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-rw-r--r--media/ffvpx/libavutil/frame.c928
1 files changed, 928 insertions, 0 deletions
diff --git a/media/ffvpx/libavutil/frame.c b/media/ffvpx/libavutil/frame.c
new file mode 100644
index 0000000000..9545477acc
--- /dev/null
+++ b/media/ffvpx/libavutil/frame.c
@@ -0,0 +1,928 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "channel_layout.h"
+#include "avassert.h"
+#include "buffer.h"
+#include "common.h"
+#include "cpu.h"
+#include "dict.h"
+#include "frame.h"
+#include "imgutils.h"
+#include "mem.h"
+#include "samplefmt.h"
+#include "hwcontext.h"
+
+#if FF_API_OLD_CHANNEL_LAYOUT
+#define CHECK_CHANNELS_CONSISTENCY(frame) \
+ av_assert2(!(frame)->channel_layout || \
+ (frame)->channels == \
+ av_get_channel_layout_nb_channels((frame)->channel_layout))
+#endif
+
+static void get_frame_defaults(AVFrame *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+
+ frame->pts =
+ frame->pkt_dts = AV_NOPTS_VALUE;
+ frame->best_effort_timestamp = AV_NOPTS_VALUE;
+ frame->duration = 0;
+#if FF_API_PKT_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+ frame->pkt_duration = 0;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ frame->pkt_pos = -1;
+ frame->pkt_size = -1;
+ frame->time_base = (AVRational){ 0, 1 };
+ frame->key_frame = 1;
+ frame->sample_aspect_ratio = (AVRational){ 0, 1 };
+ frame->format = -1; /* unknown */
+ frame->extended_data = frame->data;
+ frame->color_primaries = AVCOL_PRI_UNSPECIFIED;
+ frame->color_trc = AVCOL_TRC_UNSPECIFIED;
+ frame->colorspace = AVCOL_SPC_UNSPECIFIED;
+ frame->color_range = AVCOL_RANGE_UNSPECIFIED;
+ frame->chroma_location = AVCHROMA_LOC_UNSPECIFIED;
+ frame->flags = 0;
+}
+
+static void free_side_data(AVFrameSideData **ptr_sd)
+{
+ AVFrameSideData *sd = *ptr_sd;
+
+ av_buffer_unref(&sd->buf);
+ av_dict_free(&sd->metadata);
+ av_freep(ptr_sd);
+}
+
+static void wipe_side_data(AVFrame *frame)
+{
+ int i;
+
+ for (i = 0; i < frame->nb_side_data; i++) {
+ free_side_data(&frame->side_data[i]);
+ }
+ frame->nb_side_data = 0;
+
+ av_freep(&frame->side_data);
+}
+
+AVFrame *av_frame_alloc(void)
+{
+ AVFrame *frame = av_malloc(sizeof(*frame));
+
+ if (!frame)
+ return NULL;
+
+ get_frame_defaults(frame);
+
+ return frame;
+}
+
+void av_frame_free(AVFrame **frame)
+{
+ if (!frame || !*frame)
+ return;
+
+ av_frame_unref(*frame);
+ av_freep(frame);
+}
+
+static int get_video_buffer(AVFrame *frame, int align)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
+ int ret, i, padded_height, total_size;
+ int plane_padding = FFMAX(16 + 16/*STRIDE_ALIGN*/, align);
+ ptrdiff_t linesizes[4];
+ size_t sizes[4];
+
+ if (!desc)
+ return AVERROR(EINVAL);
+
+ if ((ret = av_image_check_size(frame->width, frame->height, 0, NULL)) < 0)
+ return ret;
+
+ if (!frame->linesize[0]) {
+ if (align <= 0)
+ align = 32; /* STRIDE_ALIGN. Should be av_cpu_max_align() */
+
+ for(i=1; i<=align; i+=i) {
+ ret = av_image_fill_linesizes(frame->linesize, frame->format,
+ FFALIGN(frame->width, i));
+ if (ret < 0)
+ return ret;
+ if (!(frame->linesize[0] & (align-1)))
+ break;
+ }
+
