diff --git a/cmdutils.c b/cmdutils.c
index 7ec5db2203..eeb5e39099 100644
--- a/cmdutils.c
+++ b/cmdutils.c
@@ -674,14 +674,16 @@ void show_banner(int argc, char **argv, const OptionDef *options)
     print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
 }
 
-int opt_version(const char *opt, const char *arg) {
+int show_version(const char *opt, const char *arg)
+{
     av_log_set_callback(log_callback_help);
     print_program_info (0           , AV_LOG_INFO);
     print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
+
     return 0;
 }
 
-int opt_license(const char *opt, const char *arg)
+int show_license(const char *opt, const char *arg)
 {
     printf(
 #if CONFIG_NONFREE
@@ -748,10 +750,11 @@ int opt_license(const char *opt, const char *arg)
     program_name, program_name, program_name
 #endif
     );
+
     return 0;
 }
 
-int opt_formats(const char *opt, const char *arg)
+int show_formats(const char *opt, const char *arg)
 {
     AVInputFormat *ifmt  = NULL;
     AVOutputFormat *ofmt = NULL;
@@ -925,7 +928,7 @@ int show_encoders(const char *opt, const char *arg)
     return 0;
 }
 
-int opt_bsfs(const char *opt, const char *arg)
+int show_bsfs(const char *opt, const char *arg)
 {
     AVBitStreamFilter *bsf = NULL;
 
@@ -936,7 +939,7 @@ int opt_bsfs(const char *opt, const char *arg)
     return 0;
 }
 
-int opt_protocols(const char *opt, const char *arg)
+int show_protocols(const char *opt, const char *arg)
 {
     void *opaque = NULL;
     const char *name;
@@ -951,7 +954,7 @@ int opt_protocols(const char *opt, const char *arg)
     return 0;
 }
 
-int opt_filters(const char *opt, const char *arg)
+int show_filters(const char *opt, const char *arg)
 {
     AVFilter av_unused(**filter) = NULL;
     char descr[64], *descr_cur;
@@ -983,7 +986,7 @@ int opt_filters(const char *opt, const char *arg)
     return 0;
 }
 
-int opt_pix_fmts(const char *opt, const char *arg)
+int show_pix_fmts(const char *opt, const char *arg)
 {
     enum PixelFormat pix_fmt;
 
diff --git a/cmdutils.h b/cmdutils.h
index d22dcbf773..f50eb173c0 100644
--- a/cmdutils.h
+++ b/cmdutils.h
@@ -277,21 +277,21 @@ void show_banner(int argc, char **argv, const OptionDef *options);
  * libraries.
  * This option processing function does not utilize the arguments.
  */
-int opt_version(const char *opt, const char *arg);
+int show_version(const char *opt, const char *arg);
 
 /**
  * Print the license of the program to stdout. The license depends on
  * the license of the libraries compiled into the program.
  * This option processing function does not utilize the arguments.
  */
-int opt_license(const char *opt, const char *arg);
+int show_license(const char *opt, const char *arg);
 
 /**
  * Print a listing containing all the formats supported by the
  * program.
  * This option processing function does not utilize the arguments.
  */
-int opt_formats(const char *opt, const char *arg);
+int show_formats(const char *opt, const char *arg);
 
 /**
  * Print a listing containing all the codecs supported by the
@@ -317,28 +317,28 @@ int show_encoders(const char *opt, const char *arg);
  * program.
  * This option processing function does not utilize the arguments.
  */
-int opt_filters(const char *opt, const char *arg);
+int show_filters(const char *opt, const char *arg);
 
 /**
  * Print a listing containing all the bit stream filters supported by the
  * program.
  * This option processing function does not utilize the arguments.
  */
-int opt_bsfs(const char *opt, const char *arg);
+int show_bsfs(const char *opt, const char *arg);
 
 /**
  * Print a listing containing all the protocols supported by the
  * program.
  * This option processing function does not utilize the arguments.
  */
-int opt_protocols(const char *opt, const char *arg);
+int show_protocols(const char *opt, const char *arg);
 
