gstreamer/omx/gstomx.h

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/*
* Copyright (C) 2011, Hewlett-Packard Development Company, L.P.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>, Collabora Ltd.
* Copyright (C) 2013, Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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 <gmodule.h>
#include <gst/gst.h>
#include <string.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef GST_OMX_STRUCT_PACKING
# if GST_OMX_STRUCT_PACKING == 1
# pragma pack(1)
# elif GST_OMX_STRUCT_PACKING == 2
# pragma pack(2)
# elif GST_OMX_STRUCT_PACKING == 4
# pragma pack(4)
# elif GST_OMX_STRUCT_PACKING == 8
# pragma pack(8)
# else
# error "Unsupported struct packing value"
# endif
#endif
/* If the component may signal EOS before it has finished pushing
* out all of its buffers. Happens with egl_render on the rpi.
*/
#define GST_OMX_HACK_SIGNALS_PREMATURE_EOS G_GUINT64_CONSTANT (0x0000000000000400)
#include <OMX_Core.h>
#include <OMX_Component.h>
#ifdef USE_OMX_TARGET_RPI
#include <OMX_Broadcom.h>
#endif
#ifdef HAVE_VIDEO_EXT
#include <OMX_VideoExt.h>
#endif
#ifdef HAVE_INDEX_EXT
#include <OMX_IndexExt.h>
#endif
#ifdef HAVE_COMPONENT_EXT
#include <OMX_ComponentExt.h>
#endif
#ifdef GST_OMX_STRUCT_PACKING
#pragma pack()
#endif
G_BEGIN_DECLS
#define GST_OMX_INIT_STRUCT(st) G_STMT_START { \
memset ((st), 0, sizeof (*(st))); \
(st)->nSize = sizeof (*(st)); \
(st)->nVersion.s.nVersionMajor = OMX_VERSION_MAJOR; \
(st)->nVersion.s.nVersionMinor = OMX_VERSION_MINOR; \
(st)->nVersion.s.nRevision = OMX_VERSION_REVISION; \
(st)->nVersion.s.nStep = OMX_VERSION_STEP; \
} G_STMT_END
#ifdef OMX_SKIP64BIT
#define GST_OMX_GET_TICKS(ticks) ((((guint64) (ticks).nHighPart) << 32) | ((ticks).nLowPart))
#define GST_OMX_SET_TICKS(ticks, i) G_STMT_START { \
ticks.nLowPart = ((guint64) (i)) & 0xffffffff; \
ticks.nHighPart = ((guint64) (i)) >> 32; \
} G_STMT_END
#else
#define GST_OMX_GET_TICKS(ticks) (ticks)
#define GST_OMX_SET_TICKS(ticks, i) G_STMT_START { \
ticks = i; \
} G_STMT_END
#endif
/* OMX_StateInvalid does not exist in 1.2.0 spec. The initial state is now
* StateLoaded. Problem is that gst-omx still needs an initial state different
* than StateLoaded. Otherwise gst_omx_component_set_state(StateLoaded) will
* early return because it will think it is already in StateLoaded. Also note
* that there is no call to gst_omx_component_set_state(StateInvalid) so this
* also shows that StateInvalid is used as a helper in gst-omx.
*/
#if OMX_VERSION_MINOR == 2
#define OMX_StateInvalid OMX_StateReserved_0x00000000
#endif
/* 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)
/* If the video framerate is not specified as fraction (Q.16) but as
* integer number. Happens with the Bellagio ffmpegdist video encoder.
*/
#define GST_OMX_HACK_VIDEO_FRAMERATE_INTEGER G_GUINT64_CONSTANT (0x0000000000000004)
/* If the SYNCFRAME flag on encoder output buffers is not used and we
* have to assume that all frames are sync frames.
* Happens with the Bellagio ffmpegdist video encoder.
*/
#define GST_OMX_HACK_SYNCFRAME_FLAG_NOT_USED G_GUINT64_CONSTANT (0x0000000000000008)
/* If the component needs to be re-created if the caps change.
* Happens with Qualcomm's OpenMAX implementation.
*/
#define GST_OMX_HACK_NO_COMPONENT_RECONFIGURE G_GUINT64_CONSTANT (0x0000000000000010)
/* If the component does not accept empty EOS buffers.
* Happens with Qualcomm's OpenMAX implementation.
*/
#define GST_OMX_HACK_NO_EMPTY_EOS_BUFFER G_GUINT64_CONSTANT (0x0000000000000020)
/* If the component might not acknowledge a drain.
* Happens with TI's Ducati OpenMAX implementation.
*/
#define GST_OMX_HACK_DRAIN_MAY_NOT_RETURN G_GUINT64_CONSTANT (0x0000000000000040)
/* If the component doesn't allow any component role to be set.
* Happens with Broadcom's OpenMAX implementation.
*/
#define GST_OMX_HACK_NO_COMPONENT_ROLE G_GUINT64_CONSTANT (0x0000000000000080)
/* If the component doesn't allow disabling the outport while
* when setting the format until the output format is known.
*/
#define GST_OMX_HACK_NO_DISABLE_OUTPORT G_GUINT64_CONSTANT (0x0000000000000100)
/* If the encoder requires input buffers that have a height
* which is a multiple of 16 pixels
*/
#define GST_OMX_HACK_HEIGHT_MULTIPLE_16 G_GUINT64_CONSTANT (0x0000000000000200)
/* If we should pass the profile/level information from upstream to the
* OMX decoder. This is a violation of the OMX spec as
* OMX_IndexParamVideoProfileLevelCurrent is supposed to be r-o so
* do it as a platform specific hack.
*/
#define GST_OMX_HACK_PASS_PROFILE_TO_DECODER G_GUINT64_CONSTANT (0x0000000000000800)
typedef struct _GstOMXCore GstOMXCore;
typedef struct _GstOMXPort GstOMXPort;
typedef enum _GstOMXPortDirection GstOMXPortDirection;
typedef struct _GstOMXComponent GstOMXComponent;
typedef struct _GstOMXBuffer GstOMXBuffer;
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typedef struct _GstOMXClassData GstOMXClassData;
typedef struct _GstOMXMessage GstOMXMessage;
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 is EOS */
GST_OMX_ACQUIRE_BUFFER_EOS,
/* 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 */
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GMutex lock;
gint user_count; /* LOCK */
/* OpenMAX core library functions, protected with LOCK */
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);
OMX_ERRORTYPE (*setup_tunnel) (OMX_HANDLETYPE output, OMX_U32 outport, OMX_HANDLETYPE input, OMX_U32 inport);
};
typedef enum {
GST_OMX_MESSAGE_STATE_SET,
GST_OMX_MESSAGE_FLUSH,
GST_OMX_MESSAGE_ERROR,
GST_OMX_MESSAGE_PORT_ENABLE,
GST_OMX_MESSAGE_PORT_SETTINGS_CHANGED,
GST_OMX_MESSAGE_BUFFER_FLAG,
GST_OMX_MESSAGE_BUFFER_DONE,
} GstOMXMessageType;
typedef enum {
GST_OMX_COMPONENT_TYPE_SINK,
GST_OMX_COMPONENT_TYPE_SOURCE,
GST_OMX_COMPONENT_TYPE_FILTER
} GstOmxComponentType;
struct _GstOMXMessage {
GstOMXMessageType type;
union {
struct {
OMX_STATETYPE state;
} state_set;
struct {
OMX_U32 port;
} flush;
struct {
OMX_ERRORTYPE error;
} error;
struct {
OMX_U32 port;
OMX_BOOL enable;
} port_enable;
struct {
OMX_U32 port;
} port_settings_changed;
struct {
OMX_U32 port;
OMX_U32 flags;
} buffer_flag;
struct {
OMX_HANDLETYPE component;
OMX_PTR app_data;
OMX_BUFFERHEADERTYPE *buffer;
OMX_BOOL empty;
} buffer_done;
} content;
};
struct _GstOMXPort {
GstOMXComponent *comp;
guint32 index;
gboolean tunneled;
OMX_PARAM_PORTDEFINITIONTYPE port_def;
GPtrArray *buffers; /* Contains GstOMXBuffer* */
GQueue pending_buffers; /* Contains GstOMXBuffer* */
gboolean flushing;
gboolean flushed; /* TRUE after OMX_CommandFlush was done */
gboolean enabled_pending; /* TRUE after OMX_Command{En,Dis}able */
gboolean disabled_pending; /* was done until it took effect */
gboolean eos; /* TRUE after a buffer with EOS flag was received */
