocessor_hooks) for a description of this interface
         self._progress_hooks.append(ph)
 
-    def report_progress(self, s):
-        s['_default_template'] = '%(postprocessor)s %(status)s' % s
-        if not self._downloader:
-            return
+    def report_destination(self, filename):
+        """Report destination filename."""
+        self.to_screen('[processing] Destination: ' + filename)
+
+    def _prepare_multiline_status(self, lines=1):
+        if self._downloader:
+            if self._downloader.params.get('noprogress'):
+                self._multiline = QuietMultilinePrinter()
+            elif self._downloader.params.get('logger'):
+                self._multiline = MultilineLogger(self._downloader.params['logger'], lines)
+            elif self._downloader.params.get('progress_with_newline'):
+                self._multiline = BreaklineStatusPrinter(self._downloader._out_files.out, lines)
+            elif hasattr(self._downloader, "_out_files"):
+                self._multiline = MultilinePrinter(self._downloader._out_files.out, lines, not self._downloader.params.get('quiet'))
+            else:
+                self._multiline = MultilinePrinter(sys.stdout, lines, not self._downloader.params.get('quiet'))
+            self._multiline.allow_colors = self._multiline._HAVE_FULLCAP and not self._downloader.params.get('no_color')
+        else:
+            self._multiline = MultilinePrinter(sys.stdout, lines, True)
+            self._multiline.allow_colors = self._multiline._HAVE_FULLCAP
+
+    def _finish_multiline_status(self):
+        self._multiline.end()
+
+    ProgressStyles = Namespace(
+        processed_bytes='light blue',
+        percent='light blue',
+        eta='yellow',
+        speed='green',
+        elapsed='bold white',
+        total_bytes='',
+        total_bytes_estimate='',
+    )
+
+    def _report_progress_status(self, s, default_template):
+        for name, style in self.ProgressStyles.items_:
+            name = f'_{name}_str'
+            if name not in s:
+                continue
+            s[name] = self._format_progress(s[name], style)
+        s['_default_template'] = default_template % s
 
         progress_dict = s.copy()
         progress_dict.pop('info_dict')
         progress_dict = {'info': s['info_dict'], 'progress': progress_dict}
 
-        progress_template = self.get_param('progress_template', {})
-        tmpl = progress_template.get('postprocess')
-        if tmpl:
-            self._downloader.to_screen(
-                self._downloader.evaluate_outtmpl(tmpl, progress_dict), quiet=False)
-
+        progress_template = self._downloader.params.get('progress_template', {})
+        self._multiline.print_at_line(self._downloader.evaluate_outtmpl(
+            progress_template.get('process') or '[processing] %(progress._default_template)s',
+            progress_dict), s.get('progress_idx') or 0)
         self._downloader.to_console_title(self._downloader.evaluate_outtmpl(
-            progress_template.get('postprocess-title') or 'yt-dlp %(progress._default_template)s',
+            progress_template.get('download-title') or 'yt-dlp %(progress._default_template)s',
             progress_dict))
 
