@@ -14,6 +14,10 @@ libavutil: 2021-04-27
API changes, most recent first:
+2021-xx-xx - xxxxxxxxxx - lavd 58.xx.100 - avdevice.h
+ Un-deprecated avdevice_capabilities_create() and
+ avdevice_capabilities_free().
+
2021-04-27 - cb3ac722f4 - lavc 59.0.100 - avcodec.h
Constified AVCodecParserContext.parser.
@@ -27,11 +27,39 @@
#include "libavutil/ffversion.h"
const char av_device_ffversion[] = "FFmpeg version " FFMPEG_VERSION;
-#if FF_API_DEVICE_CAPABILITIES
+#define E AV_OPT_FLAG_ENCODING_PARAM
+#define D AV_OPT_FLAG_DECODING_PARAM
+#define A AV_OPT_FLAG_AUDIO_PARAM
+#define V AV_OPT_FLAG_VIDEO_PARAM
+#define OFFSET(x) offsetof(AVDeviceCapabilitiesQuery, x)
+
const AVOption av_device_capabilities[] = {
+ { "codec", "codec", OFFSET(codec), AV_OPT_TYPE_INT,
+ {.i64 = AV_CODEC_ID_NONE}, AV_CODEC_ID_NONE, INT_MAX, E|D|A|V },
+ { "sample_format", "sample format", OFFSET(sample_format), AV_OPT_TYPE_SAMPLE_FMT,
+ {.i64 = AV_SAMPLE_FMT_NONE}, AV_SAMPLE_FMT_NONE, INT_MAX, E|D|A },
+ { "sample_rate", "sample rate", OFFSET(sample_rate), AV_OPT_TYPE_INT,
+ {.i64 = -1}, -1, INT_MAX, E|D|A },
+ { "channels", "channels", OFFSET(channels), AV_OPT_TYPE_INT,
+ {.i64 = -1}, -1, INT_MAX, E|D|A },
+ { "channel_layout", "channel layout", OFFSET(channel_layout), AV_OPT_TYPE_CHANNEL_LAYOUT,
+ {.i64 = -1}, -1, INT_MAX, E|D|A },
+ { "pixel_format", "pixel format", OFFSET(pixel_format), AV_OPT_TYPE_PIXEL_FMT,
+ {.i64 = AV_PIX_FMT_NONE}, AV_PIX_FMT_NONE, INT_MAX, E|D|V },
+ { "window_size", "window size", OFFSET(window_width), AV_OPT_TYPE_IMAGE_SIZE,
+ {.str = NULL}, -1, INT_MAX, E|D|V },
+ { "frame_size", "frame size", OFFSET(frame_width), AV_OPT_TYPE_IMAGE_SIZE,
+ {.str = NULL}, -1, INT_MAX, E|D|V },
+ { "fps", "fps", OFFSET(fps), AV_OPT_TYPE_RATIONAL,
+ {.dbl = -1}, -1, INT_MAX, E|D|V },
{ NULL }
};
-#endif
+
+#undef E
+#undef D
+#undef A
+#undef V
+#undef OFFSET
unsigned avdevice_version(void)
{
@@ -66,18 +94,49 @@ int avdevice_dev_to_app_control_message(struct AVFormatContext *s, enum AVDevToA
return s->control_message_cb(s, type, data, data_size);
}
-#if FF_API_DEVICE_CAPABILITIES
int avdevice_capabilities_create(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s,
AVDictionary **device_options)
{
- return AVERROR(ENOSYS);
+ int ret;
+ av_assert0(s && caps);
+ av_assert0(s->iformat || s->oformat);
+ if ((s->oformat && !s->oformat->create_device_capabilities) ||
+ (s->iformat && !s->iformat->create_device_capabilities))
+ return AVERROR(ENOSYS);
+ *caps = av_mallocz(sizeof(**caps));
+ if (!(*caps))
+ return AVERROR(ENOMEM);
+ (*caps)->device_context = s;
+ if (((ret = av_opt_set_dict(s->priv_data, device_options)) < 0))
+ goto fail;
+ if (s->iformat) {
+ if ((ret = s->iformat->create_device_capabilities(s, *caps)) < 0)
+ goto fail;
+ } else {
+ if ((ret = s->oformat->create_device_capabilities(s, *caps)) < 0)
+ goto fail;
+ }
+ av_opt_set_defaults(*caps);
+ return 0;
+ fail:
+ av_freep(caps);
+ return ret;
}
void avdevice_capabilities_free(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s)
{
- return;
+ if (!s || !caps || !(*caps))
+ return;
+ av_assert0(s->iformat || s->oformat);
+ if (s->iformat) {
+ if (s->iformat->free_device_capabilities)
+ s->iformat->free_device_capabilities(s, *caps);
+ } else {
+ if (s->oformat->free_device_capabilities)
+ s->oformat->free_device_capabilities(s, *caps);
+ }
+ av_freep(caps);
}
-#endif
int avdevice_list_devices(AVFormatContext *s, AVDeviceInfoList **device_list)
{
@@ -321,7 +321,6 @@ int avdevice_dev_to_app_control_message(struct AVFormatContext *s,
enum AVDevToAppMessageType type,
void *data, size_t data_size);
-#if FF_API_DEVICE_CAPABILITIES
/**
* Following API allows user to probe device capabilities (supported codecs,
* pixel formats, sample formats, resolutions, channel counts, etc).