/* 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;
gchar *name; /* for debugging mostly */
OMX_HANDLETYPE handle;
GstOMXCore *core;
guint64 hacks; /* Flags, GST_OMX_HACK_* */
/* Added once, never changed. No locks necessary */
GPtrArray *ports; /* Contains GstOMXPort* */
gint n_in_ports, n_out_ports;
/* Locking order: lock -> messages_lock
*
* Never hold lock while waiting for messages_cond
* Always check that messages is empty before waiting */
GMutex lock;
GQueue messages; /* Queue of GstOMXMessages */
GMutex messages_lock;
GCond messages_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;
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;
/* TRUE if this is an EGLImage */
gboolean eglimage;
};
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struct _GstOMXClassData {
const gchar *core_name;
const gchar *component_name;
const gchar *component_role;
const gchar *default_src_template_caps;
const gchar *default_sink_template_caps;
guint32 in_port_index, out_port_index;
guint64 hacks;
GstOmxComponentType type;
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};
GKeyFile * gst_omx_get_configuration (void);
const gchar * gst_omx_error_to_string (OMX_ERRORTYPE err);
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const gchar * gst_omx_state_to_string (OMX_STATETYPE state);
const gchar * gst_omx_command_to_string (OMX_COMMANDTYPE cmd);
const gchar * gst_omx_buffer_flags_to_string (guint32 flags);
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);
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);
OMX_ERRORTYPE gst_omx_component_get_parameter (GstOMXComponent * comp, OMX_INDEXTYPE index, gpointer param);
OMX_ERRORTYPE gst_omx_component_set_parameter (GstOMXComponent * comp, OMX_INDEXTYPE index, gpointer param);
OMX_ERRORTYPE gst_omx_component_get_config (GstOMXComponent * comp, OMX_INDEXTYPE index, gpointer config);
OMX_ERRORTYPE gst_omx_component_set_config (GstOMXComponent * comp, OMX_INDEXTYPE index, gpointer config);
OMX_ERRORTYPE gst_omx_setup_tunnel (GstOMXPort * port1, GstOMXPort * port2);
OMX_ERRORTYPE gst_omx_close_tunnel (GstOMXPort * port1, GstOMXPort * port2);
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OMX_ERRORTYPE gst_omx_port_get_port_definition (GstOMXPort * port, OMX_PARAM_PORTDEFINITIONTYPE * port_def);
OMX_ERRORTYPE 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, GstClockTime timeout, gboolean flush);
gboolean gst_omx_port_is_flushing (GstOMXPort *port);
OMX_ERRORTYPE gst_omx_port_allocate_buffers (GstOMXPort *port);
OMX_ERRORTYPE gst_omx_port_use_buffers (GstOMXPort *port, const GList *buffers);
OMX_ERRORTYPE gst_omx_port_use_eglimages (GstOMXPort *port, const GList *images);
OMX_ERRORTYPE gst_omx_port_deallocate_buffers (GstOMXPort *port);
OMX_ERRORTYPE gst_omx_port_populate (GstOMXPort *port);
OMX_ERRORTYPE gst_omx_port_wait_buffers_released (GstOMXPort * port, GstClockTime timeout);
OMX_ERRORTYPE gst_omx_port_mark_reconfigured (GstOMXPort * port);
OMX_ERRORTYPE gst_omx_port_set_enabled (GstOMXPort * port, gboolean enabled);
OMX_ERRORTYPE gst_omx_port_wait_enabled (GstOMXPort * port, GstClockTime timeout);
gboolean gst_omx_port_is_enabled (GstOMXPort * port);
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void gst_omx_set_default_role (GstOMXClassData *class_data, const gchar *default_role);
/* refered by plugin_init */
GST_DEBUG_CATEGORY_EXTERN (gst_omx_video_debug_category);
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G_END_DECLS
#endif /* __GST_OMX_H__ */