This uses the av_warn_unused_result attribute liberally to catch some forms of improper usage of functions defined in avfilter/formats.h.
Signed-off-by: Ganesh Ajjanagadde <gajjanaga...@gmail.com> --- libavfilter/formats.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/libavfilter/formats.h b/libavfilter/formats.h index 5a8ee5e..7259afb 100644 --- a/libavfilter/formats.h +++ b/libavfilter/formats.h @@ -142,8 +142,10 @@ AVFilterChannelLayouts *avfilter_make_format64_list(const int64_t *fmts); * layouts/sample rates. If there are no links hooked to this filter, the list * is freed. */ +av_warn_unused_result int ff_set_common_channel_layouts(AVFilterContext *ctx, AVFilterChannelLayouts *layouts); +av_warn_unused_result int ff_set_common_samplerates(AVFilterContext *ctx, AVFilterFormats *samplerates); @@ -152,13 +154,16 @@ int ff_set_common_samplerates(AVFilterContext *ctx, * formats. If there are no links hooked to this filter, the list of formats is * freed. */ +av_warn_unused_result int ff_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats); +av_warn_unused_result int ff_add_channel_layout(AVFilterChannelLayouts **l, uint64_t channel_layout); /** * Add *ref as a new reference to f. */ +av_warn_unused_result int ff_channel_layouts_ref(AVFilterChannelLayouts *f, AVFilterChannelLayouts **ref); @@ -170,6 +175,7 @@ void ff_channel_layouts_unref(AVFilterChannelLayouts **ref); void ff_channel_layouts_changeref(AVFilterChannelLayouts **oldref, AVFilterChannelLayouts **newref); +av_warn_unused_result int ff_default_query_formats(AVFilterContext *ctx); /** @@ -178,6 +184,7 @@ int ff_default_query_formats(AVFilterContext *ctx); * accepts channel layouts with unknown disposition. It should only be used * with audio filters. */ +av_warn_unused_result int ff_query_formats_all(AVFilterContext *ctx); @@ -198,6 +205,7 @@ AVFilterFormats *ff_make_format_list(const int *fmts); * @return a non negative value in case of success, or a negative * value corresponding to an AVERROR code in case of error */ +av_warn_unused_result int ff_add_format(AVFilterFormats **avff, int64_t fmt); /** @@ -233,6 +241,7 @@ AVFilterFormats *ff_merge_formats(AVFilterFormats *a, AVFilterFormats *b, * | |____| | | |____| * |________| |________________________ */ +av_warn_unused_result int ff_formats_ref(AVFilterFormats *formats, AVFilterFormats **ref); /** -- 2.6.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel