mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-08-14 21:35:06 +02:00
203 lines
6.6 KiB
C
203 lines
6.6 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#if HAVE_UTGETOSTYPEFROMSTRING
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#include <CoreServices/CoreServices.h>
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#endif
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#include "libavcodec/avcodec.h"
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#if CONFIG_VDA
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# include "libavcodec/vda.h"
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#endif
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#if CONFIG_VIDEOTOOLBOX
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# include "libavcodec/videotoolbox.h"
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#endif
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#include "libavutil/imgutils.h"
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#include "ffmpeg.h"
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typedef struct VTContext {
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AVFrame *tmp_frame;
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} VTContext;
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char *videotoolbox_pixfmt;
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static int videotoolbox_retrieve_data(AVCodecContext *s, AVFrame *frame)
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{
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InputStream *ist = s->opaque;
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VTContext *vt = ist->hwaccel_ctx;
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CVPixelBufferRef pixbuf = (CVPixelBufferRef)frame->data[3];
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OSType pixel_format = CVPixelBufferGetPixelFormatType(pixbuf);
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CVReturn err;
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uint8_t *data[4] = { 0 };
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int linesize[4] = { 0 };
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int planes, ret, i;
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char codec_str[32];
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av_frame_unref(vt->tmp_frame);
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switch (pixel_format) {
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case kCVPixelFormatType_420YpCbCr8Planar: vt->tmp_frame->format = AV_PIX_FMT_YUV420P; break;
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case kCVPixelFormatType_422YpCbCr8: vt->tmp_frame->format = AV_PIX_FMT_UYVY422; break;
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case kCVPixelFormatType_32BGRA: vt->tmp_frame->format = AV_PIX_FMT_BGRA; break;
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#ifdef kCFCoreFoundationVersionNumber10_7
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case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange: vt->tmp_frame->format = AV_PIX_FMT_NV12; break;
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#endif
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default:
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av_get_codec_tag_string(codec_str, sizeof(codec_str), s->codec_tag);
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av_log(NULL, AV_LOG_ERROR,
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"%s: Unsupported pixel format: %s\n", codec_str, videotoolbox_pixfmt);
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return AVERROR(ENOSYS);
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}
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vt->tmp_frame->width = frame->width;
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vt->tmp_frame->height = frame->height;
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ret = av_frame_get_buffer(vt->tmp_frame, 32);
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if (ret < 0)
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return ret;
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err = CVPixelBufferLockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly);
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if (err != kCVReturnSuccess) {
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av_log(NULL, AV_LOG_ERROR, "Error locking the pixel buffer.\n");
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return AVERROR_UNKNOWN;
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}
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if (CVPixelBufferIsPlanar(pixbuf)) {
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planes = CVPixelBufferGetPlaneCount(pixbuf);
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for (i = 0; i < planes; i++) {
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data[i] = CVPixelBufferGetBaseAddressOfPlane(pixbuf, i);
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linesize[i] = CVPixelBufferGetBytesPerRowOfPlane(pixbuf, i);
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}
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} else {
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data[0] = CVPixelBufferGetBaseAddress(pixbuf);
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linesize[0] = CVPixelBufferGetBytesPerRow(pixbuf);
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}
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av_image_copy(vt->tmp_frame->data, vt->tmp_frame->linesize,
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(const uint8_t **)data, linesize, vt->tmp_frame->format,
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frame->width, frame->height);
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ret = av_frame_copy_props(vt->tmp_frame, frame);
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CVPixelBufferUnlockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly);
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if (ret < 0)
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return ret;
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av_frame_unref(frame);
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av_frame_move_ref(frame, vt->tmp_frame);
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return 0;
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}
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static void videotoolbox_uninit(AVCodecContext *s)
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{
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InputStream *ist = s->opaque;
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VTContext *vt = ist->hwaccel_ctx;
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ist->hwaccel_uninit = NULL;
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ist->hwaccel_retrieve_data = NULL;
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av_frame_free(&vt->tmp_frame);
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if (ist->hwaccel_id == HWACCEL_VIDEOTOOLBOX) {
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#if CONFIG_VIDEOTOOLBOX
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av_videotoolbox_default_free(s);
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#endif
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} else {
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#if CONFIG_VDA
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av_vda_default_free(s);
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#endif
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}
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av_freep(&ist->hwaccel_ctx);
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}
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int videotoolbox_init(AVCodecContext *s)
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{
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InputStream *ist = s->opaque;
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int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
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int ret = 0;
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VTContext *vt;
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vt = av_mallocz(sizeof(*vt));
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if (!vt)
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return AVERROR(ENOMEM);
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ist->hwaccel_ctx = vt;
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ist->hwaccel_uninit = videotoolbox_uninit;
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ist->hwaccel_retrieve_data = videotoolbox_retrieve_data;
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vt->tmp_frame = av_frame_alloc();
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if (!vt->tmp_frame) {
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ret = AVERROR(ENOMEM);
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goto fail;
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}
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if (ist->hwaccel_id == HWACCEL_VIDEOTOOLBOX) {
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#if CONFIG_VIDEOTOOLBOX
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if (!videotoolbox_pixfmt) {
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ret = av_videotoolbox_default_init(s);
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} else {
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AVVideotoolboxContext *vtctx = av_videotoolbox_alloc_context();
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CFStringRef pixfmt_str = CFStringCreateWithCString(kCFAllocatorDefault,
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videotoolbox_pixfmt,
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kCFStringEncodingUTF8);
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#if HAVE_UTGETOSTYPEFROMSTRING
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vtctx->cv_pix_fmt_type = UTGetOSTypeFromString(pixfmt_str);
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#else
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av_log(s, loglevel, "UTGetOSTypeFromString() is not available "
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"on this platform, %s pixel format can not be honored from "
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"the command line\n", videotoolbox_pixfmt);
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#endif
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ret = av_videotoolbox_default_init2(s, vtctx);
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CFRelease(pixfmt_str);
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}
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#endif
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} else {
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#if CONFIG_VDA
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if (!videotoolbox_pixfmt) {
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ret = av_vda_default_init(s);
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} else {
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AVVDAContext *vdactx = av_vda_alloc_context();
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CFStringRef pixfmt_str = CFStringCreateWithCString(kCFAllocatorDefault,
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videotoolbox_pixfmt,
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kCFStringEncodingUTF8);
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#if HAVE_UTGETOSTYPEFROMSTRING
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vdactx->cv_pix_fmt_type = UTGetOSTypeFromString(pixfmt_str);
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#else
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av_log(s, loglevel, "UTGetOSTypeFromString() is not available "
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"on this platform, %s pixel format can not be honored from "
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"the command line\n", videotoolbox_pixfmt);
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#endif
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ret = av_vda_default_init2(s, vdactx);
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CFRelease(pixfmt_str);
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}
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#endif
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}
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if (ret < 0) {
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av_log(NULL, loglevel,
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"Error creating %s decoder.\n", ist->hwaccel_id == HWACCEL_VIDEOTOOLBOX ? "Videotoolbox" : "VDA");
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goto fail;
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}
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return 0;
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fail:
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videotoolbox_uninit(s);
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return ret;
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}
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