Merge commit '1155fd02ae7bac215acab316e847c6bb25f74fc3'

* commit '1155fd02ae7bac215acab316e847c6bb25f74fc3':
  frame: add a convenience function for copying AVFrame data

Conflicts:
	doc/APIchanges
	libavutil/frame.c
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-02-24 09:37:14 +01:00
commit fff5262301
4 changed files with 84 additions and 19 deletions

View File

@ -15,6 +15,9 @@ libavutil: 2012-10-22
API changes, most recent first:
2014-xx-xx - xxxxxxx - lavu 53.05.0 - frame.h
Add av_frame_copy() for copying the frame data.
2014-02-xx - xxxxxxx - lswr 0.18.100 - swresample.h
Add swr_is_initialized() for checking whether a resample context is initialized.

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@ -271,16 +271,11 @@ int av_frame_ref(AVFrame *dst, const AVFrame *src)
if (ret < 0)
return ret;
if (src->nb_samples) {
int ch = src->channels;
CHECK_CHANNELS_CONSISTENCY(src);
av_samples_copy(dst->extended_data, src->extended_data, 0, 0,
dst->nb_samples, ch, dst->format);
} else {
av_image_copy(dst->data, dst->linesize, src->data, src->linesize,
dst->format, dst->width, dst->height);
}
return 0;
ret = av_frame_copy(dst, src);
if (ret < 0)
av_frame_unref(dst);
return ret;
}
/* ref the buffers */
@ -424,14 +419,10 @@ int av_frame_make_writable(AVFrame *frame)
if (ret < 0)
return ret;
if (tmp.nb_samples) {
int ch = tmp.channels;
CHECK_CHANNELS_CONSISTENCY(&tmp);
av_samples_copy(tmp.extended_data, frame->extended_data, 0, 0,
frame->nb_samples, ch, frame->format);
} else {
av_image_copy(tmp.data, tmp.linesize, frame->data, frame->linesize,
frame->format, frame->width, frame->height);
ret = av_frame_copy(&tmp, frame);
if (ret < 0) {
av_frame_unref(&tmp);
return ret;
}
ret = av_frame_copy_props(&tmp, frame);
@ -592,3 +583,61 @@ AVFrameSideData *av_frame_get_side_data(const AVFrame *frame,
}
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);
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, dst->width, dst->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->channels;
int planes = planar ? channels : 1;
int i;
if (dst->nb_samples != src->nb_samples ||
dst->channel_layout != src->channel_layout)
return AVERROR(EINVAL);
CHECK_CHANNELS_CONSISTENCY(src);
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);
else if (dst->nb_samples > 0 && dst->channel_layout)
return frame_copy_audio(dst, src);
return AVERROR(EINVAL);
}

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@ -673,6 +673,19 @@ int av_frame_is_writable(AVFrame *frame);
*/
int av_frame_make_writable(AVFrame *frame);
/**
* Copy the frame data from src to dst.
*
* This function does not allocate anything, dst must be already initialized and
* allocated with the same parameters as src.
*
* This function only copies the frame data (i.e. the contents of the data /
* extended data arrays), not any other properties.
*
* @return >= 0 on success, a negative AVERROR on error.
*/
int av_frame_copy(AVFrame *dst, const AVFrame *src);
/**
* Copy only "metadata" fields from src to dst.
*

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@ -56,7 +56,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 52
#define LIBAVUTIL_VERSION_MINOR 65
#define LIBAVUTIL_VERSION_MINOR 66
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \