lavd: drop QTKit indev

QTKit has been deprecated in favor of AVFoundation for years, and we
have an avfoundation input device.

See https://developer.apple.com/documentation/qtkit

Changelog

@@ -41,6 +41,7 @@ version <next>:
 - FITS demuxer and decoder
 - FITS muxer and encoder
 - add --disable-autodetect build switch
+- drop deprecated qtkit input device (use avfoundation instead)
 
 version 3.3:
 - CrystalHD decoder moved to new decode API

MAINTAINERS

@@ -291,7 +291,6 @@ libavdevice
   libdc1394.c                           Roman Shaposhnik
   opengl_enc.c                          Lukasz Marek
   pulse_audio_enc.c                     Lukasz Marek
-  qtkit.m                               Thilo Borgmann
   sdl                                   Stefano Sabatini
   sdl2.c                                Josh de Kock
   v4l2.c                                Giorgio Vazzana

configure

@@ -3043,8 +3043,6 @@ oss_indev_deps_any="soundcard_h sys_soundcard_h"
 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
 pulse_indev_deps="libpulse"
 pulse_outdev_deps="libpulse"
-qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
-qtkit_indev_select="qtkit"
 sdl2_outdev_deps="sdl2"
 sndio_indev_deps="sndio"
 sndio_outdev_deps="sndio"
@@ -6010,7 +6008,6 @@ enabled openssl           && { use_pkg_config openssl openssl/ssl.h OPENSSL_init
                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
                                die "ERROR: openssl not found"; }
-enabled qtkit_indev      && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
 
 if enabled gcrypt; then
     GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"

doc/indevs.texi

@@ -68,7 +68,6 @@ Set the number of channels. Default is 2.
 AVFoundation input device.
 
 AVFoundation is the currently recommended framework by Apple for streamgrabbing on OSX >= 10.7 as well as on iOS.
-The older QTKit framework has been marked deprecated since OSX version 10.7.
 
 The input filename has to be given in the following syntax:
 @example
@@ -1141,49 +1140,6 @@ Record a stream from default device:
 ffmpeg -f pulse -i default /tmp/pulse.wav
 @end example
 
-@section qtkit
-
-QTKit input device.
-
-The filename passed as input is parsed to contain either a device name or index.
-The device index can also be given by using -video_device_index.
-A given device index will override any given device name.
-If the desired device consists of numbers only, use -video_device_index to identify it.
-The default device will be chosen if an empty string  or the device name "default" is given.
-The available devices can be enumerated by using -list_devices.
-
-@example
-ffmpeg -f qtkit -i "0" out.mpg
-@end example
-
-@example
-ffmpeg -f qtkit -video_device_index 0 -i "" out.mpg
-@end example
-
-@example
-ffmpeg -f qtkit -i "default" out.mpg
-@end example
-
-@example
-ffmpeg -f qtkit -list_devices true -i ""
-@end example
-
-@subsection Options
-
-@table @option
-
-@item frame_rate
-Set frame rate. Default is 30.
-
-@item list_devices
-If set to @code{true}, print a list of devices and exit. Default is
-@code{false}.
-
-@item video_device_index
-Select the video device by index for devices with the same name (starts at 0).
-
-@end table
-
 @section sndio
 
 sndio input device.

libavdevice/Makefile

@@ -41,7 +41,6 @@ OBJS-$(CONFIG_PULSE_INDEV)               += pulse_audio_dec.o \
                                             pulse_audio_common.o timefilter.o
 OBJS-$(CONFIG_PULSE_OUTDEV)              += pulse_audio_enc.o \
                                             pulse_audio_common.o
-OBJS-$(CONFIG_QTKIT_INDEV)               += qtkit.o
 OBJS-$(CONFIG_SDL2_OUTDEV)               += sdl2.o
 OBJS-$(CONFIG_SNDIO_INDEV)               += sndio_dec.o sndio.o
 OBJS-$(CONFIG_SNDIO_OUTDEV)              += sndio_enc.o sndio.o

libavdevice/alldevices.c

@@ -58,7 +58,6 @@ static void register_all(void)
     REGISTER_OUTDEV  (OPENGL,           opengl);
     REGISTER_INOUTDEV(OSS,              oss);
     REGISTER_INOUTDEV(PULSE,            pulse);
-    REGISTER_INDEV   (QTKIT,            qtkit);
     REGISTER_OUTDEV  (SDL2,             sdl2);
     REGISTER_INOUTDEV(SNDIO,            sndio);
     REGISTER_INOUTDEV(V4L2,             v4l2);

