mirror of https://github.com/FFmpeg/FFmpeg.git
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>pull/2/head
Sebastien Zwickert
13 years ago
committed by
Luca Barbato
parent
d8a091698a
commit
ac3dbb4d58
14 changed files with 581 additions and 3 deletions
@ -0,0 +1,259 @@ |
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/*
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* VDA hardware acceleration |
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* |
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* copyright (c) 2011 Sebastien Zwickert |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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 <pthread.h> |
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#include <CoreFoundation/CFDictionary.h> |
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#include <CoreFoundation/CFNumber.h> |
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#include <CoreFoundation/CFData.h> |
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#include <CoreFoundation/CFString.h> |
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#include "libavutil/avutil.h" |
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#include "vda_internal.h" |
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/* helper to create a dictionary according to the given pts */ |
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static CFDictionaryRef vda_dictionary_with_pts(int64_t i_pts) |
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{ |
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CFStringRef key = CFSTR("FF_VDA_DECODER_PTS_KEY"); |
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CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, |
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kCFNumberSInt64Type, &i_pts); |
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CFDictionaryRef user_info = CFDictionaryCreate(kCFAllocatorDefault, |
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(const void **)&key, |
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(const void **)&value, |
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1, |
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&kCFTypeDictionaryKeyCallBacks, |
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&kCFTypeDictionaryValueCallBacks); |
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CFRelease(value); |
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return user_info; |
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} |
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/* helper to retrieve the pts from the given dictionary */ |
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static int64_t vda_pts_from_dictionary(CFDictionaryRef user_info) |
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{ |
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CFNumberRef pts; |
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int64_t outValue = 0; |
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if (!user_info) |
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return 0; |
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pts = CFDictionaryGetValue(user_info, CFSTR("FF_VDA_DECODER_PTS_KEY")); |
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if (pts) |
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CFNumberGetValue(pts, kCFNumberSInt64Type, &outValue); |
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return outValue; |
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} |
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/* Remove and release all frames from the queue. */ |
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static void vda_clear_queue(struct vda_context *vda_ctx) |
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{ |
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vda_frame *top_frame; |
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pthread_mutex_lock(&vda_ctx->queue_mutex); |
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while (vda_ctx->queue) { |
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top_frame = vda_ctx->queue; |
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vda_ctx->queue = top_frame->next_frame; |
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ff_vda_release_vda_frame(top_frame); |
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} |
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pthread_mutex_unlock(&vda_ctx->queue_mutex); |
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} |
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/* Decoder callback that adds the VDA frame to the queue in display order. */ |
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static void vda_decoder_callback(void *vda_hw_ctx, |
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CFDictionaryRef user_info, |
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OSStatus status, |
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uint32_t infoFlags, |
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CVImageBufferRef image_buffer) |
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{ |
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struct vda_context *vda_ctx = vda_hw_ctx; |
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vda_frame *new_frame; |
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vda_frame *queue_walker; |
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if (!image_buffer) |
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return; |
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if (vda_ctx->cv_pix_fmt_type != CVPixelBufferGetPixelFormatType(image_buffer)) |
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return; |
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if (!(new_frame = av_mallocz(sizeof(vda_frame)))) |
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return; |
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new_frame->next_frame = NULL; |
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new_frame->cv_buffer = CVPixelBufferRetain(image_buffer); |
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new_frame->pts = vda_pts_from_dictionary(user_info); |
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pthread_mutex_lock(&vda_ctx->queue_mutex); |
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queue_walker = vda_ctx->queue; |
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if (!queue_walker || new_frame->pts < queue_walker->pts) { |
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/* we have an empty queue, or this frame earlier than the current queue head */ |
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new_frame->next_frame = queue_walker; |
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vda_ctx->queue = new_frame; |
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} else { |
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/* walk the queue and insert this frame where it belongs in display order */ |
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vda_frame *next_frame; |
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while (1) { |
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next_frame = queue_walker->next_frame; |
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if (!next_frame || new_frame->pts < next_frame->pts) { |
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new_frame->next_frame = next_frame; |
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queue_walker->next_frame = new_frame; |
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break; |
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} |
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queue_walker = next_frame; |
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} |
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} |
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pthread_mutex_unlock(&vda_ctx->queue_mutex); |
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} |
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int ff_vda_create_decoder(struct vda_context *vda_ctx, |
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uint8_t *extradata, |
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int extradata_size) |
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{ |
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OSStatus status = kVDADecoderNoErr; |
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CFNumberRef height; |
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CFNumberRef width; |
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CFNumberRef format; |
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CFDataRef avc_data; |
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CFMutableDictionaryRef config_info; |
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CFMutableDictionaryRef buffer_attributes; |
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CFMutableDictionaryRef io_surface_properties; |
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CFNumberRef cv_pix_fmt; |
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pthread_mutex_init(&vda_ctx->queue_mutex, NULL); |
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config_info = CFDictionaryCreateMutable(kCFAllocatorDefault, |
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4, |
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&kCFTypeDictionaryKeyCallBacks, |
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&kCFTypeDictionaryValueCallBacks); |
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height = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->height); |
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width = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->width); |
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format = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->format); |
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avc_data = CFDataCreate(kCFAllocatorDefault, extradata, extradata_size); |
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CFDictionarySetValue(config_info, kVDADecoderConfiguration_Height, height); |
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CFDictionarySetValue(config_info, kVDADecoderConfiguration_Width, width); |
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CFDictionarySetValue(config_info, kVDADecoderConfiguration_SourceFormat, format); |
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CFDictionarySetValue(config_info, kVDADecoderConfiguration_avcCData, avc_data); |
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buffer_attributes = CFDictionaryCreateMutable(kCFAllocatorDefault, |
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2, |
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&kCFTypeDictionaryKeyCallBacks, |
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&kCFTypeDictionaryValueCallBacks); |
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io_surface_properties = CFDictionaryCreateMutable(kCFAllocatorDefault, |
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0, |
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&kCFTypeDictionaryKeyCallBacks, |
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&kCFTypeDictionaryValueCallBacks); |
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cv_pix_fmt = CFNumberCreate(kCFAllocatorDefault, |
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kCFNumberSInt32Type, |
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&vda_ctx->cv_pix_fmt_type); |
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CFDictionarySetValue(buffer_attributes, |
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kCVPixelBufferPixelFormatTypeKey, |
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cv_pix_fmt); |
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CFDictionarySetValue(buffer_attributes, |
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kCVPixelBufferIOSurfacePropertiesKey, |
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io_surface_properties); |
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status = VDADecoderCreate(config_info, |
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buffer_attributes, |
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vda_decoder_callback, |
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vda_ctx, |
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&vda_ctx->decoder); |
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CFRelease(height); |
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CFRelease(width); |
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CFRelease(format); |
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CFRelease(avc_data); |
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CFRelease(config_info); |
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CFRelease(io_surface_properties); |
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CFRelease(cv_pix_fmt); |
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CFRelease(buffer_attributes); |
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if (kVDADecoderNoErr != status) |
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return status; |
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return 0; |
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} |
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int ff_vda_destroy_decoder(struct vda_context *vda_ctx) |
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{ |
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OSStatus status = kVDADecoderNoErr; |
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if (vda_ctx->decoder) |
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status = VDADecoderDestroy(vda_ctx->decoder); |
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vda_clear_queue(vda_ctx); |
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pthread_mutex_destroy(&vda_ctx->queue_mutex); |
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if (kVDADecoderNoErr != status) |
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return status; |
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return 0; |
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} |
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vda_frame *ff_vda_queue_pop(struct vda_context *vda_ctx) |
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{ |
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vda_frame *top_frame; |
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if (!vda_ctx->queue) |
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return NULL; |
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pthread_mutex_lock(&vda_ctx->queue_mutex); |
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top_frame = vda_ctx->queue; |
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vda_ctx->queue = top_frame->next_frame; |
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pthread_mutex_unlock(&vda_ctx->queue_mutex); |
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return top_frame; |
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} |
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void ff_vda_release_vda_frame(vda_frame *frame) |
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{ |
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if (frame) { |
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CVPixelBufferRelease(frame->cv_buffer); |
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av_freep(&frame); |
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} |
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} |
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int ff_vda_decoder_decode(struct vda_context *vda_ctx, |
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uint8_t *bitstream, |
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int bitstream_size, |
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int64_t frame_pts) |
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{ |
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OSStatus status = kVDADecoderNoErr; |
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CFDictionaryRef user_info; |
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CFDataRef coded_frame; |
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coded_frame = CFDataCreate(kCFAllocatorDefault, bitstream, bitstream_size); |
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user_info = vda_dictionary_with_pts(frame_pts); |
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status = VDADecoderDecode(vda_ctx->decoder, 0, coded_frame, user_info); |
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CFRelease(user_info); |
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CFRelease(coded_frame); |
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if (kVDADecoderNoErr != status) |
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return status; |
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return 0; |
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} |
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@ -0,0 +1,144 @@ |
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/*
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* VDA HW acceleration |
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* |
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* copyright (c) 2011 Sebastien Zwickert |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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* Libav 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 Libav; 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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#ifndef AVCODEC_VDA_H |
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#define AVCODEC_VDA_H |
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#include <pthread.h> |
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#include <stdint.h> |
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// emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes
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// http://openradar.appspot.com/8026390
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#undef __GNUC_STDC_INLINE__ |
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#define Picture QuickdrawPicture |
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#include <VideoDecodeAcceleration/VDADecoder.h> |
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#undef Picture |
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/**
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* This structure is used to store a decoded frame information and data. |
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*/ |
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typedef struct vda_frame { |
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/**
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* The PTS of the frame. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by libavcodec. |
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*/ |
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int64_t pts; |
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/**
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* The CoreVideo buffer that contains the decoded data. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by libavcodec. |
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*/ |
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CVPixelBufferRef cv_buffer; |
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/**
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* A pointer to the next frame. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by libavcodec. |
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*/ |
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struct vda_frame *next_frame; |
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} vda_frame; |
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/**
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* This structure is used to provide the necessary configurations and data |
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* to the VDA Libav HWAccel implementation. |
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* |
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* The application must make it available as AVCodecContext.hwaccel_context. |
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*/ |
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struct vda_context { |
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/**
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* VDA decoder object. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by libavcodec. |
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*/ |
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VDADecoder decoder; |
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/**
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* VDA frames queue ordered by presentation timestamp. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by libavcodec. |
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*/ |
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vda_frame *queue; |
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/**
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* Mutex for locking queue operations. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by libavcodec. |
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*/ |
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pthread_mutex_t queue_mutex; |
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/**
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* The frame width. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by user. |
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*/ |
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int width; |
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/**
