diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index b375720b1e..16c9fcfd15 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -689,6 +689,10 @@ OBJS-$(CONFIG_PCM_S32LE_DECODER)          += pcm.o
 OBJS-$(CONFIG_PCM_S32LE_ENCODER)          += pcm.o
 OBJS-$(CONFIG_PCM_S32LE_PLANAR_DECODER)   += pcm.o
 OBJS-$(CONFIG_PCM_S32LE_PLANAR_ENCODER)   += pcm.o
+OBJS-$(CONFIG_PCM_S64BE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S64BE_ENCODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S64LE_DECODER)          += pcm.o
+OBJS-$(CONFIG_PCM_S64LE_ENCODER)          += pcm.o
 OBJS-$(CONFIG_PCM_U8_DECODER)             += pcm.o
 OBJS-$(CONFIG_PCM_U8_ENCODER)             += pcm.o
 OBJS-$(CONFIG_PCM_U16BE_DECODER)          += pcm.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index a1ae61fece..4c6b94ecad 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -487,6 +487,8 @@ void avcodec_register_all(void)
     REGISTER_ENCDEC (PCM_S32BE,         pcm_s32be);
     REGISTER_ENCDEC (PCM_S32LE,         pcm_s32le);
     REGISTER_ENCDEC (PCM_S32LE_PLANAR,  pcm_s32le_planar);
+    REGISTER_ENCDEC (PCM_S64BE,         pcm_s64be);
+    REGISTER_ENCDEC (PCM_S64LE,         pcm_s64le);
     REGISTER_ENCDEC (PCM_U8,            pcm_u8);
     REGISTER_ENCDEC (PCM_U16BE,         pcm_u16be);
     REGISTER_ENCDEC (PCM_U16LE,         pcm_u16le);
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index b43ee5a00d..6ac66461ac 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -445,9 +445,9 @@ enum AVCodecID {
     AV_CODEC_ID_PCM_S24LE_PLANAR,
     AV_CODEC_ID_PCM_S32LE_PLANAR,
     AV_CODEC_ID_PCM_S16BE_PLANAR,
-    /* new PCM "codecs" should be added right below this line starting with
-     * an explicit value of for example 0x10800
-     */
+
+    AV_CODEC_ID_PCM_S64LE = 0x10800,
+    AV_CODEC_ID_PCM_S64BE,
 
     /* various ADPCM codecs */
     AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
diff --git a/libavcodec/codec_desc.c b/libavcodec/codec_desc.c
index dea17c93bb..24948caffe 100644
--- a/libavcodec/codec_desc.c
+++ b/libavcodec/codec_desc.c
@@ -1636,6 +1636,20 @@ static const AVCodecDescriptor codec_descriptors[] = {
         .long_name = NULL_IF_CONFIG_SMALL("PCM signed 32-bit big-endian"),
         .props     = AV_CODEC_PROP_LOSSLESS,
     },
+    {
+        .id        = AV_CODEC_ID_PCM_S64LE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s64le",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 64-bit little-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
+    {
+        .id        = AV_CODEC_ID_PCM_S64BE,
+        .type      = AVMEDIA_TYPE_AUDIO,
+        .name      = "pcm_s64be",
+        .long_name = NULL_IF_CONFIG_SMALL("PCM signed 64-bit big-endian"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
     {
         .id        = AV_CODEC_ID_PCM_U32LE,
         .type      = AVMEDIA_TYPE_AUDIO,
diff --git a/libavcodec/pcm.c b/libavcodec/pcm.c
index 9a13602543..2e8e8e73a6 100644
--- a/libavcodec/pcm.c
+++ b/libavcodec/pcm.c
@@ -145,6 +145,7 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
         ENCODE_PLANAR(uint8_t, byte, dst, n, 0, -128)
         break;
 #if HAVE_BIGENDIAN
+    case AV_CODEC_ID_PCM_S64LE:
     case AV_CODEC_ID_PCM_F64LE:
         ENCODE(int64_t, le64, samples, dst, n, 0, 0)
         break;
@@ -163,9 +164,11 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
         break;
     case AV_CODEC_ID_PCM_F64BE:
     case AV_CODEC_ID_PCM_F32BE:
+    case AV_CODEC_ID_PCM_S64BE:
     case AV_CODEC_ID_PCM_S32BE:
     case AV_CODEC_ID_PCM_S16BE:
 #else
+    case AV_CODEC_ID_PCM_S64BE:
     case AV_CODEC_ID_PCM_F64BE:
         ENCODE(int64_t, be64, samples, dst, n, 0, 0)
         break;
@@ -181,6 +184,7 @@ static int pcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
         break;
     case AV_CODEC_ID_PCM_F64LE:
     case AV_CODEC_ID_PCM_F32LE:
+    case AV_CODEC_ID_PCM_S64LE:
     case AV_CODEC_ID_PCM_S32LE:
     case AV_CODEC_ID_PCM_S16LE:
