Commit 67afcefb authored by Anton Khirnov's avatar Anton Khirnov Committed by Luca Barbato
Browse files

lavc: Add new VDA hwaccel



It leverages the new hwaccel 1.2 features:

- get_buffer2 is never called
- the internal context is automatically initialized/deinitialized
Signed-off-by: default avatarLuca Barbato <lu_zero@gentoo.org>
parent 31a46750
......@@ -1896,6 +1896,8 @@ h264_vaapi_hwaccel_deps="vaapi"
h264_vaapi_hwaccel_select="h264_decoder"
h264_vda_hwaccel_deps="vda"
h264_vda_hwaccel_select="h264_decoder"
h264_vda_old_hwaccel_deps="vda"
h264_vda_old_hwaccel_select="h264_decoder"
h264_vdpau_hwaccel_deps="vdpau"
h264_vdpau_hwaccel_select="h264_decoder"
mpeg1_vdpau_hwaccel_deps="vdpau"
......
......@@ -68,6 +68,7 @@ OBJS-$(CONFIG_RDFT) += rdft.o $(RDFT-OBJS-yes)
OBJS-$(CONFIG_SINEWIN) += sinewin.o
OBJS-$(CONFIG_TPELDSP) += tpeldsp.o
OBJS-$(CONFIG_VAAPI) += vaapi.o
OBJS-$(CONFIG_VDA) += vda.o
OBJS-$(CONFIG_VDPAU) += vdpau.o
OBJS-$(CONFIG_VIDEODSP) += videodsp.o
OBJS-$(CONFIG_VP3DSP) += vp3dsp.o
......
......@@ -79,6 +79,7 @@ void avcodec_register_all(void)
REGISTER_HWACCEL(H264_DXVA2, h264_dxva2);
REGISTER_HWACCEL(H264_VAAPI, h264_vaapi);
REGISTER_HWACCEL(H264_VDA, h264_vda);
REGISTER_HWACCEL(H264_VDA_OLD, h264_vda_old);
REGISTER_HWACCEL(H264_VDPAU, h264_vdpau);
REGISTER_HWACCEL(MPEG1_VDPAU, mpeg1_vdpau);
REGISTER_HWACCEL(MPEG2_DXVA2, mpeg2_dxva2);
......
......@@ -153,6 +153,7 @@ static const enum AVPixelFormat h264_hwaccel_pixfmt_list_420[] = {
#endif
#if CONFIG_H264_VDA_HWACCEL
AV_PIX_FMT_VDA_VLD,
AV_PIX_FMT_VDA,
#endif
#if CONFIG_H264_VDPAU_HWACCEL
AV_PIX_FMT_VDPAU,
......@@ -170,6 +171,7 @@ static const enum AVPixelFormat h264_hwaccel_pixfmt_list_jpeg_420[] = {
#endif
#if CONFIG_H264_VDA_HWACCEL
AV_PIX_FMT_VDA_VLD,
AV_PIX_FMT_VDA,
#endif
#if CONFIG_H264_VDPAU_HWACCEL
AV_PIX_FMT_VDPAU,
......
/*
* 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
*/
#include "config.h"
#include "libavutil/mem.h"
#include "vda.h"
#include "vda_internal.h"
#if CONFIG_H264_VDA_HWACCEL
AVVDAContext *av_vda_alloc_context(void)
{
AVVDAContext *ret = av_mallocz(sizeof(*ret));
if (ret)
ret->output_callback = ff_vda_output_callback;
return ret;
}
int av_vda_default_init(AVCodecContext *avctx)
{
avctx->hwaccel_context = av_vda_alloc_context();
if (!avctx->hwaccel_context)
return AVERROR(ENOMEM);
return ff_vda_default_init(avctx);
}
void av_vda_default_free(AVCodecContext *avctx)
{
ff_vda_default_free(avctx);
av_freep(&avctx->hwaccel_context);
}
void ff_vda_default_free(AVCodecContext *avctx)
{
AVVDAContext *vda = avctx->hwaccel_context;
if (vda && vda->decoder)
VDADecoderDestroy(vda->decoder);
}
#else
AVVDAContext *av_vda_alloc_context(void)
{
return NULL;
}
int av_vda_default_init(AVCodecContext *avctx)
{
return AVERROR(ENOSYS);
}
void av_vda_default_free(AVCodecContext *ctx)
{
}
#endif
......@@ -29,6 +29,7 @@
* Public libavcodec VDA header.