+ for (i = 0; i < 4 && frame->linesize[i]; i++)
+ frame->linesize[i] = FFALIGN(frame->linesize[i], align);
+ }
+
+ for (i = 0; i < 4; i++)
+ linesizes[i] = frame->linesize[i];
+
+ padded_height = FFALIGN(frame->height, 32);
+ if ((ret = av_image_fill_plane_sizes(sizes, frame->format,
+ padded_height, linesizes)) < 0)
+ return ret;
+
+ total_size = 4*plane_padding;
+ for (i = 0; i < 4; i++) {
+ if (sizes[i] > INT_MAX - total_size)
+ return AVERROR(EINVAL);
+ total_size += sizes[i];
+ }
+
+ frame->buf[0] = av_buffer_alloc(total_size);
+ if (!frame->buf[0]) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ if ((ret = av_image_fill_pointers(frame->data, frame->format, padded_height,
+ frame->buf[0]->data, frame->linesize)) < 0)
+ goto fail;
+
+ for (i = 1; i < 4; i++) {
+ if (frame->data[i])
+ frame->data[i] += i * plane_padding;
+ }
+
+ frame->extended_data = frame->data;
+
+ return 0;
+fail:
+ av_frame_unref(frame);
+ return ret;
+}
+
+static int get_audio_buffer(AVFrame *frame, int align)
+{
+ int planar = av_sample_fmt_is_planar(frame->format);
+ int channels, planes;
+ int ret, i;
+
+#if FF_API_OLD_CHANNEL_LAYOUT
+FF_DISABLE_DEPRECATION_WARNINGS
+ if (!frame->ch_layout.nb_channels) {
+ if (frame->channel_layout) {
+ av_channel_layout_from_mask(&frame->ch_layout, frame->channel_layout);
+ } else {
+ frame->ch_layout.nb_channels = frame->channels;
+ frame->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
+ }
+ }
+ frame->channels = frame->ch_layout.nb_channels;
+ frame->channel_layout = frame->ch_layout.order == AV_CHANNEL_ORDER_NATIVE ?
+ frame->ch_layout.u.mask : 0;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ channels = frame->ch_layout.nb_channels;
+ planes = planar ? channels : 1;
+ if (!frame->linesize[0]) {
+ ret = av_samples_get_buffer_size(&frame->linesize[0], channels,
+ frame->nb_samples, frame->format,
+ align);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (planes > AV_NUM_DATA_POINTERS) {
+ frame->extended_data = av_calloc(planes,
+ sizeof(*frame->extended_data));
+ frame->extended_buf = av_calloc(planes - AV_NUM_DATA_POINTERS,
+ sizeof(*frame->extended_buf));
+ if (!frame->extended_data || !frame->extended_buf) {
+ av_freep(&frame->extended_data);
+ av_freep(&frame->extended_buf);
+ return AVERROR(ENOMEM);
+ }
+ frame->nb_extended_buf = planes - AV_NUM_DATA_POINTERS;
+ } else
+ frame->extended_data = frame->data;
+
+ for (i = 0; i < FFMIN(planes, AV_NUM_DATA_POINTERS); i++) {
+ frame->buf[i] = av_buffer_alloc(frame->linesize[0]);
+ if (!frame->buf[i]) {
+ av_frame_unref(frame);
+ return AVERROR(ENOMEM);
+ }
+ frame->extended_data[i] = frame->data[i] = frame->buf[i]->data;
+ }
+ for (i = 0; i < planes - AV_NUM_DATA_POINTERS; i++) {
+ frame->extended_buf[i] = av_buffer_alloc(frame->linesize[0]);
+ if (!frame->extended_buf[i]) {
+ av_frame_unref(frame);
+ return AVERROR(ENOMEM);
+ }
+ frame->extended_data[i + AV_NUM_DATA_POINTERS] = frame->extended_buf[i]->data;
+ }
+ return 0;
+
+}
+
+int av_frame_get_buffer(AVFrame *frame, int align)
+{
+ if (frame->format < 0)
+ return AVERROR(EINVAL);
+
+FF_DISABLE_DEPRECATION_WARNINGS
+ if (frame->width > 0 && frame->height > 0)
