LCOV - code coverage report
Current view: top level - libavcodec - imx_dump_header_bsf.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 21 0.0 %
Date: 2017-12-17 16:07:53 Functions: 0 1 0.0 %

          Line data    Source code
       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 "avcodec.h"
      29             : #include "bsf.h"
      30             : #include "bytestream.h"
      31             : 
      32             : 
      33           0 : 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           0 :     int ret = 0;
      40             :     uint8_t *out_buf;
      41             : 
      42           0 :     ret = ff_bsf_get_packet(ctx, &in);
      43           0 :     if (ret < 0)
      44           0 :         return ret;
      45             : 
      46           0 :     ret = av_new_packet(out, in->size + 20);
      47           0 :     if (ret < 0)
      48           0 :         goto fail;
      49             : 
      50           0 :     out_buf = out->data;
      51             : 
      52           0 :     bytestream_put_buffer(&out_buf, imx_header, 16);
      53           0 :     bytestream_put_byte(&out_buf, 0x83); /* KLV BER long form */
      54           0 :     bytestream_put_be24(&out_buf, in->size);
      55           0 :     bytestream_put_buffer(&out_buf, in->data, in->size);
      56             : 
      57           0 :     ret = av_packet_copy_props(out, in);
      58           0 :     if (ret < 0)
      59           0 :         goto fail;
      60             : 
      61           0 : fail:
      62           0 :     if (ret < 0)
      63           0 :         av_packet_unref(out);
      64           0 :     av_packet_free(&in);
      65           0 :     return ret;
      66             : }
      67             : 
      68             : static const enum AVCodecID codec_ids[] = {
      69             :     AV_CODEC_ID_MPEG2VIDEO, AV_CODEC_ID_NONE,
      70             : };
      71             : 
      72             : const AVBitStreamFilter ff_imx_dump_header_bsf = {
      73             :     .name      = "imxdump",
      74             :     .filter    = imx_dump_header,
      75             :     .codec_ids = codec_ids,
      76             : };

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