Control messages are useful for programmatic control of not only outdevs
but also indevs.
Bumping avformat version.
Signed-off-by: Diederick Niehorster <dcni...@gmail.com>
---
libavdevice/avdevice.c | 8 +++++---
libavformat/avformat.h | 6 ++++++
2 files changed, 11 insertions(+), 3 deletions(-)
diff --git a/libavdevice/avdevice.c b/libavdevice/avdevice.c
index 4a40929007..e339cebf2d 100644
--- a/libavdevice/avdevice.c
+++ b/libavdevice/avdevice.c
@@ -53,9 +53,11 @@ const char * avdevice_license(void)
int avdevice_app_to_dev_control_message(struct AVFormatContext *s, enum
AVAppToDevMessageType type,
void *data, size_t data_size)
{
- if (!s->oformat || !s->oformat->control_message)
- return AVERROR(ENOSYS);
- return s->oformat->control_message(s, type, data, data_size);
+ if (s->oformat && s->oformat->control_message)
+ return s->oformat->control_message(s, type, data, data_size);
+ if (s->iformat && s->iformat->control_message)
+ return s->iformat->control_message(s, type, data, data_size);
+ return AVERROR(ENOSYS);
}
int avdevice_dev_to_app_control_message(struct AVFormatContext *s, enum
AVDevToAppMessageType type,
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 043baeea1f..7e9db81d26 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -742,6 +742,12 @@ typedef struct AVInputFormat {
*/
int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t
min_ts, int64_t ts, int64_t max_ts, int flags);
+ /**
+ * Allows sending messages from application to device.
+ */
+ int (*control_message)(struct AVFormatContext *s, int type,
+ void *data, size_t data_size);
+
/**
* Returns device list with it properties.
* @see avdevice_list_devices() for more details.
--
2.28.0.windows.1
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