+ return get_video_buffer(frame, align);
+ else if (frame->nb_samples > 0 &&
+ (av_channel_layout_check(&frame->ch_layout)
+#if FF_API_OLD_CHANNEL_LAYOUT
+ || frame->channel_layout || frame->channels > 0
+#endif
+ ))
+ return get_audio_buffer(frame, align);
+FF_ENABLE_DEPRECATION_WARNINGS
+
+ return AVERROR(EINVAL);
+}
+
+static int frame_copy_props(AVFrame *dst, const AVFrame *src, int force_copy)
+{
+ int ret, i;
+
+ dst->key_frame = src->key_frame;
+ dst->pict_type = src->pict_type;
+ dst->sample_aspect_ratio = src->sample_aspect_ratio;
+ dst->crop_top = src->crop_top;
+ dst->crop_bottom = src->crop_bottom;
+ dst->crop_left = src->crop_left;
+ dst->crop_right = src->crop_right;
+ dst->pts = src->pts;
+ dst->duration = src->duration;
+ dst->repeat_pict = src->repeat_pict;
+ dst->interlaced_frame = src->interlaced_frame;
+ dst->top_field_first = src->top_field_first;
+ dst->palette_has_changed = src->palette_has_changed;
+ dst->sample_rate = src->sample_rate;
+ dst->opaque = src->opaque;
+ dst->pkt_dts = src->pkt_dts;
+ dst->pkt_pos = src->pkt_pos;
+ dst->pkt_size = src->pkt_size;
+#if FF_API_PKT_DURATION
+FF_DISABLE_DEPRECATION_WARNINGS
+ dst->pkt_duration = src->pkt_duration;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ dst->time_base = src->time_base;
+#if FF_API_REORDERED_OPAQUE
+FF_DISABLE_DEPRECATION_WARNINGS
+ dst->reordered_opaque = src->reordered_opaque;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ dst->quality = src->quality;
+ dst->best_effort_timestamp = src->best_effort_timestamp;
+#if FF_API_FRAME_PICTURE_NUMBER
+FF_DISABLE_DEPRECATION_WARNINGS
+ dst->coded_picture_number = src->coded_picture_number;
+ dst->display_picture_number = src->display_picture_number;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ dst->flags = src->flags;
+ dst->decode_error_flags = src->decode_error_flags;
+ dst->color_primaries = src->color_primaries;
+ dst->color_trc = src->color_trc;
+ dst->colorspace = src->colorspace;
+ dst->color_range = src->color_range;
+ dst->chroma_location = src->chroma_location;
+
+ av_dict_copy(&dst->metadata, src->metadata, 0);
+
+ for (i = 0; i < src->nb_side_data; i++) {
+ const AVFrameSideData *sd_src = src->side_data[i];
+ AVFrameSideData *sd_dst;
+ if ( sd_src->type == AV_FRAME_DATA_PANSCAN
+ && (src->width != dst->width || src->height != dst->height))
+ continue;
+ if (force_copy) {
+ sd_dst = av_frame_new_side_data(dst, sd_src->type,
+ sd_src->size);
+ if (!sd_dst) {
+ wipe_side_data(dst);
+ return AVERROR(ENOMEM);
+ }
+ memcpy(sd_dst->data, sd_src->data, sd_src->size);
+ } else {
+ AVBufferRef *ref = av_buffer_ref(sd_src->buf);
+ sd_dst = av_frame_new_side_data_from_buf(dst, sd_src->type, ref);
+ if (!sd_dst) {
+ av_buffer_unref(&ref);
+ wipe_side_data(dst);
+ return AVERROR(ENOMEM);
+ }
+ }
+ av_dict_copy(&sd_dst->metadata, sd_src->metadata, 0);
+ }
+
+ ret = av_buffer_replace(&dst->opaque_ref, src->opaque_ref);
+ ret |= av_buffer_replace(&dst->private_ref, src->private_ref);
+ return ret;
+}
+
+int av_frame_ref(AVFrame *dst, const AVFrame *src)
+{
+ int i, ret = 0;
+
