2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #if HAVE_UTGETOSTYPEFROMSTRING
22 #include <CoreServices/CoreServices.h>
25 #include "libavcodec/avcodec.h"
27 # include "libavcodec/vda.h"
29 #if CONFIG_VIDEOTOOLBOX
30 # include "libavcodec/videotoolbox.h"
32 #include "libavutil/imgutils.h"
35 typedef struct VTContext {
39 char *videotoolbox_pixfmt;
41 static int videotoolbox_retrieve_data(AVCodecContext *s, AVFrame *frame)
43 InputStream *ist = s->opaque;
44 VTContext *vt = ist->hwaccel_ctx;
45 CVPixelBufferRef pixbuf = (CVPixelBufferRef)frame->data[3];
46 OSType pixel_format = CVPixelBufferGetPixelFormatType(pixbuf);
48 uint8_t *data[4] = { 0 };
49 int linesize[4] = { 0 };
53 av_frame_unref(vt->tmp_frame);
55 switch (pixel_format) {
56 case kCVPixelFormatType_420YpCbCr8Planar: vt->tmp_frame->format = AV_PIX_FMT_YUV420P; break;
57 case kCVPixelFormatType_422YpCbCr8: vt->tmp_frame->format = AV_PIX_FMT_UYVY422; break;
58 case kCVPixelFormatType_32BGRA: vt->tmp_frame->format = AV_PIX_FMT_BGRA; break;
59 #ifdef kCFCoreFoundationVersionNumber10_7
60 case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange: vt->tmp_frame->format = AV_PIX_FMT_NV12; break;
63 av_get_codec_tag_string(codec_str, sizeof(codec_str), s->codec_tag);
64 av_log(NULL, AV_LOG_ERROR,
65 "%s: Unsupported pixel format: %s\n", codec_str, videotoolbox_pixfmt);
66 return AVERROR(ENOSYS);
69 vt->tmp_frame->width = frame->width;
70 vt->tmp_frame->height = frame->height;
71 ret = av_frame_get_buffer(vt->tmp_frame, 32);
75 err = CVPixelBufferLockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly);
76 if (err != kCVReturnSuccess) {
77 av_log(NULL, AV_LOG_ERROR, "Error locking the pixel buffer.\n");
78 return AVERROR_UNKNOWN;
81 if (CVPixelBufferIsPlanar(pixbuf)) {
83 planes = CVPixelBufferGetPlaneCount(pixbuf);
84 for (i = 0; i < planes; i++) {
85 data[i] = CVPixelBufferGetBaseAddressOfPlane(pixbuf, i);
86 linesize[i] = CVPixelBufferGetBytesPerRowOfPlane(pixbuf, i);
89 data[0] = CVPixelBufferGetBaseAddress(pixbuf);
90 linesize[0] = CVPixelBufferGetBytesPerRow(pixbuf);
93 av_image_copy(vt->tmp_frame->data, vt->tmp_frame->linesize,
94 (const uint8_t **)data, linesize, vt->tmp_frame->format,
95 frame->width, frame->height);
97 ret = av_frame_copy_props(vt->tmp_frame, frame);
98 CVPixelBufferUnlockBaseAddress(pixbuf, kCVPixelBufferLock_ReadOnly);
102 av_frame_unref(frame);
103 av_frame_move_ref(frame, vt->tmp_frame);
108 static void videotoolbox_uninit(AVCodecContext *s)
110 InputStream *ist = s->opaque;
111 VTContext *vt = ist->hwaccel_ctx;
113 ist->hwaccel_uninit = NULL;
114 ist->hwaccel_retrieve_data = NULL;
116 av_frame_free(&vt->tmp_frame);
118 if (ist->hwaccel_id == HWACCEL_VIDEOTOOLBOX) {
119 #if CONFIG_VIDEOTOOLBOX
120 av_videotoolbox_default_free(s);
124 av_vda_default_free(s);
127 av_freep(&ist->hwaccel_ctx);
130 int videotoolbox_init(AVCodecContext *s)
132 InputStream *ist = s->opaque;
133 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
137 vt = av_mallocz(sizeof(*vt));
139 return AVERROR(ENOMEM);
141 ist->hwaccel_ctx = vt;
142 ist->hwaccel_uninit = videotoolbox_uninit;
143 ist->hwaccel_retrieve_data = videotoolbox_retrieve_data;
145 vt->tmp_frame = av_frame_alloc();
146 if (!vt->tmp_frame) {
147 ret = AVERROR(ENOMEM);
151 if (ist->hwaccel_id == HWACCEL_VIDEOTOOLBOX) {
152 #if CONFIG_VIDEOTOOLBOX
153 if (!videotoolbox_pixfmt) {
154 ret = av_videotoolbox_default_init(s);
156 AVVideotoolboxContext *vtctx = av_videotoolbox_alloc_context();
157 CFStringRef pixfmt_str = CFStringCreateWithCString(kCFAllocatorDefault,
159 kCFStringEncodingUTF8);
160 #if HAVE_UTGETOSTYPEFROMSTRING
161 vtctx->cv_pix_fmt_type = UTGetOSTypeFromString(pixfmt_str);
163 av_log(s, loglevel, "UTGetOSTypeFromString() is not available "
164 "on this platform, %s pixel format can not be honored from "
165 "the command line\n", videotoolbox_pixfmt);
167 ret = av_videotoolbox_default_init2(s, vtctx);
168 CFRelease(pixfmt_str);
173 if (!videotoolbox_pixfmt) {
174 ret = av_vda_default_init(s);
176 AVVDAContext *vdactx = av_vda_alloc_context();
177 CFStringRef pixfmt_str = CFStringCreateWithCString(kCFAllocatorDefault,
179 kCFStringEncodingUTF8);
180 #if HAVE_UTGETOSTYPEFROMSTRING
181 vdactx->cv_pix_fmt_type = UTGetOSTypeFromString(pixfmt_str);
183 av_log(s, loglevel, "UTGetOSTypeFromString() is not available "
184 "on this platform, %s pixel format can not be honored from "
185 "the command line\n", videotoolbox_pixfmt);
187 ret = av_vda_default_init2(s, vdactx);
188 CFRelease(pixfmt_str);
193 av_log(NULL, loglevel,
194 "Error creating %s decoder.\n", ist->hwaccel_id == HWACCEL_VIDEOTOOLBOX ? "Videotoolbox" : "VDA");
200 videotoolbox_uninit(s);