gstreamer/sys/androidmedia/jni/gstamc-codec-jni.c
Xavier Claessens 515398a9ff amc: Move MediaCodec JNI wrapper into its own module
This will facilitate adding another implementation based on
NdkMediaCodec instead of JNI.
2019-08-20 08:53:55 -04:00

936 lines
25 KiB
C

/*
* Copyright (C) 2012,2018 Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
* Copyright (C) 2015, Sebastian Dröge <sebastian@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation
* version 2.1 of the License.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "../gstjniutils.h"
#include "../gstamc-codec.h"
#include "../gstamc-constants.h"
#include "gstamc-internal-jni.h"
struct _GstAmcCodec
{
jobject object; /* global reference */
RealBuffer *input_buffers, *output_buffers;
gsize n_input_buffers, n_output_buffers;
};
static struct
{
jclass klass;
jmethodID configure;
jmethodID create_by_codec_name;
jmethodID dequeue_input_buffer;
jmethodID dequeue_output_buffer;
jmethodID flush;
jmethodID get_input_buffers;
jmethodID get_input_buffer;
jmethodID get_output_buffers;
jmethodID get_output_buffer;
jmethodID get_output_format;
jmethodID queue_input_buffer;
jmethodID release;
jmethodID release_output_buffer;
jmethodID start;
jmethodID stop;
} media_codec;
static struct
{
jclass klass;
jmethodID constructor;
jfieldID flags;
jfieldID offset;
jfieldID presentation_time_us;
jfieldID size;
} media_codec_buffer_info;
static struct
{
jclass klass;
jmethodID get_limit, get_position;
jmethodID set_limit, set_position;
jmethodID clear;
} java_nio_buffer;
gboolean
gst_amc_codec_static_init (void)
{
gboolean ret = TRUE;
JNIEnv *env;
jclass tmp;
GError *err = NULL;
env = gst_amc_jni_get_env ();
java_nio_buffer.klass = gst_amc_jni_get_class (env, &err, "java/nio/Buffer");
if (!java_nio_buffer.klass) {
GST_ERROR ("Failed to get java.nio.Buffer class: %s", err->message);
g_clear_error (&err);
return FALSE;
}
java_nio_buffer.get_limit =
gst_amc_jni_get_method_id (env, &err, java_nio_buffer.klass, "limit",
"()I");
if (!java_nio_buffer.get_limit) {
GST_ERROR ("Failed to get java.nio.Buffer limit(): %s", err->message);
g_clear_error (&err);
return FALSE;
}
java_nio_buffer.get_position =
gst_amc_jni_get_method_id (env, &err, java_nio_buffer.klass, "position",
"()I");
if (!java_nio_buffer.get_position) {
GST_ERROR ("Failed to get java.nio.Buffer position(): %s", err->message);
g_clear_error (&err);
return FALSE;
}
java_nio_buffer.set_limit =
gst_amc_jni_get_method_id (env, &err, java_nio_buffer.klass, "limit",
"(I)Ljava/nio/Buffer;");
if (!java_nio_buffer.set_limit) {
GST_ERROR ("Failed to get java.nio.Buffer limit(): %s", err->message);
g_clear_error (&err);
return FALSE;
}
java_nio_buffer.set_position =
gst_amc_jni_get_method_id (env, &err, java_nio_buffer.klass, "position",
"(I)Ljava/nio/Buffer;");
if (!java_nio_buffer.set_position) {
GST_ERROR ("Failed to get java.nio.Buffer position(): %s", err->message);
g_clear_error (&err);
return FALSE;
}
java_nio_buffer.clear =
gst_amc_jni_get_method_id (env, &err, java_nio_buffer.klass, "clear",
"()Ljava/nio/Buffer;");
if (!java_nio_buffer.clear) {
GST_ERROR ("Failed to get java.nio.Buffer clear(): %s", err->message);
g_clear_error (&err);
return FALSE;
}