+ av_assert1(dst->width == 0 && dst->height == 0);
+#if FF_API_OLD_CHANNEL_LAYOUT
+FF_DISABLE_DEPRECATION_WARNINGS
+ av_assert1(dst->channels == 0);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ av_assert1(dst->ch_layout.nb_channels == 0 &&
+ dst->ch_layout.order == AV_CHANNEL_ORDER_UNSPEC);
+
+ dst->format = src->format;
+ dst->width = src->width;
+ dst->height = src->height;
+ dst->nb_samples = src->nb_samples;
+#if FF_API_OLD_CHANNEL_LAYOUT
+FF_DISABLE_DEPRECATION_WARNINGS
+ dst->channels = src->channels;
+ dst->channel_layout = src->channel_layout;
+ if (!av_channel_layout_check(&src->ch_layout)) {
+ if (src->channel_layout)
+ av_channel_layout_from_mask(&dst->ch_layout, src->channel_layout);
+ else {
+ dst->ch_layout.nb_channels = src->channels;
+ dst->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
+ }
+ }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ ret = frame_copy_props(dst, src, 0);
+ if (ret < 0)
+ goto fail;
+
+ // this check is needed only until FF_API_OLD_CHANNEL_LAYOUT is out
+ if (av_channel_layout_check(&src->ch_layout)) {
+ ret = av_channel_layout_copy(&dst->ch_layout, &src->ch_layout);
+ if (ret < 0)
+ goto fail;
+ }
+
+ /* duplicate the frame data if it's not refcounted */
+ if (!src->buf[0]) {
+ ret = av_frame_get_buffer(dst, 0);
+ if (ret < 0)
+ goto fail;
+
+ ret = av_frame_copy(dst, src);
+ if (ret < 0)
+ goto fail;
+
+ return 0;
+ }
+
+ /* ref the buffers */
+ for (i = 0; i < FF_ARRAY_ELEMS(src->buf); i++) {
+ if (!src->buf[i])
+ continue;
+ dst->buf[i] = av_buffer_ref(src->buf[i]);
+ if (!dst->buf[i]) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ }
+
+ if (src->extended_buf) {
+ dst->extended_buf = av_calloc(src->nb_extended_buf,
+ sizeof(*dst->extended_buf));
+ if (!dst->extended_buf) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ dst->nb_extended_buf = src->nb_extended_buf;
+
+ for (i = 0; i < src->nb_extended_buf; i++) {
+ dst->extended_buf[i] = av_buffer_ref(src->extended_buf[i]);
+ if (!dst->extended_buf[i]) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ }
+ }
+
+ if (src->hw_frames_ctx) {
+ dst->hw_frames_ctx = av_buffer_ref(src->hw_frames_ctx);
+ if (!dst->hw_frames_ctx) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ }
+
+ /* duplicate extended data */
+ if (src->extended_data != src->data) {
+ int ch = dst->ch_layout.nb_channels;
+
+ if (!ch) {
+ ret = AVERROR(EINVAL);
+ goto fail;
+ }
+
+ dst->extended_data = av_malloc_array(sizeof(*dst->extended_data), ch);
+ if (!dst->extended_data) {
+ ret = AVERROR(ENOMEM);
+ goto fail;
+ }
+ memcpy(dst->extended_data, src->extended_data, sizeof(*src->extended_data) * ch);
+ } else
+ dst->extended_data = dst->data;
+
+ memcpy(dst->data, src->data, sizeof(src->data));
+ memcpy(dst->linesize, src->linesize, sizeof(src->linesize));
+
+ return 0;
+
+fail:
+ av_frame_unref(dst);
+ return ret;
+}
+
+AVFrame *av_frame_clone(const AVFrame *src)
+{
+ AVFrame *ret = av_frame_alloc();
+
+ if (!ret)
+ return NULL;
+
+ if (av_frame_ref(ret, src) < 0)
+ av_frame_free(&ret);
+
+ return ret;
+}
+
+void av_frame_unref(AVFrame *frame)
+{
+ int i;
+
+ if (!frame)
+ return;
+
