From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 5FD0440BEF for ; Tue, 28 Dec 2021 22:52:36 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id BD5FE68AFFB; Wed, 29 Dec 2021 00:52:34 +0200 (EET) Received: from mail-qt1-f179.google.com (mail-qt1-f179.google.com [209.85.160.179]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 05722689EC9 for ; Wed, 29 Dec 2021 00:52:28 +0200 (EET) Received: by mail-qt1-f179.google.com with SMTP id 8so17444157qtx.5 for ; Tue, 28 Dec 2021 14:52:27 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:content-transfer-encoding:mime-version :subject:message-id:date:to; bh=pyuccaGHYSZMsTRmPDF7i5DBWZc4pu3GMHMGlbcmv8w=; b=fsKoGogMH4QFN2ILEN2xohLTUa8772AmeVuNl4CgLEm8TAYz+egH5XMfM0nYpgCIoG kSSGuFlKLLpuV9OqqummOxWFFqCG69xhWwCMEAZCFk+s3Ya8y5u9ifyGNEsL8jqvS+1f GneXl48Jxc63r+FU4wPbwZQ2fIQWoFMmjDg17lW7PTPCDNYge0202tjS6xLILirLF3q5 EDIU7Oa/JViWk53zTD6LyZ+lnQUoLLoHp8nzFzK3GWa5yvIvb5QCFQu1q87LkFRos6qy z/BHVg89z+HYkPpt2WSKkTbv4NEoqW63udyw/s6KQk2rclO68Sp/PpS9MnBanmKqumfY Mucg== X-Gm-Message-State: AOAM5320q63p5UzHWR72SJCpYYHusCy6r3pcT54dDxdel9sZ6strrsS8 761es8BGbWh7dk0PiSgPNM3qBiowx7Pktw== X-Google-Smtp-Source: ABdhPJyp728UXCCqQ6afOB1rYojTW6EL5Nj/+JccK9fcCM4M8j4zjHTJUb+MXjL26QdXztP2KtM5Ww== X-Received: by 2002:ac8:5bca:: with SMTP id b10mr20665809qtb.170.1640731946326; Tue, 28 Dec 2021 14:52:26 -0800 (PST) Received: from smtpclient.apple ([172.58.159.253]) by smtp.gmail.com with ESMTPSA id bp18sm16715609qkb.39.2021.12.28.14.52.25 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 28 Dec 2021 14:52:26 -0800 (PST) From: Romain Beauxis Mime-Version: 1.0 (Mac OS X Mail 15.0 \(3693.40.0.1.81\)) Message-Id: <1144CFE5-12E1-46C7-9858-C50AEB5B6A92@rastageeks.org> Date: Tue, 28 Dec 2021 16:52:23 -0600 To: FFmpeg development discussions and patches X-Mailer: Apple Mail (2.3693.40.0.1.81) Subject: [FFmpeg-devel] [PATCH v6 03/03] libavdevice/avfoundation.m: Allow to select devices by unique ID X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: This is the third patch of a series of 3 that cleanup and enhance the avfoundation implementation for libavdevice. Changes: v2: None v3: * Switched unique ID to use system-prodvided unique ID * Implemented unique IDs for screen capture v4: Cleanup v5: Fix indentation/wrapping V6: None This patch adds a unique ID to avfoundation devices. This is needed because device index can change while the machine is running when devices are plugged or unplugged and device names can be tricky to use with localization and etc. Example of output: ./ffmpeg -f avfoundation -list_devices true -i "" [...] [AVFoundation indev @ 0x158705230] AVFoundation video devices: [AVFoundation indev @ 0x158705230] [0] FaceTime HD Camera (ID: 47B4B64B70674B9CAD2BAE273A71F4B5) [AVFoundation indev @ 0x158705230] [1] Capture screen 0 (ID: AvfilterAvfoundationCaptureScreen1) [AVFoundation indev @ 0x158705230] AVFoundation audio devices: [AVFoundation indev @ 0x158705230] [0] Loopback Audio (ID: com.rogueamoeba.Loopback.A5668B36-711E-4DF5-8A8D-7148508C735B) [AVFoundation indev @ 0x158705230] [1] MacBook Pro Microphone (ID:BuiltInMicrophoneDevice) Notes: * Unique names do not seem to follow any specific pattern. I have used one similar to the builtin microphone for screen capture * The : substitution is actually required. The loopback device above did have it in its name. Signed-off-by: Romain Beauxis --- doc/indevs.texi | 6 ++-- libavdevice/avfoundation.m | 72 +++++++++++++++++++++++++++++--------- 2 files changed, 60 insertions(+), 18 deletions(-) diff --git a/doc/indevs.texi b/doc/indevs.texi index 9d8020311a..858c0fa4e4 100644 --- a/doc/indevs.texi +++ b/doc/indevs.texi @@ -114,7 +114,7 @@ The input filename has to be given in the following syntax: -i "[[VIDEO]:[AUDIO]]" @end example The first entry selects the video input while the latter selects the audio input. -The stream has to be specified by the device name or the device index as shown by the device list. +The stream has to be specified by the device name, index or ID as shown by the device list. Alternatively, the video and/or audio input device can be chosen by index using the @option{ -video_device_index @@ -127,7 +127,9 @@ and/or device name or index given in the input filename. All available devices can be enumerated by using @option{-list_devices true}, listing -all device names and corresponding indices. +all device names, corresponding indices and IDs, when available. Device name can be +tricky to use when localized and device index can change when devices are plugged or unplugged. A device +hash, when available, uniquely identifies a device and should not change over time. There are two device name aliases: @table @code diff --git a/libavdevice/avfoundation.m b/libavdevice/avfoundation.m index f7bd5be404..fda5a4d261 100644 --- a/libavdevice/avfoundation.m +++ b/libavdevice/avfoundation.m @@ -39,6 +39,8 @@ #include "libavutil/imgutils.h" #include "avdevice.h" +#define CLEANUP_DEVICE_ID(s) [[s stringByReplacingOccurrencesOfString:@":" withString:@"."] UTF8String] + static const int avf_time_base = 1000000; static const AVRational avf_time_base_q = { @@ -797,21 +799,23 @@ static int avf_read_header(AVFormatContext *s) int index = 0; av_log(ctx, AV_LOG_INFO, "AVFoundation video devices:\n"); for (AVCaptureDevice *device in devices) { - const char *name = [[device localizedName] UTF8String]; - index = [devices indexOfObject:device]; - av_log(ctx, AV_LOG_INFO, "[%d] %s\n", index, name); + const char *name = [[device localizedName] UTF8String]; + const char *uniqueId = CLEANUP_DEVICE_ID([device uniqueID]); + index = [devices indexOfObject:device]; + av_log(ctx, AV_LOG_INFO, "[%d] %s (ID: %s)\n", index, name, uniqueId); } for (AVCaptureDevice *device in devices_muxed) { - const char *name = [[device localizedName] UTF8String]; - index = [devices count] + [devices_muxed indexOfObject:device]; - av_log(ctx, AV_LOG_INFO, "[%d] %s\n", index, name); + const char *name = [[device localizedName] UTF8String]; + const char *uniqueId = CLEANUP_DEVICE_ID([device uniqueID]); + index = [devices count] + [devices_muxed indexOfObject:device]; + av_log(ctx, AV_LOG_INFO, "[%d] %s (ID: %s)\n", index, name, uniqueId); } #if !TARGET_OS_IPHONE && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070 if (num_screens > 0) { CGDirectDisplayID screens[num_screens]; CGGetActiveDisplayList(num_screens, screens, &num_screens); for (int i = 0; i < num_screens; i++) { - av_log(ctx, AV_LOG_INFO, "[%d] Capture screen %d\n", ctx->num_video_devices + i, i); + av_log(ctx, AV_LOG_INFO, "[%d] Capture screen %d (ID: AvfilterAvfoundationCaptureScreen%d)\n", ctx->num_video_devices + i, i, screens[i]); } } #endif @@ -819,9 +823,10 @@ static int avf_read_header(AVFormatContext *s) av_log(ctx, AV_LOG_INFO, "AVFoundation audio devices:\n"); devices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeAudio]; for (AVCaptureDevice *device