@@ -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)
{
@@ -68,18 +96,49 @@ 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)
{
@@ -331,7 +331,6 @@ 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).
@@ -427,7 +426,6 @@ 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[];
/**
@@ -447,7 +445,6 @@ 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);
@@ -457,9 +454,7 @@ 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.
@@ -583,6 +583,16 @@ 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
@@ -754,6 +764,17 @@ 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. The next few patches clean up the API and implement this capability for avdevice/dshow. Signed-off-by: Diederick Niehorster <dcnieho@gmail.com> --- libavdevice/avdevice.c | 71 ++++++++++++++++++++++++++++++++++++++---- libavdevice/avdevice.h | 5 --- libavformat/avformat.h | 21 +++++++++++++ 3 files changed, 86 insertions(+), 11 deletions(-)