 /**
  * Print a listing containing all the pixel formats supported by the
  * program.
  * This option processing function does not utilize the arguments.
  */
-int opt_pix_fmts(const char *opt, const char *arg);
+int show_pix_fmts(const char *opt, const char *arg);
 
 /**
  * Print a listing containing all the sample formats supported by the
diff --git a/cmdutils_common_opts.h b/cmdutils_common_opts.h
index 3fb74d6839..f3bb415adf 100644
--- a/cmdutils_common_opts.h
+++ b/cmdutils_common_opts.h
@@ -1,22 +1,22 @@
-    { "L", OPT_EXIT, {(void*)opt_license}, "show license" },
-    { "h", OPT_EXIT, {(void*)opt_help}, "show help" },
-    { "?", OPT_EXIT, {(void*)opt_help}, "show help" },
-    { "help", OPT_EXIT, {(void*)opt_help}, "show help" },
-    { "-help", OPT_EXIT, {(void*)opt_help}, "show help" },
-    { "version", OPT_EXIT, {(void*)opt_version}, "show version" },
-    { "formats"  , OPT_EXIT, {(void*)opt_formats  }, "show available formats" },
-    { "codecs"   , OPT_EXIT, {(void*)show_codecs   }, "show available codecs" },
-    { "decoders" , OPT_EXIT, {(void*)show_decoders }, "show available decoders" },
-    { "encoders" , OPT_EXIT, {(void*)show_encoders }, "show available encoders" },
-    { "bsfs"     , OPT_EXIT, {(void*)opt_bsfs     }, "show available bit stream filters" },
-    { "protocols", OPT_EXIT, {(void*)opt_protocols}, "show available protocols" },
-    { "filters",   OPT_EXIT, {(void*)opt_filters  }, "show available filters" },
-    { "pix_fmts" , OPT_EXIT, {(void*)opt_pix_fmts }, "show available pixel formats" },
+    { "L"          , OPT_EXIT, {.func_arg = show_license},      "show license" },
+    { "h"          , OPT_EXIT, {.func_arg = show_help},         "show help" },
+    { "?"          , OPT_EXIT, {.func_arg = show_help},         "show help" },
+    { "help"       , OPT_EXIT, {.func_arg = show_help},         "show help" },
+    { "-help"      , OPT_EXIT, {.func_arg = show_help},         "show help" },
+    { "version"    , OPT_EXIT, {.func_arg = show_version},      "show version" },
+    { "formats"    , OPT_EXIT, {.func_arg = show_formats  },    "show available formats" },
+    { "codecs"     , OPT_EXIT, {.func_arg = show_codecs   },    "show available codecs" },
+    { "decoders"   , OPT_EXIT, {.func_arg = show_decoders },    "show available decoders" },
+    { "encoders"   , OPT_EXIT, {.func_arg = show_encoders },    "show available encoders" },
+    { "bsfs"       , OPT_EXIT, {.func_arg = show_bsfs     },    "show available bit stream filters" },
+    { "protocols"  , OPT_EXIT, {.func_arg = show_protocols},    "show available protocols" },
+    { "filters"    , OPT_EXIT, {.func_arg = show_filters  },    "show available filters" },
+    { "pix_fmts"   , OPT_EXIT, {.func_arg = show_pix_fmts },    "show available pixel formats" },
     { "sample_fmts", OPT_EXIT, {.func_arg = show_sample_fmts }, "show available audio sample formats" },
-    { "loglevel", HAS_ARG, {(void*)opt_loglevel}, "set libav* logging level", "loglevel" },
-    { "v", HAS_ARG, {(void*)opt_loglevel}, "set libav* logging level", "loglevel" },
-    { "debug", HAS_ARG, {(void*)opt_codec_debug}, "set debug flags", "flags" },
-    { "fdebug", HAS_ARG, {(void*)opt_codec_debug}, "set debug flags", "flags" },
-    { "report", 0, {(void*)opt_report}, "generate a report" },
-    { "max_alloc", HAS_ARG, {(void*)opt_max_alloc}, "set maximum size of a single allocated block", "bytes" },
-    { "cpuflags", HAS_ARG | OPT_EXPERT, {(void*)opt_cpuflags}, "force specific cpu flags", "flags" },
+    { "loglevel"   , HAS_ARG,  {.func_arg = opt_loglevel},      "set libav* logging level", "loglevel" },
+    { "v",           HAS_ARG,  {.func_arg = opt_loglevel},      "set libav* logging level", "loglevel" },
+    { "debug"      , HAS_ARG,  {.func_arg = opt_codec_debug},   "set debug flags", "flags" },
+    { "fdebug"     , HAS_ARG,  {.func_arg = opt_codec_debug},   "set debug flags", "flags" },
+    { "report"     , 0,        {(void*)opt_report}, "generate a report" },
+    { "max_alloc"  , HAS_ARG,  {.func_arg = opt_max_alloc},     "set maximum size of a single allocated block", "bytes" },
+    { "cpuflags"   , HAS_ARG | OPT_EXPERT, {.func_arg = opt_cpuflags}, "force specific cpu flags", "flags" },
diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index 39a19e8a60..0e174637c7 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -167,31 +167,36 @@ static int opt_video_standard(const char *opt, const char *arg)
     return opt_default("standard", arg);
 }
 
