remove CHAR_MIN/CHAR_MAX usage

It is not needed at all.

4 files changed, 6 insertions, 6 deletions

diff --git a/libavcodec/mpeg12enc.c b/libavcodec/mpeg12enc.c
index cbf2f6fa03..b460e78a59 100644
--- a/libavcodec/mpeg12enc.c
+++ b/libavcodec/mpeg12enc.c
@@ -1134,7 +1134,7 @@ av_cold void ff_mpeg1_encode_init(MpegEncContext *s)
 #define VE AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM
 #define COMMON_OPTS                                                           \
     { "gop_timecode",        "MPEG GOP Timecode in hh:mm:ss[:;.]ff format. Overrides timecode_frame_start.",   \
-      OFFSET(tc_opt_str), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, VE },\
+      OFFSET(tc_opt_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, VE },\
     { "intra_vlc",           "Use MPEG-2 intra VLC table.",                   \
       OFFSET(intra_vlc_format),    AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VE }, \
     { "drop_frame_timecode", "Timecode is in drop frame format.",             \
diff --git a/libavcodec/options_table.h b/libavcodec/options_table.h
index 3265889b8e..54366747ca 100644
--- a/libavcodec/options_table.h
+++ b/libavcodec/options_table.h
@@ -447,7 +447,7 @@ static const AVOption avcodec_options[] = {
 {"ka", "Karaoke",            0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_KARAOKE },           INT_MIN, INT_MAX, A|E, "audio_service_type"},
 {"request_sample_fmt", "sample format audio decoders should prefer", OFFSET(request_sample_fmt), AV_OPT_TYPE_SAMPLE_FMT, {.i64=AV_SAMPLE_FMT_NONE}, -1, INT_MAX, A|D, "request_sample_fmt"},
 {"pkt_timebase", NULL, OFFSET(pkt_timebase), AV_OPT_TYPE_RATIONAL, {.dbl = 0 }, 0, INT_MAX, 0},
-{"sub_charenc", "set input text subtitles character encoding", OFFSET(sub_charenc), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, S|D},
+{"sub_charenc", "set input text subtitles character encoding", OFFSET(sub_charenc), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, S|D},
 {"sub_charenc_mode", "set input text subtitles character encoding mode", OFFSET(sub_charenc_mode), AV_OPT_TYPE_FLAGS, {.i64 = FF_SUB_CHARENC_MODE_AUTOMATIC}, -1, INT_MAX, S|D, "sub_charenc_mode"},
 {"do_nothing",  NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_DO_NOTHING},  INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
 {"auto",        NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_SUB_CHARENC_MODE_AUTOMATIC},   INT_MIN, INT_MAX, S|D, "sub_charenc_mode"},
@@ -474,8 +474,8 @@ static const AVOption avcodec_options[] = {
 {"bb", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_BB }, 0, 0, V|D|E, "field_order" },
 {"tb", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_TB }, 0, 0, V|D|E, "field_order" },
 {"bt", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = AV_FIELD_BT }, 0, 0, V|D|E, "field_order" },
-{"dump_separator", "set information dump field separator", OFFSET(dump_separator), AV_OPT_TYPE_STRING, {.str = NULL}, CHAR_MIN, CHAR_MAX, A|V|S|D|E},
-{"codec_whitelist", "List of decoders that are allowed to be used", OFFSET(codec_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, A|V|S|D },
+{"dump_separator", "set information dump field separator", OFFSET(dump_separator), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, A|V|S|D|E},
+{"codec_whitelist", "List of decoders that are allowed to be used", OFFSET(codec_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  0, 0, A|V|S|D },
 {"pixel_format", "set pixel format", OFFSET(pix_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_NONE}, -1, INT_MAX, 0 },
 {"video_size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, {.str=NULL}, 0, INT_MAX, 0 },
 {"max_pixels", "Maximum number of pixels", OFFSET(max_pixels), AV_OPT_TYPE_INT64, {.i64 = INT_MAX }, 0, INT_MAX, A|V|S|D|E },
diff --git a/libavcodec/proresenc_anatoliy.c b/libavcodec/proresenc_anatoliy.c
index 1fcb0ae913..11d05022dc 100644
--- a/libavcodec/proresenc_anatoliy.c
+++ b/libavcodec/proresenc_anatoliy.c
@@ -924,7 +924,7 @@ static av_cold int prores_encode_close(AVCodecContext *avctx)
 #define VE     AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM
 
 static const AVOption options[] = {
-    { "vendor", "vendor ID", OFFSET(vendor), AV_OPT_TYPE_STRING, { .str = "fmpg" }, CHAR_MIN, CHAR_MAX, VE },
+    { "vendor", "vendor ID", OFFSET(vendor), AV_OPT_TYPE_STRING, { .str = "fmpg" }, 0, 0, VE },
     { NULL }
 };
 
diff --git a/libavcodec/proresenc_kostya.c b/libavcodec/proresenc_kostya.c
index e045a972f1..6215f8e651 100644
--- a/libavcodec/proresenc_kostya.c
+++ b/libavcodec/proresenc_kostya.c
@@ -1390,7 +1390,7 @@ static const AVOption options[] = {
     { "4444xq",        NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PRORES_PROFILE_4444XQ },
         0, 0, VE, "profile" },
     { "vendor", "vendor ID", OFFSET(vendor),
-        AV_OPT_TYPE_STRING, { .str = "Lavc" }, CHAR_MIN, CHAR_MAX, VE },
+        AV_OPT_TYPE_STRING, { .str = "Lavc" }, 0, 0, VE },
     { "bits_per_mb", "desired bits per macroblock", OFFSET(bits_per_mb),
         AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 8192, VE },
     { "quant_mat", "quantiser matrix", OFFSET(quant_sel), AV_OPT_TYPE_INT,