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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/native/jni/gstreamer-peer/gst_native_data_line.c | |
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Diffstat (limited to 'libjava/classpath/native/jni/gstreamer-peer/gst_native_data_line.c')
-rw-r--r-- | libjava/classpath/native/jni/gstreamer-peer/gst_native_data_line.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/libjava/classpath/native/jni/gstreamer-peer/gst_native_data_line.c b/libjava/classpath/native/jni/gstreamer-peer/gst_native_data_line.c new file mode 100644 index 000000000..84e76a1dc --- /dev/null +++ b/libjava/classpath/native/jni/gstreamer-peer/gst_native_data_line.c @@ -0,0 +1,251 @@ +/*gst_native_data_line.c - Implements the native methods of GstNativeDataLine + Copyright (C) 2007 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +#include <jni.h> + +#include <gst/gst.h> + +#include "jcl.h" +#include "gnu_javax_sound_sampled_gstreamer_lines_GstNativeDataLine.h" + +#include "gst_peer.h" +#include "gst_classpath_src.h" +#include "gst_native_pipeline.h" + +static jfieldID pointerDataFID = NULL; + +/* ************************************************************************** */ + +static GstElement *setup_pipeline (GstNativePipeline *jpipeline, int fd); +static void +gst_newpad (GstElement *decodebin, GstPad *pad, gboolean last, gpointer data); + +/* ************************************************************************** */ + +JNIEXPORT void JNICALL +Java_gnu_javax_sound_sampled_gstreamer_lines_GstNativeDataLine_init_1id_1cache + (JNIEnv *env __attribute__ ((unused)), jclass clazz __attribute__ ((unused))) +{ + jclass pointerClass = NULL; + +#if SIZEOF_VOID_P == 8 + pointerClass = JCL_FindClass (env, "gnu/classpath/Pointer64"); + if (pointerClass != NULL) + { + pointerDataFID = (*env)->GetFieldID (env, pointerClass, "data", "J"); + } +#else +# if SIZEOF_VOID_P == 4 + pointerClass = JCL_FindClass (env, "gnu/classpath/Pointer32"); + if (pointerClass != NULL) + { + pointerDataFID = (*env)->GetFieldID(env, pointerClass, "data", "I"); + } +# else +# error "Pointer size is not supported." +# endif /* SIZEOF_VOID_P == 4 */ +#endif /* SIZEOF_VOID_P == 8 */ +} + +JNIEXPORT jboolean JNICALL +Java_gnu_javax_sound_sampled_gstreamer_lines_GstNativeDataLine_setup_1sink_1pipeline + (JNIEnv *env, jclass clazz __attribute__ ((unused)), + jobject pointer) +{ + GstNativePipeline *jpipeline = NULL; + + GstElement *pipeline = NULL; + GstElement *sink = NULL; + GstElement *audioconv= NULL; + GstElement *resample = NULL; + GstElement *audio = NULL; + GstElement *decodebin = NULL; + + GstPad *audiopad = NULL; + + gst_init (NULL, NULL); + + /* get the pipeline from the pointer, then create it if needed */ + jpipeline = (GstNativePipeline *) get_object_from_pointer (env, pointer, + pointerDataFID); + if (jpipeline == NULL) + return JNI_FALSE; + + pipeline = setup_pipeline (jpipeline, + gst_native_pipeline_get_pipeline_fd (jpipeline)); + if (pipeline == NULL) + return JNI_FALSE; + + /* add the audio sink to the pipeline */ + /* TODO: hardcoded values */ + sink = gst_element_factory_make ("autoaudiosink", "alsa-output"); + if (sink == NULL) + { + gst_object_unref(GST_OBJECT(pipeline)); + gst_object_unref(GST_OBJECT(sink)); + + g_warning ("unable to create sink\n"); + return JNI_FALSE; + } + + audioconv = gst_element_factory_make ("audioconvert", "aconv"); + if (audioconv == NULL) + { + gst_object_unref(GST_OBJECT(pipeline)); + gst_object_unref(GST_OBJECT(sink)); + gst_object_unref(GST_OBJECT(decodebin)); + + g_warning ("unable to create audioconv\n"); + return JNI_FALSE; + } + + audio = gst_bin_new ("audiobin"); + if (audio == NULL) + { + gst_object_unref(GST_OBJECT(pipeline)); + gst_object_unref(GST_OBJECT(sink)); + gst_object_unref(GST_OBJECT(decodebin)); + + g_warning ("unable to create audioconv\n"); + return JNI_FALSE; + } + + resample = gst_element_factory_make ("audioresample", "audioresample"); + if (audioconv == NULL) + { + gst_object_unref(GST_OBJECT(pipeline)); + gst_object_unref(GST_OBJECT(sink)); + gst_object_unref(GST_OBJECT(decodebin)); + gst_object_unref(GST_OBJECT(audio)); + + g_warning ("unable to create resample\n"); + return JNI_FALSE; + } + + audiopad = gst_element_get_pad (audioconv, "sink"); + gst_bin_add_many (GST_BIN (audio), audioconv, resample, sink, NULL); + gst_element_link (audioconv, sink); + + gst_element_add_pad (audio, gst_ghost_pad_new ("sink", audiopad)); + + gst_object_unref (audiopad); + gst_bin_add (GST_BIN (pipeline), audio); + + decodebin = gst_bin_get_by_name (GST_BIN (pipeline), "decodebin"); + g_signal_connect (decodebin, "new-decoded-pad", G_CALLBACK (gst_newpad), + audio); + + gst_native_pipeline_set_pipeline (jpipeline, pipeline); + + return JNI_TRUE; +} + +/* ************************************************************************** */ + +static GstElement *setup_pipeline (GstNativePipeline *jpipeline, int fd) +{ + GstElement *decodebin = NULL; + GstElement *source = NULL; + + GstElement *pipeline = NULL; + + if (fd < 0) + return NULL; + + pipeline = gst_pipeline_new ("java sound pipeline"); + if (pipeline == NULL) + return NULL; + + decodebin = gst_element_factory_make ("decodebin", "decodebin"); + if (decodebin == NULL) + { + gst_object_unref(GST_OBJECT(pipeline)); + gst_object_unref(GST_OBJECT(source)); + + g_warning ("unable to create decodebin\n"); + return NULL; + } + + source = gst_element_factory_make ("fdsrc", "source"); + if (source == NULL) + { + gst_object_unref(GST_OBJECT(pipeline)); + gst_object_unref(GST_OBJECT(source)); + gst_object_unref(GST_OBJECT(decodebin)); + + g_warning ("unable to create a source"); + return JNI_FALSE; + } + g_object_set (G_OBJECT (source), "fd", fd, NULL); + + gst_bin_add_many (GST_BIN (pipeline), source, decodebin, NULL); + gst_element_link (source, decodebin); + + return pipeline; +} + +static void +gst_newpad (GstElement *decodebin, GstPad *pad, gboolean last, gpointer data) +{ + GstCaps *caps; + GstStructure *str; + GstPad *audiopad; + + GstElement *audio = (GstElement *) data; + + /* only link once */ + audiopad = gst_element_get_pad (audio, "sink"); + if (GST_PAD_IS_LINKED (audiopad)) + { + g_object_unref (audiopad); + return; + } + + /* check media type */ + caps = gst_pad_get_caps (pad); + str = gst_caps_get_structure (caps, 0); + if (!g_strrstr (gst_structure_get_name (str), "audio")) + { + gst_caps_unref (caps); + gst_object_unref (audiopad); + return; + } + gst_caps_unref (caps); + + /* link'n'play */ + gst_pad_link (pad, audiopad); +} |