avcodec/ac3: Move non-(de|en)coder-only parts out of ac3.h

Move AC3HeaderInfo into ac3_parser_internal.h and the rest
into a new header ac3defs.h.

This also breaks an include cycle of ac3.h and ac3tab.h
(the latter now only needs ac3defs.h).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 40 insertions, 1 deletions

diff --git a/libavcodec/ac3_parser_internal.h b/libavcodec/ac3_parser_internal.h
index 3648802a73..dd57dc95a6 100644
--- a/libavcodec/ac3_parser_internal.h
+++ b/libavcodec/ac3_parser_internal.h
@@ -21,10 +21,49 @@
 #ifndef AVCODEC_AC3_PARSER_INTERNAL_H
 #define AVCODEC_AC3_PARSER_INTERNAL_H
 
-#include "ac3.h"
+#include <stddef.h>
+#include <stdint.h>
+
+#include "ac3defs.h"
 #include "get_bits.h"
 
 /**
+ * @struct AC3HeaderInfo
+ * Coded AC-3 header values up to the lfeon element, plus derived values.
+ */
+typedef struct AC3HeaderInfo {
+    /** @name Coded elements
+     * @{
+     */
+    uint16_t sync_word;
+    uint16_t crc1;
+    uint8_t sr_code;
+    uint8_t bitstream_id;
+    uint8_t bitstream_mode;
+    uint8_t channel_mode;
+    uint8_t lfe_on;
+    uint8_t frame_type;
+    int substreamid;                        ///< substream identification
+    int center_mix_level;                   ///< Center mix level index
+    int surround_mix_level;                 ///< Surround mix level index
+    uint16_t channel_map;
+    int num_blocks;                         ///< number of audio blocks
+    int dolby_surround_mode;
+    /** @} */
+
+    /** @name Derived values
+     * @{
+     */
+    uint8_t sr_shift;
+    uint16_t sample_rate;
+    uint32_t bit_rate;
+    uint8_t channels;
+    uint16_t frame_size;
+    uint64_t channel_layout;
+    /** @} */
+} AC3HeaderInfo;
+
+/**
  * Parse AC-3 frame header.
  * Parse the header up to the lfeon element, which is the first 52 or 54 bits
  * depending on the audio coding mode.