libavdevice/qtkit.m

@@ -1,362 +0,0 @@
-/*
- * QTKit input device
- * Copyright (c) 2013 Vadim Kalinsky <vadim@kalinsky.ru>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * QTKit input device
- * @author Vadim Kalinsky <vadim@kalinsky.ru>
- */
-
-#if defined(__clang__)
-#pragma clang diagnostic ignored "-Wdeprecated-declarations"
-#endif
-
-#import <QTKit/QTKit.h>
-#include <pthread.h>
-
-#include "libavutil/pixdesc.h"
-#include "libavutil/opt.h"
-#include "libavformat/internal.h"
-#include "libavutil/internal.h"
-#include "libavutil/time.h"
-#include "avdevice.h"
-
-#define QTKIT_TIMEBASE 100
-
-static const AVRational kQTKitTimeBase_q = {
-    .num = 1,
-    .den = QTKIT_TIMEBASE
-};
-
-typedef struct
-{
-    AVClass*        class;
-
-    float           frame_rate;
-    int             frames_captured;
-    int64_t         first_pts;
-    pthread_mutex_t frame_lock;
-    pthread_cond_t  frame_wait_cond;
-    id              qt_delegate;
-
-    int             list_devices;
-    int             video_device_index;
-
-    QTCaptureSession*                 capture_session;
-    QTCaptureDecompressedVideoOutput* video_output;
-    CVImageBufferRef                  current_frame;
-} CaptureContext;
-
-static void lock_frames(CaptureContext* ctx)
-{
-    pthread_mutex_lock(&ctx->frame_lock);
-}
-
-static void unlock_frames(CaptureContext* ctx)
-{
-    pthread_mutex_unlock(&ctx->frame_lock);
-}
-
-/** FrameReciever class - delegate for QTCaptureSession
- */
-@interface FFMPEG_FrameReceiver : NSObject
-{
-    CaptureContext* _context;
-}
-
-- (id)initWithContext:(CaptureContext*)context;
-
-- (void)captureOutput:(QTCaptureOutput *)captureOutput
-  didOutputVideoFrame:(CVImageBufferRef)videoFrame
-     withSampleBuffer:(QTSampleBuffer *)sampleBuffer
-       fromConnection:(QTCaptureConnection *)connection;
-
-@end
-
-@implementation FFMPEG_FrameReceiver
-
-- (id)initWithContext:(CaptureContext*)context
-{
-    if (self = [super init]) {
-        _context = context;
-    }
-    return self;
-}
-
-- (void)captureOutput:(QTCaptureOutput *)captureOutput
-  didOutputVideoFrame:(CVImageBufferRef)videoFrame
-     withSampleBuffer:(QTSampleBuffer *)sampleBuffer
-       fromConnection:(QTCaptureConnection *)connection
-{
-    lock_frames(_context);
-    if (_context->current_frame != nil) {
-        CVBufferRelease(_context->current_frame);
-    }
-
-    _context->current_frame = CVBufferRetain(videoFrame);
-
-    pthread_cond_signal(&_context->frame_wait_cond);
-
-    unlock_frames(_context);
-
-    ++_context->frames_captured;
-}
-
-@end
-
-static void destroy_context(CaptureContext* ctx)
-{
-    [ctx->capture_session stopRunning];
-
-    [ctx->capture_session release];
-    [ctx->video_output    release];
-    [ctx->qt_delegate     release];
-
-    ctx->capture_session = NULL;
-    ctx->video_output    = NULL;
-    ctx->qt_delegate     = NULL;
-
-    pthread_mutex_destroy(&ctx->frame_lock);
-    pthread_cond_destroy(&ctx->frame_wait_cond);
-
-    if (ctx->current_frame)
-        CVBufferRelease(ctx->current_frame);
-}
-
-static int qtkit_read_header(AVFormatContext *s)
-{
-    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
-
-    CaptureContext* ctx = (CaptureContext*)s->priv_data;
-
-    ctx->first_pts = av_gettime();
-
-    pthread_mutex_init(&ctx->frame_lock, NULL);
-    pthread_cond_init(&ctx->frame_wait_cond, NULL);
-
-    // List devices if requested
-    if (ctx->list_devices) {
-        av_log(ctx, AV_LOG_INFO, "QTKit video devices:\n");
-        NSArray *devices = [QTCaptureDevice inputDevicesWithMediaType:QTMediaTypeVideo];
