| 635 | } |
| 636 | |
| 637 | hb_buffer_t * hb_read_preview(hb_handle_t * h, hb_title_t *title, int preview, int format) |
| 638 | { |
| 639 | FILE * file = NULL; |
| 640 | char * filename = NULL; |
| 641 | char reason[80]; |
| 642 | char format_string[HB_FORMAT_CHARS]; |
| 643 | |
| 644 | hb_buffer_t * buf; |
| 645 | buf = hb_frame_buffer_init(AV_PIX_FMT_YUV420P, |
| 646 | title->geometry.width, title->geometry.height); |
| 647 | buf->f.color_prim = title->color_prim; |
| 648 | buf->f.color_transfer = title->color_transfer; |
| 649 | buf->f.color_matrix = title->color_matrix; |
| 650 | buf->f.color_range = AVCOL_RANGE_MPEG; |
| 651 | buf->f.chroma_location = title->chroma_location; |
| 652 | |
| 653 | if (!buf) |
| 654 | { |
| 655 | hb_error("hb_read_preview: hb_frame_buffer_init failed"); |
| 656 | goto done; |
| 657 | } |
| 658 | |
| 659 | switch (format) |
| 660 | { |
| 661 | case HB_PREVIEW_FORMAT_YUV: |
| 662 | strncpy(format_string, "yuv", HB_FORMAT_CHARS); |
| 663 | break; |
| 664 | case HB_PREVIEW_FORMAT_JPG: |
| 665 | strncpy(format_string, "jpg", HB_FORMAT_CHARS); |
| 666 | break; |
| 667 | default: |
| 668 | hb_error("hb_read_preview: Unsupported preview format %d", format); |
| 669 | return buf; |
| 670 | } |
| 671 | |
| 672 | filename = hb_get_temporary_filename("%d_%d_%d.%s", hb_get_instance_id(h), |
| 673 | title->index, preview, format_string); |
| 674 | |
| 675 | file = hb_fopen(filename, "rb"); |
| 676 | if (file == NULL) |
| 677 | { |
| 678 | if (strerror_r(errno, reason, 79) != 0) |
| 679 | { |
| 680 | strcpy(reason, "unknown -- strerror_r() failed"); |
| 681 | } |
| 682 | hb_error("hb_read_preview: Failed to open %s (reason: %s)", |
| 683 | filename, reason); |
| 684 | free(filename); |
| 685 | return NULL; |
| 686 | } |
| 687 | |
| 688 | if (format == HB_PREVIEW_FORMAT_YUV) |
| 689 | { |
| 690 | int pp, hh; |
| 691 | for (pp = 0; pp < HB_PLANES_MAX; pp++) |
| 692 | { |
| 693 | uint8_t * data = buf->plane[pp].data; |
| 694 | const int stride = buf->plane[pp].stride; |
no test coverage detected