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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_scale/generic/yv12config.c | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/third_party/aom/aom_scale/generic/yv12config.c b/third_party/aom/aom_scale/generic/yv12config.c new file mode 100644 index 0000000000..94b400b9e0 --- /dev/null +++ b/third_party/aom/aom_scale/generic/yv12config.c @@ -0,0 +1,312 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include <assert.h> + +#include "aom/internal/aom_image_internal.h" +#include "aom_dsp/pyramid.h" +#include "aom_dsp/flow_estimation/corner_detect.h" +#include "aom_mem/aom_mem.h" +#include "aom_ports/mem.h" +#include "aom_scale/yv12config.h" +#include "av1/common/enums.h" + +/**************************************************************************** + * Exports + ****************************************************************************/ + +/**************************************************************************** + * + ****************************************************************************/ + +// TODO(jkoleszar): Maybe replace this with struct aom_image +int aom_free_frame_buffer(YV12_BUFFER_CONFIG *ybf) { + if (ybf) { + if (ybf->buffer_alloc_sz > 0) { + aom_free(ybf->buffer_alloc); + } +#if CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY + if (ybf->y_pyramid) { + aom_free_pyramid(ybf->y_pyramid); + } + if (ybf->corners) { + av1_free_corner_list(ybf->corners); + } +#endif // CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY + aom_remove_metadata_from_frame_buffer(ybf); + /* buffer_alloc isn't accessed by most functions. Rather y_buffer, + u_buffer and v_buffer point to buffer_alloc and are used. Clear out + all of this so that a freed pointer isn't inadvertently used */ + memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG)); + return 0; + } + + return AOM_CODEC_MEM_ERROR; +} + +static int realloc_frame_buffer_aligned( + YV12_BUFFER_CONFIG *ybf, int width, int height, int ss_x, int ss_y, + int use_highbitdepth, int border, int byte_alignment, + aom_codec_frame_buffer_t *fb, aom_get_frame_buffer_cb_fn_t cb, + void *cb_priv, const int y_stride, const uint64_t yplane_size, + const uint64_t uvplane_size, const int aligned_width, + const int aligned_height, const int uv_width, const int uv_height, + const int uv_stride, const int uv_border_w, const int uv_border_h, + int num_pyramid_levels, int alloc_y_plane_only) { + if (ybf) { + const int aom_byte_align = (byte_alignment == 0) ? 1 : byte_alignment; + const uint64_t frame_size = + (1 + use_highbitdepth) * (yplane_size + 2 * uvplane_size); + + uint8_t *buf = NULL; + +#if CONFIG_REALTIME_ONLY || !CONFIG_AV1_ENCODER + // We should only need an 8-bit version of the source frame if we are + // encoding in non-realtime mode + (void)num_pyramid_levels; + assert(num_pyramid_levels == 0); +#endif // CONFIG_REALTIME_ONLY || !CONFIG_AV1_ENCODER + +#if defined AOM_MAX_ALLOCABLE_MEMORY + // The size of ybf->buffer_alloc. + uint64_t alloc_size = frame_size; +#if CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY + // The size of ybf->y_pyramid + if (num_pyramid_levels > 0) { + alloc_size += aom_get_pyramid_alloc_size( + width, height, num_pyramid_levels, use_highbitdepth); + alloc_size += av1_get_corner_list_size(); + } +#endif // CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY + // The decoder may allocate REF_FRAMES frame buffers in the frame buffer + // pool. Bound the total amount of allocated memory as if these REF_FRAMES + // frame buffers were allocated in a single allocation. + if (alloc_size > AOM_MAX_ALLOCABLE_MEMORY / REF_FRAMES) + return AOM_CODEC_MEM_ERROR; +#endif + + if (cb != NULL) { + const int align_addr_extra_size = 31; + const uint64_t external_frame_size = frame_size + align_addr_extra_size; + + assert(fb != NULL); + + if (external_frame_size != (size_t)external_frame_size) + return AOM_CODEC_MEM_ERROR; + + // Allocation to hold larger frame, or first allocation. + if (cb(cb_priv, (size_t)external_frame_size, fb) < 0) + return AOM_CODEC_MEM_ERROR; + + if (fb->data == NULL || fb->size < external_frame_size) + return AOM_CODEC_MEM_ERROR; + + ybf->buffer_alloc = (uint8_t *)aom_align_addr(fb->data, 32); + +#if defined(__has_feature) +#if __has_feature(memory_sanitizer) + // This memset is needed for fixing the issue of using uninitialized + // value in msan test. It will cause a perf loss, so only do this for + // msan test. + memset(ybf->buffer_alloc, 0, (size_t)frame_size); +#endif +#endif + } else if (frame_size > ybf->buffer_alloc_sz) { + // Allocation to hold larger frame, or first allocation. + aom_free(ybf->buffer_alloc); + ybf->buffer_alloc = NULL; + ybf->buffer_alloc_sz = 0; + + if (frame_size != (size_t)frame_size) return AOM_CODEC_MEM_ERROR; + + ybf->buffer_alloc = (uint8_t *)aom_memalign(32, (size_t)frame_size); + if (!ybf->buffer_alloc) return AOM_CODEC_MEM_ERROR; + + ybf->buffer_alloc_sz = (size_t)frame_size; + + // This memset is needed for fixing valgrind error from C loop filter + // due to access uninitialized memory in frame border. It could be + // removed if border is totally removed. + memset(ybf->buffer_alloc, 0, ybf->buffer_alloc_sz); + } + + ybf->y_crop_width = width; + ybf->y_crop_height = height; + ybf->y_width = aligned_width; + ybf->y_height = aligned_height; + ybf->y_stride = y_stride; + + ybf->uv_crop_width = (width + ss_x) >> ss_x; + ybf->uv_crop_height = (height + ss_y) >> ss_y; + ybf->uv_width = uv_width; + ybf->uv_height = uv_height; + ybf->uv_stride = uv_stride; + + ybf->border = border; + ybf->frame_size = (size_t)frame_size; + ybf->subsampling_x = ss_x; + ybf->subsampling_y = ss_y; + + buf = ybf->buffer_alloc; + if (use_highbitdepth) { + // Store uint16 addresses when using 16bit framebuffers + buf = CONVERT_TO_BYTEPTR(ybf->buffer_alloc); + ybf->flags = YV12_FLAG_HIGHBITDEPTH; + } else { + ybf->flags = 0; + } + + ybf->y_buffer = (uint8_t *)aom_align_addr( + buf + (border * y_stride) + border, aom_byte_align); + if (!alloc_y_plane_only) { + ybf->u_buffer = (uint8_t *)aom_align_addr( + buf + yplane_size + (uv_border_h * uv_stride) + uv_border_w, + aom_byte_align); + ybf->v_buffer = + (uint8_t *)aom_align_addr(buf + yplane_size + uvplane_size + + (uv_border_h * uv_stride) + uv_border_w, + aom_byte_align); + } else { + ybf->u_buffer = NULL; + ybf->v_buffer = NULL; + } + + ybf->use_external_reference_buffers = 0; + +#if CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY + if (ybf->y_pyramid) { + aom_free_pyramid(ybf->y_pyramid); + ybf->y_pyramid = NULL; + } + if (ybf->corners) { + av1_free_corner_list(ybf->corners); + ybf->corners = NULL; + } + if (num_pyramid_levels > 0) { + ybf->y_pyramid = aom_alloc_pyramid(width, height, num_pyramid_levels, + use_highbitdepth); + if (!ybf->y_pyramid) return AOM_CODEC_MEM_ERROR; + ybf->corners = av1_alloc_corner_list(); + if (!ybf->corners) return AOM_CODEC_MEM_ERROR; + } +#endif // CONFIG_AV1_ENCODER && !CONFIG_REALTIME_ONLY + + ybf->corrupted = 0; /* assume not corrupted by errors */ + return 0; + } + return AOM_CODEC_MEM_ERROR; +} + +static int calc_stride_and_planesize( + const int ss_x, const int ss_y, const int aligned_width, + const int aligned_height, const int border, const int byte_alignment, + int alloc_y_plane_only, int *y_stride, int *uv_stride, + uint64_t *yplane_size, uint64_t *uvplane_size, const int uv_height) { + /* Only support allocating buffers that have a border that's a multiple + * of 32. The border restriction is required to get 16-byte alignment of + * the start of the chroma rows without introducing an arbitrary gap + * between planes, which would break the semantics of things like + * aom_img_set_rect(). */ + if (border & 0x1f) return AOM_CODEC_MEM_ERROR; + *y_stride = aom_calc_y_stride(aligned_width, border); + *yplane_size = + (aligned_height + 2 * border) * (uint64_t)(*y_stride) + byte_alignment; + + if (!alloc_y_plane_only) { + *uv_stride = *y_stride >> ss_x; + *uvplane_size = + (uv_height + 2 * (border >> ss_y)) * (uint64_t)(*uv_stride) + + byte_alignment; + } else { + *uv_stride = 0; + *uvplane_size = 0; + } + return 0; +} + +int aom_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height, + int ss_x, int ss_y, int use_highbitdepth, + int border, int byte_alignment, + aom_codec_frame_buffer_t *fb, + aom_get_frame_buffer_cb_fn_t cb, void *cb_priv, + int num_pyramid_levels, int alloc_y_plane_only) { +#if CONFIG_SIZE_LIMIT + if (width > DECODE_WIDTH_LIMIT || height > DECODE_HEIGHT_LIMIT) + return AOM_CODEC_MEM_ERROR; +#endif + + if (ybf) { + int y_stride = 0; + int uv_stride = 0; + uint64_t yplane_size = 0; + uint64_t uvplane_size = 0; + const int aligned_width = (width + 7) & ~7; + const int aligned_height = (height + 7) & ~7; + const int uv_width = aligned_width >> ss_x; + const int uv_height = aligned_height >> ss_y; + const int uv_border_w = border >> ss_x; + const int uv_border_h = border >> ss_y; + + int error = calc_stride_and_planesize( + ss_x, ss_y, aligned_width, aligned_height, border, byte_alignment, + alloc_y_plane_only, &y_stride, &uv_stride, &yplane_size, &uvplane_size, + uv_height); + if (error) return error; + return realloc_frame_buffer_aligned( + ybf, width, height, ss_x, ss_y, use_highbitdepth, border, + byte_alignment, fb, cb, cb_priv, y_stride, yplane_size, uvplane_size, + aligned_width, aligned_height, uv_width, uv_height, uv_stride, + uv_border_w, uv_border_h, num_pyramid_levels, alloc_y_plane_only); + } + return AOM_CODEC_MEM_ERROR; +} + +int aom_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height, + int ss_x, int ss_y, int use_highbitdepth, int border, + int byte_alignment, int num_pyramid_levels, + int alloc_y_plane_only) { + if (ybf) { + aom_free_frame_buffer(ybf); + return aom_realloc_frame_buffer(ybf, width, height, ss_x, ss_y, + use_highbitdepth, border, byte_alignment, + NULL, NULL, NULL, num_pyramid_levels, + alloc_y_plane_only); + } + return AOM_CODEC_MEM_ERROR; +} + +void aom_remove_metadata_from_frame_buffer(YV12_BUFFER_CONFIG *ybf) { + if (ybf && ybf->metadata) { + aom_img_metadata_array_free(ybf->metadata); + ybf->metadata = NULL; + } +} + +int aom_copy_metadata_to_frame_buffer(YV12_BUFFER_CONFIG *ybf, + const aom_metadata_array_t *arr) { + if (!ybf || !arr || !arr->metadata_array) return -1; + if (ybf->metadata == arr) return 0; + aom_remove_metadata_from_frame_buffer(ybf); + ybf->metadata = aom_img_metadata_array_alloc(arr->sz); + if (!ybf->metadata) return -1; + for (size_t i = 0; i < ybf->metadata->sz; i++) { + ybf->metadata->metadata_array[i] = aom_img_metadata_alloc( + arr->metadata_array[i]->type, arr->metadata_array[i]->payload, + arr->metadata_array[i]->sz, arr->metadata_array[i]->insert_flag); + if (ybf->metadata->metadata_array[i] == NULL) { + aom_img_metadata_array_free(ybf->metadata); + ybf->metadata = NULL; + return -1; + } + } + ybf->metadata->sz = arr->sz; + return 0; +} |