2017-07-28 16:34 GMT+08:00 Steven Liu <lingjiujia...@gmail.com>:
> 2017-07-28 15:55 GMT+08:00 sharpbai <sharp...@gmail.com>:
>> From: sharpbai <tian....@duobei.com>
>>
>> feature: add scaleFactor attribute for avfoundation
>> added by: siyuan.w...@duobei.com
>> added by: yiren...@duobei.com
>> ---
>> libavdevice/avfoundation.m | 5 +++++
>> 1 file changed, 5 insertions(+)
>>
>> diff --git a/libavdevice/avfoundation.m b/libavdevice/avfoundation.m
>> index e2ddf47..22cff1f 100644
>> --- a/libavdevice/avfoundation.m
>> +++ b/libavdevice/avfoundation.m
>> @@ -96,6 +96,7 @@ typedef struct
>>
>> int capture_cursor;
>> int capture_mouse_clicks;
>> + float scaleFactor;
I saw the method from :
https://developer.apple.com/documentation/avfoundation/avcapturescreeninput/1390311-scalefactor
said:
SDK
macOS 10.7+
I cannot sure if this attribute need check about the depend version.
>>
>> int list_devices;
>> int video_device_index;
>> @@ -748,6 +749,9 @@ static int avf_read_header(AVFormatContext *s)
>> } else {
>> capture_screen_input.capturesMouseClicks = NO;
>> }
>> + if (ctx->scaleFactor != 1 && ctx->scaleFactor > 0) {
>> + capture_screen_input.scaleFactor = ctx->scaleFactor;
>> + }
>>
>> video_device = (AVCaptureDevice*) capture_screen_input;
>> capture_screen = 1;
>> @@ -1025,6 +1029,7 @@ static const AVOption options[] = {
>> { "video_size", "set video size", offsetof(AVFContext, width),
>> AV_OPT_TYPE_IMAGE_SIZE, {.str = NULL}, 0, 0, AV_OPT_FLAG_DECODING_PARAM },
>> { "capture_cursor", "capture the screen cursor", offsetof(AVFContext,
>> capture_cursor), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM
>> },
>> { "capture_mouse_clicks", "capture the screen mouse clicks",
>> offsetof(AVFContext, capture_mouse_clicks), AV_OPT_TYPE_INT, {.i64=0}, 0, 1,
>> AV_OPT_FLAG_DECODING_PARAM },
>> + { "scaleFactor", "scale screen factor range", offsetof(AVFContext,
>> scaleFactor), AV_OPT_TYPE_FLOAT, {.i64=1}, 0, 2, AV_OPT_FLAG_DECODING_PARAM
>> },
>>
>> { NULL },
>> };
>> --
>> 2.2.1
>>
>> _______________________________________________
>> ffmpeg-devel mailing list
>> ffmpeg-devel@ffmpeg.org
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> Add the option into document please.
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