+    def _format_progress(self, *args, **kwargs):
+        return self._downloader._format_text(
+            self._multiline.stream, self._multiline.allow_colors, *args, **kwargs)
+
+    def report_progress(self, s):
+        def with_fields(*tups, default=''):
+            for *fields, tmpl in tups:
+                if all(s.get(f) is not None for f in fields):
+                    return tmpl
+            return default
+
+        if not self._downloader:
+            return
+
+        if s['status'] == 'finished':
+            if self._downloader.params.get('noprogress'):
+                self.to_screen('[processing] Download completed')
+            speed = try_call(lambda: s['total_bytes'] / s['elapsed'])
+            s.update({
+                'speed': speed,
+                '_speed_str': FormatProgressInfos.format_speed(speed).strip(),
+                '_total_bytes_str': format_bytes(s.get('total_bytes')),
+                '_elapsed_str': FormatProgressInfos.format_seconds(s.get('elapsed')),
+                '_percent_str': FormatProgressInfos.format_percent(100),
+            })
+            self._report_progress_status(s, join_nonempty(
+                '100%%',
+                with_fields(('total_bytes', 'of %(_total_bytes_str)s')),
+                with_fields(('elapsed', 'in %(_elapsed_str)s')),
+                with_fields(('speed', 'at %(_speed_str)s')),
+                delim=' '))
+
+        if s['status'] != 'processing':
+            return
+
+        s.update({
+            '_eta_str': FormatProgressInfos.format_eta(s.get('eta')),
+            '_speed_str': FormatProgressInfos.format_speed(s.get('speed')),
+            '_percent_str': FormatProgressInfos.format_percent(try_call(
+                lambda: 100 * s['processed_bytes'] / s['total_bytes'],
+                lambda: 100 * s['processed_bytes'] / s['total_bytes_estimate'],
+                lambda: s['processed_bytes'] == 0 and 0)),
+            '_total_bytes_str': format_bytes(s.get('total_bytes')),
+            '_total_bytes_estimate_str': format_bytes(s.get('total_bytes_estimate')),
+            '_processed_bytes_str': format_bytes(s.get('processed_bytes')),
+            '_elapsed_str': FormatProgressInfos.format_seconds(s.get('elapsed')),
+        })
+
+        msg_template = with_fields(
+            ('total_bytes', '%(_percent_str)s of %(_total_bytes_str)s at %(_speed_str)s ETA %(_eta_str)s'),
+            ('processed_bytes', 'elapsed', '%(_processed_bytes_str)s at %(_speed_str)s (%(_elapsed_str)s)'),
+            ('processed_bytes', '%(_processed_bytes_str)s at %(_speed_str)s'),
+            default='%(_percent_str)s at %(_speed_str)s ETA %(_eta_str)s')
+
+        self._report_progress_status(s, msg_template)
+
     def _retry_download(self, err, count, retries):
         # While this is not an extractor, it behaves similar to one and
         # so obey extractor_retries and "--retry-sleep extractor"

yt_dlp/postprocessor/ffmpeg.py

@@ -5,7 +5,10 @@ import json
 import os
 import re
 import subprocess
+import sys
 import time
+from queue import Queue
+from threading import Thread
 
 from .common import PostProcessor
 from ..compat import functools, imghdr
@@ -23,6 +26,7 @@ from ..utils import (
     encodeFilename,
     filter_dict,
     float_or_none,
+    int_or_none,
     is_outdated_version,
     orderedSet,
     prepend_extension,
@@ -326,11 +330,9 @@ class FFmpegPostProcessor(PostProcessor):
         return abs(d1 - d2) > tolerance
 
     def run_ffmpeg_multiple_files(self, input_paths, out_path, opts, **kwargs):
-        return self.real_run_ffmpeg(
-            [(path, []) for path in input_paths],
-            [(out_path, opts)], **kwargs)
+        return self.real_run_ffmpeg([(path, []) for path in input_paths], [(out_path, opts)], **kwargs)
 
-    def real_run_ffmpeg(self, input_path_opts, output_path_opts, *, expected_retcodes=(0,)):
+    def real_run_ffmpeg(self, input_path_opts, output_path_opts, *, expected_retcodes=(0,), info_dict=None):
         self.check_version()
 
         oldest_mtime = min(
@@ -350,19 +352,20 @@ class FFmpegPostProcessor(PostProcessor):
             args += self._configuration_args(self.basename, keys)
             if name == 'i':
                 args.append('-i')
-            return (
-                [encodeArgument(arg) for arg in args]
-                + [encodeFilename(self._ffmpeg_filename_argument(file), True)])
+            return [encodeArgument(arg) for arg in args] + [encodeFilename(self._ffmpeg_filename_argument(file), True)]
 
         for arg_type, path_opts in (('i', input_path_opts), ('o', output_path_opts)):
             cmd += itertools.chain.from_iterable(
                 make_args(path, list(opts), arg_type, i + 1)
                 for i, (path, opts) in enumerate(path_opts) if path)
 
+        cmd += ['-progress', 'pipe:1']
         self.write_debug('ffmpeg command line: %s' % shell_quote(cmd))
-        _, stderr, returncode = Popen.run(
-            cmd, text=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
-        if returncode not in variadic(expected_retcodes):
+
+        ffmpeg_progress_tracker = FFmpegProgressTracker(info_dict, cmd, self._ffmpeg_hook, self._downloader)
+        _, stderr, return_code = ffmpeg_progress_tracker.run_ffmpeg_subprocess()
+        if return_code not in variadic(expected_retcodes):
+            stderr = stderr.strip()
             self.write_debug(stderr)
             raise FFmpegPostProcessorError(stderr.strip().splitlines()[-1])
         for out_path, _ in output_path_opts:
@@ -370,7 +373,7 @@ class FFmpegPostProcessor(PostProcessor):
                 self.try_utime(out_path, oldest_mtime, oldest_mtime)
         return stderr
 