-static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
+static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     audio_codec_name = arg;
     return parse_option(o, "codec:a", arg, options);
 }
 
-static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
+static int opt_video_codec(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     video_codec_name = arg;
     return parse_option(o, "codec:v", arg, options);
 }
 
-static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
+static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     subtitle_codec_name = arg;
     return parse_option(o, "codec:s", arg, options);
 }
 
-static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
+static int opt_data_codec(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     return parse_option(o, "codec:d", arg, options);
 }
 
-static int opt_map(OptionsContext *o, const char *opt, const char *arg)
+static int opt_map(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     StreamMap *m = NULL;
     int i, negative = 0, file_idx;
     int sync_file_idx = -1, sync_stream_idx = 0;
@@ -286,8 +291,9 @@ static int opt_map(OptionsContext *o, const char *opt, const char *arg)
     return 0;
 }
 
-static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
+static int opt_attach(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
                                 &o->nb_attachments, o->nb_attachments + 1);
     o->attachments[o->nb_attachments - 1] = arg;
@@ -486,12 +492,22 @@ static int opt_recording_timestamp(OptionsContext *o, const char *opt, const cha
 
 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
 {
+    const AVCodecDescriptor *desc;
     const char *codec_string = encoder ? "encoder" : "decoder";
     AVCodec *codec;
 
     codec = encoder ?
         avcodec_find_encoder_by_name(name) :
         avcodec_find_decoder_by_name(name);
+
+    if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
+        codec = encoder ? avcodec_find_encoder(desc->id) :
+                          avcodec_find_decoder(desc->id);
+        if (codec)
+            av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
+                   codec_string, codec->name, desc->name);
+    }
+
     if (!codec) {
         av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
         exit_program(1);
@@ -661,8 +677,9 @@ static void dump_attachment(AVStream *st, const char *filename)
     avio_close(out);
 }
 
-static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
+static int opt_input_file(void *optctx, const char *opt, const char *filename)
 {
+    OptionsContext *o = optctx;
     AVFormatContext *ic;
     AVInputFormat *file_iformat = NULL;
     int err, i, ret;
@@ -1232,8 +1249,9 @@ static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc,
 }
 
 /* arg format is "output-stream-index:streamid-value". */
-static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
+static int opt_streamid(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     int idx;
     char *p;
     char idx_str[16];
@@ -1748,8 +1766,9 @@ static int opt_pass(const char *opt, const char *arg)
 }
 
 
-static int opt_target(OptionsContext *o, const char *opt, const char *arg)
+static int opt_target(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
     static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
 
