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error: add error code AVERROR_OPTION_NOT_FOUND, and use it in opt.c

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The new error code is better than AVERROR(ENOENT), which has a
completely different semantics ("No such file or directory").

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Stefano Sabatini 2011-04-11 00:52:04 +02:00 committed by Anton Khirnov
parent f83acb096c
commit 58f8463947
3 changed files with 5 additions and 3 deletions
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1
libavutil/error.c
View File

@ -33,6 +33,7 @@ int av_strerror(int errnum, char *errbuf, size_t errbuf_size)
case AVERROR_MUXER_NOT_FOUND: errstr = "Muxer not found"; break;
case AVERROR_DECODER_NOT_FOUND: errstr = "Decoder not found"; break;
case AVERROR_ENCODER_NOT_FOUND: errstr = "Encoder not found"; break;
case AVERROR_OPTION_NOT_FOUND: errstr = "Option not found"; break;
case AVERROR_PROTOCOL_NOT_FOUND:errstr = "Protocol not found"; break;
case AVERROR_FILTER_NOT_FOUND: errstr = "Filter not found"; break;
case AVERROR_BSF_NOT_FOUND: errstr = "Bitstream filter not found"; break;

1
libavutil/error.h
View File

@ -48,6 +48,7 @@
#define AVERROR_MUXER_NOT_FOUND (-MKTAG(0xF8,'M','U','X')) ///< Muxer not found
#define AVERROR_DECODER_NOT_FOUND (-MKTAG(0xF8,'D','E','C')) ///< Decoder not found
#define AVERROR_ENCODER_NOT_FOUND (-MKTAG(0xF8,'E','N','C')) ///< Encoder not found
#define AVERROR_OPTION_NOT_FOUND (-MKTAG(0xF8,'O','P','T')) ///< Option not found
#define AVERROR_PROTOCOL_NOT_FOUND (-MKTAG(0xF8,'P','R','O')) ///< Protocol not found
#define AVERROR_FILTER_NOT_FOUND (-MKTAG(0xF8,'F','I','L')) ///< Filter not found
#define AVERROR_BSF_NOT_FOUND (-MKTAG(0xF8,'B','S','F')) ///< Bitstream filter not found

6
libavutil/opt.c
View File

@ -57,7 +57,7 @@ static int av_set_number2(void *obj, const char *name, double num, int den, int6
if (o_out)
*o_out= o;
if (!o || o->offset<=0)
return AVERROR(ENOENT);
return AVERROR_OPTION_NOT_FOUND;
if (o->max*den < num*intnum || o->min*den > num*intnum) {
av_log(obj, AV_LOG_ERROR, "Value %lf for parameter '%s' out of range\n", num, name);
@ -119,7 +119,7 @@ int av_set_string3(void *obj, const char *name, const char *val, int alloc, cons
if (o_out)
*o_out = o;
if (!o)
return AVERROR(ENOENT);
return AVERROR_OPTION_NOT_FOUND;
if (!val || o->offset<=0)
return AVERROR(EINVAL);
@ -490,7 +490,7 @@ static int parse_key_value_pair(void *ctx, const char **buf,
av_log(ctx, AV_LOG_DEBUG, "Setting value '%s' for key '%s'\n", val, key);
ret = av_set_string3(ctx, key, val, 1, NULL);
if (ret == AVERROR(ENOENT))
if (ret == AVERROR_OPTION_NOT_FOUND)
av_log(ctx, AV_LOG_ERROR, "Key '%s' not found.\n", key);
av_free(key);