*/
#include "libavcodec/avcodec.h"
#include "libavcodec/version.h"
#include <stdint.h>
......@@ -135,6 +136,58 @@ int ff_vda_create_decoder(struct vda_context *vda_ctx,
/** Destroy the video decoder. */
int ff_vda_destroy_decoder(struct vda_context *vda_ctx);
/**
* This struct holds all the information that needs to be passed
* between the caller and libavcodec for initializing VDA decoding.
* Its size is not a part of the public ABI, it must be allocated with
* av_vda_alloc_context() and freed with av_free().
*/
typedef struct AVVDAContext {
/**
* VDA decoder object. Created and freed by the caller.
*/
VDADecoder decoder;
/**
* The output callback that must be passed to VDADecoderCreate.
* Set by av_vda_alloc_context().
*/
VDADecoderOutputCallback output_callback;
} AVVDAContext;
/**
* Allocate and initialize a VDA context.
*
* This function should be called from the get_format() callback when the caller
* selects the AV_PIX_FMT_VDA format. The caller must then create the decoder
* object (using the output callback provided by libavcodec) that will be used
* for VDA-accelerated decoding.
*
* When decoding with VDA is finished, the caller must destroy the decoder
* object and free the VDA context using av_free().
*
* @return the newly allocated context or NULL on failure
*/
AVVDAContext *av_vda_alloc_context(void);
/**
* This is a convenience function that creates and sets up the VDA context using
* an internal implementation.
*
* @param avctx the corresponding codec context
*
* @return >= 0 on success, a negative AVERROR code on failure
*/
int av_vda_default_init(AVCodecContext *avctx);
/**
* This function must be called to free the VDA context initialized with
* av_vda_default_init().
*
* @param avctx the corresponding codec context
*/
void av_vda_default_free(AVCodecContext *avctx);
/**
* @}
*/
......
......@@ -26,7 +26,9 @@
#include "libavutil/avutil.h"
#include "h264.h"
#include "internal.h"
#include "vda.h"
#include "vda_internal.h"
typedef struct VDAContext {
// The current bitstream buffer.
......@@ -37,6 +39,8 @@ typedef struct VDAContext {
// The reference size used for fast reallocation.
int allocated_size;
CVImageBufferRef frame;
} VDAContext;
/* Decoder callback that adds the VDA frame to the queue in display order. */
......@@ -78,7 +82,7 @@ static int vda_sync_decode(VDAContext *ctx, struct vda_context *vda_ctx)
}
static int vda_h264_start_frame(AVCodecContext *avctx,
static int vda_old_h264_start_frame(AVCodecContext *avctx,
av_unused const uint8_t *buffer,
av_unused uint32_t size)
{
......@@ -93,7 +97,7 @@ static int vda_h264_start_frame(AVCodecContext *avctx,
return 0;
}
static int vda_h264_decode_slice(AVCodecContext *avctx,
static int vda_old_h264_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
......@@ -120,7 +124,7 @@ static int vda_h264_decode_slice(AVCodecContext *avctx,
return 0;
}
static int vda_h264_end_frame(AVCodecContext *avctx)
static int vda_old_h264_end_frame(AVCodecContext *avctx)
{
H264Context *h = avctx->priv_data;
VDAContext *vda = avctx->internal->hwaccel_priv_data;
......@@ -208,7 +212,7 @@ int ff_vda_create_decoder(struct vda_context *vda_ctx,
status = VDADecoderCreate(config_info,
buffer_attributes,
vda_decoder_callback,
(VDADecoderOutputCallback *)vda_decoder_callback,
vda_ctx,
&vda_ctx->decoder);
