*/
#include "libavutil/avassert.h"
+#include "libavutil/samplefmt.h"
+#include "libavutil/pixfmt.h"
+#include "libavcodec/avcodec.h"
#include "avdevice.h"
#include "config.h"
+#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_INT,
+ {.i64 = AV_SAMPLE_FMT_NONE}, -1, 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_INT64,
+ {.i64 = -1}, -1, INT_MAX, E|D|A },
+ { "pixel_format", "pixel format", OFFSET(pixel_format), AV_OPT_TYPE_INT,
+ {.i64 = AV_PIX_FMT_NONE}, -1, 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 }
+};
+
+#undef E
+#undef D
+#undef A
+#undef V
+#undef OFFSET
+
unsigned avdevice_version(void)
{
av_assert0(LIBAVDEVICE_VERSION_MICRO >= 100);
return s->control_message_cb(s, type, data, data_size);
}
+int avdevice_capabilities_create(AVDeviceCapabilitiesQuery **caps, AVFormatContext *s,
+ AVDictionary **device_options)
+{
+ 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)
+{
+ 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);
+}
+
int avdevice_list_devices(AVFormatContext *s, AVDeviceInfoList **device_list)
{
int ret;
*device_list = av_mallocz(sizeof(AVDeviceInfoList));
if (!(*device_list))
return AVERROR(ENOMEM);
+ /* no default device by default */
+ (*device_list)->default_device = -1;
if (s->oformat)
ret = s->oformat->get_device_list(s, *device_list);
else