@@ -1904,18 +1923,21 @@ static int opt_vstats(const char *opt, const char *arg)
     return opt_vstats_file(opt, filename);
 }
 
-static int opt_video_frames(OptionsContext *o, const char *opt, const char *arg)
+static int opt_video_frames(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     return parse_option(o, "frames:v", arg, options);
 }
 
-static int opt_audio_frames(OptionsContext *o, const char *opt, const char *arg)
+static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     return parse_option(o, "frames:a", arg, options);
 }
 
-static int opt_data_frames(OptionsContext *o, const char *opt, const char *arg)
+static int opt_data_frames(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     return parse_option(o, "frames:d", arg, options);
 }
 
@@ -2012,15 +2034,18 @@ static int opt_profile(OptionsContext *o, const char *opt, const char *arg)
         return parse_option(o, "profile:v", arg, options);
     }
     return opt_default(opt, arg);
+
 }
 
-static int opt_video_filters(OptionsContext *o, const char *opt, const char *arg)
+static int opt_video_filters(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     return parse_option(o, "filter:v", arg, options);
 }
 
-static int opt_audio_filters(OptionsContext *o, const char *opt, const char *arg)
+static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     return parse_option(o, "filter:a", arg, options);
 }
 
@@ -2053,8 +2078,9 @@ static int opt_timecode(OptionsContext *o, const char *opt, const char *arg)
     return ret;
 }
 
-static int opt_channel_layout(OptionsContext *o, const char *opt, const char *arg)
+static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     char layout_str[32];
     char *stream_str;
     char *ac_str;
@@ -2088,8 +2114,9 @@ static int opt_channel_layout(OptionsContext *o, const char *opt, const char *ar
     return ret;
 }
 
-static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
+static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
 {
+    OptionsContext *o = optctx;
     return parse_option(o, "q:a", arg, options);
 }
 
@@ -2104,7 +2131,7 @@ static int opt_filter_complex(const char *opt, const char *arg)
     return 0;
 }
 
-static int opt_help(const char *opt, const char *arg)
+static int show_help(const char *opt, const char *arg)
 {
     int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
     av_log_set_callback(log_callback_help);
@@ -2138,7 +2165,6 @@ static int opt_help(const char *opt, const char *arg)
     show_help_children(sws_get_class(), flags);
     show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
     show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
-
     return 0;
 }
 
