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ccab90773f
Implement a v4l2 based vp9 decoder element based on the preexisting vp8 v4l2 decoder. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1012>
116 lines
3.6 KiB
C
116 lines
3.6 KiB
C
/* GStreamer
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* Copyright (C) 2020 Collabora Ltd.
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* Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstv4l2codecdevice.h"
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#include "gstv4l2codech264dec.h"
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#include "gstv4l2codecmpeg2dec.h"
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#include "gstv4l2codecvp8dec.h"
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#include "gstv4l2codecvp9dec.h"
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#include "gstv4l2decoder.h"
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#include "linux/v4l2-controls.h"
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#include "linux/media.h"
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#define GST_CAT_DEFAULT gstv4l2codecs_debug
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GST_DEBUG_CATEGORY (gstv4l2codecs_debug);
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static void
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register_video_decoder (GstPlugin * plugin, GstV4l2CodecDevice * device)
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{
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GstV4l2Decoder *decoder = gst_v4l2_decoder_new (device);
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gint i;
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guint32 fmt;
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if (!gst_v4l2_decoder_open (decoder)) {
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g_object_unref (decoder);
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return;
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}
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for (i = 0; gst_v4l2_decoder_enum_sink_fmt (decoder, i, &fmt); i++) {
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switch (fmt) {
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case V4L2_PIX_FMT_H264_SLICE:
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GST_INFO_OBJECT (decoder, "Registering %s as H264 Decoder",
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device->name);
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gst_v4l2_codec_h264_dec_register (plugin, decoder, device,
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GST_RANK_PRIMARY + 1);
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break;
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case V4L2_PIX_FMT_VP8_FRAME:
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GST_INFO_OBJECT (decoder, "Registering %s as VP8 Decoder",
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device->name);
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gst_v4l2_codec_vp8_dec_register (plugin, decoder,
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device, GST_RANK_PRIMARY + 1);
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break;
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case V4L2_PIX_FMT_MPEG2_SLICE:
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GST_INFO_OBJECT (decoder, "Registering %s as Mpeg2 Decoder",
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device->name);
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gst_v4l2_codec_mpeg2_dec_register (plugin, device,
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GST_RANK_PRIMARY + 1);
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break;
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case V4L2_PIX_FMT_VP9_FRAME:
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GST_INFO_OBJECT (decoder, "Registering %s as VP9 Decoder",
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device->name);
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gst_v4l2_codec_vp9_dec_register (plugin, device, GST_RANK_PRIMARY + 1);
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break;
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default:
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GST_FIXME_OBJECT (decoder, "%" GST_FOURCC_FORMAT " is not supported.",
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GST_FOURCC_ARGS (fmt));
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break;
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}
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}
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g_object_unref (decoder);
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}
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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GList *devices, *d;
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const gchar *paths[] = { "/dev", NULL };
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const gchar *names[] = { "media", NULL };
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GST_DEBUG_CATEGORY_INIT (gstv4l2codecs_debug, "v4l2codecs", 0,
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"V4L2 CODECs general debug");
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/* Add some dependency, so the dynamic features get updated upon changes in
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* /dev/media* */
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gst_plugin_add_dependency (plugin,
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NULL, paths, names, GST_PLUGIN_DEPENDENCY_FLAG_FILE_NAME_IS_PREFIX);
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devices = gst_v4l2_codec_find_devices ();
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for (d = devices; d; d = g_list_next (d)) {
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GstV4l2CodecDevice *device = d->data;
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if (device->function == MEDIA_ENT_F_PROC_VIDEO_DECODER)
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register_video_decoder (plugin, device);
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}
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gst_v4l2_codec_device_list_free (devices);
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return TRUE;
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}
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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v4l2codecs,
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"V4L2 CODEC Accelerators plugin",
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plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
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