tmp = (*env)->FindClass (env, "android/media/MediaCodec$BufferInfo");
if (!tmp) {
ret = FALSE;
(*env)->ExceptionClear (env);
GST_ERROR ("Failed to get codec buffer info class");
goto done;
}
media_codec_buffer_info.klass = (*env)->NewGlobalRef (env, tmp);
if (!media_codec_buffer_info.klass) {
ret = FALSE;
GST_ERROR ("Failed to get codec buffer info class global reference");
if ((*env)->ExceptionCheck (env)) {
(*env)->ExceptionDescribe (env);
(*env)->ExceptionClear (env);
}
goto done;
}
(*env)->DeleteLocalRef (env, tmp);
tmp = NULL;
media_codec_buffer_info.constructor =
(*env)->GetMethodID (env, media_codec_buffer_info.klass, "<init>", "()V");
media_codec_buffer_info.flags =
(*env)->GetFieldID (env, media_codec_buffer_info.klass, "flags", "I");
media_codec_buffer_info.offset =
(*env)->GetFieldID (env, media_codec_buffer_info.klass, "offset", "I");
media_codec_buffer_info.presentation_time_us =
(*env)->GetFieldID (env, media_codec_buffer_info.klass,
"presentationTimeUs", "J");
media_codec_buffer_info.size =
(*env)->GetFieldID (env, media_codec_buffer_info.klass, "size", "I");
if (!media_codec_buffer_info.constructor || !media_codec_buffer_info.flags
|| !media_codec_buffer_info.offset
|| !media_codec_buffer_info.presentation_time_us
|| !media_codec_buffer_info.size) {
ret = FALSE;
GST_ERROR ("Failed to get buffer info methods and fields");
if ((*env)->ExceptionCheck (env)) {
(*env)->ExceptionDescribe (env);
(*env)->ExceptionClear (env);
}
goto done;
}
tmp = (*env)->FindClass (env, "android/media/MediaCodec");
if (!tmp) {
ret = FALSE;
GST_ERROR ("Failed to get codec class");
if ((*env)->ExceptionCheck (env)) {
(*env)->ExceptionDescribe (env);
(*env)->ExceptionClear (env);
}
goto done;
}
media_codec.klass = (*env)->NewGlobalRef (env, tmp);
if (!media_codec.klass) {
ret = FALSE;
GST_ERROR ("Failed to get codec class global reference");
if ((*env)->ExceptionCheck (env)) {
(*env)->ExceptionDescribe (env);
(*env)->ExceptionClear (env);
}
goto done;
}
(*env)->DeleteLocalRef (env, tmp);
tmp = NULL;
media_codec.create_by_codec_name =
(*env)->GetStaticMethodID (env, media_codec.klass, "createByCodecName",
"(Ljava/lang/String;)Landroid/media/MediaCodec;");
media_codec.configure =
(*env)->GetMethodID (env, media_codec.klass, "configure",
"(Landroid/media/MediaFormat;Landroid/view/Surface;Landroid/media/MediaCrypto;I)V");
media_codec.dequeue_input_buffer =
(*env)->GetMethodID (env, media_codec.klass, "dequeueInputBuffer",
"(J)I");
media_codec.dequeue_output_buffer =
(*env)->GetMethodID (env, media_codec.klass, "dequeueOutputBuffer",
"(Landroid/media/MediaCodec$BufferInfo;J)I");
media_codec.flush =
(*env)->GetMethodID (env, media_codec.klass, "flush", "()V");
media_codec.get_input_buffers =
(*env)->GetMethodID (env, media_codec.klass, "getInputBuffers",
"()[Ljava/nio/ByteBuffer;");
media_codec.get_output_buffers =
(*env)->GetMethodID (env, media_codec.klass, "getOutputBuffers",
"()[Ljava/nio/ByteBuffer;");
media_codec.get_output_format =
(*env)->GetMethodID (env, media_codec.klass, "getOutputFormat",
"()Landroid/media/MediaFormat;");
media_codec.queue_input_buffer =
(*env)->GetMethodID (env, media_codec.klass, "queueInputBuffer",
"(IIIJI)V");
media_codec.release =
(*env)->GetMethodID (env, media_codec.klass, "release", "()V");
media_codec.release_output_buffer =
(*env)->GetMethodID (env, media_codec.klass, "releaseOutputBuffer",
"(IZ)V");
media_codec.start =
(*env)->GetMethodID (env, media_codec.klass, "start", "()V");
media_codec.stop =
(*env)->GetMethodID (env, media_codec.klass, "stop", "()V");
if (!media_codec.configure ||
!media_codec.create_by_codec_name ||
!media_codec.dequeue_input_buffer ||
!media_codec.dequeue_output_buffer ||
!media_codec.flush ||
!media_codec.get_input_buffers ||
!media_codec.get_output_buffers ||
!media_codec.get_output_format ||
!media_codec.queue_input_buffer ||
!media_codec.release ||
!media_codec.release_output_buffer ||
!media_codec.start || !media_codec.stop) {
ret = FALSE;
GST_ERROR ("Failed to get codec methods");
if ((*env)->ExceptionCheck (env)) {
(*env)->ExceptionDescribe (env);
(*env)->ExceptionClear (env);
}
goto done;
}
/* Android >= 21 */
media_codec.get_output_buffer =
(*env)->GetMethodID (env, media_codec.klass, "getOutputBuffer",
"(I)Ljava/nio/ByteBuffer;");
if ((*env)->ExceptionCheck (env))
(*env)->ExceptionClear (env);
/* Android >= 21 */
media_codec.get_input_buffer =
(*env)->GetMethodID (env, media_codec.klass, "getInputBuffer",
"(I)Ljava/nio/ByteBuffer;");
if ((*env)->ExceptionCheck (env))
(*env)->ExceptionClear (env);
done:
if (tmp)
(*env)->DeleteLocalRef (env, tmp);
tmp = NULL;
return ret;
}
static void
gst_amc_jni_free_buffer_array (JNIEnv * env, RealBuffer * buffers,
gsize n_buffers)
{
jsize i;
g_return_if_fail (buffers != NULL);
for (i = 0; i < n_buffers; i++) {
if (buffers[i].object)
gst_amc_jni_object_unref (env, buffers[i].object);
}
g_free (buffers);
}
static gboolean
gst_amc_jni_get_buffer_array (JNIEnv * env, GError ** err, jobject array,
RealBuffer ** buffers_, gsize * n_buffers)
{
RealBuffer **buffers = (RealBuffer **) buffers_;
jsize i;
*n_buffers = (*env)->GetArrayLength (env, array);
*buffers = g_new0 (RealBuffer, *n_buffers);
for (i = 0; i < *n_buffers; i++) {
jobject buffer = NULL;
buffer = (*env)->GetObjectArrayElement (env, array, i);
if ((*env)->ExceptionCheck (env)) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_FAILED, "Failed to get buffer %d", i);
goto error;
}
/* NULL buffers are not a problem and are happening when we configured
* a surface as input/output */
if (!buffer)
continue;
(*buffers)[i].object = gst_amc_jni_object_make_global (env, buffer);
if (!(*buffers)[i].object) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_FAILED,
"Failed to create global buffer reference %d", i);
goto error;
}
(*buffers)[i].data =
(*env)->GetDirectBufferAddress (env, (*buffers)[i].object);
if (!(*buffers)[i].data) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_FAILED, "Failed to get buffer address %d", i);
goto error;
}
(*buffers)[i].size =
(*env)->GetDirectBufferCapacity (env, (*buffers)[i].object);
}
return TRUE;
error:
if (*buffers)
gst_amc_jni_free_buffer_array (env, *buffers, *n_buffers);
*buffers = NULL;
*n_buffers = 0;
return FALSE;
}
void
gst_amc_buffer_free (GstAmcBuffer * buffer_)
{
RealBuffer *buffer = (RealBuffer *) buffer_;
JNIEnv *env;
g_return_if_fail (buffer != NULL);
env = gst_amc_jni_get_env ();
if (buffer->object)
gst_amc_jni_object_unref (env, buffer->object);
g_free (buffer);
}
