From 8378a89bbd5b54d8efb064581725a765fb54740a Mon Sep 17 00:00:00 2001
From: Yves Fischer <yvesf-git@xapek.org>
Date: Thu, 31 Dec 2015 15:20:27 +0100
Subject: replace ffmpegthumbnailer with call to ffmpeg directly set resolution
 to x480 instead of x360

---
 README.md                |  1 -
 mediabrowser/__init__.py |  4 ++--
 mediabrowser/ffmpeg.py   | 19 ++++++++-----------
 3 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/README.md b/README.md
index c67a24b..071e48d 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,6 @@ The video stream is encoded as h.264 + AAC stream. Tested with
 
 * python3, flask
 * `ffmpeg` command
-* `ffmpegthumbnailer` command
 
 # Run tests
 
diff --git a/mediabrowser/__init__.py b/mediabrowser/__init__.py
index 855c3e0..6927205 100644
--- a/mediabrowser/__init__.py
+++ b/mediabrowser/__init__.py
@@ -140,8 +140,8 @@ def build(root_directory, cache):
         if client_mtime is not None and mtime <= client_mtime:
             return Response(status=304)
         else:
-            process = ffmpeg.thumbnail_png(ospath, 64)
-            r = Response(process.stdout, mimetype="image/png")
+            process = ffmpeg.thumbnail(ospath, 90, 50)
+            r = Response(process.stdout, mimetype="image/jpeg")
             r.last_modified = mtime
             return r
 
diff --git a/mediabrowser/ffmpeg.py b/mediabrowser/ffmpeg.py
index 1f7fb18..ea589d6 100644
--- a/mediabrowser/ffmpeg.py
+++ b/mediabrowser/ffmpeg.py
@@ -35,7 +35,7 @@ def stream(ospath, ss, t):
         [ospath] +
         shlex.split("-c:a aac -strict experimental -ac 2 -b:a 64k"
                     " -c:v libx264 -pix_fmt yuv420p -profile:v high -level 4.0 -preset ultrafast -trellis 0"
-                    " -crf 31 -vf scale=w=trunc(oh*a/2)*2:h=360"
+                    " -crf 31 -vf scale=w=trunc(oh*a/2)*2:h=480"
                     " -f mpegts"
                     " -output_ts_offset {output_ts_offset:.6f} -t {t:.6f} pipe:%d.ts".format(**locals())),
         stdout=PIPE, stderr=DEVNULL)
@@ -110,17 +110,14 @@ def calculate_splittimes(ospath, chunk_duration):
 
     duration = float(ffprobe_data(ospath)['format']['duration'])
     points = list(calculate_points(duration))
-    adj_points = points
-    # for point in points:
-    #     adj_points += [find_next_iframe(ospath, point, chunk_duration / 2.0)]
-    #
-    for (point, nextPoint) in zip([0.0] + adj_points, adj_points + [duration]):
+    for (point, nextPoint) in zip([0.0] + points, points + [duration]):
         yield ("{:0.6f}".format(point), "{:0.6f}".format(nextPoint - point))
 
 
-def thumbnail_png(path, size):
-    logging.debug("thumbnail %s", path)
-    process = LoggedPopen(['ffmpegthumbnailer', '-i', path,
-                           '-o', '-', '-s', str(size), '-c', 'png'],
-                          stdout=PIPE, stderr=DEVNULL)
+def thumbnail(ospath, width, height):
+    process = LoggedPopen(shlex.split("ffmpeg -noaccurate_seek -ss 25.0 -i") + [ospath] +
+                          shlex.split("-frames:v 10 -map 0:0"
+                                      " -filter:v 'scale=w=oh*a:h={}, crop=(min(iw\,{})):(min(ih\,{}))'"
+                                      " -f singlejpeg pipe:".format(height+(height/10), width, height)),
+                          stdout=PIPE)
     return process
-- 
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