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ffmpeg/libavutil/hwcontext_videotoolbox.c
Marvin Scholz 2fc37c4239 avutil/hwcontext_videotoolbox: Fix build with older SDKs 
I've accidentally used API not available on the checked version.
Additionally check for the SDK to be new enough to even have the
CVImageBufferCreateColorSpaceFromAttachments API to not fail
the build.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
2024-07-16 19:51:45 +08:00

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/*
* 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
*/
#include "config.h"
#include <stdint.h>
#include <string.h>
#include <VideoToolbox/VideoToolbox.h>
#include "buffer.h"
#include "buffer_internal.h"
#include "common.h"
#include "hwcontext.h"
#include "hwcontext_internal.h"
#include "hwcontext_videotoolbox.h"
#include "mem.h"
#include "pixfmt.h"
#include "pixdesc.h"
typedef struct VTFramesContext {
/**
* The public AVVTFramesContext. See hwcontext_videotoolbox.h for it.
*/
AVVTFramesContext p;
CVPixelBufferPoolRef pool;
} VTFramesContext;
static const struct {
uint32_t cv_fmt;
bool full_range;
enum AVPixelFormat pix_fmt;
} cv_pix_fmts[] = {
{ kCVPixelFormatType_420YpCbCr8Planar, false, AV_PIX_FMT_YUV420P },
{ kCVPixelFormatType_420YpCbCr8PlanarFullRange, true, AV_PIX_FMT_YUV420P },
{ kCVPixelFormatType_422YpCbCr8, false, AV_PIX_FMT_UYVY422 },
{ kCVPixelFormatType_32BGRA, true, AV_PIX_FMT_BGRA },
#ifdef kCFCoreFoundationVersionNumber10_7
{ kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange, false, AV_PIX_FMT_NV12 },
{ kCVPixelFormatType_420YpCbCr8BiPlanarFullRange, true, AV_PIX_FMT_NV12 },
{ kCVPixelFormatType_4444AYpCbCr16, false, AV_PIX_FMT_AYUV64 },
#endif
#if HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE
{ kCVPixelFormatType_420YpCbCr10BiPlanarVideoRange, false, AV_PIX_FMT_P010 },
{ kCVPixelFormatType_420YpCbCr10BiPlanarFullRange, true, AV_PIX_FMT_P010 },
#endif
#if HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE
{ kCVPixelFormatType_422YpCbCr8BiPlanarVideoRange, false, AV_PIX_FMT_NV16 },
{ kCVPixelFormatType_422YpCbCr8BiPlanarFullRange, true, AV_PIX_FMT_NV16 },
#endif
#if HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE
{ kCVPixelFormatType_422YpCbCr10BiPlanarVideoRange, false, AV_PIX_FMT_P210 },
{ kCVPixelFormatType_422YpCbCr10BiPlanarFullRange, true, AV_PIX_FMT_P210 },
#endif
#if HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE
{ kCVPixelFormatType_422YpCbCr16BiPlanarVideoRange, false, AV_PIX_FMT_P216 },
#endif
#if HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE
{ kCVPixelFormatType_444YpCbCr8BiPlanarVideoRange, false, AV_PIX_FMT_NV24 },
{ kCVPixelFormatType_444YpCbCr8BiPlanarFullRange, true, AV_PIX_FMT_NV24 },
#endif
#if HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE
{ kCVPixelFormatType_444YpCbCr10BiPlanarVideoRange, false, AV_PIX_FMT_P410 },
{ kCVPixelFormatType_444YpCbCr10BiPlanarFullRange, true, AV_PIX_FMT_P410 },
#endif
#if HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE
{ kCVPixelFormatType_444YpCbCr16BiPlanarVideoRange, false, AV_PIX_FMT_P416 },
#endif
};
static const enum AVPixelFormat supported_formats[] = {
#ifdef kCFCoreFoundationVersionNumber10_7
AV_PIX_FMT_NV12,
AV_PIX_FMT_AYUV64,
#endif
AV_PIX_FMT_YUV420P,
AV_PIX_FMT_UYVY422,
#if HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE
AV_PIX_FMT_P010,
#endif
#if HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE
AV_PIX_FMT_NV16,
#endif
#if HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE
AV_PIX_FMT_P210,
#endif
#if HAVE_KCVPIXELFORMATTYPE_422YPCBCR16BIPLANARVIDEORANGE
AV_PIX_FMT_P216,
#endif
#if HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE
AV_PIX_FMT_NV24,
#endif
#if HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE
AV_PIX_FMT_P410,
#endif
#if HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE
AV_PIX_FMT_P416,
#endif
AV_PIX_FMT_BGRA,
};
static int vt_frames_get_constraints(AVHWDeviceContext *ctx,
const void *hwconfig,
AVHWFramesConstraints *constraints)
{
int i;
constraints->valid_sw_formats = av_malloc_array(FF_ARRAY_ELEMS(supported_formats) + 1,
sizeof(*constraints->valid_sw_formats));
if (!constraints->valid_sw_formats)
return AVERROR(ENOMEM);
for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++)
constraints->valid_sw_formats[i] = supported_formats[i];
constraints->valid_sw_formats[FF_ARRAY_ELEMS(supported_formats)] = AV_PIX_FMT_NONE;
constraints->valid_hw_formats = av_malloc_array(2, sizeof(*constraints->valid_hw_formats));
if (!constraints->valid_hw_formats)
return AVERROR(ENOMEM);
constraints->valid_hw_formats[0] = AV_PIX_FMT_VIDEOTOOLBOX;
constraints->valid_hw_formats[1] = AV_PIX_FMT_NONE;
return 0;
}
enum AVPixelFormat av_map_videotoolbox_format_to_pixfmt(uint32_t cv_fmt)
{
int i;
for (i = 0; i < FF_ARRAY_ELEMS(cv_pix_fmts); i++) {
if (cv_pix_fmts[i].cv_fmt == cv_fmt)
return cv_pix_fmts[i].pix_fmt;
}
return AV_PIX_FMT_NONE;
}
static uint32_t vt_format_from_pixfmt(enum AVPixelFormat pix_fmt,
enum AVColorRange range)
{
for (int i = 0; i < FF_ARRAY_ELEMS(cv_pix_fmts); i++) {
if (cv_pix_fmts[i].pix_fmt == pix_fmt) {
int full_range = (range == AVCOL_RANGE_JPEG);
// Don't care if unspecified
if (range == AVCOL_RANGE_UNSPECIFIED)
return cv_pix_fmts[i].cv_fmt;
if (cv_pix_fmts[i].full_range == full_range)
return cv_pix_fmts[i].cv_fmt;
}
}
return 0;
}
uint32_t av_map_videotoolbox_format_from_pixfmt(enum AVPixelFormat pix_fmt)
{
return av_map_videotoolbox_format_from_pixfmt2(pix_fmt, false);
}
uint32_t av_map_videotoolbox_format_from_pixfmt2(enum AVPixelFormat pix_fmt, bool full_range)
{
return vt_format_from_pixfmt(pix_fmt, full_range ? AVCOL_RANGE_JPEG : AVCOL_RANGE_MPEG);
}
static int vt_pool_alloc(AVHWFramesContext *ctx)
{
VTFramesContext *fctx = ctx->hwctx;
AVVTFramesContext *hw_ctx = &fctx->p;
CVReturn err;
CFNumberRef w, h, pixfmt;
uint32_t cv_pixfmt;
CFMutableDictionaryRef attributes, iosurface_properties;
attributes = CFDictionaryCreateMutable(
NULL,
2,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
cv_pixfmt = vt_format_from_pixfmt(ctx->sw_format, hw_ctx->color_range);
pixfmt = CFNumberCreate(NULL, kCFNumberSInt32Type, &cv_pixfmt);
CFDictionarySetValue(
attributes,
kCVPixelBufferPixelFormatTypeKey,
pixfmt);
CFRelease(pixfmt);
iosurface_properties = CFDictionaryCreateMutable(
NULL,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(attributes, kCVPixelBufferIOSurfacePropertiesKey, iosurface_properties);
CFRelease(iosurface_properties);
w = CFNumberCreate(NULL, kCFNumberSInt32Type, &ctx->width);
h = CFNumberCreate(NULL, kCFNumberSInt32Type, &ctx->height);
CFDictionarySetValue(attributes, kCVPixelBufferWidthKey, w);
CFDictionarySetValue(attributes, kCVPixelBufferHeightKey, h);
CFRelease(w);
CFRelease(h);
err = CVPixelBufferPoolCreate(
NULL,
NULL,
attributes,
&fctx->pool);
CFRelease(attributes);
if (err == kCVReturnSuccess)
return 0;
av_log(ctx, AV_LOG_ERROR, "Error creating CVPixelBufferPool: %d\n", err);
return AVERROR_EXTERNAL;
}
static void videotoolbox_buffer_release(void *opaque, uint8_t *data)
{
CVPixelBufferRelease((CVPixelBufferRef)data);
}
static AVBufferRef *vt_pool_alloc_buffer(void *opaque, size_t size)
{
CVPixelBufferRef pixbuf;
AVBufferRef *buf;
CVReturn err;
AVHWFramesContext *ctx = opaque;
VTFramesContext *fctx = ctx->hwctx;
err = CVPixelBufferPoolCreatePixelBuffer(
NULL,
fctx->pool,
&pixbuf
);
if (err != kCVReturnSuccess) {
av_log(ctx, AV_LOG_ERROR, "Failed to create pixel buffer from pool: %d\n", err);
return NULL;
}
buf = av_buffer_create((uint8_t *)pixbuf, size,
videotoolbox_buffer_release, NULL, 0);
if (!buf) {
CVPixelBufferRelease(pixbuf);
return NULL;
}
return buf;
}
static void vt_frames_uninit(AVHWFramesContext *ctx)
{
VTFramesContext *fctx = ctx->hwctx;
if (fctx->pool) {
CVPixelBufferPoolRelease(fctx->pool);
fctx->pool = NULL;
}
}
static int vt_frames_init(AVHWFramesContext *ctx)
{
int i, ret;
for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
if (ctx->sw_format == supported_formats[i])
break;
}
if (i == FF_ARRAY_ELEMS(supported_formats)) {
av_log(ctx, AV_LOG_ERROR, "Pixel format '%s' is not supported\n",
av_get_pix_fmt_name(ctx->sw_format));
return AVERROR(ENOSYS);
}
if (!ctx->pool) {
ffhwframesctx(ctx)->pool_internal = av_buffer_pool_init2(
sizeof(CVPixelBufferRef), ctx, vt_pool_alloc_buffer, NULL);
if (!ffhwframesctx(ctx)->pool_internal)
return AVERROR(ENOMEM);
}
ret = vt_pool_alloc(ctx);
if (ret < 0)
return ret;
return 0;
}
static int vt_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
{
frame->buf[0] = av_buffer_pool_get(ctx->pool);
if (!frame->buf[0])
return AVERROR(ENOMEM);
frame->data[3] = frame->buf[0]->data;
frame->format = AV_PIX_FMT_VIDEOTOOLBOX;
frame->width = ctx->width;
frame->height = ctx->height;
return 0;
}
static int vt_transfer_get_formats(AVHWFramesContext *ctx,
enum AVHWFrameTransferDirection dir,
enum AVPixelFormat **formats)
{
enum AVPixelFormat *fmts = av_malloc_array(2, sizeof(*fmts));
if (!fmts)
return AVERROR(ENOMEM);
fmts[0] = ctx->sw_format;
fmts[1] = AV_PIX_FMT_NONE;
*formats = fmts;
return 0;
}
static void vt_unmap(AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
{
CVPixelBufferRef pixbuf = (CVPixelBufferRef)hwmap->source->data[3];
CVPixelBufferUnlockBaseAddress(pixbuf, (uintptr_t)hwmap->priv);
}
static int vt_pixbuf_set_par(void *log_ctx,
CVPixelBufferRef pixbuf, const AVFrame *src)
{
CFMutableDictionaryRef par = NULL;