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* The frame height. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by user. |
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*/ |
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int height; |
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/**
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* The frame format. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by user. |
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*/ |
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int format; |
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/**
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* The pixel format for output image buffers. |
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* |
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* - encoding: unused |
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* - decoding: Set/Unset by user. |
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*/ |
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OSType cv_pix_fmt_type; |
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}; |
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/** Create the video decoder. */ |
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int ff_vda_create_decoder(struct vda_context *vda_ctx, |
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uint8_t *extradata, |
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int extradata_size); |
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/** Destroy the video decoder. */ |
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int ff_vda_destroy_decoder(struct vda_context *vda_ctx); |
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/** Return the top frame of the queue. */ |
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vda_frame *ff_vda_queue_pop(struct vda_context *vda_ctx); |
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/** Release the given frame. */ |
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void ff_vda_release_vda_frame(vda_frame *frame); |
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#endif /* AVCODEC_VDA_H */ |
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@ -0,0 +1,110 @@ |
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/*
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* VDA H.264 hardware acceleration |
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* |
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* copyright (c) 2011 Sebastien Zwickert |
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* |
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* This file is part of Libav. |
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* |
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* Libav 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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|
* Libav 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 Libav; 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 "h264.h" |
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#include "h264data.h" |
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#include "vda_internal.h" |
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/* This structure is used to store the bitstream of the current frame. */ |
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struct vda_picture_context { |
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uint8_t *bitstream; |
||||||
|
int bitstream_size; |
||||||
|
}; |
||||||
|
|
||||||
|
static int start_frame(AVCodecContext *avctx, |
||||||
|
av_unused const uint8_t *buffer, |
||||||
|
av_unused uint32_t size) |
||||||
|
{ |
||||||
|
const H264Context *h = avctx->priv_data; |
||||||
|
struct vda_context *vda_ctx = avctx->hwaccel_context; |
||||||
|
struct vda_picture_context *pic_ctx = h->s.current_picture_ptr->f.hwaccel_picture_private; |
||||||
|
|
||||||
|
if (!vda_ctx->decoder) |
||||||
|
return -1; |
||||||
|
|
||||||
|
pic_ctx->bitstream = NULL; |
||||||
|
pic_ctx->bitstream_size = 0; |
||||||
|
|
||||||
|
return 0; |
||||||
|
} |
||||||
|
|
||||||
|
static int decode_slice(AVCodecContext *avctx, |
||||||
|
const uint8_t *buffer, |
||||||
|
uint32_t size) |
||||||
|
{ |
||||||
|
H264Context *h = avctx->priv_data; |
||||||
|
struct vda_context *vda_ctx = avctx->hwaccel_context; |
||||||
|
struct vda_picture_context *pic_ctx = h->s.current_picture_ptr->f.hwaccel_picture_private; |
||||||
|
void *tmp; |
||||||
|
|
||||||
|
if (!vda_ctx->decoder) |
||||||
|
return -1; |
||||||
|
|
||||||
|
tmp = av_realloc(pic_ctx->bitstream, pic_ctx->bitstream_size+size+4); |
||||||
|
if (!tmp) |
||||||
|
return AVERROR(ENOMEM); |
||||||
|
|
||||||
|
pic_ctx->bitstream = tmp; |
||||||
|
|
||||||
|
AV_WB32(pic_ctx->bitstream + pic_ctx->bitstream_size, size); |
||||||
|
memcpy(pic_ctx->bitstream + pic_ctx->bitstream_size + 4, buffer, size); |
||||||
|
|
||||||
|
pic_ctx->bitstream_size += size + 4; |
||||||
|
|
||||||
|
return 0; |
||||||
|
} |
||||||
|
|
||||||
|
static int end_frame(AVCodecContext *avctx) |
||||||
|
{ |
||||||
|
H264Context *h = avctx->priv_data; |
||||||
|
struct vda_context *vda_ctx = avctx->hwaccel_context; |
||||||
|
struct vda_picture_context *pic_ctx = h->s.current_picture_ptr->f.hwaccel_picture_private; |
||||||
|
AVFrame *frame = &h->s.current_picture_ptr->f; |
||||||
|
int status; |
||||||
|
|
||||||
|
if (!vda_ctx->decoder || !pic_ctx->bitstream) |
||||||
|
return -1; |
||||||
|
|
||||||
|
status = ff_vda_decoder_decode(vda_ctx, pic_ctx->bitstream, |
||||||
|
pic_ctx->bitstream_size, |
||||||
|
frame->reordered_opaque); |
||||||
|
|
||||||
|
if (status) |
||||||
|
av_log(avctx, AV_LOG_ERROR, "Failed to decode frame (%d)\n", status); |
||||||
|
|
||||||
|
av_freep(&pic_ctx->bitstream); |
||||||
|
|
||||||
|
return status; |
||||||
|
} |
||||||
|
|
||||||
|
AVHWAccel ff_h264_vda_hwaccel = { |
||||||
|
.name = "h264_vda", |
||||||
|
.type = AVMEDIA_TYPE_VIDEO, |
||||||
|
.id = CODEC_ID_H264, |
||||||
|
.pix_fmt = PIX_FMT_VDA_VLD, |
||||||
|
.capabilities = 0, |
||||||
|
.start_frame = start_frame, |
||||||
|
.decode_slice = decode_slice, |
||||||
|
.end_frame = end_frame, |
||||||
|
.priv_data_size = sizeof(struct vda_picture_context), |
||||||
|
}; |
||||||
@ -0,0 +1,42 @@ |
|||||||
|
/*
|
||||||
|
* VDA hardware acceleration |
||||||
|
* |
||||||
|
* copyright (c) 2011 Sebastien Zwickert |
||||||
|
* |
||||||
|
* This file is part of Libav. |
||||||
|
* |
||||||
|
* Libav 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. |
||||||
|
* |
||||||
|
* Libav 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 Libav; if not, write to the Free Software |
||||||
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
||||||
|
*/ |
||||||
|
|
||||||
|
#ifndef AVCODEC_VDA_INTERNAL_H |
||||||
|
#define AVCODEC_VDA_INTERNAL_H |
||||||
|
|
||||||
|
#include "vda.h" |
||||||
|
|
||||||
|
/**
|
||||||
|
* @addtogroup VDA_Decoding |
||||||
|
* |
||||||
|
* @{ |
||||||
|
*/ |
||||||
|
|
||||||
|
/** Send frame data to the hardware decoder. */ |
||||||
|
int ff_vda_decoder_decode(struct vda_context *vda_ctx, |
||||||
|
uint8_t *bitstream, |
||||||
|
int bitstream_size, |
||||||
|
int64_t frame_pts); |
||||||
|
|
||||||
|
/* @} */ |
||||||
|
|
||||||
|
#endif /* AVCODEC_VDA_INTERNAL_H */ |
||||||
Loading…
Reference in new issue