1 files changed, 97 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/error_resilience.h b/media/ffvpx/libavcodec/error_resilience.h
new file mode 100644
index 0000000000..664a765659
--- /dev/null
+++ b/media/ffvpx/libavcodec/error_resilience.h
@@ -0,0 +1,97 @@
+/*
+ * 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_ERROR_RESILIENCE_H
+#define AVCODEC_ERROR_RESILIENCE_H
+
+#include <stdint.h>
+#include <stdatomic.h>
+
+#include "avcodec.h"
+#include "me_cmp.h"
+#include "thread.h"
+
+///< current MB is the first after a resync marker
+#define VP_START               1
+#define ER_AC_ERROR            2
+#define ER_DC_ERROR            4
+#define ER_MV_ERROR            8
+#define ER_AC_END              16
+#define ER_DC_END              32
+#define ER_MV_END              64
+
+#define ER_MB_ERROR (ER_AC_ERROR|ER_DC_ERROR|ER_MV_ERROR)
+#define ER_MB_END   (ER_AC_END|ER_DC_END|ER_MV_END)
+
+typedef struct ERPicture {
+    AVFrame *f;
+    ThreadFrame *tf;
+
+    // it is the caller's responsibility to allocate these buffers
+    int16_t (*motion_val[2])[2];
+    int8_t *ref_index[2];
+
+    uint32_t *mb_type;
+    int field_picture;
+} ERPicture;
+
+typedef struct ERContext {
+    AVCodecContext *avctx;
+    MECmpContext mecc;
+    int mecc_inited;
+
+    int *mb_index2xy;
+    int mb_num;
+    int mb_width, mb_height;
+    ptrdiff_t mb_stride;
+    ptrdiff_t b8_stride;
+
+    atomic_int error_count;
+    int error_occurred;
+    uint8_t *error_status_table;
+    uint8_t *er_temp_buffer;
+    int16_t *dc_val[3];
+    uint8_t *mbskip_table;
+    uint8_t *mbintra_table;
+    int mv[2][4][2];
+
+    ERPicture cur_pic;
+    ERPicture last_pic;
+    ERPicture next_pic;
+
+    AVBufferRef *ref_index_buf[2];
+    AVBufferRef *motion_val_buf[2];
+
+    uint16_t pp_time;
+    uint16_t pb_time;
+    int quarter_sample;
+    int partitioned_frame;
+    int ref_count;
+
+    void (*decode_mb)(void *opaque, int ref, int mv_dir, int mv_type,
+                      int (*mv)[2][4][2],
+                      int mb_x, int mb_y, int mb_intra, int mb_skipped);
+    void *opaque;
+} ERContext;
+
+void ff_er_frame_start(ERContext *s);
+void ff_er_frame_end(ERContext *s);
+void ff_er_add_slice(ERContext *s, int startx, int starty, int endx, int endy,
+                     int status);
+
+#endif /* AVCODEC_ERROR_RESILIENCE_H */