+ wipe_side_data(frame);
+
+ for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
+ av_buffer_unref(&frame->buf[i]);
+ for (i = 0; i < frame->nb_extended_buf; i++)
+ av_buffer_unref(&frame->extended_buf[i]);
+ av_freep(&frame->extended_buf);
+ av_dict_free(&frame->metadata);
+
+ av_buffer_unref(&frame->hw_frames_ctx);
+
+ av_buffer_unref(&frame->opaque_ref);
+ av_buffer_unref(&frame->private_ref);
+
+ if (frame->extended_data != frame->data)
+ av_freep(&frame->extended_data);
+
+ av_channel_layout_uninit(&frame->ch_layout);
+
+ get_frame_defaults(frame);
+}
+
+void av_frame_move_ref(AVFrame *dst, AVFrame *src)
+{
+ av_assert1(dst->width == 0 && dst->height == 0);
+#if FF_API_OLD_CHANNEL_LAYOUT
+FF_DISABLE_DEPRECATION_WARNINGS
+ av_assert1(dst->channels == 0);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ av_assert1(dst->ch_layout.nb_channels == 0 &&
+ dst->ch_layout.order == AV_CHANNEL_ORDER_UNSPEC);
+
+ *dst = *src;
+ if (src->extended_data == src->data)
+ dst->extended_data = dst->data;
+ get_frame_defaults(src);
+}
+
+int av_frame_is_writable(AVFrame *frame)
+{
+ int i, ret = 1;
+
+ /* assume non-refcounted frames are not writable */
+ if (!frame->buf[0])
+ return 0;
+
+ for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
+ if (frame->buf[i])
+ ret &= !!av_buffer_is_writable(frame->buf[i]);
+ for (i = 0; i < frame->nb_extended_buf; i++)
+ ret &= !!av_buffer_is_writable(frame->extended_buf[i]);
+
+ return ret;
+}
+
+int av_frame_make_writable(AVFrame *frame)
+{
+ AVFrame tmp;
+ int ret;
+
+ if (av_frame_is_writable(frame))
+ return 0;
+
+ memset(&tmp, 0, sizeof(tmp));
+ tmp.format = frame->format;
+ tmp.width = frame->width;
+ tmp.height = frame->height;
+#if FF_API_OLD_CHANNEL_LAYOUT
+FF_DISABLE_DEPRECATION_WARNINGS
+ tmp.channels = frame->channels;
+ tmp.channel_layout = frame->channel_layout;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ tmp.nb_samples = frame->nb_samples;
+ ret = av_channel_layout_copy(&tmp.ch_layout, &frame->ch_layout);
+ if (ret < 0) {
+ av_frame_unref(&tmp);
+ return ret;
+ }
+
+ if (frame->hw_frames_ctx)
+ ret = av_hwframe_get_buffer(frame->hw_frames_ctx, &tmp, 0);
+ else
+ ret = av_frame_get_buffer(&tmp, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = av_frame_copy(&tmp, frame);
+ if (ret < 0) {
+ av_frame_unref(&tmp);
+ return ret;
+ }
+
+ ret = av_frame_copy_props(&tmp, frame);
+ if (ret < 0) {
+ av_frame_unref(&tmp);
+ return ret;
+ }
+
+ av_frame_unref(frame);
+
+ *frame = tmp;
+ if (tmp.data == tmp.extended_data)
+ frame->extended_data = frame->data;
+
+ return 0;
+}
+
+int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
+{
+ return frame_copy_props(dst, src, 1);
+}
+
+AVBufferRef *av_frame_get_plane_buffer(AVFrame *frame, int plane)
+{
+ uint8_t *data;
+ int planes, i;
+
+ if (frame->nb_samples) {
+ int channels = frame->ch_layout.nb_channels;
+
+#if FF_API_OLD_CHANNEL_LAYOUT
+FF_DISABLE_DEPRECATION_WARNINGS
+ if (!channels) {
+ channels = frame->channels;
+ CHECK_CHANNELS_CONSISTENCY(frame);
+ }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+ if (!channels)
+ return NULL;
