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lavu/opt: factorize setting of format values from string 

Simplify incoming patch.
This commit is contained in:
Stefano Sabatini 2013-12-16 14:55:54 +01:00
parent e2b54464c6
commit 1575a96b3a
1 changed files with 38 additions and 32 deletions
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70
libavutil/opt.c
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@ -295,6 +295,42 @@ static int set_string_color(void *obj, const AVOption *o, const char *val, uint8
return 0;
}
static int set_string_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst,
int fmt_nb, int ((*get_fmt)(const char *)), const char *desc)
{
int fmt;
if (!val || !strcmp(val, "none")) {
fmt = -1;
} else {
fmt = get_fmt(val);
if (fmt == -1) {
char *tail;
fmt = strtol(val, &tail, 0);
if (*tail || (unsigned)fmt >= fmt_nb) {
av_log(obj, AV_LOG_ERROR,
"Unable to parse option value \"%s\" as %s\n", val, desc);
return AVERROR(EINVAL);
}
}
}
*(int *)dst = fmt;
return 0;
}
static int set_string_pixel_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
{
return set_string_fmt(obj, o, val, dst,
AV_PIX_FMT_NB, av_get_pix_fmt, "pixel format");
}
static int set_string_sample_fmt(void *obj, const AVOption *o, const char *val, uint8_t *dst)
{
return set_string_fmt(obj, o, val, dst,
AV_SAMPLE_FMT_NB, av_get_sample_fmt, "sample format");
}
#if FF_API_OLD_AVOPTIONS
int av_set_string3(void *obj, const char *name, const char *val, int alloc, const AVOption **o_out)
{
@ -331,38 +367,8 @@ int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
case AV_OPT_TYPE_RATIONAL: return set_string_number(obj, target_obj, o, val, dst);
case AV_OPT_TYPE_IMAGE_SIZE: return set_string_image_size(obj, o, val, dst);
case AV_OPT_TYPE_VIDEO_RATE: return set_string_video_rate(obj, o, val, dst);
case AV_OPT_TYPE_PIXEL_FMT:
if (!val || !strcmp(val, "none")) {
ret = AV_PIX_FMT_NONE;
} else {
ret = av_get_pix_fmt(val);
if (ret == AV_PIX_FMT_NONE) {
char *tail;
ret = strtol(val, &tail, 0);
if (*tail || (unsigned)ret >= AV_PIX_FMT_NB) {
av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as pixel format\n", val);
return AVERROR(EINVAL);
}
}
}
*(enum AVPixelFormat *)dst = ret;
return 0;
case AV_OPT_TYPE_SAMPLE_FMT:
if (!val || !strcmp(val, "none")) {
ret = AV_SAMPLE_FMT_NONE;
} else {
ret = av_get_sample_fmt(val);
if (ret == AV_SAMPLE_FMT_NONE) {
char *tail;
ret = strtol(val, &tail, 0);
if (*tail || (unsigned)ret >= AV_SAMPLE_FMT_NB) {
av_log(obj, AV_LOG_ERROR, "Unable to parse option value \"%s\" as sample format\n", val);
return AVERROR(EINVAL);
}
}
}
*(enum AVSampleFormat *)dst = ret;
return 0;
case AV_OPT_TYPE_PIXEL_FMT: return set_string_pixel_fmt(obj, o, val, dst);
case AV_OPT_TYPE_SAMPLE_FMT: return set_string_sample_fmt(obj, o, val, dst);
case AV_OPT_TYPE_DURATION:
if (!val) {
*(int64_t *)dst = 0;