#include <CoreFoundation/CFString.h>
#include "libavutil/avutil.h"
-#include "h264.h"
+#include "h264dec.h"
+#include "internal.h"
#include "vda.h"
+#include "vda_internal.h"
+
+typedef struct VDAContext {
+ // The current bitstream buffer.
+ uint8_t *bitstream;
+
+ // The current size of the bitstream.
+ int bitstream_size;
+
+ // 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. */
static void vda_decoder_callback(void *vda_hw_ctx,
vda_ctx->cv_buffer = CVPixelBufferRetain(image_buffer);
}
-static int vda_sync_decode(struct vda_context *vda_ctx)
+static int vda_sync_decode(VDAContext *ctx, struct vda_context *vda_ctx)
{
OSStatus status;
CFDataRef coded_frame;
uint32_t flush_flags = 1 << 0; ///< kVDADecoderFlush_emitFrames
coded_frame = CFDataCreate(kCFAllocatorDefault,
- vda_ctx->priv_bitstream,
- vda_ctx->priv_bitstream_size);
+ ctx->bitstream,
+ ctx->bitstream_size);
status = VDADecoderDecode(vda_ctx->decoder, 0, coded_frame, NULL);
}
-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)
{
+ VDAContext *vda = avctx->internal->hwaccel_priv_data;
struct vda_context *vda_ctx = avctx->hwaccel_context;
if (!vda_ctx->decoder)
return -1;
- vda_ctx->priv_bitstream_size = 0;
+ vda->bitstream_size = 0;
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)
{
+ VDAContext *vda = avctx->internal->hwaccel_priv_data;
struct vda_context *vda_ctx = avctx->hwaccel_context;
void *tmp;
if (!vda_ctx->decoder)
return -1;
- tmp = av_fast_realloc(vda_ctx->priv_bitstream,
- &vda_ctx->priv_allocated_size,
- vda_ctx->priv_bitstream_size + size + 4);
+ tmp = av_fast_realloc(vda->bitstream,
+ &vda->allocated_size,
+ vda->bitstream_size + size + 4);
if (!tmp)
return AVERROR(ENOMEM);
- vda_ctx->priv_bitstream = tmp;
+ vda->bitstream = tmp;
- AV_WB32(vda_ctx->priv_bitstream + vda_ctx->priv_bitstream_size, size);
- memcpy(vda_ctx->priv_bitstream + vda_ctx->priv_bitstream_size + 4, buffer, size);
+ AV_WB32(vda->bitstream + vda->bitstream_size, size);
+ memcpy(vda->bitstream + vda->bitstream_size + 4, buffer, size);
- vda_ctx->priv_bitstream_size += size + 4;
+ vda->bitstream_size += size + 4;
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;
struct vda_context *vda_ctx = avctx->hwaccel_context;
- AVFrame *frame = &h->cur_pic_ptr->f;
+ AVFrame *frame = h->cur_pic_ptr->f;
int status;
- if (!vda_ctx->decoder || !vda_ctx->priv_bitstream)
+ if (!vda_ctx->decoder || !vda->bitstream)
return -1;
- status = vda_sync_decode(vda_ctx);
+ status = vda_sync_decode(vda, vda_ctx);
frame->data[3] = (void*)vda_ctx->cv_buffer;
if (status)
CFMutableDictionaryRef io_surface_properties;
CFNumberRef cv_pix_fmt;
- /* Each VCL NAL in the bistream sent to the decoder
+ /* Each VCL NAL in the bitstream 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 (extradata_size >= 4 && (extradata[4] & 0x03) != 0x03) {
status = VDADecoderCreate(config_info,
buffer_attributes,
- vda_decoder_callback,
+ (VDADecoderOutputCallback *)vda_decoder_callback,
vda_ctx,
&vda_ctx->decoder);
if (vda_ctx->decoder)
status = VDADecoderDestroy(vda_ctx->decoder);
- av_freep(&vda_ctx->priv_bitstream);
-
return status;
}
-AVHWAccel ff_h264_vda_hwaccel = {
+static int vda_h264_uninit(AVCodecContext *avctx)
+{
+ VDAContext *vda = avctx->internal->hwaccel_priv_data;
+ av_freep(&vda->bitstream);
+ if (vda->frame)
+ CVPixelBufferRelease(vda->frame);
+ return 0;
+}
+
+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 (!vda->frame)
+ return AVERROR_UNKNOWN;
+
+ if (status != kVDADecoderNoErr) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to decode frame (%d)\n", status);
+ return AVERROR_UNKNOWN;
+ }
+
+ 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[0])
+ 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 = vda_ctx->cv_pix_fmt_type;
+
+ // kCVPixelFormatType_420YpCbCr8Planar;
+
+ /* Each VCL NAL in the bitstream 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,
+ .uninit = vda_h264_uninit,
+ .priv_data_size = sizeof(VDAContext),
};
projects / ffmpeg / blobdiff