-    def run_ffmpeg(self, path, out_path, opts, **kwargs):
+    def run_ffmpeg(self, path, out_path, opts, informations=None, **kwargs):
         return self.run_ffmpeg_multiple_files([path], out_path, opts, **kwargs)
 
     @staticmethod
@@ -435,6 +438,12 @@ class FFmpegPostProcessor(PostProcessor):
                 if directive in opts:
                     yield f'{directive} {opts[directive]}\n'
 
+    def _ffmpeg_hook(self, status, info_dict):
+        status['processed_bytes'] = status.get('outputted', 0)
+        if status.get('status') == 'ffmpeg_running':
+            status['status'] = 'processing'
+        self._hook_progress(status, info_dict)
+
 
 class FFmpegExtractAudioPP(FFmpegPostProcessor):
     COMMON_AUDIO_EXTS = MEDIA_EXTENSIONS.common_audio + ('wma', )
@@ -469,14 +478,14 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
             return ['-vbr', f'{int(q)}']
         return ['-q:a', f'{q}']
 
-    def run_ffmpeg(self, path, out_path, codec, more_opts):
+    def run_ffmpeg(self, path, out_path, codec, more_opts, informations=None):
         if codec is None:
             acodec_opts = []
         else:
             acodec_opts = ['-acodec', codec]
         opts = ['-vn'] + acodec_opts + more_opts
         try:
-            FFmpegPostProcessor.run_ffmpeg(self, path, out_path, opts)
+            FFmpegPostProcessor.run_ffmpeg(self, path, out_path, opts, informations)
         except FFmpegPostProcessorError as err:
             raise PostProcessingError(f'audio conversion failed: {err.msg}')
 
@@ -527,7 +536,7 @@ class FFmpegExtractAudioPP(FFmpegPostProcessor):
             return [], information
 
         self.to_screen(f'Destination: {new_path}')
-        self.run_ffmpeg(path, temp_path, acodec, more_opts)
+        self.run_ffmpeg(path, temp_path, acodec, more_opts, information)
 
         os.replace(path, orig_path)
         os.replace(temp_path, new_path)
@@ -570,7 +579,7 @@ class FFmpegVideoConvertorPP(FFmpegPostProcessor):
 
         outpath = replace_extension(filename, target_ext, source_ext)
         self.to_screen(f'{self._ACTION.title()} video from {source_ext} to {target_ext}; Destination: {outpath}')
-        self.run_ffmpeg(filename, outpath, self._options(target_ext))
+        self.run_ffmpeg(filename, outpath, self._options(target_ext), info)
 
         info['filepath'] = outpath
         info['format'] = info['ext'] = target_ext
@@ -836,7 +845,7 @@ class FFmpegMergerPP(FFmpegPostProcessor):
             if fmt.get('vcodec') != 'none':
                 args.extend(['-map', '%u:v:0' % (i)])
         self.to_screen('Merging formats into "%s"' % filename)
-        self.run_ffmpeg_multiple_files(info['__files_to_merge'], temp_filename, args)
+        self.run_ffmpeg_multiple_files(info['__files_to_merge'], temp_filename, args, info_dict=info)
         os.rename(encodeFilename(temp_filename), encodeFilename(filename))
         return info['__files_to_merge'], info
 
@@ -1007,7 +1016,7 @@ class FFmpegSubtitlesConvertorPP(FFmpegPostProcessor):
                 else:
                     sub_filenames.append(srt_file)
 
