diff options
author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2015-04-03 13:15:00 +0200 |
---|---|---|
committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2015-04-03 13:15:00 +0200 |
commit | bc53b714952ceb0afd02b591403cb2bc0cb1aab9 (patch) | |
tree | 8ff57ed1a1265b2c87f37e3c8fa19876faf80990 /thumbnailer/shotwell-video-thumbnailer.vala | |
parent | d4c476947425c12b1984fedea16f8a8c42a07ba3 (diff) | |
parent | c43dfb815a4951b8248f4f0e98babe4f80204f03 (diff) |
Merge tag 'upstream/0.22.0'
Upstream version 0.22.0
Diffstat (limited to 'thumbnailer/shotwell-video-thumbnailer.vala')
-rw-r--r-- | thumbnailer/shotwell-video-thumbnailer.vala | 74 |
1 files changed, 16 insertions, 58 deletions
diff --git a/thumbnailer/shotwell-video-thumbnailer.vala b/thumbnailer/shotwell-video-thumbnailer.vala index 93db2aa..e73dc79 100644 --- a/thumbnailer/shotwell-video-thumbnailer.vala +++ b/thumbnailer/shotwell-video-thumbnailer.vala @@ -1,4 +1,4 @@ -/* Copyright 2011-2014 Yorba Foundation +/* Copyright 2011-2015 Yorba Foundation * * This is a Vala-rewrite of GStreamer snapshot example. Adapted from earlier * work from Wim Taymans. @@ -14,13 +14,11 @@ class ShotwellThumbnailer { public static int main(string[] args) { Gst.Element pipeline, sink; - int width, height; - Gst.Sample sample; string descr; Gdk.Pixbuf pixbuf; + uint8[]? pngdata; int64 duration, position; Gst.StateChangeReturn ret; - bool res; Gst.init(ref args); @@ -30,7 +28,7 @@ class ShotwellThumbnailer { } descr = "filesrc location=\"%s\" ! decodebin ! videoconvert ! videoscale ! ".printf(args[1]) + - "appsink name=sink caps=\"%s\"".printf(caps_string); + "%s ! gdkpixbufsink name=sink".printf(caps_string); try { // Create new pipeline. @@ -59,7 +57,10 @@ class ShotwellThumbnailer { } /* get the duration */ - pipeline.query_duration (Gst.Format.TIME, out duration); + if (!pipeline.query_duration (Gst.Format.TIME, out duration)) { + stderr.printf("Failed to query file for duration\n"); + return 3; + } position = 1 * Gst.SECOND; @@ -69,61 +70,18 @@ class ShotwellThumbnailer { * seek a little more */ pipeline.seek_simple (Gst.Format.TIME, Gst.SeekFlags.KEY_UNIT | Gst.SeekFlags.FLUSH, position); - /* get the preroll buffer from appsink, this block untils appsink really - * prerolls */ - GLib.Signal.emit_by_name (sink, "pull-preroll", out sample, null); + ret = pipeline.get_state(null, null, 5 * Gst.SECOND); + if (ret == Gst.StateChangeReturn.FAILURE) { + stderr.printf("Failed to play the file: couldn't get state.\n"); + return 3; + } - // if we have a buffer now, convert it to a pixbuf. It's possible that we - // don't have a buffer because we went EOS right away or had an error. - if (sample != null) { - Gst.Buffer buffer; - Gst.Caps caps; - unowned Gst.Structure s; - Gst.MapInfo mapinfo; - uint8[]? pngdata; + sink.get ("last-pixbuf", out pixbuf); - // Get the snapshot buffer format now. We set the caps on the appsink so - // that it can only be an rgb buffer. The only thing we have not specified - // on the caps is the height, which is dependent on the pixel-aspect-ratio - // of the source material. - caps = sample.get_caps(); - if (caps == null) { - stderr.printf("could not get snapshot format\n"); - return 5; - } - - s = caps.get_structure(0); - - // We need to get the final caps on the buffer to get the size. - res = s.get_int("width", out width); - res |= s.get_int("height", out height); - if (!res) { - stderr.printf("Could not get snapshot dimension\n"); - return 6; - } + // Save the pixbuf. + pixbuf.save_to_buffer(out pngdata, "png"); + stdout.write(pngdata); - buffer = sample.get_buffer(); - buffer.map(out mapinfo, Gst.MapFlags.READ); - - if (mapinfo.data == null || mapinfo.data.length == 0) { - stderr.printf("Could not get snapshot data buffer\n"); - return 7; - } - - // Create pixmap from buffer and save, gstreamer video buffers have a stride - // that is rounded up to the nearest multiple of 4. - pixbuf = new Gdk.Pixbuf.from_data(mapinfo.data, Gdk.Colorspace.RGB, false, 8, - width, height, (((width * 3)+3)&~3), null); - - // Save the pixbuf. - pixbuf.save_to_buffer(out pngdata, "png"); - stdout.write(pngdata); - buffer.unmap(mapinfo); - } else { - stderr.printf("Could not make snapshot\n"); - return 10; - } - // cleanup and exit. pipeline.set_state(Gst.State.NULL); |