The existing (and upcoming) available group types are meant to combine several
streams for presentation, with the result being treated as if it was a stream
itself.
For example, a file could export two stream groups of the same type with one of
them as the "default".
Signed-off-by: James Almer <jamr...@gmail.com>
---
libavformat/avformat.h | 8 +++++
libavformat/dump.c | 77 ++++++++++++++++++++++--------------------
libavformat/options.c | 45 ++++++++++++------------
3 files changed, 73 insertions(+), 57 deletions(-)
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 5d0fe82250..931c274879 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1093,6 +1093,14 @@ typedef struct AVStreamGroup {
* Freed by libavformat in avformat_free_context().
*/
AVStream **streams;
+
+ /**
+ * Stream group disposition - a combination of AV_DISPOSITION_* flags.
+ * - demuxing: set by libavformat when creating the group or in
+ * avformat_find_stream_info().
+ * - muxing: may be set by the caller before avformat_write_header().
+ */
+ int disposition;
} AVStreamGroup;
struct AVCodecParserContext *av_stream_get_parser(const AVStream *s);
diff --git a/libavformat/dump.c b/libavformat/dump.c
index 9d37179bb7..c72d7840c1 100644
--- a/libavformat/dump.c
+++ b/libavformat/dump.c
@@ -538,6 +538,46 @@ static void dump_sidedata(void *ctx, const AVStream *st,
const char *indent,
}
}
+static void dump_disposition(int disposition, int log_level)
+{
+ if (disposition & AV_DISPOSITION_DEFAULT)
+ av_log(NULL, log_level, " (default)");
+ if (disposition & AV_DISPOSITION_DUB)
+ av_log(NULL, log_level, " (dub)");
+ if (disposition & AV_DISPOSITION_ORIGINAL)
+ av_log(NULL, log_level, " (original)");
+ if (disposition & AV_DISPOSITION_COMMENT)
+ av_log(NULL, log_level, " (comment)");
+ if (disposition & AV_DISPOSITION_LYRICS)
+ av_log(NULL, log_level, " (lyrics)");
+ if (disposition & AV_DISPOSITION_KARAOKE)
+ av_log(NULL, log_level, " (karaoke)");
+ if (disposition & AV_DISPOSITION_FORCED)
+ av_log(NULL, log_level, " (forced)");
+ if (disposition & AV_DISPOSITION_HEARING_IMPAIRED)
+ av_log(NULL, log_level, " (hearing impaired)");
+ if (disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
+ av_log(NULL, log_level, " (visual impaired)");
+ if (disposition & AV_DISPOSITION_CLEAN_EFFECTS)
+ av_log(NULL, log_level, " (clean effects)");
+ if (disposition & AV_DISPOSITION_ATTACHED_PIC)
+ av_log(NULL, log_level, " (attached pic)");
+ if (disposition & AV_DISPOSITION_TIMED_THUMBNAILS)
+ av_log(NULL, log_level, " (timed thumbnails)");
+ if (disposition & AV_DISPOSITION_CAPTIONS)
+ av_log(NULL, log_level, " (captions)");
+ if (disposition & AV_DISPOSITION_DESCRIPTIONS)
+ av_log(NULL, log_level, " (descriptions)");
+ if (disposition & AV_DISPOSITION_METADATA)
+ av_log(NULL, log_level, " (metadata)");
+ if (disposition & AV_DISPOSITION_DEPENDENT)
+ av_log(NULL, log_level, " (dependent)");
+ if (disposition & AV_DISPOSITION_STILL_IMAGE)
+ av_log(NULL, log_level, " (still image)");
+ if (disposition & AV_DISPOSITION_NON_DIEGETIC)
+ av_log(NULL, log_level, " (non-diegetic)");
+}
+
/* "user interface" functions */
static void dump_stream_format(const AVFormatContext *ic, int i,
int group_index, int index, int is_output,
@@ -620,42 +660,7 @@ static void dump_stream_format(const AVFormatContext *ic,
int i,
print_fps(1 / av_q2d(st->time_base), "tbn", log_level);
}
- if (st->disposition & AV_DISPOSITION_DEFAULT)
- av_log(NULL, log_level, " (default)");
- if (st->disposition & AV_DISPOSITION_DUB)
- av_log(NULL, log_level, " (dub)");
- if (st->disposition & AV_DISPOSITION_ORIGINAL)
- av_log(NULL, log_level, " (original)");
- if (st->disposition & AV_DISPOSITION_COMMENT)
- av_log(NULL, log_level, " (comment)");
- if (st->disposition & AV_DISPOSITION_LYRICS)
- av_log(NULL, log_level, " (lyrics)");
- if (st->disposition & AV_DISPOSITION_KARAOKE)
- av_log(NULL, log_level, " (karaoke)");
- if (st->disposition & AV_DISPOSITION_FORCED)
- av_log(NULL, log_level, " (forced)");
- if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED)
- av_log(NULL, log_level, " (hearing impaired)");
- if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED)
- av_log(NULL, log_level, " (visual impaired)");
- if (st->disposition & AV_DISPOSITION_CLEAN_EFFECTS)
- av_log(NULL, log_level, " (clean effects)");
- if (st->disposition & AV_DISPOSITION_ATTACHED_PIC)
- av_log(NULL, log_level, " (attached pic)");
- if (st->disposition & AV_DISPOSITION_TIMED_THUMBNAILS)
- av_log(NULL, log_level, " (timed thumbnails)");
- if (st->disposition & AV_DISPOSITION_CAPTIONS)
- av_log(NULL, log_level, " (captions)");
- if (st->disposition & AV_DISPOSITION_DESCRIPTIONS)
- av_log(NULL, log_level, " (descriptions)");
- if (st->disposition & AV_DISPOSITION_METADATA)
- av_log(NULL, log_level, " (metadata)");
- if (st->disposition & AV_DISPOSITION_DEPENDENT)
- av_log(NULL, log_level, " (dependent)");
- if (st->disposition & AV_DISPOSITION_STILL_IMAGE)
- av_log(NULL, log_level, " (still image)");
- if (st->disposition & AV_DISPOSITION_NON_DIEGETIC)
- av_log(NULL, log_level, " (non-diegetic)");
+ dump_disposition(st->disposition, log_level);
av_log(NULL, log_level, "\n");
dump_metadata(NULL, st->metadata, extra_indent, log_level);
diff --git a/libavformat/options.c b/libavformat/options.c
index 03e6a2a7ff..f54a3c97b5 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -208,28 +208,30 @@ const AVClass *avformat_get_class(void)
return &av_format_context_class;
}
-static const AVOption stream_options[] = {
- { "disposition", NULL, offsetof(AVStream, disposition), AV_OPT_TYPE_FLAGS,
{ .i64 = 0 },
- .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "disposition" },
- { "default", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_DEFAULT }, .unit = "disposition" },
- { "dub", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_DUB }, .unit = "disposition" },
- { "original", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_ORIGINAL }, .unit = "disposition" },
- { "comment", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_COMMENT }, .unit = "disposition" },
- { "lyrics", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_LYRICS }, .unit = "disposition" },
- { "karaoke", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_KARAOKE }, .unit = "disposition" },
- { "forced", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_FORCED }, .unit = "disposition" },
- { "hearing_impaired", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_HEARING_IMPAIRED }, .unit = "disposition" },
- { "visual_impaired", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_VISUAL_IMPAIRED }, .unit = "disposition" },
- { "clean_effects", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_CLEAN_EFFECTS }, .unit = "disposition" },
- { "attached_pic", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_ATTACHED_PIC }, .unit = "disposition" },
- { "timed_thumbnails", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_TIMED_THUMBNAILS }, .unit = "disposition" },
- { "non_diegetic", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_NON_DIEGETIC }, .unit = "disposition" },
- { "captions", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_CAPTIONS }, .unit = "disposition" },
- { "descriptions", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_DESCRIPTIONS }, .unit = "disposition" },
- { "metadata", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_METADATA }, .unit = "disposition" },
- { "dependent", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_DEPENDENT }, .unit = "disposition" },
- { "still_image", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_STILL_IMAGE }, .unit = "disposition" },
+#define DISPOSITION_OPT(ctx)
\
+ { "disposition", NULL, offsetof(ctx, disposition), AV_OPT_TYPE_FLAGS, {
.i64 = 0 }, \
+ .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "disposition" },
\
+ { "default", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_DEFAULT }, .unit = "disposition" }, \
+ { "dub", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_DUB }, .unit = "disposition" }, \
+ { "original", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_ORIGINAL }, .unit = "disposition" }, \
+ { "comment", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_COMMENT }, .unit = "disposition" }, \
+ { "lyrics", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_LYRICS }, .unit = "disposition" }, \
+ { "karaoke", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_KARAOKE }, .unit = "disposition" }, \
+ { "forced", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_FORCED }, .unit = "disposition" }, \
+ { "hearing_impaired", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_HEARING_IMPAIRED }, .unit = "disposition" }, \
+ { "visual_impaired", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_VISUAL_IMPAIRED }, .unit = "disposition" }, \
+ { "clean_effects", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_CLEAN_EFFECTS }, .unit = "disposition" }, \
+ { "attached_pic", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_ATTACHED_PIC }, .unit = "disposition" }, \
+ { "timed_thumbnails", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_TIMED_THUMBNAILS }, .unit = "disposition" }, \
+ { "non_diegetic", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_NON_DIEGETIC }, .unit = "disposition" }, \
+ { "captions", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_CAPTIONS }, .unit = "disposition" }, \
+ { "descriptions", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_DESCRIPTIONS }, .unit = "disposition" }, \
+ { "metadata", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_METADATA }, .unit = "disposition" }, \
+ { "dependent", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_DEPENDENT }, .unit = "disposition" }, \
+ { "still_image", .type = AV_OPT_TYPE_CONST, { .i64 =
AV_DISPOSITION_STILL_IMAGE }, .unit = "disposition" }
+static const AVOption stream_options[] = {
+ DISPOSITION_OPT(AVStream),
{ "discard", NULL, offsetof(AVStream, discard), AV_OPT_TYPE_INT, { .i64 =
AVDISCARD_DEFAULT }, INT_MIN, INT_MAX,
.flags = AV_OPT_FLAG_DECODING_PARAM, .unit = "avdiscard" },
{ "none", .type = AV_OPT_TYPE_CONST, {.i64 =
AVDISCARD_NONE }, .unit = "avdiscard" },
@@ -380,6 +382,7 @@ static const AVClass *stream_group_child_iterate(void
**opaque)
}
static const AVOption stream_group_options[] = {
+ DISPOSITION_OPT(AVStreamGroup),
{"id", "Set group id", offsetof(AVStreamGroup, id), AV_OPT_TYPE_INT64,
{.i64 = 0}, 0, INT64_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ NULL }
};
--
2.43.0
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