-        for (QTCaptureDevice *device in devices) {
-            const char *name = [[device localizedDisplayName] UTF8String];
-            int index  = [devices indexOfObject:device];
-            av_log(ctx, AV_LOG_INFO, "[%d] %s\n", index, name);
-        }
-        goto fail;
-    }
-
-    // Find capture device
-    QTCaptureDevice *video_device = nil;
-
-    // check for device index given in filename
-    if (ctx->video_device_index == -1) {
-        sscanf(s->filename, "%d", &ctx->video_device_index);
-    }
-
-    if (ctx->video_device_index >= 0) {
-        NSArray *devices = [QTCaptureDevice inputDevicesWithMediaType:QTMediaTypeVideo];
-
-        if (ctx->video_device_index >= [devices count]) {
-            av_log(ctx, AV_LOG_ERROR, "Invalid device index\n");
-            goto fail;
-        }
-
-        video_device = [devices objectAtIndex:ctx->video_device_index];
-    } else if (strncmp(s->filename, "",        1) &&
-               strncmp(s->filename, "default", 7)) {
-        NSArray *devices = [QTCaptureDevice inputDevicesWithMediaType:QTMediaTypeVideo];
-
-        for (QTCaptureDevice *device in devices) {
-            if (!strncmp(s->filename, [[device localizedDisplayName] UTF8String], strlen(s->filename))) {
-                video_device = device;
-                break;
-            }
-        }
-        if (!video_device) {
-            av_log(ctx, AV_LOG_ERROR, "Video device not found\n");
-            goto fail;
-        }
-    } else {
-        video_device = [QTCaptureDevice defaultInputDeviceWithMediaType:QTMediaTypeMuxed];
-    }
-
-    BOOL success = [video_device open:nil];
-
-    // Video capture device not found, looking for QTMediaTypeVideo
-    if (!success) {
-        video_device = [QTCaptureDevice defaultInputDeviceWithMediaType:QTMediaTypeVideo];
-        success      = [video_device open:nil];
-
-        if (!success) {
-            av_log(s, AV_LOG_ERROR, "No QT capture device found\n");
-            goto fail;
-        }
-    }
-
-    NSString* dev_display_name = [video_device localizedDisplayName];
-    av_log (s, AV_LOG_DEBUG, "'%s' opened\n", [dev_display_name UTF8String]);
-
-    // Initialize capture session
-    ctx->capture_session = [[QTCaptureSession alloc] init];
-
-    QTCaptureDeviceInput* capture_dev_input = [[[QTCaptureDeviceInput alloc] initWithDevice:video_device] autorelease];
-    success = [ctx->capture_session addInput:capture_dev_input error:nil];
-
-    if (!success) {
-        av_log (s, AV_LOG_ERROR, "Failed to add QT capture device to session\n");
-        goto fail;
-    }
-
-    // Attaching output
-    // FIXME: Allow for a user defined pixel format
-    ctx->video_output = [[QTCaptureDecompressedVideoOutput alloc] init];
-
-    NSDictionary *captureDictionary = [NSDictionary dictionaryWithObject:
-                                       [NSNumber numberWithUnsignedInt:kCVPixelFormatType_24RGB]
-                                       forKey:(id)kCVPixelBufferPixelFormatTypeKey];
-
-    [ctx->video_output setPixelBufferAttributes:captureDictionary];
-
-    ctx->qt_delegate = [[FFMPEG_FrameReceiver alloc] initWithContext:ctx];
-
-    [ctx->video_output setDelegate:ctx->qt_delegate];
-    [ctx->video_output setAutomaticallyDropsLateVideoFrames:YES];
-    [ctx->video_output setMinimumVideoFrameInterval:1.0/ctx->frame_rate];
-
-    success = [ctx->capture_session addOutput:ctx->video_output error:nil];
-
-    if (!success) {
-        av_log (s, AV_LOG_ERROR, "can't add video output to capture session\n");
-        goto fail;
-    }
-
-    [ctx->capture_session startRunning];
-