static GstAmcBuffer *
gst_amc_buffer_copy (RealBuffer * buffer)
{
JNIEnv *env;
RealBuffer *ret;
g_return_val_if_fail (buffer != NULL, NULL);
env = gst_amc_jni_get_env ();
ret = g_new0 (RealBuffer, 1);
ret->object = gst_amc_jni_object_ref (env, buffer->object);
ret->data = buffer->data;
ret->size = buffer->size;
return (GstAmcBuffer *) ret;
}
gboolean
gst_amc_buffer_get_position_and_limit (RealBuffer * buffer_, GError ** err,
gint * position, gint * limit)
{
RealBuffer *buffer = (RealBuffer *) buffer_;
JNIEnv *env;
g_return_val_if_fail (buffer != NULL, FALSE);
g_return_val_if_fail (buffer->object != NULL, FALSE);
env = gst_amc_jni_get_env ();
if (!gst_amc_jni_call_int_method (env, err, buffer->object,
java_nio_buffer.get_position, position))
return FALSE;
if (!gst_amc_jni_call_int_method (env, err, buffer->object,
java_nio_buffer.get_limit, limit))
return FALSE;
return TRUE;
}
gboolean
gst_amc_buffer_set_position_and_limit (GstAmcBuffer * buffer_, GError ** err,
gint position, gint limit)
{
RealBuffer *buffer = (RealBuffer *) buffer_;
JNIEnv *env;
jobject tmp;
g_return_val_if_fail (buffer != NULL, FALSE);
g_return_val_if_fail (buffer->object != NULL, FALSE);
env = gst_amc_jni_get_env ();
if (!gst_amc_jni_call_object_method (env, err, buffer->object,
java_nio_buffer.set_limit, &tmp, limit))
return FALSE;
gst_amc_jni_object_local_unref (env, tmp);
if (!gst_amc_jni_call_object_method (env, err, buffer->object,
java_nio_buffer.set_position, &tmp, position))
return FALSE;
gst_amc_jni_object_local_unref (env, tmp);
return TRUE;
}
GstAmcCodec *
gst_amc_codec_new (const gchar * name, GError ** err)
{
JNIEnv *env;
GstAmcCodec *codec = NULL;
jstring name_str;
jobject object = NULL;
g_return_val_if_fail (name != NULL, NULL);
env = gst_amc_jni_get_env ();
name_str = gst_amc_jni_string_from_gchar (env, err, FALSE, name);
if (!name_str) {
goto error;
}
codec = g_slice_new0 (GstAmcCodec);
if (!gst_amc_jni_call_static_object_method (env, err, media_codec.klass,
media_codec.create_by_codec_name, &object, name_str))
goto error;
codec->object = gst_amc_jni_object_make_global (env, object);
object = NULL;
if (!codec->object) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_SETTINGS, "Failed to create global codec reference");
goto error;
}
done:
if (name_str)
gst_amc_jni_object_local_unref (env, name_str);
name_str = NULL;
return codec;
error:
if (codec)
g_slice_free (GstAmcCodec, codec);
codec = NULL;
goto done;
}
void
gst_amc_codec_free (GstAmcCodec * codec)
{
JNIEnv *env;
g_return_if_fail (codec != NULL);
env = gst_amc_jni_get_env ();
if (codec->input_buffers)
gst_amc_jni_free_buffer_array (env, codec->input_buffers,
codec->n_input_buffers);
codec->input_buffers = NULL;
codec->n_input_buffers = 0;
if (codec->output_buffers)
gst_amc_jni_free_buffer_array (env, codec->output_buffers,
codec->n_output_buffers);
codec->output_buffers = NULL;
codec->n_output_buffers = 0;
gst_amc_jni_object_unref (env, codec->object);
g_slice_free (GstAmcCodec, codec);
}
gboolean
gst_amc_codec_configure (GstAmcCodec * codec, GstAmcFormat * format,
jobject surface, gint flags, GError ** err)
{
JNIEnv *env;
g_return_val_if_fail (codec != NULL, FALSE);
g_return_val_if_fail (format != NULL, FALSE);
env = gst_amc_jni_get_env ();