......@@ -234,17 +238,256 @@ int ff_vda_destroy_decoder(struct vda_context *vda_ctx)
return status;
}
static void vda_h264_uninit(AVCodecContext *avctx)
static int vda_h264_uninit(AVCodecContext *avctx)
{
VDAContext *vda = avctx->internal->priv_data;
VDAContext *vda = avctx->internal->hwaccel_priv_data;
av_freep(&vda->bitstream);
if (vda->frame)
CVPixelBufferRelease(vda->frame);
return 0;
}
AVHWAccel ff_h264_vda_hwaccel = {
AVHWAccel ff_h264_vda_old_hwaccel = {
.name = "h264_vda",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_H264,
.pix_fmt = AV_PIX_FMT_VDA_VLD,
.start_frame = vda_old_h264_start_frame,
.decode_slice = vda_old_h264_decode_slice,
.end_frame = vda_old_h264_end_frame,
.uninit = vda_h264_uninit,
.priv_data_size = sizeof(VDAContext),
};
void ff_vda_output_callback(void *opaque,
CFDictionaryRef user_info,
OSStatus status,
uint32_t infoFlags,
CVImageBufferRef image_buffer)
{
AVCodecContext *ctx = opaque;
VDAContext *vda = ctx->internal->hwaccel_priv_data;
if (vda->frame) {
CVPixelBufferRelease(vda->frame);
vda->frame = NULL;
}
if (!image_buffer)
return;
vda->frame = CVPixelBufferRetain(image_buffer);
}
static int vda_h264_start_frame(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
VDAContext *vda = avctx->internal->hwaccel_priv_data;
vda->bitstream_size = 0;
return 0;
}
static int vda_h264_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
VDAContext *vda = avctx->internal->hwaccel_priv_data;
void *tmp;
tmp = av_fast_realloc(vda->bitstream,
&vda->allocated_size,
vda->bitstream_size + size + 4);
if (!tmp)
return AVERROR(ENOMEM);
vda->bitstream = tmp;
AV_WB32(vda->bitstream + vda->bitstream_size, size);
memcpy(vda->bitstream + vda->bitstream_size + 4, buffer, size);
vda->bitstream_size += size + 4;
return 0;
}
static void release_buffer(void *opaque, uint8_t *data)
{
CVImageBufferRef frame = (CVImageBufferRef)data;
CVPixelBufferRelease(frame);
}
static int vda_h264_end_frame(AVCodecContext *avctx)
{
H264Context *h = avctx->priv_data;
VDAContext *vda = avctx->internal->hwaccel_priv_data;
AVVDAContext *vda_ctx = avctx->hwaccel_context;
AVFrame *frame = &h->cur_pic_ptr->f;
uint32_t flush_flags = 1 << 0; ///< kVDADecoderFlush_emitFrames
CFDataRef coded_frame;
OSStatus status;
if (!vda->bitstream_size)
return AVERROR_INVALIDDATA;
coded_frame = CFDataCreate(kCFAllocatorDefault,
vda->bitstream,
vda->bitstream_size);
status = VDADecoderDecode(vda_ctx->decoder, 0, coded_frame, NULL);
if (status == kVDADecoderNoErr)
status = VDADecoderFlush(vda_ctx->decoder, flush_flags);
CFRelease(coded_frame);
if (status != kVDADecoderNoErr) {
av_log(avctx, AV_LOG_ERROR, "Failed to decode frame (%d)\n", status);
return AVERROR_UNKNOWN;
}
if (vda->frame) {
av_buffer_unref(&frame->buf[0]);
frame->buf[0] = av_buffer_create((uint8_t*)vda->frame,
sizeof(vda->frame),
release_buffer, NULL,
AV_BUFFER_FLAG_READONLY);
if (!frame->buf)
return AVERROR(ENOMEM);
frame->data[3] = (uint8_t*)vda->frame;
vda->frame = NULL;
}
return 0;
}
int ff_vda_default_init(AVCodecContext *avctx)
{
AVVDAContext *vda_ctx = avctx->hwaccel_context;
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;
int32_t fmt = 'avc1', pix_fmt = kCVPixelFormatType_422YpCbCr8;
// kCVPixelFormatType_420YpCbCr8Planar;
/* Each VCL NAL in the bistream sent to the decoder
* is preceded by a 4 bytes length header.
