Merge remote-tracking branch 'qatar/master'

[ffmpeg] / libavcodec / aacdec.c

diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
index a046d991e662baa831d883f64d3022eb6c70599e..3183ff237396c3437cc32a95f327e785f24d4455 100644 (file)
--- a/libavcodec/aacdec.c
+++ b/libavcodec/aacdec.c
@@ -98,6 +98,7 @@
 #include "aacsbr.h"
 #include "mpeg4audio.h"
 #include "aacadtsdec.h"
+#include "libavutil/intfloat.h"
 
 #include <assert.h>
 #include <errno.h>
@@ -108,11 +109,6 @@
 #   include "arm/aac.h"
 #endif
 
-union float754 {
-    float f;
-    uint32_t i;
-};
-
 static VLC vlc_scalefactors;
 static VLC vlc_spectral[11];
 
@@ -1023,7 +1019,7 @@ static inline float *VMUL4(float *dst, const float *v, unsigned idx,
 static inline float *VMUL2S(float *dst, const float *v, unsigned idx,
                             unsigned sign, const float *scale)
 {
-    union float754 s0, s1;
+    union av_intfloat32 s0, s1;
 
     s0.f = s1.f = *scale;
     s0.i ^= sign >> 1 << 31;
@@ -1041,8 +1037,8 @@ static inline float *VMUL4S(float *dst, const float *v, unsigned idx,
                             unsigned sign, const float *scale)
 {
     unsigned nz = idx >> 12;
-    union float754 s = { .f = *scale };
-    union float754 t;
+    union av_intfloat32 s = { .f = *scale };
+    union av_intfloat32 t;
 
     t.i = s.i ^ (sign & 1U<<31);
     *dst++ = v[idx    & 3] * t.f;
@@ -1291,7 +1287,7 @@ static int decode_spectrum_and_dequant(AACContext *ac, float coef[1024],
 
 static av_always_inline float flt16_round(float pf)
 {
-    union float754 tmp;
+    union av_intfloat32 tmp;
     tmp.f = pf;
     tmp.i = (tmp.i + 0x00008000U) & 0xFFFF0000U;
     return tmp.f;
@@ -1299,7 +1295,7 @@ static av_always_inline float flt16_round(float pf)
 
 static av_always_inline float flt16_even(float pf)
 {
-    union float754 tmp;
+    union av_intfloat32 tmp;
     tmp.f = pf;
     tmp.i = (tmp.i + 0x00007FFFU + (tmp.i & 0x00010000U >> 16)) & 0xFFFF0000U;
     return tmp.f;
@@ -1307,7 +1303,7 @@ static av_always_inline float flt16_even(float pf)
 
 static av_always_inline float flt16_trunc(float pf)
 {
-    union float754 pun;
+    union av_intfloat32 pun;
     pun.f = pf;
     pun.i &= 0xFFFF0000U;
     return pun.f;
@@ -2125,13 +2121,14 @@ static int parse_adts_frame_header(AACContext *ac, GetBitContext *gb)
         }
         if (!ac->avctx->sample_rate)
             ac->avctx->sample_rate = hdr_info.sample_rate;
-        if (hdr_info.num_aac_frames == 1) {
-            if (!hdr_info.crc_absent)
-                skip_bits(gb, 16);
-        } else {
+        if (!ac->warned_num_aac_frames && hdr_info.num_aac_frames != 1) {
+            // This is 2 for "VLB " audio in NSV files.
+            // See samples/nsv/vlb_audio.
             av_log_missing_feature(ac->avctx, "More than one AAC RDB per ADTS frame is", 0);
-            return -1;
+            ac->warned_num_aac_frames = 1;
         }
+        if (!hdr_info.crc_absent)
+            skip_bits(gb, 16);
     }
     return size;
 }