@@ -2172,14 +2198,14 @@ const OptionDef options[] = {
     /* main options */
 #include "cmdutils_common_opts.h"
     { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
-    { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
-    { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
-    { "n", OPT_BOOL, {(void*)&no_file_overwrite}, "do not overwrite output files" },
+    { "i", HAS_ARG | OPT_FUNC2, {.func2_arg = opt_input_file}, "input file name", "filename" },
+    { "y", OPT_BOOL, {&file_overwrite}, "overwrite output files" },
+    { "n", OPT_BOOL, {&no_file_overwrite}, "do not overwrite output files" },
     { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
     { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
     { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(presets)}, "preset name", "preset" },
-    { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map}, "set input stream mapping", "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
-    { "map_channel", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map_channel}, "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
+    { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {.func2_arg = opt_map}, "set input stream mapping", "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
+    { "map_channel", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {.func2_arg = opt_map_channel}, "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
     { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata_map)}, "set metadata information of outfile from infile",
       "outfile[,metadata]:infile[,metadata]" },
     { "map_chapters",  OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(chapters_input_file)},  "set chapters mapping", "input_file_index" },
@@ -2190,8 +2216,8 @@ const OptionDef options[] = {
     { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(ts_scale)}, "set the input ts scale", "scale" },
     { "timestamp", HAS_ARG | OPT_FUNC2, {(void*)opt_recording_timestamp}, "set the recording timestamp ('now' to set the current time)", "time" },
     { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata)}, "add metadata", "string=string" },
-    { "dframes", HAS_ARG | OPT_FUNC2, {(void*)opt_data_frames}, "set the number of data frames to record", "number" },
-    { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
+    { "dframes", HAS_ARG | OPT_FUNC2, {.func2_arg = opt_data_frames}, "set the number of data frames to record", "number" },
+    { "benchmark", OPT_BOOL | OPT_EXPERT, {&do_benchmark},
       "add timings for benchmarking" },
     { "benchmark_all", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark_all},
       "add timings for each task" },
@@ -2199,22 +2225,22 @@ const OptionDef options[] = {
       "write program-readable progress information", "url" },
     { "stdin", OPT_BOOL | OPT_EXPERT, {(void*)&stdin_interaction},
       "enable or disable interaction on standard input" },
-    { "timelimit", HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
-    { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
+    { "timelimit", HAS_ARG, {.func_arg = opt_timelimit}, "set max runtime in seconds", "limit" },
+    { "dump", OPT_BOOL | OPT_EXPERT, {&do_pkt_dump},
       "dump each input packet" },
-    { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
+    { "hex", OPT_BOOL | OPT_EXPERT, {&do_hex_dump},
       "when dumping packets, also dump the payload" },
     { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(rate_emu)}, "read input at native frame rate", "" },
-    { "target", HAS_ARG | OPT_FUNC2, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
-    { "vsync", HAS_ARG | OPT_EXPERT, {(void*)opt_vsync}, "video sync method", "" },
-    { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
-    { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
-    { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)&copy_ts}, "copy timestamps" },
-    { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&copy_tb}, "copy input stream time base when stream copying", "mode" },
+    { "target", HAS_ARG | OPT_FUNC2, {.func2_arg = opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
+    { "vsync", HAS_ARG | OPT_EXPERT, {opt_vsync}, "video sync method", "" },
+    { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {&audio_sync_method}, "audio sync method", "" },
+    { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {&audio_drift_threshold}, "audio drift threshold", "threshold" },
+    { "copyts", OPT_BOOL | OPT_EXPERT, {&copy_ts}, "copy timestamps" },
+    { "copytb", HAS_ARG | OPT_BOOL | OPT_EXPERT, {.func_arg = &copy_tb}, "copy input stream time base when stream copying", "mode" },
     { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(shortest)}, "finish encoding within shortest input" },
-    { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
-    { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_error_threshold}, "timestamp error delta threshold", "threshold" },
-    { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
+    { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
+    { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {&dts_error_threshold}, "timestamp error delta threshold", "threshold" },
+    { "xerror", OPT_BOOL, {&exit_on_error}, "exit on error", "error" },
     { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC, {.off = OFFSET(copy_initial_nonkeyframes)}, "copy initial non-keyframes" },
     { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, {.off = OFFSET(max_frames)}, "set the number of frames to record", "number" },
     { "tag",   OPT_STRING | HAS_ARG | OPT_SPEC, {.off = OFFSET(codec_tags)}, "force codec tag/fourcc", "fourcc/tag" },
@@ -2222,14 +2248,14 @@ const OptionDef options[] = {
     { "qscale", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_qscale}, "use fixed quality scale (VBR)", "q" },
     { "profile", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_profile}, "set profile", "profile" },
     { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(filters)}, "set stream filterchain", "filter_list" },
-    { "filter_complex", HAS_ARG | OPT_EXPERT, {(void*)opt_filter_complex}, "create a complex filtergraph", "graph_description" },
+    { "filter_complex", HAS_ARG | OPT_EXPERT, {.func_arg = opt_filter_complex}, "create a complex filtergraph", "graph_description" },
     { "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
-    { "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
+    { "attach", HAS_ARG | OPT_FUNC2, {.func2_arg = opt_attach}, "add an attachment to the output file", "filename" },
     { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
     { "debug_ts", OPT_BOOL | OPT_EXPERT, {&debug_ts}, "print timestamp debugging info" },
 