-            self.run_ffmpeg(old_file, new_file, ['-f', new_format])
+            self.run_ffmpeg(old_file, new_file, ['-f', new_format], info)
 
             with open(new_file, encoding='utf-8') as f:
                 subs[lang] = {
@@ -1190,3 +1199,237 @@ class FFmpegConcatPP(FFmpegPostProcessor):
             'ext': ie_copy['ext'],
         }]
         return files_to_delete, info
+
+
+class FFmpegProgressTracker:
+    def __init__(self, info_dict, ffmpeg_args, hook_progress, ydl=None):
+        self.ydl = ydl
+        self._info_dict = info_dict
+        self._ffmpeg_args = ffmpeg_args
+        self._hook_progress = hook_progress
+        self._stdout_queue, self._stderr_queue = Queue(), Queue()
+        self._streams, self._stderr_buffer, self._stdout_buffer = ['', ''], '', ''
+        self._progress_pattern = re.compile(r'''(?x)
+            (?:
+                frame=\s(?P<frame>\S+)\n
+                fps=\s(?P<fps>\S+)\n
+                stream\d+_\d+_q=\s(?P<stream_d_d_q>\S+)\n
+            )?
+            bitrate=\s(?P<bitrate>\S+)\n
+            total_size=\s(?P<total_size>\S+)\n
+            out_time_us=\s(?P<out_time_us>\S+)\n
+            out_time_ms=\s(?P<out_time_ms>\S+)\n
+            out_time=\s(?P<out_time>\S+)\n
+            dup_frames=\s(?P<dup_frames>\S+)\n
+            drop_frames=\s(?P<drop_frames>\S+)\n
+            speed=\s(?P<speed>\S+)\n
+            progress=\s(?P<progress>\S+)
+        ''')
+
+        if self.ydl:
+            self.ydl.write_debug(f'ffmpeg command line: {shell_quote(self._ffmpeg_args)}')
+        self.ffmpeg_proc = Popen(self._ffmpeg_args, universal_newlines=True,
+                                 encoding='utf8', stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        self._start_time = time.time()
+
+    def trigger_progress_hook(self, dct):
+        self._status.update(dct)
+        self._hook_progress(self._status, self._info_dict)
+
+    def run_ffmpeg_subprocess(self):
+        if self._info_dict and self.ydl:
+            return self._track_ffmpeg_progress()
+        return self._run_ffmpeg_without_progress_tracking()
+
+    def _run_ffmpeg_without_progress_tracking(self):
+        """Simply run ffmpeg and only care about the last stderr, stdout and the retcode"""
+        stdout, stderr = self.ffmpeg_proc.communicate_or_kill()
+        retcode = self.ffmpeg_proc.returncode
+        return stdout, stderr, retcode
+
+    def _track_ffmpeg_progress(self):
+        """ Track ffmpeg progress in a non blocking way using queues"""
+        self._start_time = time.time()
+        # args needed to track ffmpeg progress from stdout
+        self._duration_to_track, self._total_duration = self._compute_duration_to_track()
+        self._total_filesize = self._compute_total_filesize(self._duration_to_track, self._total_duration)
+        self._status = {
+            'filename': self._ffmpeg_args[-3].split(":")[-1],
+            'status': 'ffmpeg_running',
+            'total_bytes': self._total_filesize,
+            'elapsed': 0,
+            'outputted': 0
+        }
+
+        out_listener = Thread(
+            target=self._enqueue_lines,
+            args=(self.ffmpeg_proc.stdout, self._stdout_queue),
+            daemon=True,
+        )
+        err_listener = Thread(
+            target=self._enqueue_lines,
+            args=(self.ffmpeg_proc.stderr, self._stderr_queue),
+            daemon=True,
+        )
+        out_listener.start()
+        err_listener.start()
+
+        retcode = self._wait_for_ffmpeg()
+
+        self._status.update({
+            'status': 'finished',
+            'outputted': self._total_filesize
+        })
+        time.sleep(.5)  # Needed if ffmpeg didn't release the file in time for yt-dlp to change its name
+        return self._streams[0], self._streams[1], retcode
+
+    @staticmethod
+    def _enqueue_lines(out, queue):
+        for line in iter(out.readline, ''):
+            queue.put(line.rstrip())
+        out.close()
+
+    def _save_stream(self, lines, to_stderr=False):
+        if not lines:
+            return
+        self._streams[to_stderr] += lines
+
+        self.ydl.to_screen('\r', skip_eol=True)
+        for msg in lines.splitlines():
+            if msg.strip():
+                self.ydl.write_debug(f'ffmpeg: {msg}')
+
+    def _handle_lines(self):
+        if not self._stdout_queue.empty():
+            stdout_line = self._stdout_queue.get_nowait()
+            self._stdout_buffer += stdout_line + '\n'
+            self._parse_ffmpeg_output()
+
+        if not self._stderr_queue.empty():
+            stderr_line = self._stderr_queue.get_nowait()
+            self._stderr_buffer += stderr_line
+
+    def _wait_for_ffmpeg(self):
+        retcode = self.ffmpeg_proc.poll()
+        while retcode is None:
+            time.sleep(.01)
+            self._handle_lines()
+            self._status.update({
+                'elapsed': time.time() - self._start_time
+            })
+            self._hook_progress(self._status, self._info_dict)
+            retcode = self.ffmpeg_proc.poll()
+        return retcode
+
+    def _parse_ffmpeg_output(self):
+        ffmpeg_prog_infos = re.match(self._progress_pattern, self._stdout_buffer)
+        if not ffmpeg_prog_infos:
+            return