+ planes = av_sample_fmt_is_planar(frame->format) ? channels : 1;
+ } else
+ planes = 4;
+
+ if (plane < 0 || plane >= planes || !frame->extended_data[plane])
+ return NULL;
+ data = frame->extended_data[plane];
+
+ for (i = 0; i < FF_ARRAY_ELEMS(frame->buf) && frame->buf[i]; i++) {
+ AVBufferRef *buf = frame->buf[i];
+ if (data >= buf->data && data < buf->data + buf->size)
+ return buf;
+ }
+ for (i = 0; i < frame->nb_extended_buf; i++) {
+ AVBufferRef *buf = frame->extended_buf[i];
+ if (data >= buf->data && data < buf->data + buf->size)
+ return buf;
+ }
+ return NULL;
+}
+
+AVFrameSideData *av_frame_new_side_data_from_buf(AVFrame *frame,
+ enum AVFrameSideDataType type,
+ AVBufferRef *buf)
+{
+ AVFrameSideData *ret, **tmp;
+
+ if (!buf)
+ return NULL;
+
+ if (frame->nb_side_data > INT_MAX / sizeof(*frame->side_data) - 1)
+ return NULL;
+
+ tmp = av_realloc(frame->side_data,
+ (frame->nb_side_data + 1) * sizeof(*frame->side_data));
+ if (!tmp)
+ return NULL;
+ frame->side_data = tmp;
+
+ ret = av_mallocz(sizeof(*ret));
+ if (!ret)
+ return NULL;
+
+ ret->buf = buf;
+ ret->data = ret->buf->data;
+ ret->size = buf->size;
+ ret->type = type;
+
+ frame->side_data[frame->nb_side_data++] = ret;
+
+ return ret;
+}
+
+AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
+ enum AVFrameSideDataType type,
+ size_t size)
+{
+ AVFrameSideData *ret;
+ AVBufferRef *buf = av_buffer_alloc(size);
+ ret = av_frame_new_side_data_from_buf(frame, type, buf);
+ if (!ret)
+ av_buffer_unref(&buf);
+ return ret;
+}
+
+AVFrameSideData *av_frame_get_side_data(const AVFrame *frame,
+ enum AVFrameSideDataType type)
+{
+ int i;
+
+ for (i = 0; i < frame->nb_side_data; i++) {
+ if (frame->side_data[i]->type == type)
+ return frame->side_data[i];
+ }
+ return NULL;
+}
+
+static int frame_copy_video(AVFrame *dst, const AVFrame *src)
+{
+ const uint8_t *src_data[4];
+ int i, planes;
+
+ if (dst->width < src->width ||
+ dst->height < src->height)
+ return AVERROR(EINVAL);
+
+ if (src->hw_frames_ctx || dst->hw_frames_ctx)
+ return av_hwframe_transfer_data(dst, src, 0);
+
+ planes = av_pix_fmt_count_planes(dst->format);
+ for (i = 0; i < planes; i++)
+ if (!dst->data[i] || !src->data[i])
+ return AVERROR(EINVAL);
+
+ memcpy(src_data, src->data, sizeof(src_data));
+ av_image_copy(dst->data, dst->linesize,
+ src_data, src->linesize,
+ dst->format, src->width, src->height);
+
+ return 0;
+}
+
+static int frame_copy_audio(AVFrame *dst, const AVFrame *src)
+{
+ int planar = av_sample_fmt_is_planar(dst->format);
+ int channels = dst->ch_layout.nb_channels;
+ int planes = planar ? channels : 1;
+ int i;
+
+#if FF_API_OLD_CHANNEL_LAYOUT
+FF_DISABLE_DEPRECATION_WARNINGS
+ if (!channels || !src->ch_layout.nb_channels) {
+ if (dst->channels != src->channels ||
+ dst->channel_layout != src->channel_layout)
+ return AVERROR(EINVAL);
+ CHECK_CHANNELS_CONSISTENCY(src);
+ }
+ if (!channels) {
+ channels = dst->channels;
+ planes = planar ? channels : 1;
+ }
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ if (dst->nb_samples != src->nb_samples ||
+#if FF_API_OLD_CHANNEL_LAYOUT
+ (av_channel_layout_check(&dst->ch_layout) &&
