#include "avdevice.h"
/* devices */
-extern AVInputFormat ff_alsa_demuxer;
-extern AVOutputFormat ff_alsa_muxer;
-extern AVInputFormat ff_android_camera_demuxer;
-extern AVInputFormat ff_avfoundation_demuxer;
-extern AVInputFormat ff_bktr_demuxer;
-extern AVOutputFormat ff_caca_muxer;
-extern AVInputFormat ff_decklink_demuxer;
-extern AVOutputFormat ff_decklink_muxer;
-extern AVInputFormat ff_libndi_newtek_demuxer;
-extern AVOutputFormat ff_libndi_newtek_muxer;
-extern AVInputFormat ff_dshow_demuxer;
-extern AVInputFormat ff_fbdev_demuxer;
-extern AVOutputFormat ff_fbdev_muxer;
-extern AVInputFormat ff_gdigrab_demuxer;
-extern AVInputFormat ff_iec61883_demuxer;
-extern AVInputFormat ff_jack_demuxer;
-extern AVInputFormat ff_kmsgrab_demuxer;
-extern AVInputFormat ff_lavfi_demuxer;
-extern AVInputFormat ff_openal_demuxer;
-extern AVOutputFormat ff_opengl_muxer;
-extern AVInputFormat ff_oss_demuxer;
-extern AVOutputFormat ff_oss_muxer;
-extern AVInputFormat ff_pulse_demuxer;
-extern AVOutputFormat ff_pulse_muxer;
-extern AVOutputFormat ff_sdl2_muxer;
-extern AVInputFormat ff_sndio_demuxer;
-extern AVOutputFormat ff_sndio_muxer;
-extern AVInputFormat ff_v4l2_demuxer;
-extern AVOutputFormat ff_v4l2_muxer;
-extern AVInputFormat ff_vfwcap_demuxer;
-extern AVInputFormat ff_xcbgrab_demuxer;
-extern AVOutputFormat ff_xv_muxer;
+extern const AVInputFormat ff_alsa_demuxer;
+extern const AVOutputFormat ff_alsa_muxer;
+extern const AVInputFormat ff_android_camera_demuxer;
+extern const AVOutputFormat ff_audiotoolbox_muxer;
+extern const AVInputFormat ff_avfoundation_demuxer;
+extern const AVInputFormat ff_bktr_demuxer;
+extern const AVOutputFormat ff_caca_muxer;
+extern const AVInputFormat ff_decklink_demuxer;
+extern const AVOutputFormat ff_decklink_muxer;
+extern const AVInputFormat ff_dshow_demuxer;
+extern const AVInputFormat ff_fbdev_demuxer;
+extern const AVOutputFormat ff_fbdev_muxer;
+extern const AVInputFormat ff_gdigrab_demuxer;
+extern const AVInputFormat ff_iec61883_demuxer;
+extern const AVInputFormat ff_jack_demuxer;
+extern const AVInputFormat ff_kmsgrab_demuxer;
+extern const AVInputFormat ff_lavfi_demuxer;
+extern const AVInputFormat ff_openal_demuxer;
+extern const AVOutputFormat ff_opengl_muxer;
+extern const AVInputFormat ff_oss_demuxer;
+extern const AVOutputFormat ff_oss_muxer;
+extern const AVInputFormat ff_pulse_demuxer;
+extern const AVOutputFormat ff_pulse_muxer;
+extern const AVOutputFormat ff_sdl2_muxer;
+extern const AVInputFormat ff_sndio_demuxer;
+extern const AVOutputFormat ff_sndio_muxer;
+extern const AVInputFormat ff_v4l2_demuxer;
+extern const AVOutputFormat ff_v4l2_muxer;
+extern const AVInputFormat ff_vfwcap_demuxer;
+extern const AVInputFormat ff_xcbgrab_demuxer;
+extern const AVOutputFormat ff_xv_muxer;
/* external libraries */
-extern AVInputFormat ff_libcdio_demuxer;
-extern AVInputFormat ff_libdc1394_demuxer;
+extern const AVInputFormat ff_libcdio_demuxer;
+extern const AVInputFormat ff_libdc1394_demuxer;
#include "libavdevice/outdev_list.c"
#include "libavdevice/indev_list.c"
{
avpriv_register_devices(outdev_list, indev_list);
}
+
+static const void *next_input(const AVInputFormat *prev, AVClassCategory c2)
+{
+ const AVClass *pc;
+ const AVClassCategory c1 = AV_CLASS_CATEGORY_DEVICE_INPUT;
+ AVClassCategory category = AV_CLASS_CATEGORY_NA;
+ const AVInputFormat *fmt = NULL;
+ int i = 0;
+
+ while (prev && (fmt = indev_list[i])) {
+ i++;
+ if (prev == fmt)
+ break;
+ }
+
+ do {
+ fmt = indev_list[i++];
+ if (!fmt)
+ break;
+ pc = fmt->priv_class;
+ if (!pc)
+ continue;
+ category = pc->category;
+ } while (category != c1 && category != c2);
+ return fmt;
+}
+
+static const void *next_output(const AVOutputFormat *prev, AVClassCategory c2)
+{
+ const AVClass *pc;
+ const AVClassCategory c1 = AV_CLASS_CATEGORY_DEVICE_OUTPUT;
+ AVClassCategory category = AV_CLASS_CATEGORY_NA;
+ const AVOutputFormat *fmt = NULL;
+ int i = 0;
+
+ while (prev && (fmt = outdev_list[i])) {
+ i++;
+ if (prev == fmt)
+ break;
+ }
+
+ do {
+ fmt = outdev_list[i++];
+ if (!fmt)
+ break;
+ pc = fmt->priv_class;
+ if (!pc)
+ continue;
+ category = pc->category;
+ } while (category != c1 && category != c2);
+ return fmt;
+}
+
+const AVInputFormat *av_input_audio_device_next(const AVInputFormat *d)
+{
+ return next_input(d, AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT);
+}
+
+const AVInputFormat *av_input_video_device_next(const AVInputFormat *d)
+{
+ return next_input(d, AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT);
+}
+
+const AVOutputFormat *av_output_audio_device_next(const AVOutputFormat *d)
+{
+ return next_output(d, AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT);
+}
+
+const AVOutputFormat *av_output_video_device_next(const AVOutputFormat *d)
+{
+ return next_output(d, AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT);
+}