* Change the avcC atom header if needed, to signal headers of 4 bytes. */
if (avctx->extradata_size >= 4 && (avctx->extradata[4] & 0x03) != 0x03) {
uint8_t *rw_extradata;
if (!(rw_extradata = av_malloc(avctx->extradata_size)))
return AVERROR(ENOMEM);
memcpy(rw_extradata, avctx->extradata, avctx->extradata_size);
rw_extradata[4] |= 0x03;
avc_data = CFDataCreate(kCFAllocatorDefault, rw_extradata, avctx->extradata_size);
av_freep(&rw_extradata);
} else {
avc_data = CFDataCreate(kCFAllocatorDefault,
avctx->extradata, avctx->extradata_size);
}
config_info = CFDictionaryCreateMutable(kCFAllocatorDefault,
4,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
height = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &avctx->height);
width = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &avctx->width);
format = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &fmt);
CFDictionarySetValue(config_info, kVDADecoderConfiguration_Height, height);
CFDictionarySetValue(config_info, kVDADecoderConfiguration_Width, width);
CFDictionarySetValue(config_info, kVDADecoderConfiguration_avcCData, avc_data);
CFDictionarySetValue(config_info, kVDADecoderConfiguration_SourceFormat, format);
buffer_attributes = CFDictionaryCreateMutable(kCFAllocatorDefault,
2,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
io_surface_properties = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
cv_pix_fmt = CFNumberCreate(kCFAllocatorDefault,
kCFNumberSInt32Type,
&pix_fmt);
CFDictionarySetValue(buffer_attributes,
kCVPixelBufferPixelFormatTypeKey,
cv_pix_fmt);
CFDictionarySetValue(buffer_attributes,
kCVPixelBufferIOSurfacePropertiesKey,
io_surface_properties);
status = VDADecoderCreate(config_info,
buffer_attributes,
(VDADecoderOutputCallback *)ff_vda_output_callback,
avctx,
&vda_ctx->decoder);
CFRelease(format);
CFRelease(height);
CFRelease(width);
CFRelease(avc_data);
CFRelease(config_info);
CFRelease(cv_pix_fmt);
CFRelease(io_surface_properties);
CFRelease(buffer_attributes);
if (status != kVDADecoderNoErr) {
av_log(avctx, AV_LOG_ERROR, "Cannot initialize VDA %d\n", status);
}
switch (status) {
case kVDADecoderHardwareNotSupportedErr:
case kVDADecoderFormatNotSupportedErr:
return AVERROR(ENOSYS);
case kVDADecoderConfigurationError:
return AVERROR(EINVAL);
case kVDADecoderDecoderFailedErr:
return AVERROR_INVALIDDATA;
case kVDADecoderNoErr:
return 0;
default:
return AVERROR_UNKNOWN;
}
}
static int vda_h264_alloc_frame(AVCodecContext *avctx, AVFrame *frame)
{
frame->width = avctx->width;
frame->height = avctx->height;
frame->format = avctx->pix_fmt;
frame->buf[0] = av_buffer_alloc(1);
if (!frame->buf[0])
return AVERROR(ENOMEM);
return 0;
}
AVHWAccel ff_h264_vda_hwaccel = {
.name = "h264_vda",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_H264,
.pix_fmt = AV_PIX_FMT_VDA,
.alloc_frame = vda_h264_alloc_frame,
.start_frame = vda_h264_start_frame,
.decode_slice = vda_h264_decode_slice,
.end_frame = vda_h264_end_frame,
......
/*
* 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"
void ff_vda_output_callback(void *vda_hw_ctx,
CFDictionaryRef user_info,
OSStatus status,
uint32_t infoFlags,
CVImageBufferRef image_buffer);
int ff_vda_default_init(AVCodecContext *avctx);
void ff_vda_default_free(AVCodecContext *avctx);
#endif /* AVCODEC_VDA_INTERNAL_H */
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