CFNumberRef num = NULL, den = NULL;
AVRational avpar = src->sample_aspect_ratio;
if (avpar.num == 0) {
CVBufferRemoveAttachment(pixbuf, kCVImageBufferPixelAspectRatioKey);
return 0;
}
av_reduce(&avpar.num, &avpar.den,
avpar.num, avpar.den,
0xFFFFFFFF);
num = CFNumberCreate(kCFAllocatorDefault,
kCFNumberIntType,
&avpar.num);
den = CFNumberCreate(kCFAllocatorDefault,
kCFNumberIntType,
&avpar.den);
par = CFDictionaryCreateMutable(kCFAllocatorDefault,
2,
&kCFCopyStringDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
if (!par || !num || !den) {
if (par) CFRelease(par);
if (num) CFRelease(num);
if (den) CFRelease(den);
return AVERROR(ENOMEM);
}
CFDictionarySetValue(
par,
kCVImageBufferPixelAspectRatioHorizontalSpacingKey,
num);
CFDictionarySetValue(
par,
kCVImageBufferPixelAspectRatioVerticalSpacingKey,
den);
CVBufferSetAttachment(
pixbuf,
kCVImageBufferPixelAspectRatioKey,
par,
kCVAttachmentMode_ShouldPropagate
);
CFRelease(par);
CFRelease(num);
CFRelease(den);
return 0;
}
CFStringRef av_map_videotoolbox_chroma_loc_from_av(enum AVChromaLocation loc)
{
switch (loc) {
case AVCHROMA_LOC_LEFT:
return kCVImageBufferChromaLocation_Left;
case AVCHROMA_LOC_CENTER:
return kCVImageBufferChromaLocation_Center;
case AVCHROMA_LOC_TOP:
return kCVImageBufferChromaLocation_Top;
case AVCHROMA_LOC_BOTTOM:
return kCVImageBufferChromaLocation_Bottom;
case AVCHROMA_LOC_TOPLEFT:
return kCVImageBufferChromaLocation_TopLeft;
case AVCHROMA_LOC_BOTTOMLEFT:
return kCVImageBufferChromaLocation_BottomLeft;
default:
return NULL;
}
}
static int vt_pixbuf_set_chromaloc(void *log_ctx,
CVPixelBufferRef pixbuf, const AVFrame *src)
{
CFStringRef loc = av_map_videotoolbox_chroma_loc_from_av(src->chroma_location);
if (loc) {
CVBufferSetAttachment(
pixbuf,
kCVImageBufferChromaLocationTopFieldKey,
loc,
kCVAttachmentMode_ShouldPropagate);
} else
CVBufferRemoveAttachment(
pixbuf,
kCVImageBufferChromaLocationTopFieldKey);
return 0;
}
CFStringRef av_map_videotoolbox_color_matrix_from_av(enum AVColorSpace space)
{
switch (space) {
case AVCOL_SPC_BT2020_CL:
case AVCOL_SPC_BT2020_NCL:
#if HAVE_KCVIMAGEBUFFERYCBCRMATRIX_ITU_R_2020
if (__builtin_available(macOS 10.11, iOS 9, *))
return kCVImageBufferYCbCrMatrix_ITU_R_2020;
#endif
return CFSTR("ITU_R_2020");
case AVCOL_SPC_BT470BG:
case AVCOL_SPC_SMPTE170M:
return kCVImageBufferYCbCrMatrix_ITU_R_601_4;
case AVCOL_SPC_BT709:
return kCVImageBufferYCbCrMatrix_ITU_R_709_2;
case AVCOL_SPC_SMPTE240M:
return kCVImageBufferYCbCrMatrix_SMPTE_240M_1995;
default:
#if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG
if (__builtin_available(macOS 10.13, iOS 11, tvOS 11, watchOS 4, *))
return CVYCbCrMatrixGetStringForIntegerCodePoint(space);
#endif
case AVCOL_SPC_UNSPECIFIED:
return NULL;
}
}
CFStringRef av_map_videotoolbox_color_primaries_from_av(enum AVColorPrimaries pri)
{
switch (pri) {
case AVCOL_PRI_BT2020:
#if HAVE_KCVIMAGEBUFFERCOLORPRIMARIES_ITU_R_2020
if (__builtin_available(macOS 10.11, iOS 9, *))
return kCVImageBufferColorPrimaries_ITU_R_2020;
#endif
return CFSTR("ITU_R_2020");
case AVCOL_PRI_BT709:
return kCVImageBufferColorPrimaries_ITU_R_709_2;
case AVCOL_PRI_SMPTE170M:
return kCVImageBufferColorPrimaries_SMPTE_C;
case AVCOL_PRI_BT470BG:
return kCVImageBufferColorPrimaries_EBU_3213;
default:
#if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG
if (__builtin_available(macOS 10.13, iOS 11, tvOS 11, watchOS 4, *))
return CVColorPrimariesGetStringForIntegerCodePoint(pri);
#endif
case AVCOL_PRI_UNSPECIFIED:
return NULL;
}
}
CFStringRef av_map_videotoolbox_color_trc_from_av(enum AVColorTransferCharacteristic trc)
{
switch (trc) {
case AVCOL_TRC_SMPTE2084:
#if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_2084_PQ
if (__builtin_available(macOS 10.13, iOS 11, *))
return kCVImageBufferTransferFunction_SMPTE_ST_2084_PQ;
#endif
return CFSTR("SMPTE_ST_2084_PQ");
case AVCOL_TRC_BT2020_10:
case AVCOL_TRC_BT2020_12:
#if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2020
if (__builtin_available(macOS 10.11, iOS 9, *))
return kCVImageBufferTransferFunction_ITU_R_2020;
#endif
return CFSTR("ITU_R_2020");
case AVCOL_TRC_BT709:
return kCVImageBufferTransferFunction_ITU_R_709_2;
case AVCOL_TRC_SMPTE240M:
return kCVImageBufferTransferFunction_SMPTE_240M_1995;
case AVCOL_TRC_SMPTE428:
#if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_SMPTE_ST_428_1
if (__builtin_available(macOS 10.12, iOS 10, *))
return kCVImageBufferTransferFunction_SMPTE_ST_428_1;
#endif
return CFSTR("SMPTE_ST_428_1");
case AVCOL_TRC_ARIB_STD_B67:
#if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG
if (__builtin_available(macOS 10.13, iOS 11, *))
return kCVImageBufferTransferFunction_ITU_R_2100_HLG;
#endif
return CFSTR("ITU_R_2100_HLG");
case AVCOL_TRC_GAMMA22:
return kCVImageBufferTransferFunction_UseGamma;
case AVCOL_TRC_GAMMA28:
return kCVImageBufferTransferFunction_UseGamma;
default:
#if HAVE_KCVIMAGEBUFFERTRANSFERFUNCTION_ITU_R_2100_HLG
if (__builtin_available(macOS 10.13, iOS 11, tvOS 11, watchOS 4, *))
return CVTransferFunctionGetStringForIntegerCodePoint(trc);
#endif
case AVCOL_TRC_UNSPECIFIED:
return NULL;
}
}
static int vt_pixbuf_set_colorspace(void *log_ctx,
CVPixelBufferRef pixbuf, const AVFrame *src)
{
CGColorSpaceRef colorspace = NULL;
CFStringRef colormatrix = NULL, colorpri = NULL, colortrc = NULL;
Float32 gamma = 0;
colormatrix = av_map_videotoolbox_color_matrix_from_av(src->colorspace);
if (colormatrix)
CVBufferSetAttachment(pixbuf, kCVImageBufferYCbCrMatrixKey,
colormatrix, kCVAttachmentMode_ShouldPropagate);
else {
CVBufferRemoveAttachment(pixbuf, kCVImageBufferYCbCrMatrixKey);
if (src->colorspace != AVCOL_SPC_UNSPECIFIED)
av_log(log_ctx, AV_LOG_WARNING,
"Color space %s is not supported.\n",
av_color_space_name(src->colorspace));
}
colorpri = av_map_videotoolbox_color_primaries_from_av(src->color_primaries);
if (colorpri)
CVBufferSetAttachment(pixbuf, kCVImageBufferColorPrimariesKey,
colorpri, kCVAttachmentMode_ShouldPropagate);
else {
CVBufferRemoveAttachment(pixbuf, kCVImageBufferColorPrimariesKey);
if (src->color_primaries != AVCOL_SPC_UNSPECIFIED)
av_log(log_ctx, AV_LOG_WARNING,
"Color primaries %s is not supported.\n",
av_color_primaries_name(src->color_primaries));
}
colortrc = av_map_videotoolbox_color_trc_from_av(src->color_trc);
if (colortrc)
CVBufferSetAttachment(pixbuf, kCVImageBufferTransferFunctionKey,
colorpri, kCVAttachmentMode_ShouldPropagate);
else {
CVBufferRemoveAttachment(pixbuf, kCVImageBufferTransferFunctionKey);
if (src->color_trc != AVCOL_TRC_UNSPECIFIED)
av_log(log_ctx, AV_LOG_WARNING,
"Color transfer function %s is not supported.\n",
av_color_transfer_name(src->color_trc));
}
if (src->color_trc == AVCOL_TRC_GAMMA22)
gamma = 2.2;
else if (src->color_trc == AVCOL_TRC_GAMMA28)
gamma = 2.8;
if (gamma != 0) {
CFNumberRef gamma_level = CFNumberCreate(NULL, kCFNumberFloat32Type, &gamma);
CVBufferSetAttachment(pixbuf, kCVImageBufferGammaLevelKey,
gamma_level, kCVAttachmentMode_ShouldPropagate);
CFRelease(gamma_level);
} else
CVBufferRemoveAttachment(pixbuf, kCVImageBufferGammaLevelKey);
#if (TARGET_OS_OSX && __MAC_OS_X_VERSION_MAX_ALLOWED >= 100800) || \
(TARGET_OS_IOS && __IPHONE_OS_VERSION_MAX_ALLOWED >= 100000)
if (__builtin_available(macOS 10.8, iOS 10, *)) {
CFDictionaryRef attachments = NULL;
if (__builtin_available(macOS 12.0, iOS 15.0, *))
attachments = CVBufferCopyAttachments(pixbuf, kCVAttachmentMode_ShouldPropagate);
#if (TARGET_OS_OSX && __MAC_OS_X_VERSION_MIN_REQUIRED <= 120000) || \
(TARGET_OS_IOS && __IPHONE_OS_VERSION_MIN_REQUIRED <= 150000)
else {
CFDictionaryRef tmp = CVBufferGetAttachments(pixbuf, kCVAttachmentMode_ShouldPropagate);
if (tmp)
attachments = CFDictionaryCreateCopy(NULL, tmp);
}
#endif
if (attachments) {
colorspace = CVImageBufferCreateColorSpaceFromAttachments(attachments);
CFRelease(attachments);
}
}
#endif
if (colorspace) {
CVBufferSetAttachment(pixbuf, kCVImageBufferCGColorSpaceKey,
colorspace, kCVAttachmentMode_ShouldPropagate);
CFRelease(colorspace);
} else
CVBufferRemoveAttachment(pixbuf, kCVImageBufferCGColorSpaceKey);
return 0;
}
static int vt_pixbuf_set_attachments(void *log_ctx,
CVPixelBufferRef pixbuf, const AVFrame *src)
{
int ret;
ret = vt_pixbuf_set_par(log_ctx, pixbuf, src);
if (ret < 0)
return ret;
ret = vt_pixbuf_set_colorspace(log_ctx, pixbuf, src);
if (ret < 0)
return ret;
ret = vt_pixbuf_set_chromaloc(log_ctx, pixbuf, src);
if (ret < 0)
return ret;
return 0;
}
int av_vt_pixbuf_set_attachments(void *log_ctx,
CVPixelBufferRef pixbuf, const AVFrame *src)
{
return vt_pixbuf_set_attachments(log_ctx, pixbuf, src);
}
static int vt_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src,
int flags)
{
CVPixelBufferRef pixbuf = (CVPixelBufferRef)src->data[3];
OSType pixel_format = CVPixelBufferGetPixelFormatType(pixbuf);
CVReturn err;
uint32_t map_flags = 0;
int ret;
int i;
enum AVPixelFormat format;
format = av_map_videotoolbox_format_to_pixfmt(pixel_format);
if (dst->format != format) {
av_log(ctx, AV_LOG_ERROR, "Unsupported or mismatching pixel format: %s\n",
av_fourcc2str(pixel_format));
return AVERROR_UNKNOWN;
}
if (CVPixelBufferGetWidth(pixbuf) != ctx->width ||
CVPixelBufferGetHeight(pixbuf) != ctx->height) {
av_log(ctx, AV_LOG_ERROR, "Inconsistent frame dimensions.\n");
return AVERROR_UNKNOWN;
}
if (flags == AV_HWFRAME_MAP_READ)
map_flags = kCVPixelBufferLock_ReadOnly;
err = CVPixelBufferLockBaseAddress(pixbuf, map_flags);
if (err != kCVReturnSuccess) {
