/*
- * VDA hardware acceleration
- *
- * copyright (c) 2011 Sebastien Zwickert
- *
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include <pthread.h>
-#include <CoreFoundation/CFDictionary.h>
-#include <CoreFoundation/CFNumber.h>
-#include <CoreFoundation/CFData.h>
-#include <CoreFoundation/CFString.h>
+#include "config.h"
-#include "libavutil/avutil.h"
-#include "vda_internal.h"
+#include "libavutil/mem.h"
-/* helper to create a dictionary according to the given pts */
-static CFDictionaryRef vda_dictionary_with_pts(int64_t i_pts)
-{
- CFStringRef key = CFSTR("FF_VDA_DECODER_PTS_KEY");
- CFNumberRef value = CFNumberCreate(kCFAllocatorDefault,
- kCFNumberSInt64Type, &i_pts);
- CFDictionaryRef user_info = CFDictionaryCreate(kCFAllocatorDefault,
- (const void **)&key,
- (const void **)&value,
- 1,
- &kCFTypeDictionaryKeyCallBacks,
- &kCFTypeDictionaryValueCallBacks);
- CFRelease(value);
- return user_info;
-}
+#include "vda.h"
+#include "vda_internal.h"
-/* helper to retrieve the pts from the given dictionary */
-static int64_t vda_pts_from_dictionary(CFDictionaryRef user_info)
+#if CONFIG_H264_VDA_HWACCEL
+AVVDAContext *av_vda_alloc_context(void)
{
- CFNumberRef pts;
- int64_t outValue = 0;
-
- if (!user_info)
- return 0;
+ AVVDAContext *ret = av_mallocz(sizeof(*ret));
- pts = CFDictionaryGetValue(user_info, CFSTR("FF_VDA_DECODER_PTS_KEY"));
-
- if (pts)
- CFNumberGetValue(pts, kCFNumberSInt64Type, &outValue);
+ if (ret) {
+ ret->output_callback = ff_vda_output_callback;
+ ret->cv_pix_fmt_type = kCVPixelFormatType_422YpCbCr8;
+ }
- return outValue;
+ return ret;
}
-/* Remove and release all frames from the queue. */
-static void vda_clear_queue(struct vda_context *vda_ctx)
+int av_vda_default_init(AVCodecContext *avctx)
{
- vda_frame *top_frame;
-
- pthread_mutex_lock(&vda_ctx->queue_mutex);
-
- while (vda_ctx->queue) {
- top_frame = vda_ctx->queue;
- vda_ctx->queue = top_frame->next_frame;
- ff_vda_release_vda_frame(top_frame);
- }
-
- pthread_mutex_unlock(&vda_ctx->queue_mutex);
+ return av_vda_default_init2(avctx, NULL);
}
-/* Decoder callback that adds the VDA frame to the queue in display order. */
-static void vda_decoder_callback(void *vda_hw_ctx,
- CFDictionaryRef user_info,
- OSStatus status,
- uint32_t infoFlags,
- CVImageBufferRef image_buffer)
+int av_vda_default_init2(AVCodecContext *avctx, AVVDAContext *vdactx)
{
- struct vda_context *vda_ctx = vda_hw_ctx;
- vda_frame *new_frame;
- vda_frame *queue_walker;
-
- if (!image_buffer)
- return;
-
- if (vda_ctx->cv_pix_fmt_type != CVPixelBufferGetPixelFormatType(image_buffer))
- return;
-
- if (!(new_frame = av_mallocz(sizeof(vda_frame))))
- return;
- new_frame->next_frame = NULL;
- new_frame->cv_buffer = CVPixelBufferRetain(image_buffer);
- new_frame->pts = vda_pts_from_dictionary(user_info);
-
- pthread_mutex_lock(&vda_ctx->queue_mutex);
-
- queue_walker = vda_ctx->queue;
-
- if (!queue_walker || new_frame->pts < queue_walker->pts) {
- /* we have an empty queue, or this frame earlier than the current queue head */
- new_frame->next_frame = queue_walker;
- vda_ctx->queue = new_frame;
- } else {
- /* walk the queue and insert this frame where it belongs in display order */
- vda_frame *next_frame;
- while (1) {
- next_frame = queue_walker->next_frame;
- if (!next_frame || new_frame->pts < next_frame->pts) {
- new_frame->next_frame = next_frame;
- queue_walker->next_frame = new_frame;
- break;
- }
- queue_walker = next_frame;
- }
- }
-
- pthread_mutex_unlock(&vda_ctx->queue_mutex);
+ avctx->hwaccel_context = vdactx ?: av_vda_alloc_context();
+ if (!avctx->hwaccel_context)
+ return AVERROR(ENOMEM);
+ return ff_vda_default_init(avctx);
}
-int ff_vda_create_decoder(struct vda_context *vda_ctx,
- uint8_t *extradata,
- int extradata_size)
+void av_vda_default_free(AVCodecContext *avctx)
{
- OSStatus status = kVDADecoderNoErr;
- CFNumberRef height;
- CFNumberRef width;
- CFNumberRef format;
- CFDataRef avc_data;
- CFMutableDictionaryRef config_info;
- CFMutableDictionaryRef buffer_attributes;
- CFMutableDictionaryRef io_surface_properties;
- CFNumberRef cv_pix_fmt;
-
- pthread_mutex_init(&vda_ctx->queue_mutex, NULL);
-
- /* Each VCL NAL in the bistream sent to the decoder
- * is preceeded by a 4 bytes length header.
