| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * imx dump header bitstream filter | ||
| 3 | * Copyright (c) 2007 Baptiste Coudurier | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | /** | ||
| 23 | * @file | ||
| 24 | * imx dump header bitstream filter | ||
| 25 | * modifies bitstream to fit in mov and be decoded by final cut pro decoder | ||
| 26 | */ | ||
| 27 | |||
| 28 | #include "bsf.h" | ||
| 29 | #include "bsf_internal.h" | ||
| 30 | #include "bytestream.h" | ||
| 31 | |||
| 32 | |||
| 33 | ✗ | static int imx_dump_header(AVBSFContext *ctx, AVPacket *out) | |
| 34 | { | ||
| 35 | /* MXF essence element key */ | ||
| 36 | static const uint8_t imx_header[16] = { 0x06,0x0e,0x2b,0x34,0x01,0x02,0x01,0x01,0x0d,0x01,0x03,0x01,0x05,0x01,0x01,0x00 }; | ||
| 37 | |||
| 38 | AVPacket *in; | ||
| 39 | ✗ | int ret = 0; | |
| 40 | uint8_t *out_buf; | ||
| 41 | |||
| 42 | ✗ | ret = ff_bsf_get_packet(ctx, &in); | |
| 43 | ✗ | if (ret < 0) | |
| 44 | ✗ | return ret; | |
| 45 | |||
| 46 | ✗ | ret = av_new_packet(out, in->size + 20); | |
| 47 | ✗ | if (ret < 0) | |
| 48 | ✗ | goto fail; | |
| 49 | |||
| 50 | ✗ | out_buf = out->data; | |
| 51 | |||
| 52 | ✗ | bytestream_put_buffer(&out_buf, imx_header, 16); | |
| 53 | ✗ | bytestream_put_byte(&out_buf, 0x83); /* KLV BER long form */ | |
| 54 | ✗ | bytestream_put_be24(&out_buf, in->size); | |
| 55 | ✗ | bytestream_put_buffer(&out_buf, in->data, in->size); | |
| 56 | |||
| 57 | ✗ | ret = av_packet_copy_props(out, in); | |
| 58 | ✗ | if (ret < 0) | |
| 59 | ✗ | goto fail; | |
| 60 | |||
| 61 | ✗ | fail: | |
| 62 | ✗ | if (ret < 0) | |
| 63 | ✗ | av_packet_unref(out); | |
| 64 | ✗ | av_packet_free(&in); | |
| 65 | ✗ | return ret; | |
| 66 | } | ||
| 67 | |||
| 68 | static const enum AVCodecID codec_ids[] = { | ||
| 69 | AV_CODEC_ID_MPEG2VIDEO, AV_CODEC_ID_NONE, | ||
| 70 | }; | ||
| 71 | |||
| 72 | const FFBitStreamFilter ff_imx_dump_header_bsf = { | ||
| 73 | .p.name = "imxdump", | ||
| 74 | .p.codec_ids = codec_ids, | ||
| 75 | .filter = imx_dump_header, | ||
| 76 | }; | ||
| 77 |