return gst_amc_jni_call_void_method (env, err, codec->object,
media_codec.configure, format->object, surface, NULL, flags);
}
GstAmcFormat *
gst_amc_codec_get_output_format (GstAmcCodec * codec, GError ** err)
{
JNIEnv *env;
GstAmcFormat *ret = NULL;
jobject object = NULL;
g_return_val_if_fail (codec != NULL, NULL);
env = gst_amc_jni_get_env ();
if (!gst_amc_jni_call_object_method (env, err, codec->object,
media_codec.get_output_format, &object))
goto done;
ret = g_slice_new0 (GstAmcFormat);
ret->object = gst_amc_jni_object_make_global (env, object);
if (!ret->object) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_SETTINGS, "Failed to create global format reference");
g_slice_free (GstAmcFormat, ret);
ret = NULL;
}
done:
return ret;
}
static RealBuffer *
gst_amc_codec_get_input_buffers (GstAmcCodec * codec, gsize * n_buffers,
GError ** err)
{
JNIEnv *env;
jobject input_buffers = NULL;
RealBuffer *ret = NULL;
g_return_val_if_fail (codec != NULL, NULL);
g_return_val_if_fail (n_buffers != NULL, NULL);
*n_buffers = 0;
env = gst_amc_jni_get_env ();
if (!gst_amc_jni_call_object_method (env, err, codec->object,
media_codec.get_input_buffers, &input_buffers))
goto done;
gst_amc_jni_get_buffer_array (env, err, input_buffers, &ret, n_buffers);
done:
if (input_buffers)
gst_amc_jni_object_local_unref (env, input_buffers);
return ret;
}
static RealBuffer *
gst_amc_codec_get_output_buffers (GstAmcCodec * codec, gsize * n_buffers,
GError ** err)
{
JNIEnv *env;
jobject output_buffers = NULL;
RealBuffer *ret = NULL;
g_return_val_if_fail (codec != NULL, NULL);
g_return_val_if_fail (n_buffers != NULL, NULL);
*n_buffers = 0;
env = gst_amc_jni_get_env ();
if (!gst_amc_jni_call_object_method (env, err, codec->object,
media_codec.get_output_buffers, &output_buffers))
goto done;
gst_amc_jni_get_buffer_array (env, err, output_buffers, &ret, n_buffers);
done:
if (output_buffers)
gst_amc_jni_object_local_unref (env, output_buffers);
return ret;
}
gboolean
gst_amc_codec_start (GstAmcCodec * codec, GError ** err)
{
JNIEnv *env;
gboolean ret;
g_return_val_if_fail (codec != NULL, FALSE);
env = gst_amc_jni_get_env ();
ret = gst_amc_jni_call_void_method (env, err, codec->object,
media_codec.start);
if (!ret)
return ret;
if (!media_codec.get_input_buffer) {
if (codec->input_buffers)
gst_amc_jni_free_buffer_array (env, codec->input_buffers,
codec->n_input_buffers);
codec->input_buffers =
gst_amc_codec_get_input_buffers (codec, &codec->n_input_buffers, err);
if (!codec->input_buffers) {
gst_amc_codec_stop (codec, NULL);
return FALSE;
}
}
return ret;
}
gboolean
gst_amc_codec_stop (GstAmcCodec * codec, GError ** err)
{
JNIEnv *env;
g_return_val_if_fail (codec != NULL, FALSE);
env = gst_amc_jni_get_env ();
if (codec->input_buffers)
gst_amc_jni_free_buffer_array (env, codec->input_buffers,
codec->n_input_buffers);
codec->input_buffers = NULL;
codec->n_input_buffers = 0;
if (codec->output_buffers)
gst_amc_jni_free_buffer_array (env, codec->output_buffers,
codec->n_output_buffers);
codec->output_buffers = NULL;
codec->n_output_buffers = 0;
return gst_amc_jni_call_void_method (env, err, codec->object,
media_codec.stop);
}
gboolean
gst_amc_codec_flush (GstAmcCodec * codec, GError ** err)
{
JNIEnv *env;