- * Change the avcC atom header if needed, to signal headers of 4 bytes. */
- if (extradata_size >= 4 && (extradata[4] & 0x03) != 0x03) {
- uint8_t *rw_extradata;
-
- if (!(rw_extradata = av_malloc(extradata_size)))
- return AVERROR(ENOMEM);
-
- memcpy(rw_extradata, extradata, extradata_size);
-
- rw_extradata[4] |= 0x03;
-
- avc_data = CFDataCreate(kCFAllocatorDefault, rw_extradata, extradata_size);
-
- av_freep(&rw_extradata);
- } else {
- avc_data = CFDataCreate(kCFAllocatorDefault, extradata, extradata_size);
- }
-
- config_info = CFDictionaryCreateMutable(kCFAllocatorDefault,
- 4,
- &kCFTypeDictionaryKeyCallBacks,
- &kCFTypeDictionaryValueCallBacks);
-
- height = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->height);
- width = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->width);
- format = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->format);
-
- CFDictionarySetValue(config_info, kVDADecoderConfiguration_Height, height);
- CFDictionarySetValue(config_info, kVDADecoderConfiguration_Width, width);
- CFDictionarySetValue(config_info, kVDADecoderConfiguration_SourceFormat, format);
- CFDictionarySetValue(config_info, kVDADecoderConfiguration_avcCData, avc_data);
-
- buffer_attributes = CFDictionaryCreateMutable(kCFAllocatorDefault,
- 2,
- &kCFTypeDictionaryKeyCallBacks,
- &kCFTypeDictionaryValueCallBacks);
- io_surface_properties = CFDictionaryCreateMutable(kCFAllocatorDefault,
- 0,
- &kCFTypeDictionaryKeyCallBacks,
- &kCFTypeDictionaryValueCallBacks);
- cv_pix_fmt = CFNumberCreate(kCFAllocatorDefault,
- kCFNumberSInt32Type,
- &vda_ctx->cv_pix_fmt_type);
- CFDictionarySetValue(buffer_attributes,
- kCVPixelBufferPixelFormatTypeKey,
- cv_pix_fmt);
- CFDictionarySetValue(buffer_attributes,
- kCVPixelBufferIOSurfacePropertiesKey,
- io_surface_properties);
-
- status = VDADecoderCreate(config_info,
- buffer_attributes,
- vda_decoder_callback,
- vda_ctx,
- &vda_ctx->decoder);
-
- CFRelease(height);
- CFRelease(width);
- CFRelease(format);
- CFRelease(avc_data);
- CFRelease(config_info);
- CFRelease(io_surface_properties);
- CFRelease(cv_pix_fmt);
- CFRelease(buffer_attributes);
-
- if (kVDADecoderNoErr != status)
- return status;
-
- return 0;
+ ff_vda_default_free(avctx);
+ av_freep(&avctx->hwaccel_context);
}
-int ff_vda_destroy_decoder(struct vda_context *vda_ctx)
+void ff_vda_default_free(AVCodecContext *avctx)
{
- OSStatus status = kVDADecoderNoErr;
-
- if (vda_ctx->decoder)
- status = VDADecoderDestroy(vda_ctx->decoder);
-
- vda_clear_queue(vda_ctx);
-
- pthread_mutex_destroy(&vda_ctx->queue_mutex);
-
- if (kVDADecoderNoErr != status)
- return status;
-
- return 0;
+ AVVDAContext *vda = avctx->hwaccel_context;
+ if (vda && vda->decoder)
+ VDADecoderDestroy(vda->decoder);
}
-vda_frame *ff_vda_queue_pop(struct vda_context *vda_ctx)
+#else
+AVVDAContext *av_vda_alloc_context(void)
{
- vda_frame *top_frame;
-
- if (!vda_ctx->queue)
- return NULL;
-
- pthread_mutex_lock(&vda_ctx->queue_mutex);
- top_frame = vda_ctx->queue;
- vda_ctx->queue = top_frame->next_frame;
- pthread_mutex_unlock(&vda_ctx->queue_mutex);
-
- return top_frame;
+ return NULL;
}
-void ff_vda_release_vda_frame(vda_frame *frame)
+int av_vda_default_init(AVCodecContext *avctx)
{
- if (frame) {
- CVPixelBufferRelease(frame->cv_buffer);
- av_freep(&frame);
- }
+ return AVERROR(ENOSYS);
}
-int ff_vda_decoder_decode(struct vda_context *vda_ctx,
- uint8_t *bitstream,
- int bitstream_size,
- int64_t frame_pts)
+void av_vda_default_free(AVCodecContext *ctx)
{
- OSStatus status = kVDADecoderNoErr;
- CFDictionaryRef user_info;
- CFDataRef coded_frame;
-
- coded_frame = CFDataCreate(kCFAllocatorDefault, bitstream, bitstream_size);
- user_info = vda_dictionary_with_pts(frame_pts);
- status = VDADecoderDecode(vda_ctx->decoder, 0, coded_frame, user_info);
-
- CFRelease(user_info);
- CFRelease(coded_frame);
-
- if (kVDADecoderNoErr != status)
- return status;
-
- return 0;
}
+#endif
projects / ffmpeg / blobdiff