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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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facb000afe
This reduces the amount of Java <-> native calls, which should reduce overhead a bit. It also paves a way to share the code between Android and a libhybris-based backend (where GNU/Linux system uses Android driver) in the future. Bug: https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1242 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4115>
104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/*
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* Copyright (C) 2023, Ratchanan Srirattanamet <peathot@hotmail.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 Lesser General Public
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* License as published by the Free Software Foundation
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* version 2.1 of the License.
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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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include <android/api-level.h>
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#include "../gstamc.h"
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#include "gstamc-jni.h"
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#define GST_CAT_DEFAULT gst_amc_debug
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#ifdef HAVE_NDKMEDIA
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#include "../ndk/gstamc-ndk.h"
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static gboolean
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should_prefer_ndk ()
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{
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int device_api_level = android_get_device_api_level ();
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const gchar *impl_env = g_getenv ("GST_AMC_PREFERED_IMPL");
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if (device_api_level < 21) {
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/* NDK media APIs are added in API level 21 (Android 5). Don't bother
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* trying. It'll fail anyway. */
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return FALSE;
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}
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if (impl_env) {
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if (g_str_equal (impl_env, "ndk"))
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return TRUE;
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else if (g_str_equal (impl_env, "jni"))
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return FALSE;
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else
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GST_WARNING ("Unknown value '%s' for GST_AMC_PREFERED_IMPL, ignored.",
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impl_env);
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}
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/* NDK's AMediaCodec_setParameters() is available since API level 26, while
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* Java's MediaCodec.setParameters() is available since API level 19. Prefers
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* JNI version for 21 <= API level < 26 to avoid feature regression.
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*/
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return (device_api_level >= 26);
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}
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#endif /* HAVE_NDKMEDIA */
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gboolean
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gst_amc_static_init (void)
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{
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if (!gst_amc_codeclist_jni_static_init ())
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return FALSE;
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if (!gst_amc_surface_texture_jni_static_init ())
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return FALSE;
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#ifdef HAVE_NDKMEDIA
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if (!should_prefer_ndk ())
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goto init_jni;
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if (!gst_amc_codec_ndk_static_init ())
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goto init_jni;
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if (!gst_amc_format_ndk_static_init ())
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goto init_jni;
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GST_INFO ("Use NDK implementation for GstAmc.");
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gst_amc_format_vtable = &gst_amc_format_ndk_vtable;
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gst_amc_codec_vtable = &gst_amc_codec_ndk_vtable;
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return TRUE;
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#endif /* HAVE_NDKMEDIA */
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init_jni:
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if (!gst_amc_codec_jni_static_init ())
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return FALSE;
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if (!gst_amc_format_jni_static_init ())
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return FALSE;
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GST_INFO ("Use JNI implementation for GstAmc.");
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gst_amc_format_vtable = &gst_amc_format_jni_vtable;
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gst_amc_codec_vtable = &gst_amc_codec_jni_vtable;
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return TRUE;
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}
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