/* * gstcompat.h - Compatibility glue for GStreamer * * Copyright (C) 2013 Intel Corporation * * 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; either version 2.1 * of the License, or (at your option) any later version. * * 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_COMPAT_H #define GST_COMPAT_H #include /* ------------------------------------------------------------------------ */ /* --- GStreamer >= 1.0 --- */ /* ------------------------------------------------------------------------ */ #if GST_CHECK_VERSION(1,0,0) #include /* GstStructure */ #undef gst_structure_get_fourcc #define gst_structure_get_fourcc(structure, fieldname, value) \ gst_compat_structure_get_fourcc(structure, fieldname, value) static inline gboolean gst_compat_structure_get_fourcc(const GstStructure *structure, const gchar *fieldname, guint32 *value) { const gchar *s = gst_structure_get_string(structure, fieldname); if (!s || strlen(s) != 4) return FALSE; *value = GST_MAKE_FOURCC(s[0], s[1], s[2], s[3]); return TRUE; } /* GstTypeFind */ #undef GstTypeFindPeekFunction #define GstTypeFindPeekFunction GstCompatTypeFindPeekFunction #undef GstTypeFindSuggestFunction #define GstTypeFindSuggestFunction GstCompatTypeFindSuggestFunction typedef const guint8 *(*GstCompatTypeFindPeekFunction)(gpointer, gint64, guint); typedef void (*GstCompatTypeFindSuggestFunction)(gpointer, guint, GstCaps *); /* GstQuery */ #define GST_PAD_QUERY_FUNCTION_ARGS \ GstPad *pad, GstObject *parent, GstQuery *query #define GST_PAD_QUERY_FUNCTION_CALL(func, pad, parent, query) \ (func)(pad, parent, query) /* GstPlugin */ #define GST_PLUGIN_DESC_NAME(NAME) NAME /* Misc helpers */ #define GST_MAKE_FORMAT_STRING(FORMAT) \ "format=(string)" G_STRINGIFY(FORMAT) /* ------------------------------------------------------------------------ */ /* --- GStreamer = 0.10 --- */ /* ------------------------------------------------------------------------ */ #else /* GstMemory */ typedef enum { GST_MEMORY_FLAG_READONLY = GST_MINI_OBJECT_FLAG_READONLY } GstMemoryFlags; typedef enum { GST_MAP_READ = 1 << 0, GST_MAP_WRITE = 1 << 1 } GstMapFlags; typedef struct { GstMapFlags flags; guint8 *data; gsize size; } GstMapInfo; /* GstBuffer */ #undef gst_buffer_new_wrapped #define gst_buffer_new_wrapped(data, size) \ gst_compat_buffer_new_wrapped_full(0, data, size, 0, size, data, g_free) #undef gst_buffer_new_wrapped_full #define gst_buffer_new_wrapped_full(flags, data, maxsize, ofs, size, ud, udd) \ gst_compat_buffer_new_wrapped_full(flags, data, maxsize, ofs, size, ud, udd) #undef gst_buffer_get_size #define gst_buffer_get_size(buffer) gst_compat_buffer_get_size(buffer) #undef gst_buffer_map #define gst_buffer_map(buffer, mip, f) gst_compat_buffer_map(buffer, mip, f) #undef gst_buffer_unmap #define gst_buffer_unmap(buffer, mip) gst_compat_buffer_unmap(buffer, mip) #undef gst_buffer_extract #define gst_buffer_extract(buffer, offset, dest, size) \ gst_compat_buffer_extract(buffer, offset, dest, size) static inline GstBuffer * gst_compat_buffer_new_wrapped_full(GstMemoryFlags flags, gpointer data, gsize maxsize, gsize offset, gsize size, gpointer user_data, GDestroyNotify notify) { GstBuffer *buffer; /* XXX: unsupported */ g_return_val_if_fail(user_data == NULL, NULL); g_return_val_if_fail(notify == NULL, NULL); g_return_val_if_fail(maxsize >= size, NULL); buffer = gst_buffer_new(); if (!buffer) return NULL; GST_BUFFER_DATA(buffer) = data + offset; GST_BUFFER_SIZE(buffer) = size; return buffer; } static inline gsize gst_compat_buffer_get_size(GstBuffer *buffer) { return GST_BUFFER_SIZE(buffer); } static inline gboolean gst_compat_buffer_map(GstBuffer *buffer, GstMapInfo *mip, GstMapFlags flags) { mip->flags = flags; mip->data = GST_BUFFER_DATA(buffer); mip->size = GST_BUFFER_SIZE(buffer); return TRUE; } static inline void gst_compat_buffer_unmap(GstBuffer *buffer, GstMapInfo *mip) { } static inline gsize gst_compat_buffer_extract(GstBuffer *buffer, gsize offset, gpointer dest, gsize size) { gsize esize; if (!buffer || !dest || offset >= GST_BUFFER_SIZE(buffer)) return 0; esize = MIN(size, GST_BUFFER_SIZE(buffer) - offset); memcpy(dest, GST_BUFFER_DATA(buffer) + offset, esize); return esize; } /* GstAdapter */ #include #undef gst_adapter_map #define gst_adapter_map(adapter, size) gst_compat_adapter_map(adapter, size) #undef gst_adapter_unmap #define gst_adapter_unmap(adapter) gst_compat_adapter_unmap(adapter) static inline gconstpointer gst_compat_adapter_map(GstAdapter *adapter, gsize size) { return gst_adapter_peek(adapter, size); } static inline void gst_compat_adapter_unmap(GstAdapter *adapter) { } /* GstCaps */ #undef gst_caps_merge #define gst_caps_merge(caps1, caps2) gst_compat_caps_merge(caps1, caps2) #undef gst_caps_merge_structure #define gst_caps_merge_structure(caps, structure) \ gst_compat_caps_merge_structure(caps, structure) static inline GstCaps * gst_compat_caps_merge(GstCaps *caps1, GstCaps *caps2) { (gst_caps_merge)(caps1, caps2); return caps1; } static inline GstCaps * gst_compat_caps_merge_structure(GstCaps *caps, GstStructure *structure) { (gst_caps_merge_structure)(caps, structure); return caps; } /* GstVideoOverlayComposition */ #include #undef gst_video_overlay_rectangle_get_pixels_unscaled_raw #define gst_video_overlay_rectangle_get_pixels_unscaled_raw(rect, flags) \ gst_compat_video_overlay_rectangle_get_pixels_unscaled_raw(rect, flags) #ifndef HAVE_GST_VIDEO_OVERLAY_HWCAPS #define gst_video_overlay_rectangle_get_flags(rect) (0) #define gst_video_overlay_rectangle_get_global_alpha(rect) (1.0f) #endif static inline GstBuffer * gst_compat_video_overlay_rectangle_get_pixels_unscaled_raw( GstVideoOverlayRectangle *rect, GstVideoOverlayFormatFlags flags) { guint width, height, stride; /* Try to retrieve the original buffer that was passed to gst_video_overlay_rectangle_new_argb(). This will only work if there was no previous user that required pixels with non native alpha type */ return gst_video_overlay_rectangle_get_pixels_unscaled_argb(rect, &width, &height, &stride, flags); } /* GstPad */ #undef GST_FLOW_EOS #define GST_FLOW_EOS GST_FLOW_UNEXPECTED /* GstElement */ #undef gst_element_class_set_static_metadata #define gst_element_class_set_static_metadata(klass, name, path, desc, author) \ gst_compat_element_class_set_static_metadata(klass, name, path, desc, author) static inline void gst_compat_element_class_set_static_metadata(GstElementClass *klass, const gchar *name, const char *path, const gchar *desc, const gchar *author) { gst_element_class_set_details_simple(klass, name, path, desc, author); } /* GstTypeFind */ #undef GstTypeFindPeekFunction #define GstTypeFindPeekFunction GstCompatTypeFindPeekFunction #undef GstTypeFindSuggestFunction #define GstTypeFindSuggestFunction GstCompatTypeFindSuggestFunction typedef guint8 *(*GstCompatTypeFindPeekFunction)(gpointer, gint64, guint); typedef void (*GstCompatTypeFindSuggestFunction)(gpointer, guint, const GstCaps *); /* GstQuery */ #define GST_PAD_QUERY_FUNCTION_ARGS \ GstPad *pad, GstQuery *query #define GST_PAD_QUERY_FUNCTION_CALL(func, pad, parent, query) \ (func)(pad, query) /* GstPlugin */ #define GST_PLUGIN_DESC_NAME(NAME) G_STRINGIFY(NAME) /* Misc helpers */ #define GST_MAKE_FORMAT_STRING(FORMAT) \ "format=(fourcc)" G_STRINGIFY(FORMAT) #endif #endif /* GST_COMPAT_H */