avcodec: add new Videotoolbox hwaccel.

1 files changed, 55 insertions, 0 deletions

diff --git a/libavcodec/vda_vt_internal.h b/libavcodec/vda_vt_internal.h
new file mode 100644
index 0000000000..9ff63ccc52
--- /dev/null
+++ b/libavcodec/vda_vt_internal.h
@@ -0,0 +1,55 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_VDA_VT_INTERNAL_H
+#define AVCODEC_VDA_VT_INTERNAL_H
+
+void ff_vda_output_callback(void *vda_hw_ctx,
+                            CFDictionaryRef user_info,
+                            OSStatus status,
+                            uint32_t infoFlags,
+                            CVImageBufferRef image_buffer);
+
+int ff_vda_default_init(AVCodecContext *avctx);
+void ff_vda_default_free(AVCodecContext *avctx);
+
+typedef struct VTContext {
+    // The current bitstream buffer.
+    uint8_t                     *bitstream;
+
+    // The current size of the bitstream.
+    int                         bitstream_size;
+
+    // The reference size used for fast reallocation.
+    int                         allocated_size;
+
+    // The core video buffer
+    CVImageBufferRef            frame;
+} VTContext;
+
+int ff_videotoolbox_alloc_frame(AVCodecContext *avctx, AVFrame *frame);
+int ff_videotoolbox_uninit(AVCodecContext *avctx);
+int ff_videotoolbox_buffer_create(VTContext *vtctx, AVFrame *frame);
+int ff_videotoolbox_h264_start_frame(AVCodecContext *avctx,
+                                     const uint8_t *buffer,
+                                     uint32_t size);
+int ff_videotoolbox_h264_decode_slice(AVCodecContext *avctx,
+                                      const uint8_t *buffer,
+                                      uint32_t size);
+CFDataRef ff_videotoolbox_avcc_extradata_create(AVCodecContext *avctx);
+#endif /* AVCODEC_VDA_VT_INTERNAL_H */