-    // Take stream info from the first frame.
-    while (ctx->frames_captured < 1) {
-        CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0.1, YES);
-    }
-
-    lock_frames(ctx);
-
-    AVStream* stream = avformat_new_stream(s, NULL);
-
-    if (!stream) {
-        goto fail;
-    }
-
-    avpriv_set_pts_info(stream, 64, 1, QTKIT_TIMEBASE);
-
-    stream->codec->codec_id   = AV_CODEC_ID_RAWVIDEO;
-    stream->codec->codec_type = AVMEDIA_TYPE_VIDEO;
-    stream->codec->width      = (int)CVPixelBufferGetWidth (ctx->current_frame);
-    stream->codec->height     = (int)CVPixelBufferGetHeight(ctx->current_frame);
-    stream->codec->pix_fmt    = AV_PIX_FMT_RGB24;
-
-    CVBufferRelease(ctx->current_frame);
-    ctx->current_frame = nil;
-
-    unlock_frames(ctx);
-
-    [pool release];
-
-    return 0;
-
-fail:
-    [pool release];
-
-    destroy_context(ctx);
-
-    return AVERROR(EIO);
-}
-
-static int qtkit_read_packet(AVFormatContext *s, AVPacket *pkt)
-{
-    CaptureContext* ctx = (CaptureContext*)s->priv_data;
-
-    do {
-        lock_frames(ctx);
-
-        if (ctx->current_frame != nil) {
-            if (av_new_packet(pkt, (int)CVPixelBufferGetDataSize(ctx->current_frame)) < 0) {
-                return AVERROR(EIO);
-            }
-
-            pkt->pts = pkt->dts = av_rescale_q(av_gettime() - ctx->first_pts, AV_TIME_BASE_Q, kQTKitTimeBase_q);
-            pkt->stream_index = 0;
-            pkt->flags |= AV_PKT_FLAG_KEY;
-
-            CVPixelBufferLockBaseAddress(ctx->current_frame, 0);
-
-            void* data = CVPixelBufferGetBaseAddress(ctx->current_frame);
-            memcpy(pkt->data, data, pkt->size);
-
-            CVPixelBufferUnlockBaseAddress(ctx->current_frame, 0);
-            CVBufferRelease(ctx->current_frame);
-            ctx->current_frame = nil;
-        } else {
-            pkt->data = NULL;
-            pthread_cond_wait(&ctx->frame_wait_cond, &ctx->frame_lock);
-        }
-
-        unlock_frames(ctx);
-    } while (!pkt->data);
-
-    return 0;
-}
-
-static int qtkit_close(AVFormatContext *s)
-{
-    CaptureContext* ctx = (CaptureContext*)s->priv_data;
-
-    destroy_context(ctx);
-
-    return 0;
-}
-
-static const AVOption options[] = {
-    { "frame_rate", "set frame rate", offsetof(CaptureContext, frame_rate), AV_OPT_TYPE_FLOAT, { .dbl = 30.0 }, 0.1, 30.0, AV_OPT_TYPE_VIDEO_RATE, NULL },
-    { "list_devices", "list available devices", offsetof(CaptureContext, list_devices), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM, "list_devices" },
-    { "true", "", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "list_devices" },
-    { "false", "", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, AV_OPT_FLAG_DECODING_PARAM, "list_devices" },
-    { "video_device_index", "select video device by index for devices with same name (starts at 0)", offsetof(CaptureContext, video_device_index), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
-    { NULL },
-};
-
-static const AVClass qtkit_class = {
-    .class_name = "QTKit input device",
-    .item_name  = av_default_item_name,
-    .option     = options,
-    .version    = LIBAVUTIL_VERSION_INT,
-    .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
-};
-
-AVInputFormat ff_qtkit_demuxer = {
-    .name           = "qtkit",
-    .long_name      = NULL_IF_CONFIG_SMALL("QTKit input device"),
-    .priv_data_size = sizeof(CaptureContext),
-    .read_header    = qtkit_read_header,
-    .read_packet    = qtkit_read_packet,
-    .read_close     = qtkit_close,
-    .flags          = AVFMT_NOFILE,
-    .priv_class     = &qtkit_class,
-};