+        eta_seconds = self._compute_eta(ffmpeg_prog_infos, self._duration_to_track)
+        bitrate_int = self._compute_bitrate(ffmpeg_prog_infos.group('bitrate'))
+        # Not using ffmpeg 'total_size' value as it's imprecise and gives progress percentage over 100
+        out_time_second = int_or_none(ffmpeg_prog_infos.group('out_time_us')) // 1_000_000
+        try:
+            outputted_bytes_int = int_or_none(out_time_second / self._duration_to_track * self._total_filesize)
+        except ZeroDivisionError:
+            outputted_bytes_int = 0
+        self._status.update({
+            'outputted': outputted_bytes_int,
+            'speed': bitrate_int,
+            'eta': eta_seconds,
+        })
+        self._hook_progress(self._status, self._info_dict)
+        self._stderr_buffer = re.sub(r'=\s+', '=', self._stderr_buffer)
+        print(self._stdout_buffer, file=sys.stdout, end='')
+        print(self._stderr_buffer, file=sys.stderr)
+        self._stdout_buffer = ''
+        self._stderr_buffer = ''
+
+    def _compute_total_filesize(self, duration_to_track, total_duration):
+        if not total_duration:
+            return 0
+        filesize = self._info_dict.get('filesize')
+        if not filesize:
+            filesize = self._info_dict.get('filesize_approx', 0)
+        total_filesize = filesize * duration_to_track // total_duration
+        return total_filesize
+
+    def _compute_duration_to_track(self):
+        duration = self._info_dict.get('duration')
+        if not duration:
+            return 0, 0
+
+        start_time, end_time = 0, duration
+        for i, arg in enumerate(self._ffmpeg_args[:-1]):
+            next_arg_is_a_timestamp = re.match(r'(?P<at>(-ss|-sseof|-to))', arg)
+            this_arg_is_a_timestamp = re.match(r'(?P<at>(-ss|-sseof|-to))=(?P<timestamp>\d+)', arg)
+            if not (next_arg_is_a_timestamp or this_arg_is_a_timestamp):
+                continue
+            elif next_arg_is_a_timestamp:
+                timestamp_seconds = self.ffmpeg_time_string_to_seconds(self._ffmpeg_args[i + 1])
+            else:
+                timestamp_seconds = self.ffmpeg_time_string_to_seconds(this_arg_is_a_timestamp.group('timestamp'))
+            if next_arg_is_a_timestamp.group('at') == '-ss':
+                start_time = timestamp_seconds
+            elif next_arg_is_a_timestamp.group('at') == '-sseof':
+                start_time = end_time - timestamp_seconds
+            elif next_arg_is_a_timestamp.group('at') == '-to':
+                end_time = timestamp_seconds
+
+        duration_to_track = end_time - start_time
+        if duration_to_track >= 0:
+            return duration_to_track, duration
+        return 0, duration
+
+    @staticmethod
+    def _compute_eta(ffmpeg_prog_infos, duration_to_track):
+        try:
+            speed = float_or_none(ffmpeg_prog_infos.group('speed')[:-1])
+            out_time_second = int_or_none(ffmpeg_prog_infos.group('out_time_us')) // 1_000_000
+            eta_seconds = (duration_to_track - out_time_second) // speed
+        except (TypeError, ZeroDivisionError):
+            eta_seconds = 0
+        return eta_seconds
+
+    @staticmethod
+    def ffmpeg_time_string_to_seconds(time_string):
+        ffmpeg_time_seconds = 0
+        hms_parsed = re.match(r"((?P<Hour>\d+):)?((?P<Minute>\d+):)?(?P<Second>\d+)(\.(?P<float>\d+))?", time_string)
+        smu_parse = re.match(r"(?P<Time>\d+)(?P<Unit>[mu]?s)", time_string)
+        if hms_parsed:
+            if hms_parsed.group('Hour'):
+                ffmpeg_time_seconds += 3600 * int_or_none(hms_parsed.group('Hour'))
+            if hms_parsed.group('Minute'):
+                ffmpeg_time_seconds += 60 * int_or_none(hms_parsed.group('Minute'))
+            ffmpeg_time_seconds += int_or_none(hms_parsed.group('Second'))
+            if hms_parsed.group('float'):
+                float_part = hms_parsed.group('float')
+                ffmpeg_time_seconds += int_or_none(float_part) / (10 ** len(float_part))
+        elif smu_parse:
+            ffmpeg_time_seconds = int_or_none(smu_parse.group('Time'))
+            prefix_and_unit = smu_parse.group('Unit')
+            if prefix_and_unit == 'ms':
+                ffmpeg_time_seconds /= 1_000
+            elif prefix_and_unit == 'us':
+                ffmpeg_time_seconds /= 1_000_000
+        return ffmpeg_time_seconds
+
+    @staticmethod
+    def _compute_bitrate(bitrate):
+        bitrate_str = re.match(r"(?P<Integer>\d+)(\.(?P<float>\d+))?(?P<Prefix>[gmk])?bits/s", bitrate)
+        try:
+            no_prefix_bitrate = int_or_none(bitrate_str.group('Integer'))
+            if bitrate_str.group('float'):
+                float_part = bitrate_str.group('float')
+                no_prefix_bitrate += int_or_none(float_part) / (10 ** len(float_part))
+            if bitrate_str.group('Prefix'):
+                unit_prefix = bitrate_str.group('Prefix')
+                if unit_prefix == 'g':
+                    no_prefix_bitrate *= 1_000_000_000
+                elif unit_prefix == 'm':
+                    no_prefix_bitrate *= 1_000_000
+                elif unit_prefix == 'k':
+                    no_prefix_bitrate *= 1_000
+        except (TypeError, AttributeError):
+            return 0
+        return no_prefix_bitrate

