From ea8de109af46ae8e6751217977ae8f7becf94ba5 Mon Sep 17 00:00:00 2001 From: Stefano Sabatini Date: Thu, 18 Aug 2011 15:26:21 +0200 Subject: [PATCH] lavfi: add avfilter_all_channel_layouts public symbol This list is mainly useful to be directly used as a parameter by the audio sink buffer, when there is no need to force a specific channel layout. The list of formats is generated programmatically, and avoids channel layouts not supported by libavfilter (with more than 8 channels). We preferred to avoid compile-time generation in order to avoid some unnecessary complexity (build hacks, generating code maintainance etc.). A more compact way to express this list through the use of macros should be possible when libavfilter will support more than 8 channels, as there will be no need to filter out channel layouts with more than 8 channels. See thread: Subject: [FFmpeg-devel] [PATCH] lavfi: add ff_all_channel_layouts internal symbol Date: Sat, 20 Aug 2011 15:33:16 +0200 --- doc/APIchanges | 3 ++ libavfilter/Makefile | 2 + libavfilter/all_channel_layouts.h | 68 +++++++++++++++++++++++++++++++ libavfilter/avfilter.h | 7 +++- libavfilter/formats.c | 41 +++++++++++-------- 5 files changed, 103 insertions(+), 18 deletions(-) create mode 100644 libavfilter/all_channel_layouts.h diff --git a/doc/APIchanges b/doc/APIchanges index 3e126516c2..b97df1f1a7 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -13,6 +13,9 @@ libavutil: 2011-04-18 API changes, most recent first: +2011-09-16 - xxxxxxx - lavfi 2.42.0 + Add avfilter_all_channel_layouts. + 2011-09-16 - xxxxxxx - lavfi 2.41.0 Rename avfilter_all_* function names to avfilter_make_all_*. diff --git a/libavfilter/Makefile b/libavfilter/Makefile index 840d53ce39..9ea5c4c23d 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -146,6 +146,8 @@ OBJS-$(CONFIG_MP_FILTER) += libmpcodecs/pullup.o DIRS = x86 libmpcodecs +TESTPROGS = formats + TOOLS = graph2dot lavfi-showfiltfmts include $(SRC_PATH)/subdir.mak diff --git a/libavfilter/all_channel_layouts.h b/libavfilter/all_channel_layouts.h new file mode 100644 index 0000000000..878e1f5f8e --- /dev/null +++ b/libavfilter/all_channel_layouts.h @@ -0,0 +1,68 @@ +AV_CH_FRONT_CENTER, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY, +AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_CENTER, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER, +AV_CH_FRONT_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_CENTER|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_LOW_FREQUENCY|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, +AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT|AV_CH_FRONT_CENTER|AV_CH_BACK_CENTER|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT|AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT, diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h index a8426fea53..f1ebd09735 100644 --- a/libavfilter/avfilter.h +++ b/libavfilter/avfilter.h @@ -29,7 +29,7 @@ #include "libavutil/rational.h" #define LIBAVFILTER_VERSION_MAJOR 2 -#define LIBAVFILTER_VERSION_MINOR 41 +#define LIBAVFILTER_VERSION_MINOR 42 #define LIBAVFILTER_VERSION_MICRO 0 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ @@ -274,6 +274,11 @@ AVFilterFormats *avfilter_all_formats(enum AVMediaType type); */ AVFilterFormats *avfilter_make_all_formats(enum AVMediaType type); +/** + * A list of all channel layouts supported by libavfilter. + */ +extern const int64_t avfilter_all_channel_layouts[]; + /** * Return a list of all channel layouts supported by FFmpeg. */ diff --git a/libavfilter/formats.c b/libavfilter/formats.c index 0efa1aad77..33be69bedd 100644 --- a/libavfilter/formats.c +++ b/libavfilter/formats.c @@ -160,25 +160,14 @@ AVFilterFormats *avfilter_make_all_formats(enum AVMediaType type) return ret; } +const int64_t avfilter_all_channel_layouts[] = { +#include "all_channel_layouts.h" + -1 +}; + AVFilterFormats *avfilter_make_all_channel_layouts(void) { - static int64_t chlayouts[] = { - AV_CH_LAYOUT_MONO, - AV_CH_LAYOUT_STEREO, - AV_CH_LAYOUT_4POINT0, - AV_CH_LAYOUT_QUAD, - AV_CH_LAYOUT_5POINT0, - AV_CH_LAYOUT_5POINT0_BACK, - AV_CH_LAYOUT_5POINT1, - AV_CH_LAYOUT_5POINT1_BACK, - AV_CH_LAYOUT_5POINT1|AV_CH_LAYOUT_STEREO_DOWNMIX, - AV_CH_LAYOUT_7POINT1, - AV_CH_LAYOUT_7POINT1_WIDE, - AV_CH_LAYOUT_7POINT1|AV_CH_LAYOUT_STEREO_DOWNMIX, - -1, - }; - - return avfilter_make_format64_list(chlayouts); + return avfilter_make_format64_list(avfilter_all_channel_layouts); } AVFilterFormats *avfilter_make_all_packing_formats(void) @@ -317,3 +306,21 @@ int ff_parse_packing_format(int *ret, const char *arg, void *log_ctx) return 0; } +#ifdef TEST + +#undef printf + +int main(void) +{ + const int64_t *cl; + char buf[512]; + + for (cl = avfilter_all_channel_layouts_int64; *cl != -1; cl++) { + av_get_channel_layout_string(buf, sizeof(buf), -1, *cl); + printf("%s\n", buf); + } + + return 0; +} + +#endif