2012-10-17 09:51:01 +00:00
|
|
|
/*
|
2013-03-08 19:18:45 +00:00
|
|
|
* This file is part of FFmpeg.
|
2012-10-17 09:51:01 +00:00
|
|
|
*
|
2013-03-08 19:18:45 +00:00
|
|
|
* FFmpeg is free software; you can redistribute it and/or
|
2012-10-17 09:51:01 +00:00
|
|
|
* 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.
|
|
|
|
*
|
2013-03-08 19:18:45 +00:00
|
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
2012-10-17 09:51:01 +00:00
|
|
|
* 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
|
2013-03-08 19:18:45 +00:00
|
|
|
* License along with FFmpeg; if not, write to the Free Software
|
2012-10-17 09:51:01 +00:00
|
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
*/
|
|
|
|
|
2013-03-07 07:16:07 +00:00
|
|
|
#include "channel_layout.h"
|
2013-03-16 10:33:25 +00:00
|
|
|
#include "avassert.h"
|
2012-10-17 09:51:01 +00:00
|
|
|
#include "buffer.h"
|
|
|
|
#include "common.h"
|
2012-12-25 21:11:36 +00:00
|
|
|
#include "dict.h"
|
2012-10-17 09:51:01 +00:00
|
|
|
#include "frame.h"
|
|
|
|
#include "imgutils.h"
|
|
|
|
#include "mem.h"
|
|
|
|
#include "samplefmt.h"
|
|
|
|
|
2017-10-23 14:10:48 +00:00
|
|
|
#if FF_API_FRAME_GET_SET
|
2013-03-08 19:18:45 +00:00
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, best_effort_timestamp)
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_duration)
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, pkt_pos)
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int64_t, channel_layout)
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int, channels)
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int, sample_rate)
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, AVDictionary *, metadata)
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int, decode_error_flags)
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, int, pkt_size)
|
2013-07-14 17:13:46 +00:00
|
|
|
MAKE_ACCESSORS(AVFrame, frame, enum AVColorSpace, colorspace)
|
|
|
|
MAKE_ACCESSORS(AVFrame, frame, enum AVColorRange, color_range)
|
2017-10-23 14:10:48 +00:00
|
|
|
#endif
|
2013-03-08 19:18:45 +00:00
|
|
|
|
2013-03-16 10:33:25 +00:00
|
|
|
#define CHECK_CHANNELS_CONSISTENCY(frame) \
|
|
|
|
av_assert2(!(frame)->channel_layout || \
|
|
|
|
(frame)->channels == \
|
|
|
|
av_get_channel_layout_nb_channels((frame)->channel_layout))
|
|
|
|
|
2015-09-05 15:35:31 +00:00
|
|
|
#if FF_API_FRAME_QP
|
2013-03-14 01:12:14 +00:00
|
|
|
int av_frame_set_qp_table(AVFrame *f, AVBufferRef *buf, int stride, int qp_type)
|
|
|
|
{
|
|
|
|
av_buffer_unref(&f->qp_table_buf);
|
|
|
|
|
|
|
|
f->qp_table_buf = buf;
|
|
|
|
|
2015-09-05 15:35:31 +00:00
|
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
2013-03-14 01:12:14 +00:00
|
|
|
f->qscale_table = buf->data;
|
|
|
|
f->qstride = stride;
|
|
|
|
f->qscale_type = qp_type;
|
2015-09-05 15:35:31 +00:00
|
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
2013-03-14 01:12:14 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int8_t *av_frame_get_qp_table(AVFrame *f, int *stride, int *type)
|
|
|
|
{
|
2015-09-05 15:35:31 +00:00
|
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
2013-03-14 01:12:14 +00:00
|
|
|
*stride = f->qstride;
|
|
|
|
*type = f->qscale_type;
|
2015-09-05 15:35:31 +00:00
|
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
2013-03-14 01:12:14 +00:00
|
|
|
|
|
|
|
if (!f->qp_table_buf)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
return f->qp_table_buf->data;
|
|
|
|
}
|
2015-09-05 15:35:31 +00:00
|
|
|
#endif
|
2013-03-14 01:12:14 +00:00
|
|
|
|
2013-08-31 15:10:10 +00:00
|
|
|
const char *av_get_colorspace_name(enum AVColorSpace val)
|
|
|
|
{
|
2014-08-28 22:32:32 +00:00
|
|
|
static const char * const name[] = {
|
2013-08-31 15:10:10 +00:00
|
|
|
[AVCOL_SPC_RGB] = "GBR",
|
|
|
|
[AVCOL_SPC_BT709] = "bt709",
|
|
|
|
[AVCOL_SPC_FCC] = "fcc",
|
|
|
|
[AVCOL_SPC_BT470BG] = "bt470bg",
|
|
|
|
[AVCOL_SPC_SMPTE170M] = "smpte170m",
|
|
|
|
[AVCOL_SPC_SMPTE240M] = "smpte240m",
|
|
|
|
[AVCOL_SPC_YCOCG] = "YCgCo",
|
|
|
|
};
|
2013-09-19 20:46:52 +00:00
|
|
|
if ((unsigned)val >= FF_ARRAY_ELEMS(name))
|
2013-08-31 15:10:10 +00:00
|
|
|
return NULL;
|
|
|
|
return name[val];
|
|
|
|
}
|
|
|
|
|
2012-10-17 09:51:01 +00:00
|
|
|
static void get_frame_defaults(AVFrame *frame)
|
|
|
|
{
|
|
|
|
if (frame->extended_data != frame->data)
|
|
|
|
av_freep(&frame->extended_data);
|
|
|
|
|
|
|
|
memset(frame, 0, sizeof(*frame));
|
|
|
|
|
2013-03-09 23:34:16 +00:00
|
|
|
frame->pts =
|
2016-10-07 10:55:50 +00:00
|
|
|
frame->pkt_dts = AV_NOPTS_VALUE;
|
|
|
|
#if FF_API_PKT_PTS
|
|
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
2013-03-09 23:34:16 +00:00
|
|
|
frame->pkt_pts = AV_NOPTS_VALUE;
|
2016-10-07 10:55:50 +00:00
|
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
|
|
#endif
|
2016-07-25 18:04:42 +00:00
|
|
|
frame->best_effort_timestamp = AV_NOPTS_VALUE;
|
|
|
|
frame->pkt_duration = 0;
|
|
|
|
frame->pkt_pos = -1;
|
|
|
|
frame->pkt_size = -1;
|
2012-10-17 09:51:01 +00:00
|
|
|
frame->key_frame = 1;
|
|
|
|
frame->sample_aspect_ratio = (AVRational){ 0, 1 };
|
|
|
|
frame->format = -1; /* unknown */
|
|
|
|
frame->extended_data = frame->data;
|
2014-05-30 20:14:21 +00:00
|
|
|
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;
|
2016-09-15 20:36:14 +00:00
|
|
|
frame->flags = 0;
|
2012-10-17 09:51:01 +00:00
|
|
|
}
|
|
|
|
|
2014-06-18 06:11:05 +00:00
|
|
|
static void free_side_data(AVFrameSideData **ptr_sd)
|
|
|
|
{
|
|
|
|
AVFrameSideData *sd = *ptr_sd;
|
|
|
|
|
2015-03-23 15:11:19 +00:00
|
|
|
av_buffer_unref(&sd->buf);
|
2014-06-18 06:11:05 +00:00
|
|
|
av_dict_free(&sd->metadata);
|
|
|
|
av_freep(ptr_sd);
|
|
|
|
}
|
|
|
|
|
2014-12-15 19:38:00 +00:00
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2012-10-17 09:51:01 +00:00
|
|
|
AVFrame *av_frame_alloc(void)
|
|
|
|
{
|
|
|
|
AVFrame *frame = av_mallocz(sizeof(*frame));
|
|
|
|
|
|
|
|
if (!frame)
|
|
|
|
return NULL;
|
|
|
|
|
2013-03-09 23:34:16 +00:00
|
|
|
frame->extended_data = NULL;
|
2012-10-17 09:51:01 +00:00
|
|
|
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;
|
|
|
|
|
|
|
|
if (!desc)
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
|
|
|
|
if ((ret = av_image_check_size(frame->width, frame->height, 0, NULL)) < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
if (!frame->linesize[0]) {
|
2017-02-08 08:46:04 +00:00
|
|
|
if (align <= 0)
|
2017-09-28 02:29:20 +00:00
|
|
|
align = 32; /* STRIDE_ALIGN. Should be av_cpu_max_align() */
|
|
|
|
|
2013-06-18 14:39:23 +00:00
|
|
|
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;
|
|
|
|
}
|
2012-10-17 09:51:01 +00:00
|
|
|
|
|
|
|
for (i = 0; i < 4 && frame->linesize[i]; i++)
|
|
|
|
frame->linesize[i] = FFALIGN(frame->linesize[i], align);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < 4 && frame->linesize[i]; i++) {
|
2013-03-12 10:33:43 +00:00
|
|
|
int h = FFALIGN(frame->height, 32);
|
2012-10-17 09:51:01 +00:00
|
|
|
if (i == 1 || i == 2)
|
2016-01-27 15:19:38 +00:00
|
|
|
h = AV_CEIL_RSHIFT(h, desc->log2_chroma_h);
|
2012-10-17 09:51:01 +00:00
|
|
|
|
2013-12-28 18:05:39 +00:00
|
|
|
frame->buf[i] = av_buffer_alloc(frame->linesize[i] * h + 16 + 16/*STRIDE_ALIGN*/ - 1);
|
2012-10-17 09:51:01 +00:00
|
|
|
if (!frame->buf[i])
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
frame->data[i] = frame->buf[i]->data;
|
|
|
|
}
|
2013-05-12 13:41:49 +00:00
|
|
|
if (desc->flags & AV_PIX_FMT_FLAG_PAL || desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL) {
|
2012-10-17 09:51:01 +00:00
|
|
|
av_buffer_unref(&frame->buf[1]);
|
2015-12-08 16:50:40 +00:00
|
|
|
frame->buf[1] = av_buffer_alloc(AVPALETTE_SIZE);
|
2012-10-17 09:51:01 +00:00
|
|
|
if (!frame->buf[1])
|
|
|
|
goto fail;
|
|
|
|
frame->data[1] = frame->buf[1]->data;
|
|
|
|
}
|
|
|
|
|
|
|
|
frame->extended_data = frame->data;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
|
|
av_frame_unref(frame);
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int get_audio_buffer(AVFrame *frame, int align)
|
|
|
|
{
|
2013-11-27 09:52:26 +00:00
|
|
|
int channels;
|
2012-10-17 09:51:01 +00:00
|
|
|
int planar = av_sample_fmt_is_planar(frame->format);
|
2013-11-27 09:52:26 +00:00
|
|
|
int planes;
|
2012-10-17 09:51:01 +00:00
|
|
|
int ret, i;
|
|
|
|
|
2013-11-27 09:52:26 +00:00
|
|
|
if (!frame->channels)
|
|
|
|
frame->channels = av_get_channel_layout_nb_channels(frame->channel_layout);
|
|
|
|
|
|
|
|
channels = frame->channels;
|
|
|
|
planes = planar ? channels : 1;
|
|
|
|
|
2013-03-16 10:33:25 +00:00
|
|
|
CHECK_CHANNELS_CONSISTENCY(frame);
|
2012-10-17 09:51:01 +00:00
|
|
|
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) {
|
2014-04-15 11:47:27 +00:00
|
|
|
frame->extended_data = av_mallocz_array(planes,
|
2012-10-17 09:51:01 +00:00
|
|
|
sizeof(*frame->extended_data));
|
2014-04-15 11:47:27 +00:00
|
|
|
frame->extended_buf = av_mallocz_array((planes - AV_NUM_DATA_POINTERS),
|
2012-10-17 09:51:01 +00:00
|
|
|
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);
|
|
|
|
|
|
|
|
if (frame->width > 0 && frame->height > 0)
|
|
|
|
return get_video_buffer(frame, align);
|
2013-07-13 18:58:18 +00:00
|
|
|
else if (frame->nb_samples > 0 && (frame->channel_layout || frame->channels > 0))
|
2012-10-17 09:51:01 +00:00
|
|
|
return get_audio_buffer(frame, align);
|
|
|
|
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
}
|
|
|
|
|
2015-03-23 15:11:19 +00:00
|
|
|
static int frame_copy_props(AVFrame *dst, const AVFrame *src, int force_copy)
|
2015-03-23 15:11:18 +00:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
dst->key_frame = src->key_frame;
|
|
|
|
dst->pict_type = src->pict_type;
|
|
|
|
dst->sample_aspect_ratio = src->sample_aspect_ratio;
|
2017-05-08 16:08:02 +00:00
|
|
|
dst->crop_top = src->crop_top;
|
|
|
|
dst->crop_bottom = src->crop_bottom;
|
|
|
|
dst->crop_left = src->crop_left;
|
|
|
|
dst->crop_right = src->crop_right;
|
2015-03-23 15:11:18 +00:00
|
|
|
dst->pts = src->pts;
|
|
|
|
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;
|
2016-10-07 10:55:50 +00:00
|
|
|
#if FF_API_PKT_PTS
|
|
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
2015-03-23 15:11:18 +00:00
|
|
|
dst->pkt_pts = src->pkt_pts;
|
2016-10-07 10:55:50 +00:00
|
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
|
|
#endif
|
2015-03-23 15:11:18 +00:00
|
|
|
dst->pkt_dts = src->pkt_dts;
|
|
|
|
dst->pkt_pos = src->pkt_pos;
|
|
|
|
dst->pkt_size = src->pkt_size;
|
|
|
|
dst->pkt_duration = src->pkt_duration;
|
|
|
|
dst->reordered_opaque = src->reordered_opaque;
|
|
|
|
dst->quality = src->quality;
|
|
|
|
dst->best_effort_timestamp = src->best_effort_timestamp;
|
|
|
|
dst->coded_picture_number = src->coded_picture_number;
|
|
|
|
dst->display_picture_number = src->display_picture_number;
|
|
|
|
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);
|
|
|
|
|
2015-10-03 07:52:39 +00:00
|
|
|
#if FF_API_ERROR_FRAME
|
|
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
2015-03-23 15:11:18 +00:00
|
|
|
memcpy(dst->error, src->error, sizeof(dst->error));
|
2015-10-03 07:52:39 +00:00
|
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
|
|
#endif
|
2015-03-23 15:11:18 +00:00
|
|
|
|
|
|
|
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;
|
2015-03-23 15:11:19 +00:00
|
|
|
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 {
|
2017-10-17 22:57:28 +00:00
|
|
|
AVBufferRef *ref = av_buffer_ref(sd_src->buf);
|
|
|
|
sd_dst = av_frame_new_side_data_from_buf(dst, sd_src->type, ref);
|
2015-03-23 15:11:19 +00:00
|
|
|
if (!sd_dst) {
|
2017-10-17 22:57:28 +00:00
|
|
|
av_buffer_unref(&ref);
|
2015-03-23 15:11:19 +00:00
|
|
|
wipe_side_data(dst);
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
2015-03-23 15:11:18 +00:00
|
|
|
}
|
|
|
|
av_dict_copy(&sd_dst->metadata, sd_src->metadata, 0);
|
|
|
|
}
|
|
|
|
|
2015-09-05 15:35:31 +00:00
|
|
|
#if FF_API_FRAME_QP
|
|
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
2015-03-23 15:11:18 +00:00
|
|
|
dst->qscale_table = NULL;
|
|
|
|
dst->qstride = 0;
|
|
|
|
dst->qscale_type = 0;
|
2016-02-13 19:57:26 +00:00
|
|
|
av_buffer_unref(&dst->qp_table_buf);
|
2015-03-23 15:11:18 +00:00
|
|
|
if (src->qp_table_buf) {
|
|
|
|
dst->qp_table_buf = av_buffer_ref(src->qp_table_buf);
|
|
|
|
if (dst->qp_table_buf) {
|
|
|
|
dst->qscale_table = dst->qp_table_buf->data;
|
|
|
|
dst->qstride = src->qstride;
|
|
|
|
dst->qscale_type = src->qscale_type;
|
|
|
|
}
|
|
|
|
}
|
2015-09-05 15:35:31 +00:00
|
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
|
|
#endif
|
2015-03-23 15:11:18 +00:00
|
|
|
|
2017-02-02 10:27:54 +00:00
|
|
|
av_buffer_unref(&dst->opaque_ref);
|
2017-11-08 22:55:00 +00:00
|
|
|
av_buffer_unref(&dst->private_ref);
|
2017-02-02 10:27:54 +00:00
|
|
|
if (src->opaque_ref) {
|
|
|
|
dst->opaque_ref = av_buffer_ref(src->opaque_ref);
|
|
|
|
if (!dst->opaque_ref)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
2017-11-08 22:55:00 +00:00
|
|
|
if (src->private_ref) {
|
|
|
|
dst->private_ref = av_buffer_ref(src->private_ref);
|
|
|
|
if (!dst->private_ref)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
}
|
2015-03-23 15:11:18 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-10-26 14:43:07 +00:00
|
|
|
int av_frame_ref(AVFrame *dst, const AVFrame *src)
|
2012-10-17 09:51:01 +00:00
|
|
|
{
|
|
|
|
int i, ret = 0;
|
|
|
|
|
2016-03-08 17:44:34 +00:00
|
|
|
av_assert1(dst->width == 0 && dst->height == 0);
|
|
|
|
av_assert1(dst->channels == 0);
|
|
|
|
|
2012-10-17 09:51:01 +00:00
|
|
|
dst->format = src->format;
|
|
|
|
dst->width = src->width;
|
|
|
|
dst->height = src->height;
|
2013-03-09 16:17:59 +00:00
|
|
|
dst->channels = src->channels;
|
2012-10-17 09:51:01 +00:00
|
|
|
dst->channel_layout = src->channel_layout;
|
|
|
|
dst->nb_samples = src->nb_samples;
|
|
|
|
|
2015-03-23 15:11:19 +00:00
|
|
|
ret = frame_copy_props(dst, src, 0);
|
2012-10-17 09:51:01 +00:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
/* duplicate the frame data if it's not refcounted */
|
|
|
|
if (!src->buf[0]) {
|
|
|
|
ret = av_frame_get_buffer(dst, 32);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2014-02-11 13:15:20 +00:00
|
|
|
ret = av_frame_copy(dst, src);
|
|
|
|
if (ret < 0)
|
|
|
|
av_frame_unref(dst);
|
|
|
|
|
|
|
|
return ret;
|
2012-10-17 09:51:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* ref the buffers */
|
2013-05-20 15:28:06 +00:00
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(src->buf); i++) {
|
|
|
|
if (!src->buf[i])
|
|
|
|
continue;
|
2012-10-17 09:51:01 +00:00
|
|
|
dst->buf[i] = av_buffer_ref(src->buf[i]);
|
|
|
|
if (!dst->buf[i]) {
|
|
|
|
ret = AVERROR(ENOMEM);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (src->extended_buf) {
|
2014-04-15 11:47:27 +00:00
|
|
|
dst->extended_buf = av_mallocz_array(sizeof(*dst->extended_buf),
|
2012-10-17 09:51:01 +00:00
|
|
|
src->nb_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;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-11-20 18:47:29 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-10-17 09:51:01 +00:00
|
|
|
/* duplicate extended data */
|
|
|
|
if (src->extended_data != src->data) {
|
2013-03-16 10:33:25 +00:00
|
|
|
int ch = src->channels;
|
2012-10-17 09:51:01 +00:00
|
|
|
|
|
|
|
if (!ch) {
|
|
|
|
ret = AVERROR(EINVAL);
|
|
|
|
goto fail;
|
|
|
|
}
|
2013-03-16 10:33:25 +00:00
|
|
|
CHECK_CHANNELS_CONSISTENCY(src);
|
2012-10-17 09:51:01 +00:00
|
|
|
|
2014-04-15 11:47:27 +00:00
|
|
|
dst->extended_data = av_malloc_array(sizeof(*dst->extended_data), ch);
|
2012-10-17 09:51:01 +00:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2013-10-26 14:43:07 +00:00
|
|
|
AVFrame *av_frame_clone(const AVFrame *src)
|
2012-10-17 09:51:01 +00:00
|
|
|
{
|
|
|
|
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;
|
|
|
|
|
2015-07-13 17:25:03 +00:00
|
|
|
if (!frame)
|
|
|
|
return;
|
|
|
|
|
2014-12-15 19:38:00 +00:00
|
|
|
wipe_side_data(frame);
|
2012-12-25 21:11:36 +00:00
|
|
|
|
2012-10-17 09:51:01 +00:00
|
|
|
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);
|
2013-03-13 16:51:07 +00:00
|
|
|
av_dict_free(&frame->metadata);
|
2015-09-05 15:35:31 +00:00
|
|
|
#if FF_API_FRAME_QP
|
2013-03-14 01:12:14 +00:00
|
|
|
av_buffer_unref(&frame->qp_table_buf);
|
2015-09-05 15:35:31 +00:00
|
|
|
#endif
|
2013-03-14 01:12:14 +00:00
|
|
|
|
2015-11-20 18:47:29 +00:00
|
|
|
av_buffer_unref(&frame->hw_frames_ctx);
|
|
|
|
|
2017-02-02 10:27:54 +00:00
|
|
|
av_buffer_unref(&frame->opaque_ref);
|
2017-11-08 22:55:00 +00:00
|
|
|
av_buffer_unref(&frame->private_ref);
|
2017-02-02 10:27:54 +00:00
|
|
|
|
2012-10-17 09:51:01 +00:00
|
|
|
get_frame_defaults(frame);
|
|
|
|
}
|
|
|
|
|
|
|
|
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
|
|
|
|
{
|
2016-03-08 17:44:34 +00:00
|
|
|
av_assert1(dst->width == 0 && dst->height == 0);
|
|
|
|
av_assert1(dst->channels == 0);
|
|
|
|
|
2012-10-17 09:51:01 +00:00
|
|
|
*dst = *src;
|
|
|
|
if (src->extended_data == src->data)
|
|
|
|
dst->extended_data = dst->data;
|
|
|
|
memset(src, 0, sizeof(*src));
|
|
|
|
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;
|
|
|
|
|
2013-05-20 15:28:06 +00:00
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(frame->buf); i++)
|
|
|
|
if (frame->buf[i])
|
|
|
|
ret &= !!av_buffer_is_writable(frame->buf[i]);
|
2012-10-17 09:51:01 +00:00
|
|
|
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 (!frame->buf[0])
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
|
|
|
|
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;
|
2013-03-13 12:44:55 +00:00
|
|
|
tmp.channels = frame->channels;
|
2012-10-17 09:51:01 +00:00
|
|
|
tmp.channel_layout = frame->channel_layout;
|
|
|
|
tmp.nb_samples = frame->nb_samples;
|
|
|
|
ret = av_frame_get_buffer(&tmp, 32);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2014-02-11 13:15:20 +00:00
|
|
|
ret = av_frame_copy(&tmp, frame);
|
|
|
|
if (ret < 0) {
|
|
|
|
av_frame_unref(&tmp);
|
|
|
|
return ret;
|
2012-10-17 09:51:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2015-03-23 15:11:19 +00:00
|
|
|
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
|
|
|
|
{
|
|
|
|
return frame_copy_props(dst, src, 1);
|
|
|
|
}
|
|
|
|
|
2012-10-17 09:51:01 +00:00
|
|
|
AVBufferRef *av_frame_get_plane_buffer(AVFrame *frame, int plane)
|
|
|
|
{
|
|
|
|
uint8_t *data;
|
|
|
|
int planes, i;
|
|
|
|
|
|
|
|
if (frame->nb_samples) {
|
2013-03-16 10:33:25 +00:00
|
|
|
int channels = frame->channels;
|
2012-10-17 09:51:01 +00:00
|
|
|
if (!channels)
|
|
|
|
return NULL;
|
2013-03-16 10:33:25 +00:00
|
|
|
CHECK_CHANNELS_CONSISTENCY(frame);
|
2012-10-17 09:51:01 +00:00
|
|
|
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;
|
|
|
|
}
|
2012-12-25 21:11:36 +00:00
|
|
|
|
2017-10-17 22:57:28 +00:00
|
|
|
AVFrameSideData *av_frame_new_side_data_from_buf(AVFrame *frame,
|
|
|
|
enum AVFrameSideDataType type,
|
|
|
|
AVBufferRef *buf)
|
2012-12-25 21:11:36 +00:00
|
|
|
{
|
|
|
|
AVFrameSideData *ret, **tmp;
|
|
|
|
|
2017-02-23 14:19:31 +00:00
|
|
|
if (!buf)
|
2012-12-25 21:11:36 +00:00
|
|
|
return NULL;
|
|
|
|
|
2017-02-23 14:19:31 +00:00
|
|
|
if (frame->nb_side_data > INT_MAX / sizeof(*frame->side_data) - 1)
|
2017-10-17 22:57:28 +00:00
|
|
|
return NULL;
|
2017-02-23 14:19:31 +00:00
|
|
|
|
2012-12-25 21:11:36 +00:00
|
|
|
tmp = av_realloc(frame->side_data,
|
|
|
|
(frame->nb_side_data + 1) * sizeof(*frame->side_data));
|
|
|
|
if (!tmp)
|
2017-10-17 22:57:28 +00:00
|
|
|
return NULL;
|
2012-12-25 21:11:36 +00:00
|
|
|
frame->side_data = tmp;
|
|
|
|
|
|
|
|
ret = av_mallocz(sizeof(*ret));
|
|
|
|
if (!ret)
|
2017-10-17 22:57:28 +00:00
|
|
|
return NULL;
|
2012-12-25 21:11:36 +00:00
|
|
|
|
2017-02-23 14:19:31 +00:00
|
|
|
ret->buf = buf;
|
|
|
|
ret->data = ret->buf->data;
|
|
|
|
ret->size = buf->size;
|
2012-12-25 21:11:36 +00:00
|
|
|
ret->type = type;
|
|
|
|
|
|
|
|
frame->side_data[frame->nb_side_data++] = ret;
|
|
|
|
|
|
|
|
return ret;
|
2017-02-23 14:19:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
|
|
|
|
enum AVFrameSideDataType type,
|
|
|
|
int size)
|
|
|
|
{
|
2017-10-17 22:57:28 +00:00
|
|
|
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;
|
2012-12-25 21:11:36 +00:00
|
|
|
}
|
|
|
|
|
2013-07-30 15:39:07 +00:00
|
|
|
AVFrameSideData *av_frame_get_side_data(const AVFrame *frame,
|
2012-12-25 21:11:36 +00:00
|
|
|
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;
|
|
|
|
}
|
2014-02-11 13:15:20 +00:00
|
|
|
|
|
|
|
static int frame_copy_video(AVFrame *dst, const AVFrame *src)
|
|
|
|
{
|
|
|
|
const uint8_t *src_data[4];
|
|
|
|
int i, planes;
|
|
|
|
|
2014-05-31 15:06:26 +00:00
|
|
|
if (dst->width < src->width ||
