mpegvideo: move mpegvideo formats-related defines to mpegutils.h

1 files changed, 111 insertions, 0 deletions

diff --git a/libavcodec/mpegutils.h b/libavcodec/mpegutils.h
new file mode 100644
index 0000000000..05a5fc202c
--- /dev/null
+++ b/libavcodec/mpegutils.h
@@ -0,0 +1,111 @@
+/*
+ * Mpeg video formats-related defines and utility functions
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MPEGUTILS_H
+#define AVCODEC_MPEGUTILS_H
+
+#include "version.h"
+
+/* picture type */
+#define PICT_TOP_FIELD     1
+#define PICT_BOTTOM_FIELD  2
+#define PICT_FRAME         3
+
+/**
+ * Value of Picture.reference when Picture is not a reference picture, but
+ * is held for delayed output.
+ */
+#define DELAYED_PIC_REF 4
+
+
+/* MB types */
+#if !FF_API_MB_TYPE
+#define MB_TYPE_INTRA4x4   (1 <<  0)
+#define MB_TYPE_INTRA16x16 (1 <<  1) // FIXME H.264-specific
+#define MB_TYPE_INTRA_PCM  (1 <<  2) // FIXME H.264-specific
+#define MB_TYPE_16x16      (1 <<  3)
+#define MB_TYPE_16x8       (1 <<  4)
+#define MB_TYPE_8x16       (1 <<  5)
+#define MB_TYPE_8x8        (1 <<  6)
+#define MB_TYPE_INTERLACED (1 <<  7)
+#define MB_TYPE_DIRECT2    (1 <<  8) // FIXME
+#define MB_TYPE_ACPRED     (1 <<  9)
+#define MB_TYPE_GMC        (1 << 10)
+#define MB_TYPE_SKIP       (1 << 11)
+#define MB_TYPE_P0L0       (1 << 12)
+#define MB_TYPE_P1L0       (1 << 13)
+#define MB_TYPE_P0L1       (1 << 14)
+#define MB_TYPE_P1L1       (1 << 15)
+#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
+#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
+#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
+#define MB_TYPE_QUANT      (1 << 16)
+#define MB_TYPE_CBP        (1 << 17)
+#endif
+
+#define MB_TYPE_INTRA    MB_TYPE_INTRA4x4 // default mb_type if there is just one type
+
+#define IS_INTRA4x4(a)   ((a) & MB_TYPE_INTRA4x4)
+#define IS_INTRA16x16(a) ((a) & MB_TYPE_INTRA16x16)
+#define IS_PCM(a)        ((a) & MB_TYPE_INTRA_PCM)
+#define IS_INTRA(a)      ((a) & 7)
+#define IS_INTER(a)      ((a) & (MB_TYPE_16x16 | MB_TYPE_16x8 | \
+                                 MB_TYPE_8x16  | MB_TYPE_8x8))
+#define IS_SKIP(a)       ((a) & MB_TYPE_SKIP)
+#define IS_INTRA_PCM(a)  ((a) & MB_TYPE_INTRA_PCM)
+#define IS_INTERLACED(a) ((a) & MB_TYPE_INTERLACED)
+#define IS_DIRECT(a)     ((a) & MB_TYPE_DIRECT2)
+#define IS_GMC(a)        ((a) & MB_TYPE_GMC)
+#define IS_16X16(a)      ((a) & MB_TYPE_16x16)
+#define IS_16X8(a)       ((a) & MB_TYPE_16x8)
+#define IS_8X16(a)       ((a) & MB_TYPE_8x16)
+#define IS_8X8(a)        ((a) & MB_TYPE_8x8)
+#define IS_SUB_8X8(a)    ((a) & MB_TYPE_16x16) // note reused
+#define IS_SUB_8X4(a)    ((a) & MB_TYPE_16x8)  // note reused
+#define IS_SUB_4X8(a)    ((a) & MB_TYPE_8x16)  // note reused
+#define IS_SUB_4X4(a)    ((a) & MB_TYPE_8x8)   // note reused
+#define IS_ACPRED(a)     ((a) & MB_TYPE_ACPRED)
+#define IS_QUANT(a)      ((a) & MB_TYPE_QUANT)
+#define IS_DIR(a, part, list) ((a) & (MB_TYPE_P0L0 << ((part) + 2 * (list))))
+
+// does this mb use listX, note does not work if subMBs
+#define USES_LIST(a, list) ((a) & ((MB_TYPE_P0L0 | MB_TYPE_P1L0) << (2 * (list))))
+
+#define HAS_CBP(a)       ((a) & MB_TYPE_CBP)
+
+/* MB types for encoding */
+#define CANDIDATE_MB_TYPE_INTRA      (1 <<  0)
+#define CANDIDATE_MB_TYPE_INTER      (1 <<  1)
+#define CANDIDATE_MB_TYPE_INTER4V    (1 <<  2)
+#define CANDIDATE_MB_TYPE_SKIPPED    (1 <<  3)
+
+#define CANDIDATE_MB_TYPE_DIRECT     (1 <<  4)
+#define CANDIDATE_MB_TYPE_FORWARD    (1 <<  5)
+#define CANDIDATE_MB_TYPE_BACKWARD   (1 <<  6)
+#define CANDIDATE_MB_TYPE_BIDIR      (1 <<  7)
+
+#define CANDIDATE_MB_TYPE_INTER_I    (1 <<  8)
+#define CANDIDATE_MB_TYPE_FORWARD_I  (1 <<  9)
+#define CANDIDATE_MB_TYPE_BACKWARD_I (1 << 10)
+#define CANDIDATE_MB_TYPE_BIDIR_I    (1 << 11)
+
+#define CANDIDATE_MB_TYPE_DIRECT0    (1 << 12)
+
+#endif /* AVCODEC_PICTTYPE_H */