smacker: return meaningful error codes on failure
[libav.git] / libavformat / framecrcenc.c
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1/*
2 * frame CRC encoder (for codec/format testing)
406792e7 3 * Copyright (c) 2002 Fabrice Bellard
6b6adf2b 4 *
2912e87a 5 * This file is part of Libav.
6b6adf2b 6 *
2912e87a 7 * Libav is free software; you can redistribute it and/or
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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 *
2912e87a 12 * Libav is distributed in the hope that it will be useful,
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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
2912e87a 18 * License along with Libav; if not, write to the Free Software
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19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
245976da 21
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22#include <inttypes.h>
23
245976da 24#include "libavutil/adler32.h"
6b6adf2b 25#include "avformat.h"
d2afbd9a 26#include "internal.h"
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27
28static int framecrc_write_packet(struct AVFormatContext *s, AVPacket *pkt)
29{
30 uint32_t crc = av_adler32_update(0, pkt->data, pkt->size);
31 char buf[256];
32
948f3c19 33 snprintf(buf, sizeof(buf), "%d, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08"PRIx32"\n",
d2afbd9a 34 pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size, crc);
77eb5504 35 avio_write(s->pb, buf, strlen(buf));
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36 return 0;
37}
38
c6610a21 39AVOutputFormat ff_framecrc_muxer = {
dfc2c4d9 40 .name = "framecrc",
6774247a 41 .long_name = NULL_IF_CONFIG_SMALL("framecrc testing"),
dfc2c4d9 42 .extensions = "",
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43 .audio_codec = AV_CODEC_ID_PCM_S16LE,
44 .video_codec = AV_CODEC_ID_RAWVIDEO,
d2afbd9a 45 .write_header = ff_framehash_write_header,
dfc2c4d9 46 .write_packet = framecrc_write_packet,
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47 .flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT |
48 AVFMT_TS_NEGATIVE,
6b6adf2b 49};