     /* video options */
-    { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
+    { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {.func2_arg = opt_video_frames}, "set the number of video frames to record", "number" },
     { "r", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_rates)}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
     { "s", HAS_ARG | OPT_VIDEO | OPT_SUBTITLE | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_sizes)}, "set frame size (WxH or abbreviation)", "size" },
     { "aspect", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_aspect_ratios)}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
@@ -2246,55 +2272,55 @@ const OptionDef options[] = {
     { "padcolor", HAS_ARG | OPT_VIDEO, {(void*)opt_pad}, "Removed, use the pad filter instead", "color" },
     { "intra", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_only}, "deprecated use -g 1"},
     { "vn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(video_disable)}, "disable video" },
-    { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
+    { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {&video_discard}, "discard threshold", "n" },
     { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(rc_overrides)}, "rate control override for specific intervals", "override" },
-    { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
-    { "sameq", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant}, "use same quantizer as source (implies VBR)" },
-    { "same_quant", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant},
+    { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {.func2_arg = opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
+    { "sameq", OPT_BOOL | OPT_VIDEO, {&same_quant}, "use same quantizer as source (implies VBR)" },
+    { "same_quant", OPT_BOOL | OPT_VIDEO, {&same_quant},
       "use same quantizer as source (implies VBR)" },
-    { "timecode", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_timecode}, "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
-    { "pass", HAS_ARG | OPT_VIDEO, {(void*)opt_pass}, "select the pass number (1 or 2)", "n" },
+    { "timecode", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {.func2_arg = opt_timecode}, "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
+    { "pass", HAS_ARG | OPT_VIDEO, {opt_pass}, "select the pass number (1 or 2)", "n" },
     { "passlogfile", HAS_ARG | OPT_VIDEO, {(void*)&opt_passlogfile}, "select two pass log file name prefix", "prefix" },
-    { "deinterlace", OPT_EXPERT | OPT_VIDEO, {(void*)opt_deinterlace},
+    { "deinterlace", OPT_EXPERT | OPT_VIDEO, {opt_deinterlace},
       "this option is deprecated, use the yadif filter instead" },
     { "psnr", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {(void*)&do_psnr}, "calculate PSNR of compressed frames" },
-    { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
-    { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
-    { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_filters}, "video filters", "filter list" },
+    { "vstats", OPT_EXPERT | OPT_VIDEO, {&opt_vstats}, "dump video coding statistics to file" },
+    { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {opt_vstats_file}, "dump video coding statistics to file", "file" },
+    { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {.func2_arg = opt_video_filters}, "video filters", "filter list" },
     { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(intra_matrices)}, "specify intra matrix coeffs", "matrix" },
     { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(inter_matrices)}, "specify inter matrix coeffs", "matrix" },
     { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT| OPT_SPEC, {.off = OFFSET(top_field_first)}, "top=1/bottom=0/auto=-1 field first", "" },
-    { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
-    { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {(void*)opt_old2new}, "force video tag/fourcc", "fourcc/tag" },
-    { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
+    { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {&intra_dc_precision}, "intra_dc_precision", "precision" },
+    { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {.func2_arg = opt_old2new}, "force video tag/fourcc", "fourcc/tag" },
+    { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, {&qp_hist }, "show QP histogram" },
     { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(force_fps)}, "force the selected framerate, disable the best supported framerate selection" },
-    { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
+    { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {.func2_arg = opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
     { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(forced_key_frames)}, "force key frames at specified timestamps", "timestamps" },
     { "b", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_bitrate}, "video bitrate (please use -b:v)", "bitrate" },
 
     /* audio options */
-    { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_frames}, "set the number of audio frames to record", "number" },
-    { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
+    { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {.func2_arg = opt_audio_frames}, "set the number of audio frames to record", "number" },
+    { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {.func2_arg = opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
     { "ar", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_sample_rate)}, "set audio sampling rate (in Hz)", "rate" },
     { "ac", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_channels)}, "set number of audio channels", "channels" },
     { "an", OPT_BOOL | OPT_AUDIO | OPT_OFFSET, {.off = OFFSET(audio_disable)}, "disable audio" },
-    { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
-    { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_old2new}, "force audio tag/fourcc", "fourcc/tag" },
-    { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
+    { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {.func2_arg = opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
+    { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {.func2_arg = opt_old2new}, "force audio tag/fourcc", "fourcc/tag" },
+    { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
     { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING, {.off = OFFSET(sample_fmts)}, "set sample format", "format" },
-    { "channel_layout", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_channel_layout}, "set channel layout", "layout" },
-    { "af", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_filters}, "audio filters", "filter list" },
+    { "channel_layout", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {.func2_arg = opt_channel_layout}, "set channel layout", "layout" },
+    { "af", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {.func2_arg = opt_audio_filters}, "audio filters", "filter list" },
 