av_log(ctx, AV_LOG_ERROR, "Error locking the pixel buffer.\n");
return AVERROR_UNKNOWN;
}
if (CVPixelBufferIsPlanar(pixbuf)) {
int planes = CVPixelBufferGetPlaneCount(pixbuf);
for (i = 0; i < planes; i++) {
dst->data[i] = CVPixelBufferGetBaseAddressOfPlane(pixbuf, i);
dst->linesize[i] = CVPixelBufferGetBytesPerRowOfPlane(pixbuf, i);
}
} else {
dst->data[0] = CVPixelBufferGetBaseAddress(pixbuf);
dst->linesize[0] = CVPixelBufferGetBytesPerRow(pixbuf);
}
ret = ff_hwframe_map_create(src->hw_frames_ctx, dst, src, vt_unmap,
(void *)(uintptr_t)map_flags);
if (ret < 0)
goto unlock;
return 0;
unlock:
CVPixelBufferUnlockBaseAddress(pixbuf, map_flags);
return ret;
}
static int vt_transfer_data_from(AVHWFramesContext *hwfc,
AVFrame *dst, const AVFrame *src)
{
AVFrame *map;
int err;
if (dst->width > hwfc->width || dst->height > hwfc->height)
return AVERROR(EINVAL);
map = av_frame_alloc();
if (!map)
return AVERROR(ENOMEM);
map->format = dst->format;
err = vt_map_frame(hwfc, map, src, AV_HWFRAME_MAP_READ);
if (err)
goto fail;
map->width = dst->width;
map->height = dst->height;
err = av_frame_copy(dst, map);
if (err)
goto fail;
err = 0;
fail:
av_frame_free(&map);
return err;
}
static int vt_transfer_data_to(AVHWFramesContext *hwfc,
AVFrame *dst, const AVFrame *src)
{
AVFrame *map;
int err;
if (src->width > hwfc->width || src->height > hwfc->height)
return AVERROR(EINVAL);
map = av_frame_alloc();
if (!map)
return AVERROR(ENOMEM);
map->format = src->format;
err = vt_map_frame(hwfc, map, dst, AV_HWFRAME_MAP_WRITE | AV_HWFRAME_MAP_OVERWRITE);
if (err)
goto fail;
map->width = src->width;
map->height = src->height;
err = av_frame_copy(map, src);
if (err)
goto fail;
err = vt_pixbuf_set_attachments(hwfc, (CVPixelBufferRef)dst->data[3], src);
if (err)
goto fail;
err = 0;
fail:
av_frame_free(&map);
return err;
}
static int vt_map_from(AVHWFramesContext *hwfc, AVFrame *dst,
const AVFrame *src, int flags)
{
int err;
if (dst->format == AV_PIX_FMT_NONE)
dst->format = hwfc->sw_format;
else if (dst->format != hwfc->sw_format)
return AVERROR(ENOSYS);
err = vt_map_frame(hwfc, dst, src, flags);
if (err)
return err;
dst->width = src->width;
dst->height = src->height;
err = av_frame_copy_props(dst, src);
if (err)
return err;
return 0;
}
static int vt_device_create(AVHWDeviceContext *ctx, const char *device,
AVDictionary *opts, int flags)
{
if (device && device[0]) {
av_log(ctx, AV_LOG_ERROR, "Device selection unsupported.\n");
return AVERROR_UNKNOWN;
}
return 0;
}
const HWContextType ff_hwcontext_type_videotoolbox = {
.type = AV_HWDEVICE_TYPE_VIDEOTOOLBOX,
.name = "videotoolbox",
.frames_hwctx_size = sizeof(VTFramesContext),
.device_create = vt_device_create,
.frames_init = vt_frames_init,
.frames_get_buffer = vt_get_buffer,
.frames_get_constraints = vt_frames_get_constraints,
.frames_uninit = vt_frames_uninit,
.transfer_get_formats = vt_transfer_get_formats,
.transfer_data_to = vt_transfer_data_to,
.transfer_data_from = vt_transfer_data_from,
.map_from = vt_map_from,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_VIDEOTOOLBOX, AV_PIX_FMT_NONE },
};
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