update upstream-2021-08-15

src/modules/bluetooth/a2dp-codec-gst.h

@@ -0,0 +1,57 @@
+/***
+  This file is part of PulseAudio.
+
+  Copyright (C) 2020 Asymptotic <sanchayan@asymptotic.io>
+
+  PulseAudio 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; either version 2.1 of the
+  License, or (at your option) any later version.
+
+  PulseAudio 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 Lesser General Public
+  License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <gst/gst.h>
+#include <gst/app/gstappsrc.h>
+#include <gst/app/gstappsink.h>
+#include <gst/base/gstadapter.h>
+#include <pulsecore/fdsem.h>
+
+enum a2dp_codec_type {
+    AAC = 0,
+    APTX,
+    APTX_HD,
+    LDAC_EQMID_HQ,
+    LDAC_EQMID_SQ,
+    LDAC_EQMID_MQ
+};
+
+struct gst_info {
+    pa_core *core;
+    pa_sample_spec *ss;
+    enum a2dp_codec_type codec_type;
+    union {
+        const a2dp_aac_t *aac_config;
+        const a2dp_aptx_t *aptx_config;
+        const a2dp_aptx_hd_t *aptx_hd_config;
+        const a2dp_ldac_t *ldac_config;
+    } a2dp_codec_t;
+
+    GstElement *app_src, *app_sink;
+    GstElement *pipeline;
+    GstAdapter *sink_adapter;
+
+    pa_fdsem *sample_ready_fdsem;
+
+    uint16_t seq_num;
+};
+
+bool gst_codec_init(struct gst_info *info, bool for_encoding, GstElement *transcoder);
+size_t gst_transcode_buffer(void *codec_info, const uint8_t *input_buffer, size_t input_size, uint8_t *output_buffer, size_t output_size, size_t *processed);
+void gst_codec_deinit(void *codec_info);