+ av_channel_layout_check(&src->ch_layout) &&
+#endif
+ av_channel_layout_compare(&dst->ch_layout, &src->ch_layout))
+#if FF_API_OLD_CHANNEL_LAYOUT
+ )
+#endif
+ return AVERROR(EINVAL);
+
+ for (i = 0; i < planes; i++)
+ if (!dst->extended_data[i] || !src->extended_data[i])
+ return AVERROR(EINVAL);
+
+ av_samples_copy(dst->extended_data, src->extended_data, 0, 0,
+ dst->nb_samples, channels, dst->format);
+
+ return 0;
+}
+
+int av_frame_copy(AVFrame *dst, const AVFrame *src)
+{
+ if (dst->format != src->format || dst->format < 0)
+ return AVERROR(EINVAL);
+
+FF_DISABLE_DEPRECATION_WARNINGS
+ if (dst->width > 0 && dst->height > 0)
+ return frame_copy_video(dst, src);
+ else if (dst->nb_samples > 0 &&
+ (av_channel_layout_check(&dst->ch_layout)
+#if FF_API_OLD_CHANNEL_LAYOUT
+ || dst->channels > 0
+#endif
+ ))
+ return frame_copy_audio(dst, src);
+FF_ENABLE_DEPRECATION_WARNINGS
+
+ return AVERROR(EINVAL);
+}
+
+void av_frame_remove_side_data(AVFrame *frame, enum AVFrameSideDataType type)
+{
+ int i;
+
+ for (i = frame->nb_side_data - 1; i >= 0; i--) {
+ AVFrameSideData *sd = frame->side_data[i];
+ if (sd->type == type) {
+ free_side_data(&frame->side_data[i]);
+ frame->side_data[i] = frame->side_data[frame->nb_side_data - 1];
+ frame->nb_side_data--;
+ }
+ }
+}
+
+const char *av_frame_side_data_name(enum AVFrameSideDataType type)
+{
+ switch(type) {
+ case AV_FRAME_DATA_PANSCAN: return "AVPanScan";
+ case AV_FRAME_DATA_A53_CC: return "ATSC A53 Part 4 Closed Captions";
+ case AV_FRAME_DATA_STEREO3D: return "Stereo 3D";
+ case AV_FRAME_DATA_MATRIXENCODING: return "AVMatrixEncoding";
+ case AV_FRAME_DATA_DOWNMIX_INFO: return "Metadata relevant to a downmix procedure";
+ case AV_FRAME_DATA_REPLAYGAIN: return "AVReplayGain";
+ case AV_FRAME_DATA_DISPLAYMATRIX: return "3x3 displaymatrix";
+ case AV_FRAME_DATA_AFD: return "Active format description";
+ case AV_FRAME_DATA_MOTION_VECTORS: return "Motion vectors";
+ case AV_FRAME_DATA_SKIP_SAMPLES: return "Skip samples";
+ case AV_FRAME_DATA_AUDIO_SERVICE_TYPE: return "Audio service type";
+ case AV_FRAME_DATA_MASTERING_DISPLAY_METADATA: return "Mastering display metadata";
+ case AV_FRAME_DATA_CONTENT_LIGHT_LEVEL: return "Content light level metadata";
+ case AV_FRAME_DATA_GOP_TIMECODE: return "GOP timecode";
+ case AV_FRAME_DATA_S12M_TIMECODE: return "SMPTE 12-1 timecode";
+ case AV_FRAME_DATA_SPHERICAL: return "Spherical Mapping";
+ case AV_FRAME_DATA_ICC_PROFILE: return "ICC profile";
+ case AV_FRAME_DATA_DYNAMIC_HDR_PLUS: return "HDR Dynamic Metadata SMPTE2094-40 (HDR10+)";
+ case AV_FRAME_DATA_DYNAMIC_HDR_VIVID: return "HDR Dynamic Metadata CUVA 005.1 2021 (Vivid)";
+ case AV_FRAME_DATA_REGIONS_OF_INTEREST: return "Regions Of Interest";
+ case AV_FRAME_DATA_VIDEO_ENC_PARAMS: return "Video encoding parameters";
+ case AV_FRAME_DATA_SEI_UNREGISTERED: return "H.26[45] User Data Unregistered SEI message";
+ case AV_FRAME_DATA_FILM_GRAIN_PARAMS: return "Film grain parameters";
+ case AV_FRAME_DATA_DETECTION_BBOXES: return "Bounding boxes for object detection and classification";