     /* subtitle options */
     { "sn", OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET, {.off = OFFSET(subtitle_disable)}, "disable subtitle" },
-    { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
-    { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_old2new}, "force subtitle tag/fourcc", "fourcc/tag" },
+    { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {.func2_arg = opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
+    { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {.func2_arg = opt_old2new}, "force subtitle tag/fourcc", "fourcc/tag" },
     { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC, {.off = OFFSET(fix_sub_duration)}, "fix subtitles duration" },
 
     /* grab options */
     { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_channel}, "deprecated, use -channel", "channel" },
     { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_GRAB, {(void*)opt_video_standard}, "deprecated, use -standard", "standard" },
-    { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
+    { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {&input_sync}, "sync read on input", "" },
 
     /* muxer options */
     { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT   | OPT_OFFSET, {.off = OFFSET(mux_max_delay)}, "set the maximum demux-decode delay", "seconds" },
@@ -2309,9 +2335,9 @@ const OptionDef options[] = {
     { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set the subtitle options to the indicated preset", "preset" },
     { "fpre", HAS_ARG | OPT_EXPERT| OPT_FUNC2, {(void*)opt_preset}, "set options from indicated preset file", "filename" },
     /* data codec support */
-    { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
+    { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {.func2_arg = opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
     { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(data_disable)}, "disable data" },
 
-    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },
+    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {.func_arg = opt_default}, "generic catch all option", "" },
     { NULL, },
 };
diff --git a/ffplay.c b/ffplay.c
index 88ba2bee72..5c7ab3670a 100644
--- a/ffplay.c
+++ b/ffplay.c
@@ -244,7 +244,7 @@ typedef struct AllocEventProps {
     AVFrame *frame;
 } AllocEventProps;
 
-static int opt_help(const char *opt, const char *arg);
+static int show_help(const char *opt, const char *arg);
 
 /* options specified by the user */
 static AVInputFormat *file_iformat;
@@ -3023,7 +3023,7 @@ static void show_usage(void)
     av_log(NULL, AV_LOG_INFO, "\n");
 }
 
-static int opt_help(const char *opt, const char *arg)
+static int show_help(const char *opt, const char *arg)
 {
     av_log_set_callback(log_callback_help);
     show_usage();
diff --git a/ffprobe.c b/ffprobe.c
index 95548c7d75..0038956479 100644
--- a/ffprobe.c
+++ b/ffprobe.c
@@ -2072,7 +2072,7 @@ static void opt_input_file(void *optctx, const char *arg)
     input_filename = arg;
 }
 
-static int opt_help(const char *opt, const char *arg)
+static int show_help(const char *opt, const char *arg)
 {
     av_log_set_callback(log_callback_help);
     show_usage();
@@ -2080,7 +2080,6 @@ static int opt_help(const char *opt, const char *arg)
     printf("\n");
 
     show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
-
     return 0;
 }
 
diff --git a/ffserver.c b/ffserver.c
index a421e23ce3..51eb07a63e 100644
--- a/ffserver.c
+++ b/ffserver.c
@@ -4645,7 +4645,7 @@ static void opt_debug(void)
     logfilename[0] = '-';
 }
 
-static int opt_help(const char *opt, const char *arg)
+static int show_help(const char *opt, const char *arg)
 {
     printf("usage: ffserver [options]\n"
            "Hyper fast multi format Audio/Video streaming server\n");