diff --git a/TOOLS/old-makefile b/TOOLS/old-makefile
index cf51483dd5..3865666e02 100644
--- a/TOOLS/old-makefile
+++ b/TOOLS/old-makefile
@@ -224,7 +224,6 @@ SOURCES = audio/audio.c \
           sub/osd.c \
           sub/sd_lavc.c \
           sub/sd_lavc_conv.c \
-          sub/sd_lavf_srt.c \
           sub/sd_microdvd.c \
           sub/sd_srt.c \
           ta/ta.c \
diff --git a/sub/dec_sub.c b/sub/dec_sub.c
index dffec03983..3a2136f302 100644
--- a/sub/dec_sub.c
+++ b/sub/dec_sub.c
@@ -36,7 +36,6 @@ extern const struct sd_functions sd_ass;
 extern const struct sd_functions sd_lavc;
 extern const struct sd_functions sd_srt;
 extern const struct sd_functions sd_microdvd;
-extern const struct sd_functions sd_lavf_srt;
 extern const struct sd_functions sd_lavc_conv;
 
 static const struct sd_functions *const sd_list[] = {
@@ -45,7 +44,6 @@ static const struct sd_functions *const sd_list[] = {
 #endif
     &sd_lavc,
     &sd_srt,
-    &sd_lavf_srt,
     &sd_microdvd,
     &sd_lavc_conv,
     NULL
diff --git a/sub/sd_lavf_srt.c b/sub/sd_lavf_srt.c
deleted file mode 100644
index 8f1f7de78b..0000000000
--- a/sub/sd_lavf_srt.c
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * This file is part of mpv.
- *
- * SRT timestamp parsing code lifted from FFmpeg srtdec.c (LGPL).
- *
- * mpv is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * mpv 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with mpv.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-#include <inttypes.h>
-#include <assert.h>
-
-#include "misc/bstr.h"
-#include "sd.h"
-
-/*
- * Background:
- *
- * Libav's .srt demuxer outputs packets that contain parts of the subtitle
- * event header. Also, the packet duration is not set (they don't parse it
- * on the demuxer side). As a result, the srt demuxer is useless.
- *
- * However, we can fix it by parsing the header, which spares us from writing
- * a full SRT demuxer.
- *
- * Newer versions of FFmpeg do not have this problem. To avoid compatibility
- * problems, they changed the codec name from "srt" to "subrip".
- *
- * Summary: this is a hack for broken SRT stuff in Libav.
- *
- */
-
-static bool supports_format(const char *format)
-{
-    return format && strcmp(format, "srt") == 0;
-}
-
-static int init(struct sd *sd)
-{
-    sd->output_codec = "subrip";
-    return 0;
-}
-
-static bool parse_pts(bstr header, double *duration)
-{
-    char buf[200];
-    snprintf(buf, sizeof(buf), "%.*s", BSTR_P(header));
-    int hh1, mm1, ss1, ms1;
-    int hh2, mm2, ss2, ms2;
-    if (sscanf(buf, "%d:%2d:%2d%*1[,.]%3d --> %d:%2d:%2d%*1[,.]%3d",
-               &hh1, &mm1, &ss1, &ms1, &hh2, &mm2, &ss2, &ms2) >= 8)
-    {
-        int64_t start = (hh1*3600LL + mm1*60LL + ss1) * 1000LL + ms1;
-        int64_t end   = (hh2*3600LL + mm2*60LL + ss2) * 1000LL + ms2;
-        *duration = (end - start) / 1000.0;
-        return true;
-    }
-    return false;
-}
-
-static void decode(struct sd *sd, struct demux_packet *packet)
-{
-    bstr data = {packet->buffer, packet->len};
-    // Remove the broken header. It's usually on the second or first line.
-    bstr left = data;
-    while (left.len) {
-        bstr line = bstr_getline(left, &left);
-        if (parse_pts(line, &packet->duration)) {
-            data = left;
-            break;
-        }
-    }
-    sd_conv_add_packet(sd, data.start, data.len, packet->pts, packet->duration);
-}
-
-const struct sd_functions sd_lavf_srt = {
-    .name = "lavf_srt",
-    .supports_format = supports_format,
-    .init = init,
-    .decode = decode,
-    .get_converted = sd_conv_def_get_converted,
-    .reset = sd_conv_def_reset,
-};
diff --git a/wscript_build.py b/wscript_build.py
index 7ac33c8764..148f59d5d9 100644
--- a/wscript_build.py
+++ b/wscript_build.py
@@ -260,7 +260,6 @@ def build(ctx):
         ( "sub/sd_ass.c",                        "libass" ),
         ( "sub/sd_lavc.c" ),
         ( "sub/sd_lavc_conv.c" ),
-        ( "sub/sd_lavf_srt.c" ),
         ( "sub/sd_microdvd.c" ),
         ( "sub/sd_srt.c" ),