yt_dlp/utils/_utils.py

@@ -5471,3 +5471,51 @@ class _YDLLogger:
     def stderr(self, message):
         if self._ydl:
             self._ydl.to_stderr(message)
+
+
+class FormatProgressInfos:
+    @staticmethod
+    def format_seconds(seconds):
+        if seconds is None:
+            return ' Unknown'
+        time = timetuple_from_msec(seconds * 1000)
+        if time.hours > 99:
+            return '--:--:--'
+        if not time.hours:
+            return '%02d:%02d' % time[1:-1]
+        return '%02d:%02d:%02d' % time[:-1]
+
+    format_eta = format_seconds
+
+    @staticmethod
+    def calc_percent(byte_counter, data_len):
+        if data_len is None:
+            return None
+        return float(byte_counter) / float(data_len) * 100.0
+
+    @staticmethod
+    def format_percent(percent):
+        return '  N/A%' if percent is None else f'{percent:>5.1f}%'
+
+    @staticmethod
+    def calc_eta(start, now, total, current):
+        if total is None:
+            return None
+        if now is None:
+            now = time.time()
+        dif = now - start
+        if current == 0 or dif < 0.001:  # One millisecond
+            return None
+        rate = float(current) / dif
+        return int((float(total) - float(current)) / rate)
+
+    @staticmethod
+    def calc_speed(start, now, bytes):
+        dif = now - start
+        if bytes == 0 or dif < 0.001:  # One millisecond
+            return None
+        return float(bytes) / dif
+
+    @staticmethod
+    def format_speed(speed):
+        return ' Unknown B/s' if speed is None else f'{format_bytes(speed):>10s}/s'