| @@ -98,6 +98,23 @@ static void remove_side_data(AVFrameSideData ***sd, int *nb_side_data, · 97 unmodified lines |
| 98 | 98 | } |
| 99 | 99 | } |
| 100 | 100 | |
| 101 | +static void remove_side_data_by_entry(AVFrameSideData ***sd, int *nb_sd, |
| 102 | + const AVFrameSideData *target) |
| 103 | +{ |
| 104 | + for (int i = *nb_sd - 1; i >= 0; i--) { |
| 105 | + AVFrameSideData *entry = ((*sd)[i]); |
| 106 | + if (entry != target) |
| 107 | + continue; |
| 108 | + |
| 109 | + free_side_data(&entry); |
| 110 | + |
| 111 | + ((*sd)[i]) = ((*sd)[*nb_sd - 1]); |
| 112 | + (*nb_sd)--; |
| 113 | + |
| 114 | + return; |
| 115 | + } |
| 116 | +} |
| 117 | + |
| 101 | 118 | AVFrame *av_frame_alloc(void) |
| 102 | 119 | { |
| 103 | 120 | AVFrame *frame = av_malloc(sizeof(*frame)); |
| @@ -764,6 +781,38 @@ AVFrameSideData *av_frame_side_data_new(AVFrameSideData ***sd, int *nb_sd, · 660 unmodified lines |
| 764 | 781 | return ret; |
| 765 | 782 | } |
| 766 | 783 | |
| 784 | +int av_frame_side_data_clone(AVFrameSideData ***sd, int *nb_sd, |
| 785 | + const AVFrameSideData *src, unsigned int flags) |
| 786 | +{ |
| 787 | + AVBufferRef *buf = NULL; |
| 788 | + AVFrameSideData *sd_dst = NULL; |
| 789 | + int ret = AVERROR_BUG; |
| 790 | + |
| 791 | + if (!sd || !src || !nb_sd || (*nb_sd && !*sd)) |
| 792 | + return AVERROR(EINVAL); |
| 793 | + |
| 794 | + buf = av_buffer_ref(src->buf); |
| 795 | + if (!buf) |
| 796 | + return AVERROR(ENOMEM); |
| 797 | + |
| 798 | + if (flags & AV_FRAME_SIDE_DATA_FLAG_UNIQUE) |
| 799 | + remove_side_data(sd, nb_sd, src->type); |
| 800 | + |
| 801 | + sd_dst = add_side_data_from_buf(sd, nb_sd, src->type, buf); |
| 802 | + if (!sd_dst) { |
| 803 | + av_buffer_unref(&buf); |
| 804 | + return AVERROR(ENOMEM); |
| 805 | + } |
| 806 | + |
| 807 | + ret = av_dict_copy(&sd_dst->metadata, src->metadata, 0); |
| 808 | + if (ret < 0) { |
| 809 | + remove_side_data_by_entry(sd, nb_sd, sd_dst); |
| 810 | + return ret; |
| 811 | + } |
| 812 | + |
| 813 | + return 0; |
| 814 | +} |
| 815 | + |
| 767 | 816 | AVFrameSideData *av_frame_get_side_data(const AVFrame *frame, |
| 768 | 817 | enum AVFrameSideDataType type) |
| 769 | 818 | { |