/* * Copyright (C) 2011, Hewlett-Packard Development Company, L.P. * Author: Sebastian Dröge , Collabora Ltd. * * 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 * */ #ifndef __GST_OMX_H__ #define __GST_OMX_H__ #include #include #include G_BEGIN_DECLS /* Different hacks that are required to work around * bugs in different OpenMAX implementations */ /* In the EventSettingsChanged callback use nData2 instead of nData1 for * the port index. Happens with Bellagio. */ #define GST_OMX_HACK_EVENT_PORT_SETTINGS_CHANGED_NDATA_PARAMETER_SWAP G_GUINT64_CONSTANT (0x0000000000000001) /* In the EventSettingsChanged callback assume that port index 0 really * means port index 1. Happens with the Bellagio ffmpegdist video decoder. */ #define GST_OMX_HACK_EVENT_PORT_SETTINGS_CHANGED_PORT_0_TO_1 G_GUINT64_CONSTANT (0x0000000000000002) typedef struct _GstOMXCore GstOMXCore; typedef struct _GstOMXPort GstOMXPort; typedef enum _GstOMXPortDirection GstOMXPortDirection; typedef struct _GstOMXComponent GstOMXComponent; typedef struct _GstOMXBuffer GstOMXBuffer; typedef enum { /* Everything good and the buffer is valid */ GST_OMX_ACQUIRE_BUFFER_OK = 0, /* The port is flushing, exit ASAP */ GST_OMX_ACQUIRE_BUFFER_FLUSHING, /* The port must be reconfigured */ GST_OMX_ACQUIRE_BUFFER_RECONFIGURE, /* The port was reconfigured and the caps might have changed * NOTE: This is only returned a single time! */ GST_OMX_ACQUIRE_BUFFER_RECONFIGURED, /* A fatal error happened */ GST_OMX_ACQUIRE_BUFFER_ERROR } GstOMXAcquireBufferReturn; struct _GstOMXCore { /* Handle to the OpenMAX IL core shared library */ GModule *module; /* Current number of users, transitions from/to 0 * call init/deinit */ GMutex *lock; gint user_count; /* LOCK */ /* OpenMAX core library functions, protected with LOCK */ /* FIXME: OpenMAX spec does not specify that this is required * but gst-openmax does it */ OMX_ERRORTYPE (*init) (void); OMX_ERRORTYPE (*deinit) (void); OMX_ERRORTYPE (*get_handle) (OMX_HANDLETYPE * handle, OMX_STRING name, OMX_PTR data, OMX_CALLBACKTYPE * callbacks); OMX_ERRORTYPE (*free_handle) (OMX_HANDLETYPE handle); }; struct _GstOMXPort { GstOMXComponent *comp; guint32 index; /* Protects port_def, buffers, pending_buffers, * settings_changed, flushing, flushed, enabled_changed * and settings_cookie. * * Signalled if pending_buffers gets a * new buffer or flushing/flushed is set * to TRUE or the port is enabled/disabled * or the settings change or an error happens. * * Note: Always check comp->last_error before * waiting and after being signalled! * * Note: flushed==TRUE implies flushing==TRUE! * * Note: This lock must always be taken before * the component's state lock if both are needed! */ GMutex *port_lock; GCond *port_cond; OMX_PARAM_PORTDEFINITIONTYPE port_def; GPtrArray *buffers; /* Contains GstOMXBuffer* */ GQueue *pending_buffers; /* Contains GstOMXBuffer* */ /* If TRUE we need to get the new caps of this port */ gboolean settings_changed; gboolean flushing; gboolean flushed; /* TRUE after OMX_CommandFlush was done */ gboolean enabled_changed; /* TRUE after OMX_Command{En,Dis}able was done */ /* Increased whenever the settings of these port change. * If settings_cookie != configured_settings_cookie * the port has to be reconfigured. */ gint settings_cookie; gint configured_settings_cookie; }; struct _GstOMXComponent { GstObject *parent; OMX_HANDLETYPE handle; GstOMXCore *core; guint64 hacks; /* Flags, GST_OMX_HACK_* */ GPtrArray *ports; /* Contains GstOMXPort* */ gint n_in_ports, n_out_ports; /* Protecting state, pending_state, last_error, * pending_reconfigure_outports. * Signalled if one of them changes */ GMutex *state_lock; GCond *state_cond; OMX_STATETYPE state; /* OMX_StateInvalid if no pending state */ OMX_STATETYPE pending_state; /* OMX_ErrorNone usually, if different nothing will work */ OMX_ERRORTYPE last_error; gint have_pending_reconfigure_outports; /* atomic */ GList *pending_reconfigure_outports; }; struct _GstOMXBuffer { GstOMXPort *port; OMX_BUFFERHEADERTYPE *omx_buf; /* TRUE if the buffer is used by the port, i.e. * between {Empty,Fill}ThisBuffer and the callback */ gboolean used; /* Cookie of the settings when this buffer was allocated */ gint settings_cookie; }; extern GQuark gst_omx_element_name_quark; GKeyFile * gst_omx_get_configuration (void); const gchar * gst_omx_error_to_string (OMX_ERRORTYPE err); guint64 gst_omx_parse_hacks (gchar ** hacks); GstOMXCore * gst_omx_core_acquire (const gchar * filename); void gst_omx_core_release (GstOMXCore * core); GstOMXComponent * gst_omx_component_new (GstObject *parent, const gchar * core_name, const gchar * component_name, const gchar *component_role, guint64 hacks); void gst_omx_component_free (GstOMXComponent * comp); OMX_ERRORTYPE gst_omx_component_set_state (GstOMXComponent * comp, OMX_STATETYPE state); OMX_STATETYPE gst_omx_component_get_state (GstOMXComponent * comp, GstClockTime timeout); void gst_omx_component_set_last_error (GstOMXComponent * comp, OMX_ERRORTYPE err); OMX_ERRORTYPE gst_omx_component_get_last_error (GstOMXComponent * comp); const gchar * gst_omx_component_get_last_error_string (GstOMXComponent * comp); GstOMXPort * gst_omx_component_add_port (GstOMXComponent * comp, guint32 index); GstOMXPort * gst_omx_component_get_port (GstOMXComponent * comp, guint32 index); void gst_omx_component_trigger_settings_changed (GstOMXComponent * comp, guint32 port_index); void gst_omx_port_get_port_definition (GstOMXPort * port, OMX_PARAM_PORTDEFINITIONTYPE * port_def); gboolean gst_omx_port_update_port_definition (GstOMXPort *port, OMX_PARAM_PORTDEFINITIONTYPE *port_definition); GstOMXAcquireBufferReturn gst_omx_port_acquire_buffer (GstOMXPort *port, GstOMXBuffer **buf); OMX_ERRORTYPE gst_omx_port_release_buffer (GstOMXPort *port, GstOMXBuffer *buf); OMX_ERRORTYPE gst_omx_port_set_flushing (GstOMXPort *port, gboolean flush); gboolean gst_omx_port_is_flushing (GstOMXPort *port); OMX_ERRORTYPE gst_omx_port_allocate_buffers (GstOMXPort *port); OMX_ERRORTYPE gst_omx_port_deallocate_buffers (GstOMXPort *port); OMX_ERRORTYPE gst_omx_port_reconfigure (GstOMXPort * port); OMX_ERRORTYPE gst_omx_port_set_enabled (GstOMXPort * port, gboolean enabled); gboolean gst_omx_port_is_enabled (GstOMXPort * port); OMX_ERRORTYPE gst_omx_port_manual_reconfigure (GstOMXPort * port, gboolean start); G_END_DECLS #endif /* __GST_OMX_H__ */