in devices) { - const char *name = [[device localizedName] UTF8String]; - int index = [devices indexOfObject:device]; - av_log(ctx, AV_LOG_INFO, "[%d] %s\n", index, name); + const char *name = [[device localizedName] UTF8String]; + const char *uniqueId = CLEANUP_DEVICE_ID([device uniqueID]); + int index = [devices indexOfObject:device]; + av_log(ctx, AV_LOG_INFO, "[%d] %s (ID: %s)\n", index, name, uniqueId); } goto fail; } @@ -883,14 +888,29 @@ static int avf_read_header(AVFormatContext *s) } else { // looking for video inputs for (AVCaptureDevice *device in devices) { - if (!strncmp(ctx->video_filename, [[device localizedName] UTF8String], strlen(ctx->video_filename))) { + const char *name = [[device localizedName] UTF8String]; + if (!strncmp(ctx->video_filename, name, strlen(ctx->video_filename))) { + video_device = device; + break; + } + + const char *uniqueId = CLEANUP_DEVICE_ID([device uniqueID]); + if (!strncmp(ctx->video_filename, uniqueId, strlen(ctx->video_filename))) { video_device = device; break; } } // looking for muxed inputs for (AVCaptureDevice *device in devices_muxed) { - if (!strncmp(ctx->video_filename, [[device localizedName] UTF8String], strlen(ctx->video_filename))) { + const char *name = [[device localizedName] UTF8String]; + if (!strncmp(ctx->video_filename, name, strlen(ctx->video_filename))) { + video_device = device; + ctx->video_is_muxed = 1; + break; + } + + const char *uniqueId = CLEANUP_DEVICE_ID([device uniqueID]); + if (!strncmp(ctx->video_filename, uniqueId, strlen(ctx->video_filename))) { video_device = device; ctx->video_is_muxed = 1; break; @@ -901,10 +921,23 @@ static int avf_read_header(AVFormatContext *s) // looking for screen inputs if (!video_device) { int idx; + CGDirectDisplayID screens[num_screens]; + CGGetActiveDisplayList(num_screens, screens, &num_screens); + AVCaptureScreenInput* capture_screen_input = NULL; + if(sscanf(ctx->video_filename, "Capture screen %d", &idx) && idx < num_screens) { - CGDirectDisplayID screens[num_screens]; - CGGetActiveDisplayList(num_screens, screens, &num_screens); - AVCaptureScreenInput* capture_screen_input = [[[AVCaptureScreenInput alloc] initWithDisplayID:screens[idx]] autorelease]; + capture_screen_input = [[[AVCaptureScreenInput alloc] initWithDisplayID:screens[idx]] autorelease]; + } + + if(sscanf(ctx->video_filename, "AvfilterAvfoundationCaptureScreen%d", &idx)) { + for (int i = 0; i < num_screens; i++) { + if (screens[i] == idx) { + capture_screen_input = [[[AVCaptureScreenInput alloc] initWithDisplayID:idx] autorelease]; + } + } + } + + if (capture_screen_input) { video_device = (AVCaptureDevice*) capture_screen_input; ctx->video_device_index = ctx->num_video_devices + idx; ctx->video_is_screen = 1; @@ -955,7 +988,14 @@ static int avf_read_header(AVFormatContext *s) NSArray *devices = [AVCaptureDevice devicesWithMediaType:AVMediaTypeAudio]; for (AVCaptureDevice *device in devices) { - if (!strncmp(ctx->audio_filename, [[device localizedName] UTF8String], strlen(ctx->audio_filename))) { + const char *name = [[device localizedName] UTF8String]; + if (!strncmp(ctx->audio_filename, name, strlen(ctx->audio_filename))) { + audio_device = device; + break; + } + + const char *uniqueId = CLEANUP_DEVICE_ID([device uniqueID]); + if (!strncmp(ctx->audio_filename, uniqueId, strlen(ctx->audio_filename))) { audio_device = device; break; } -- 2.32.0 (Apple Git-132) _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".