g_return_val_if_fail (codec != NULL, FALSE);
env = gst_amc_jni_get_env ();
return gst_amc_jni_call_void_method (env, err, codec->object,
media_codec.flush);
}
gboolean
gst_amc_codec_release (GstAmcCodec * codec, GError ** err)
{
JNIEnv *env;
g_return_val_if_fail (codec != NULL, FALSE);
env = gst_amc_jni_get_env ();
if (codec->input_buffers)
gst_amc_jni_free_buffer_array (env, codec->input_buffers,
codec->n_input_buffers);
codec->input_buffers = NULL;
codec->n_input_buffers = 0;
if (codec->output_buffers)
gst_amc_jni_free_buffer_array (env, codec->output_buffers,
codec->n_output_buffers);
codec->output_buffers = NULL;
codec->n_output_buffers = 0;
return gst_amc_jni_call_void_method (env, err, codec->object,
media_codec.release);
}
GstAmcBuffer *
gst_amc_codec_get_output_buffer (GstAmcCodec * codec, gint index, GError ** err)
{
JNIEnv *env;
jobject buffer = NULL;
RealBuffer *ret = NULL;
g_return_val_if_fail (codec != NULL, NULL);
g_return_val_if_fail (index >= 0, NULL);
env = gst_amc_jni_get_env ();
if (!media_codec.get_output_buffer) {
g_return_val_if_fail (index < codec->n_output_buffers && index >= 0, NULL);
if (codec->output_buffers[index].object)
return gst_amc_buffer_copy (&codec->output_buffers[index]);
else
return NULL;
}
if (!gst_amc_jni_call_object_method (env, err, codec->object,
media_codec.get_output_buffer, &buffer, index))
goto done;
if (buffer != NULL) {
ret = g_new0 (RealBuffer, 1);
ret->object = gst_amc_jni_object_make_global (env, buffer);
if (!ret->object) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_FAILED, "Failed to create global buffer reference");
goto error;
}
ret->data = (*env)->GetDirectBufferAddress (env, ret->object);
if (!ret->data) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_FAILED, "Failed to get buffer address");
goto error;
}
ret->size = (*env)->GetDirectBufferCapacity (env, ret->object);
}
done:
return (GstAmcBuffer *) ret;
error:
if (ret->object)
gst_amc_jni_object_unref (env, ret->object);
g_free (ret);
return NULL;
}
GstAmcBuffer *
gst_amc_codec_get_input_buffer (GstAmcCodec * codec, gint index, GError ** err)
{
JNIEnv *env;
jobject buffer = NULL;
RealBuffer *ret = NULL;
g_return_val_if_fail (codec != NULL, NULL);
g_return_val_if_fail (index >= 0, NULL);
env = gst_amc_jni_get_env ();
if (!media_codec.get_input_buffer) {
g_return_val_if_fail (index < codec->n_input_buffers && index >= 0, NULL);
if (codec->input_buffers[index].object)
return gst_amc_buffer_copy (&codec->input_buffers[index]);
else
return NULL;
}
if (!gst_amc_jni_call_object_method (env, err, codec->object,
media_codec.get_input_buffer, &buffer, index))
goto done;
if (buffer != NULL) {
ret = g_new0 (RealBuffer, 1);
ret->object = gst_amc_jni_object_make_global (env, buffer);
if (!ret->object) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_FAILED, "Failed to create global buffer reference");
goto error;
}
ret->data = (*env)->GetDirectBufferAddress (env, ret->object);
if (!ret->data) {
gst_amc_jni_set_error (env, err, GST_LIBRARY_ERROR,
GST_LIBRARY_ERROR_FAILED, "Failed to get buffer address");
goto error;
}
ret->size = (*env)->GetDirectBufferCapacity (env, ret->object);
}
done:
return (GstAmcBuffer *) ret;
error:
if (ret->object)
gst_amc_jni_object_unref (env, ret->object);
g_free (ret);
return NULL;
}
gint
gst_amc_codec_dequeue_input_buffer (GstAmcCodec * codec, gint64 timeoutUs,
GError ** err)
{
JNIEnv *env;
gint ret = G_MININT;
g_return_val_if_fail (codec != NULL, G_MININT);
env = gst_amc_jni_get_env ();
if (!gst_amc_jni_call_int_method (env, err, codec->object,
media_codec.dequeue_input_buffer, &ret, timeoutUs))
return G_MININT;
return ret;
}
static gboolean
gst_amc_codec_fill_buffer_info (JNIEnv * env, jobject buffer_info,
GstAmcBufferInfo * info, GError ** err)
{
g_return_val_if_fail (buffer_info != NULL, FALSE);
if (!gst_amc_jni_get_int_field (env, err, buffer_info,
media_codec_buffer_info.flags, &info->flags))
return FALSE;
if (!gst_amc_jni_get_int_field (env, err, buffer_info,
media_codec_buffer_info.offset, &info->offset))
return FALSE;
if (!gst_amc_jni_get_long_field (env, err, buffer_info,
media_codec_buffer_info.presentation_time_us,
&info->presentation_time_us))
return FALSE;
if (!gst_amc_jni_get_int_field (env, err, buffer_info,
media_codec_buffer_info.size, &info->size))
return FALSE;
return TRUE;
}
gint
gst_amc_codec_dequeue_output_buffer (GstAmcCodec * codec,
GstAmcBufferInfo * info, gint64 timeoutUs, GError ** err)
{
JNIEnv *env;
gint ret = G_MININT;
jobject info_o = NULL;
g_return_val_if_fail (codec != NULL, G_MININT);
env = gst_amc_jni_get_env ();
info_o =
gst_amc_jni_new_object (env, err, FALSE, media_codec_buffer_info.klass,
media_codec_buffer_info.constructor);
if (!info_o)
goto done;
if (!gst_amc_jni_call_int_method (env, err, codec->object,
media_codec.dequeue_output_buffer, &ret, info_o, timeoutUs)) {
ret = G_MININT;
goto done;
}
if (ret == INFO_OUTPUT_BUFFERS_CHANGED || ret == INFO_OUTPUT_FORMAT_CHANGED
|| (ret >= 0 && !codec->output_buffers
&& !media_codec.get_output_buffer)) {
if (!media_codec.get_output_buffer) {
if (codec->output_buffers)
gst_amc_jni_free_buffer_array (env, codec->output_buffers,
codec->n_output_buffers);
codec->output_buffers =
gst_amc_codec_get_output_buffers (codec,
&codec->n_output_buffers, err);
if (!codec->output_buffers) {
ret = G_MININT;
goto done;
}
}
if (ret == INFO_OUTPUT_BUFFERS_CHANGED) {
gst_amc_jni_object_local_unref (env, info_o);
return gst_amc_codec_dequeue_output_buffer (codec, info, timeoutUs, err);
}
} else if (ret < 0) {
goto done;
}
if (ret >= 0 && !gst_amc_codec_fill_buffer_info (env, info_o, info, err)) {
ret = G_MININT;
goto done;
}
done:
if (info_o)
gst_amc_jni_object_local_unref (env, info_o);
info_o = NULL;
return ret;
}
gboolean
gst_amc_codec_queue_input_buffer (GstAmcCodec * codec, gint index,
const GstAmcBufferInfo * info, GError ** err)
{
JNIEnv *env;
g_return_val_if_fail (codec != NULL, FALSE);
g_return_val_if_fail (info != NULL, FALSE);
env = gst_amc_jni_get_env ();
return gst_amc_jni_call_void_method (env, err, codec->object,
media_codec.queue_input_buffer, index, info->offset, info->size,
info->presentation_time_us, info->flags);
}
gboolean
gst_amc_codec_release_output_buffer (GstAmcCodec * codec, gint index,
gboolean render, GError ** err)
{
JNIEnv *env;
g_return_val_if_fail (codec != NULL, FALSE);
env = gst_amc_jni_get_env ();
return gst_amc_jni_call_void_method (env, err, codec->object,
media_codec.release_output_buffer, index, render);
}