|
|
|
|
dst->height < src->height)
|
2014-02-11 13:15:20 +00:00
|
|
|
return AVERROR(EINVAL);
|
|
|
|
|
|
|
|
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,
|
2014-05-31 15:06:26 +00:00
|
|
|
dst->format, src->width, src->height);
|
2014-02-11 13:15:20 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int frame_copy_audio(AVFrame *dst, const AVFrame *src)
|
|
|
|
{
|
|
|
|
int planar = av_sample_fmt_is_planar(dst->format);
|
2014-02-24 08:37:14 +00:00
|
|
|
int channels = dst->channels;
|
2014-02-11 13:15:20 +00:00
|
|
|
int planes = planar ? channels : 1;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (dst->nb_samples != src->nb_samples ||
|
2014-02-24 08:52:13 +00:00
|
|
|
dst->channels != src->channels ||
|
2014-02-11 13:15:20 +00:00
|
|
|
dst->channel_layout != src->channel_layout)
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
|
2014-02-24 08:37:14 +00:00
|
|
|
CHECK_CHANNELS_CONSISTENCY(src);
|
|
|
|
|
2014-02-11 13:15:20 +00:00
|
|
|
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);
|
|
|
|
|
|
|
|
if (dst->width > 0 && dst->height > 0)
|
|
|
|
return frame_copy_video(dst, src);
|
2017-01-30 00:33:18 +00:00
|
|
|
else if (dst->nb_samples > 0 && dst->channels > 0)
|
2014-02-11 13:15:20 +00:00
|
|
|
return frame_copy_audio(dst, src);
|
|
|
|
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
}
|
2014-02-19 19:11:21 +00:00
|
|
|
|
|
|
|
void av_frame_remove_side_data(AVFrame *frame, enum AVFrameSideDataType type)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < frame->nb_side_data; i++) {
|
|
|
|
AVFrameSideData *sd = frame->side_data[i];
|
|
|
|
if (sd->type == type) {
|
2014-06-18 06:11:05 +00:00
|
|
|
free_side_data(&frame->side_data[i]);
|
2014-02-19 19:11:21 +00:00
|
|
|
frame->side_data[i] = frame->side_data[frame->nb_side_data - 1];
|
|
|
|
frame->nb_side_data--;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2014-07-29 23:09:06 +00:00
|
|
|
|
|
|
|
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 "Stereoscopic 3d metadata";
|
|
|
|
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";
|
2016-01-21 18:34:29 +00:00
|
|
|
case AV_FRAME_DATA_AFD: return "Active format description";
|
2014-07-16 14:42:42 +00:00
|
|
|
case AV_FRAME_DATA_MOTION_VECTORS: return "Motion vectors";
|
2016-01-21 18:34:29 +00:00
|
|
|
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";
|
2017-04-03 07:29:45 +00:00
|
|
|
case AV_FRAME_DATA_CONTENT_LIGHT_LEVEL: return "Content light level metadata";
|
2016-01-31 13:10:38 +00:00
|
|
|
case AV_FRAME_DATA_GOP_TIMECODE: return "GOP timecode";
|
2017-07-26 03:38:22 +00:00
|
|
|
case AV_FRAME_DATA_ICC_PROFILE: return "ICC profile";
|
2014-07-29 23:09:06 +00:00
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
2017-07-22 21:05:13 +00:00
|
|
|
|
|
|
|
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 | AV_PIX_FMT_FLAG_PSEUDOPAL) && 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;
|
|
|
|
}
|