2 * imx dump header bitstream filter
3 * Copyright (c) 2007 Baptiste Coudurier
5 * This file is part of FFmpeg.
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.
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.
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
24 * imx dump header bitstream filter
25 * modifies bitstream to fit in mov and be decoded by final cut pro decoder
30 #include "bytestream.h"
33 static int imx_dump_header(AVBSFContext *ctx, AVPacket *out)
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 };
42 ret = ff_bsf_get_packet(ctx, &in);
46 ret = av_new_packet(out, in->size + 20);
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);
57 ret = av_packet_copy_props(out, in);
68 static const enum AVCodecID codec_ids[] = {
69 AV_CODEC_ID_MPEG2VIDEO, AV_CODEC_ID_NONE,
72 const AVBitStreamFilter ff_imx_dump_header_bsf = {
74 .filter = imx_dump_header,
75 .codec_ids = codec_ids,