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ffprobe: add support for nested options in writer contexts

This commit is contained in:
Stefano Sabatini 2013-11-20 15:30:47 +01:00
parent e87190f5d2
commit 11cba3ba9d
1 changed files with 35 additions and 2 deletions
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37
ffprobe.c
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@ -306,11 +306,22 @@ static const char *writer_get_name(void *p)
return wctx->writer->name; return wctx->writer->name;
} }
#define OFFSET(x) offsetof(WriterContext, x)
static void *writer_child_next(void *obj, void *prev)
{
WriterContext *ctx = obj;
if (!prev && ctx->writer && ctx->writer->priv_class && ctx->priv)
return ctx->priv;
return NULL;
}
static const AVClass writer_class = { static const AVClass writer_class = {
"Writer", "Writer",
writer_get_name, writer_get_name,
NULL, NULL,
LIBAVUTIL_VERSION_INT, LIBAVUTIL_VERSION_INT,
.child_next = writer_child_next,
}; };
static void writer_close(WriterContext **wctx) static void writer_close(WriterContext **wctx)
@ -351,14 +362,35 @@ static int writer_open(WriterContext **wctx, const Writer *writer, const char *a
(*wctx)->sections = sections; (*wctx)->sections = sections;
(*wctx)->nb_sections = nb_sections; (*wctx)->nb_sections = nb_sections;
av_opt_set_defaults(*wctx);
if (writer->priv_class) { if (writer->priv_class) {
void *priv_ctx = (*wctx)->priv; void *priv_ctx = (*wctx)->priv;
*((const AVClass **)priv_ctx) = writer->priv_class; *((const AVClass **)priv_ctx) = writer->priv_class;
av_opt_set_defaults(priv_ctx); av_opt_set_defaults(priv_ctx);
}
if (args && /* convert options to dictionary */
(ret = av_set_options_string(priv_ctx, args, "=", ":")) < 0) if (args) {
AVDictionary *opts = NULL;
AVDictionaryEntry *opt = NULL;
if ((ret = av_dict_parse_string(&opts, args, "=", ":", 0)) < 0) {
av_log(*wctx, AV_LOG_ERROR, "Failed to parse option string '%s' provided to writer context\n", args);
av_dict_free(&opts);
goto fail; goto fail;
}
while ((opt = av_dict_get(opts, "", opt, AV_DICT_IGNORE_SUFFIX))) {
if ((ret = av_opt_set(*wctx, opt->key, opt->value, AV_OPT_SEARCH_CHILDREN)) < 0) {
av_log(*wctx, AV_LOG_ERROR, "Failed to set option '%s' with value '%s' provided to writer context\n",
opt->key, opt->value);
av_dict_free(&opts);
goto fail;
}
}
av_dict_free(&opts);
} }
for (i = 0; i < SECTION_MAX_NB_LEVELS; i++) for (i = 0; i < SECTION_MAX_NB_LEVELS; i++)
@ -557,6 +589,7 @@ typedef struct DefaultContext {
int nested_section[SECTION_MAX_NB_LEVELS]; int nested_section[SECTION_MAX_NB_LEVELS];
} DefaultContext; } DefaultContext;
#undef OFFSET
#define OFFSET(x) offsetof(DefaultContext, x) #define OFFSET(x) offsetof(DefaultContext, x)
static const AVOption default_options[] = { static const AVOption default_options[] = {