 #endif /* HAVE_BIGENDIAN */
@@ -390,6 +394,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
         }
         break;
 #if HAVE_BIGENDIAN
+    case AV_CODEC_ID_PCM_S64LE:
     case AV_CODEC_ID_PCM_F64LE:
         DECODE(64, le64, src, samples, n, 0, 0)
         break;
@@ -408,9 +413,11 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
         break;
     case AV_CODEC_ID_PCM_F64BE:
     case AV_CODEC_ID_PCM_F32BE:
+    case AV_CODEC_ID_PCM_S64BE:
     case AV_CODEC_ID_PCM_S32BE:
     case AV_CODEC_ID_PCM_S16BE:
 #else
+    case AV_CODEC_ID_PCM_S64BE:
     case AV_CODEC_ID_PCM_F64BE:
         DECODE(64, be64, src, samples, n, 0, 0)
         break;
@@ -426,6 +433,7 @@ static int pcm_decode_frame(AVCodecContext *avctx, void *data,
         break;
     case AV_CODEC_ID_PCM_F64LE:
     case AV_CODEC_ID_PCM_F32LE:
+    case AV_CODEC_ID_PCM_S64LE:
     case AV_CODEC_ID_PCM_S32LE:
     case AV_CODEC_ID_PCM_S16LE:
 #endif /* HAVE_BIGENDIAN */
@@ -568,4 +576,5 @@ PCM_CODEC  (PCM_U24LE,        AV_SAMPLE_FMT_S32, pcm_u24le,        "PCM unsigned
 PCM_CODEC  (PCM_U32BE,        AV_SAMPLE_FMT_S32, pcm_u32be,        "PCM unsigned 32-bit big-endian");
 PCM_CODEC  (PCM_U32LE,        AV_SAMPLE_FMT_S32, pcm_u32le,        "PCM unsigned 32-bit little-endian");
 PCM_DECODER(PCM_ZORK,         AV_SAMPLE_FMT_U8,  pcm_zork,         "PCM Zork");
-
+PCM_CODEC  (PCM_S64BE,        AV_SAMPLE_FMT_S64, pcm_s64be,        "PCM signed 64-bit big-endian");
+PCM_CODEC  (PCM_S64LE,        AV_SAMPLE_FMT_S64, pcm_s64le,        "PCM signed 64-bit little-endian");
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 6f4d553324..138125a2d9 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -3419,6 +3419,8 @@ int av_get_exact_bits_per_sample(enum AVCodecID codec_id)
         return 32;
     case AV_CODEC_ID_PCM_F64BE:
     case AV_CODEC_ID_PCM_F64LE:
+    case AV_CODEC_ID_PCM_S64BE:
+    case AV_CODEC_ID_PCM_S64LE:
         return 64;
     default:
         return 0;
@@ -3436,6 +3438,7 @@ enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be)
         [AV_SAMPLE_FMT_U8P ] = { AV_CODEC_ID_PCM_U8,    AV_CODEC_ID_PCM_U8    },
         [AV_SAMPLE_FMT_S16P] = { AV_CODEC_ID_PCM_S16LE, AV_CODEC_ID_PCM_S16BE },
         [AV_SAMPLE_FMT_S32P] = { AV_CODEC_ID_PCM_S32LE, AV_CODEC_ID_PCM_S32BE },
+        [AV_SAMPLE_FMT_S64P] = { AV_CODEC_ID_PCM_S64LE, AV_CODEC_ID_PCM_S64BE },
         [AV_SAMPLE_FMT_FLTP] = { AV_CODEC_ID_PCM_F32LE, AV_CODEC_ID_PCM_F32BE },
         [AV_SAMPLE_FMT_DBLP] = { AV_CODEC_ID_PCM_F64LE, AV_CODEC_ID_PCM_F64BE },
     };
diff --git a/libavcodec/version.h b/libavcodec/version.h
index cdfc4f9365..7ee5b5aa13 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -28,7 +28,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR  57
-#define LIBAVCODEC_VERSION_MINOR  53
+#define LIBAVCODEC_VERSION_MINOR  54
 #define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
diff --git a/libavformat/riff.c b/libavformat/riff.c
index 2d54922503..5cef7a9799 100644
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -436,6 +436,7 @@ const AVCodecTag ff_codec_wav_tags[] = {
     { AV_CODEC_ID_PCM_U8,          0x0001 },
     { AV_CODEC_ID_PCM_S24LE,       0x0001 },
     { AV_CODEC_ID_PCM_S32LE,       0x0001 },
+    { AV_CODEC_ID_PCM_S64LE,       0x0001 },
     { AV_CODEC_ID_ADPCM_MS,        0x0002 },
     { AV_CODEC_ID_PCM_F32LE,       0x0003 },
     /* must come after f32le in this list */
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 47cb7dd733..dd9df9294a 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -2991,6 +2991,8 @@ enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags)
                 return be ? AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
             case 4:
                 return be ? AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
+            case 8:
+                return be ? AV_CODEC_ID_PCM_S64BE : AV_CODEC_ID_PCM_S64LE;
             default:
                 return AV_CODEC_ID_NONE;
             }