1 files changed, 76 insertions, 0 deletions
diff --git a/audio/out/internal.h b/audio/out/internal.h
new file mode 100644
index 0000000000..5cb12886a7
--- /dev/null
+++ b/audio/out/internal.h
@@ -0,0 +1,76 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer 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 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MP_AO_INTERNAL_H_
+#define MP_AO_INTERNAL_H_
+
+/* global data used by ao.c and ao drivers */
+struct ao {
+    int samplerate;
+    struct mp_chmap channels;
+    int format;                 // one of AF_FORMAT_...
+    int bps;                    // bytes per second
+    int sstride;                // size of a sample on each plane
+                                // (format_size*num_channels/num_planes)
+    bool probing;               // if true, don't fail loudly on init
+    bool untimed;               // don't assume realtime playback
+    bool no_persistent_volume;  // the AO does the equivalent of af_volume
+    bool per_application_mixer; // like above, but volume persists (per app)
+    const struct ao_driver *driver;
+    void *priv;
+    struct encode_lavc_context *encode_lavc_ctx;
+    struct MPOpts *opts;
+    struct input_ctx *input_ctx;
+    struct mp_log *log; // Using e.g. "[ao/coreaudio]" as prefix
+};
+
+struct ao_driver {
+    // If true, use with encoding only.
+    bool encode;
+    // Name used for --ao.
+    const char *name;
+    // Description shown with --ao=help.
+    const char *description;
+    // Init the device using ao->format/ao->channels/ao->samplerate. If the
+    // device doesn't accept these parameters, you can attempt to negotiate
+    // fallback parameters, and set the ao format fields accordingly.
+    int (*init)(struct ao *ao);
+    // See ao_control() etc. in ao.c
+    int (*control)(struct ao *ao, enum aocontrol cmd, void *arg);
+    void (*uninit)(struct ao *ao, bool cut_audio);
+    void (*reset)(struct ao*ao);
+    int (*get_space)(struct ao *ao);
+    int (*play)(struct ao *ao, void **data, int samples, int flags);
+    float (*get_delay)(struct ao *ao);
+    void (*pause)(struct ao *ao);
+    void (*resume)(struct ao *ao);
+
+    // For option parsing (see vo.h)
+    int priv_size;
+    const void *priv_defaults;
+    const struct m_option *options;
+};
+
+// These functions can be called by AOs. They don't lock the AO.
+int ao_play_silence(struct ao *ao, int samples);
+bool ao_chmap_sel_adjust(struct ao *ao, const struct mp_chmap_sel *s,
+                         struct mp_chmap *map);
+bool ao_chmap_sel_get_def(struct ao *ao, const struct mp_chmap_sel *s,
+                          struct mp_chmap *map, int num);
+
+#endif