X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fac3enc.c;h=ddbc7b247cce2e2c240c84af46f7b98a3a8474e6;hb=ffae62d96c75d4a476eb3890357c4f3e4f8bd4f5;hp=e7e18af92d5b75813552f0a3a616a3b763b723e0;hpb=fda424b300c1a0b991296aa585691609d01196bd;p=ffmpeg

diff --git a/libavcodec/ac3enc.c b/libavcodec/ac3enc.c
index e7e18af92d5..ddbc7b247cc 100644
--- a/libavcodec/ac3enc.c
+++ b/libavcodec/ac3enc.c
@@ -63,7 +63,7 @@ static const float surmixlev_options[SURMIXLEV_NUM_OPTIONS] = {
 
 #define EXTMIXLEV_NUM_OPTIONS 8
 static const float extmixlev_options[EXTMIXLEV_NUM_OPTIONS] = {
-    LEVEL_PLUS_3DB,  LEVEL_PLUS_1POINT5DB,  LEVEL_ONE,       LEVEL_MINUS_4POINT5DB,
+    LEVEL_PLUS_3DB,  LEVEL_PLUS_1POINT5DB,  LEVEL_ONE,       LEVEL_MINUS_1POINT5DB,
     LEVEL_MINUS_3DB, LEVEL_MINUS_4POINT5DB, LEVEL_MINUS_6DB, LEVEL_ZERO
 };
 
@@ -652,7 +652,7 @@ void ff_ac3_process_exponents(AC3EncodeContext *s)
  */
 static void count_frame_bits_fixed(AC3EncodeContext *s)
 {
-    static const int frame_bits_inc[8] = { 0, 0, 2, 2, 2, 4, 2, 4 };
+    static const uint8_t frame_bits_inc[8] = { 0, 0, 2, 2, 2, 4, 2, 4 };
     int blk;
     int frame_bits;
 
@@ -1065,7 +1065,7 @@ static int bit_alloc(AC3EncodeContext *s, int snr_offset)
 {
     int blk, ch;
 
-    snr_offset = (snr_offset - 240) << 2;
+    snr_offset = (snr_offset - 240) * 4;
 
     reset_block_bap(s);
     for (blk = 0; blk < s->num_blocks; blk++) {
@@ -1993,12 +1993,11 @@ int ff_ac3_validate_metadata(AC3EncodeContext *s)
     /* set bitstream id for alternate bitstream syntax */
     if (!s->eac3 && (opt->extended_bsi_1 || opt->extended_bsi_2)) {
         if (s->bitstream_id > 8 && s->bitstream_id < 11) {
-            static int warn_once = 1;
-            if (warn_once) {
+            if (!s->warned_alternate_bitstream) {
                 av_log(avctx, AV_LOG_WARNING, "alternate bitstream syntax is "
                        "not compatible with reduced samplerates. writing of "
                        "extended bitstream information will be disabled.\n");
-                warn_once = 0;
+                s->warned_alternate_bitstream = 1;
             }
         } else {
             s->bitstream_id = 6;
@@ -2051,7 +2050,8 @@ av_cold int ff_ac3_encode_close(AVCodecContext *avctx)
         av_freep(&block->cpl_coord_mant);
     }
 
-    s->mdct_end(s);
+    if (s->mdct_end)
+        s->mdct_end(s);
 
     return 0;
 }
@@ -2433,7 +2433,7 @@ av_cold int ff_ac3_encode_init(AVCodecContext *avctx)
 
     ret = validate_options(s);
     if (ret)
-        return ret;
+        goto init_fail;
 
     avctx->frame_size = AC3_BLOCK_SIZE * s->num_blocks;
     avctx->initial_padding = AC3_BLOCK_SIZE;