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82 lines
2.8 KiB
82 lines
2.8 KiB
/* |
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* frame CRC encoder (for codec/format testing) |
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* Copyright (c) 2002 Fabrice Bellard |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include <inttypes.h> |
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#include "libavutil/adler32.h" |
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#include "libavutil/avstring.h" |
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#include "libavcodec/codec_id.h" |
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#include "libavcodec/codec_par.h" |
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#include "libavcodec/packet.h" |
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#include "avformat.h" |
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#include "internal.h" |
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#include "mux.h" |
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static int framecrc_write_header(struct AVFormatContext *s) |
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{ |
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int i; |
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for (i = 0; i < s->nb_streams; i++) { |
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AVStream *st = s->streams[i]; |
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AVCodecParameters *par = st->codecpar; |
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if (par->extradata) { |
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uint32_t crc = av_adler32_update(0, par->extradata, par->extradata_size); |
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avio_printf(s->pb, "#extradata %d: %8d, 0x%08"PRIx32"\n", |
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i, par->extradata_size, crc); |
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} |
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} |
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return ff_framehash_write_header(s); |
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} |
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static int framecrc_write_packet(struct AVFormatContext *s, AVPacket *pkt) |
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{ |
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uint32_t crc = av_adler32_update(0, pkt->data, pkt->size); |
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char buf[256]; |
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snprintf(buf, sizeof(buf), "%d, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08"PRIx32, |
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pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size, crc); |
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if (pkt->flags != AV_PKT_FLAG_KEY) |
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av_strlcatf(buf, sizeof(buf), ", F=0x%0X", pkt->flags); |
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if (pkt->side_data_elems) { |
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av_strlcatf(buf, sizeof(buf), ", S=%d", pkt->side_data_elems); |
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for (int i = 0; i < pkt->side_data_elems; i++) { |
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av_strlcatf(buf, sizeof(buf), ", %8"SIZE_SPECIFIER, |
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pkt->side_data[i].size); |
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} |
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} |
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av_strlcatf(buf, sizeof(buf), "\n"); |
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avio_write(s->pb, buf, strlen(buf)); |
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return 0; |
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} |
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const FFOutputFormat ff_framecrc_muxer = { |
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.p.name = "framecrc", |
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.p.long_name = NULL_IF_CONFIG_SMALL("framecrc testing"), |
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.p.audio_codec = AV_CODEC_ID_PCM_S16LE, |
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.p.video_codec = AV_CODEC_ID_RAWVIDEO, |
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.write_header = framecrc_write_header, |
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.write_packet = framecrc_write_packet, |
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.p.flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT | |
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AVFMT_TS_NEGATIVE, |
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};
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