+ case AV_FRAME_DATA_DOVI_RPU_BUFFER: return "Dolby Vision RPU Data";
+ case AV_FRAME_DATA_DOVI_METADATA: return "Dolby Vision Metadata";
+ case AV_FRAME_DATA_AMBIENT_VIEWING_ENVIRONMENT: return "Ambient viewing environment";
+ }
+ return NULL;
+}
+
+static int calc_cropping_offsets(size_t offsets[4], const AVFrame *frame,
+ const AVPixFmtDescriptor *desc)
+{
+ int i, j;
+
+ for (i = 0; frame->data[i]; i++) {
+ const AVComponentDescriptor *comp = NULL;
+ int shift_x = (i == 1 || i == 2) ? desc->log2_chroma_w : 0;
+ int shift_y = (i == 1 || i == 2) ? desc->log2_chroma_h : 0;
+
+ if (desc->flags & AV_PIX_FMT_FLAG_PAL && i == 1) {
+ offsets[i] = 0;
+ break;
+ }
+
+ /* find any component descriptor for this plane */
+ for (j = 0; j < desc->nb_components; j++) {
+ if (desc->comp[j].plane == i) {
+ comp = &desc->comp[j];
+ break;
+ }
+ }
+ if (!comp)
+ return AVERROR_BUG;
+
+ offsets[i] = (frame->crop_top >> shift_y) * frame->linesize[i] +
+ (frame->crop_left >> shift_x) * comp->step;
+ }
+
+ return 0;
+}
+
+int av_frame_apply_cropping(AVFrame *frame, int flags)
+{
+ const AVPixFmtDescriptor *desc;
+ size_t offsets[4];
+ int i;
+
+ if (!(frame->width > 0 && frame->height > 0))
+ return AVERROR(EINVAL);
+
+ if (frame->crop_left >= INT_MAX - frame->crop_right ||
+ frame->crop_top >= INT_MAX - frame->crop_bottom ||
+ (frame->crop_left + frame->crop_right) >= frame->width ||
+ (frame->crop_top + frame->crop_bottom) >= frame->height)
+ return AVERROR(ERANGE);
+
+ desc = av_pix_fmt_desc_get(frame->format);
+ if (!desc)
+ return AVERROR_BUG;
+
+ /* Apply just the right/bottom cropping for hwaccel formats. Bitstream
+ * formats cannot be easily handled here either (and corresponding decoders
+ * should not export any cropping anyway), so do the same for those as well.
+ * */
+ if (desc->flags & (AV_PIX_FMT_FLAG_BITSTREAM | AV_PIX_FMT_FLAG_HWACCEL)) {
+ frame->width -= frame->crop_right;
+ frame->height -= frame->crop_bottom;
+ frame->crop_right = 0;
+ frame->crop_bottom = 0;
+ return 0;
+ }
+
+ /* calculate the offsets for each plane */
+ calc_cropping_offsets(offsets, frame, desc);
+
+ /* adjust the offsets to avoid breaking alignment */
+ if (!(flags & AV_FRAME_CROP_UNALIGNED)) {
+ int log2_crop_align = frame->crop_left ? ff_ctz(frame->crop_left) : INT_MAX;
+ int min_log2_align = INT_MAX;
+
+ for (i = 0; frame->data[i]; i++) {
+ int log2_align = offsets[i] ? ff_ctz(offsets[i]) : INT_MAX;
+ min_log2_align = FFMIN(log2_align, min_log2_align);
+ }
+
+ /* we assume, and it should always be true, that the data alignment is
+ * related to the cropping alignment by a constant power-of-2 factor */
+ if (log2_crop_align < min_log2_align)
+ return AVERROR_BUG;
+
+ if (min_log2_align < 5) {
+ frame->crop_left &= ~((1 << (5 + log2_crop_align - min_log2_align)) - 1);
+ calc_cropping_offsets(offsets, frame, desc);
+ }
+ }
+
+ for (i = 0; frame->data[i]; i++)
+ frame->data[i] += offsets[i];
+
+ frame->width -= (frame->crop_left + frame->crop_right);
+ frame->height -= (frame->crop_top + frame->crop_bottom);
+ frame->crop_left = 0;
+ frame->crop_right = 0;
+ frame->crop_top = 0;
+ frame->crop_bottom = 0;
+
+ return 0;
+}