@@ -417,7 +416,6 @@ typedef struct AVDeviceCapabilitiesQuery {
/**
* AVOption table used by devices to implement device capabilities API. Should not be used by a user.
*/
-attribute_deprecated
extern const AVOption av_device_capabilities[];
/**
@@ -437,7 +435,6 @@ extern const AVOption av_device_capabilities[];
*
* @return >= 0 on success, negative otherwise.
*/
-attribute_deprecated
int avdevice_capabilities_create(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s,
AVDictionary **device_options);
@@ -447,9 +444,7 @@ int avdevice_capabilities_create(AVDeviceCapabilitiesQuery **caps, AVFormatConte
* @param caps Device capabilities data to be freed.
* @param s Context of the device.
*/
-attribute_deprecated
void avdevice_capabilities_free(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s);
-#endif
/**
* Structure describes basic parameters of the device.
@@ -28,7 +28,7 @@
#include "libavutil/version.h"
#define LIBAVDEVICE_VERSION_MAJOR 59
-#define LIBAVDEVICE_VERSION_MINOR 0
+#define LIBAVDEVICE_VERSION_MINOR 1
#define LIBAVDEVICE_VERSION_MICRO 100
#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \
@@ -46,8 +46,5 @@
* dropped at a future version bump. The defines themselves are not part of
* the public API and may change, break or disappear at any time.
*/
-#ifndef FF_API_DEVICE_CAPABILITIES
-#define FF_API_DEVICE_CAPABILITIES (LIBAVDEVICE_VERSION_MAJOR < 60)
-#endif
#endif /* AVDEVICE_VERSION_H */
@@ -578,6 +578,16 @@ typedef struct AVOutputFormat {
* @see avdevice_list_devices() for more details.
*/
int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list);
+ /**
+ * Initialize device capabilities submodule.
+ * @see avdevice_capabilities_create() for more details.
+ */
+ int (*create_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
+ /**
+ * Free device capabilities submodule.
+ * @see avdevice_capabilities_free() for more details.
+ */
+ int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
enum AVCodecID data_codec; /**< default data codec */
/**
* Initialize format. May allocate data here, and set any AVFormatContext or
@@ -743,6 +753,17 @@ typedef struct AVInputFormat {
*/
int (*get_device_list)(struct AVFormatContext *s, struct AVDeviceInfoList *device_list);
+ /**
+ * Initialize device capabilities submodule.
+ * @see avdevice_capabilities_create() for more details.
+ */
+ int (*create_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
+
+ /**
+ * Free device capabilities submodule.
+ * @see avdevice_capabilities_free() for more details.
+ */
+ int (*free_device_capabilities)(struct AVFormatContext *s, struct AVDeviceCapabilitiesQuery *caps);
} AVInputFormat;
/**
* @}
This reverts commit 4f49ca7bbc75a9db4cdf93f27f95a668c751f160. This patch series will implement this capability for avdevice/dshow, enabling configuration discovery of DirectShow devices through the API, which is important for my use case. It enables making proper GUIs presenting users with options, instead of asking them to discover a dshow devices capabilities through the list_options option with an ffmpeg tool, and listing what they want to configure in text boxes. Signed-off-by: Diederick Niehorster <dcnieho@gmail.com> --- doc/APIchanges | 4 +++ libavdevice/avdevice.c | 71 ++++++++++++++++++++++++++++++++++++++---- libavdevice/avdevice.h | 5 --- libavdevice/version.h | 5 +-- libavformat/avformat.h | 21 +++++++++++++ 5 files changed, 91 insertions(+), 15 deletions(-)