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lavd/avfoundation: Introduce device alias 'none' to allow the user to record only audio or video. 

Changes the selection of a default device to none instead of the system default device.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Thilo Borgmann 2014-11-13 17:22:48 +01:00 committed by Michael Niedermayer
parent cde0ad5ea7
commit 2045334239
2 changed files with 11 additions and 7 deletions
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16
libavdevice/avfoundation.m
View File

@ -604,7 +604,10 @@ static int avf_read_header(AVFormatContext *s)
goto fail;
}
} else if (ctx->video_filename &&
strncmp(ctx->video_filename, "default", 7)) {
strncmp(ctx->video_filename, "none", 4)) {
if (!strncmp(ctx->video_filename, "default", 7)) {
video_device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
} else {
// looking for video inputs
for (AVCaptureDevice *device in video_devices) {
if (!strncmp(ctx->video_filename, [[device localizedName] UTF8String], strlen(ctx->video_filename))) {
@ -626,13 +629,12 @@ static int avf_read_header(AVFormatContext *s)
}
}
#endif
}
if (!video_device) {
av_log(ctx, AV_LOG_ERROR, "Video device not found\n");
goto fail;
}
} else {
video_device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
}
// get audio device
@ -646,7 +648,10 @@ static int avf_read_header(AVFormatContext *s)
audio_device = [devices objectAtIndex:ctx->audio_device_index];
} else if (ctx->audio_filename &&
strncmp(ctx->audio_filename, "default", 7)) {
strncmp(ctx->audio_filename, "none", 4)) {
if (!strncmp(ctx->audio_filename, "default", 7)) {
audio_device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
} else {
NSArray *devices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeAudio];
for (AVCaptureDevice *device in devices) {
@ -655,13 +660,12 @@ static int avf_read_header(AVFormatContext *s)
break;
}
}
}
if (!audio_device) {
av_log(ctx, AV_LOG_ERROR, "Audio device not found\n");
goto fail;
}
} else {
audio_device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];
}
// Video nor Audio capture device not found, looking for AVMediaTypeVideo/Audio

2
libavdevice/version.h
View File

@ -28,7 +28,7 @@
#include "libavutil/version.h"
#define LIBAVDEVICE_VERSION_MAJOR 56
#define LIBAVDEVICE_VERSION_MINOR 2
#define LIBAVDEVICE_VERSION_MINOR 3
#define LIBAVDEVICE_VERSION_MICRO 100
#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \