| Message ID | 20230501114456.13898-2-epirat07@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [FFmpeg-devel,1/3] avutil/dict: add av_dict_pop | expand |
| Context | Check | Description |
|---|---|---|
| andriy/make_x86 | success | Make finished |
| andriy/make_fate_x86 | success | Make fate finished |
> On May 1, 2023, at 19:44, Marvin Scholz <epirat07@gmail.com> wrote: > > This is a well-defined way to "steal" the value of the dict entry. > --- > libavformat/tee.c | 9 +++++---- > 1 file changed, 5 insertions(+), 4 deletions(-) > > diff --git a/libavformat/tee.c b/libavformat/tee.c > index cb555f52fd..70f3f2eb29 100644 > --- a/libavformat/tee.c > +++ b/libavformat/tee.c > @@ -157,6 +157,7 @@ static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave) > { > int i, ret; > AVDictionary *options = NULL, *bsf_options = NULL; > + char *entry_val = NULL; > AVDictionaryEntry *entry; > char *filename; > char *format = NULL, *select = NULL, *on_fail = NULL; > @@ -171,15 +172,15 @@ static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave) > return ret; > > #define CONSUME_OPTION(option, field, action) do { \ > - if ((entry = av_dict_get(options, option, NULL, 0))) { \ > - field = entry->value; \ > + if ((!av_dict_pop(&options, option, NULL, &entry_val, 0))) { \ > + field = entry_val; \ Nit: You can remove the extra level of parentheses now. > { action } \ > - av_dict_set(&options, option, NULL, 0); \ > + av_freep(&entry_val); \ > } \ > } while (0) > #define STEAL_OPTION(option, field) \ > CONSUME_OPTION(option, field, \ > - entry->value = NULL; /* prevent it from being freed */) > + entry_val = NULL; /* prevent it from being freed */) > #define PROCESS_OPTION(option, field, function, on_error) \ > CONSUME_OPTION(option, field, if ((ret = function) < 0) { { on_error } goto end; }) > > -- > 2.37.0 (Apple Git-136) > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
diff --git a/libavformat/tee.c b/libavformat/tee.c index cb555f52fd..70f3f2eb29 100644 --- a/libavformat/tee.c +++ b/libavformat/tee.c @@ -157,6 +157,7 @@ static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave) { int i, ret; AVDictionary *options = NULL, *bsf_options = NULL; + char *entry_val = NULL; AVDictionaryEntry *entry; char *filename; char *format = NULL, *select = NULL, *on_fail = NULL; @@ -171,15 +172,15 @@ static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave) return ret; #define CONSUME_OPTION(option, field, action) do { \ - if ((entry = av_dict_get(options, option, NULL, 0))) { \ - field = entry->value; \ + if ((!av_dict_pop(&options, option, NULL, &entry_val, 0))) { \ + field = entry_val; \ { action } \ - av_dict_set(&options, option, NULL, 0); \ + av_freep(&entry_val); \ } \ } while (0) #define STEAL_OPTION(option, field) \ CONSUME_OPTION(option, field, \ - entry->value = NULL; /* prevent it from being freed */) + entry_val = NULL; /* prevent it from being freed */) #define PROCESS_OPTION(option, field, function, on_error) \ CONSUME_OPTION(option, field, if ((ret = function) < 0) { { on_error } goto end; })