yading@11: /*
yading@11:  * frame CRC encoder (for codec/format testing)
yading@11:  * Copyright (c) 2002 Fabrice Bellard
yading@11:  *
yading@11:  * This file is part of FFmpeg.
yading@11:  *
yading@11:  * FFmpeg is free software; you can redistribute it and/or
yading@11:  * modify it under the terms of the GNU Lesser General Public
yading@11:  * License as published by the Free Software Foundation; either
yading@11:  * version 2.1 of the License, or (at your option) any later version.
yading@11:  *
yading@11:  * FFmpeg is distributed in the hope that it will be useful,
yading@11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@11:  * Lesser General Public License for more details.
yading@11:  *
yading@11:  * You should have received a copy of the GNU Lesser General Public
yading@11:  * License along with FFmpeg; if not, write to the Free Software
yading@11:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11:  */
yading@11: 
yading@11: #include "libavutil/adler32.h"
yading@11: #include "libavutil/avstring.h"
yading@11: #include "avformat.h"
yading@11: #include "internal.h"
yading@11: 
yading@11: static int framecrc_write_packet(struct AVFormatContext *s, AVPacket *pkt)
yading@11: {
yading@11:     uint32_t crc = av_adler32_update(0, pkt->data, pkt->size);
yading@11:     char buf[256];
yading@11: 
yading@11:     snprintf(buf, sizeof(buf), "%d, %10"PRId64", %10"PRId64", %8d, %8d, 0x%08x",
yading@11:              pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size, crc);
yading@11:     if (pkt->flags != AV_PKT_FLAG_KEY)
yading@11:         av_strlcatf(buf, sizeof(buf), ", F=0x%0X", pkt->flags);
yading@11:     if (pkt->side_data_elems) {
yading@11:         int i;
yading@11:         av_strlcatf(buf, sizeof(buf), ", S=%d", pkt->side_data_elems);
yading@11: 
yading@11:         for (i=0; i<pkt->side_data_elems; i++) {
yading@11:             uint32_t side_data_crc = av_adler32_update(0,
yading@11:                                                     pkt->side_data[i].data,
yading@11:                                                     pkt->side_data[i].size);
yading@11:             av_strlcatf(buf, sizeof(buf), ", %8d, 0x%08x", pkt->side_data[i].size, side_data_crc);
yading@11:         }
yading@11:     }
yading@11:     av_strlcatf(buf, sizeof(buf), "\n");
yading@11:     avio_write(s->pb, buf, strlen(buf));
yading@11:     return 0;
yading@11: }
yading@11: 
yading@11: AVOutputFormat ff_framecrc_muxer = {
yading@11:     .name              = "framecrc",
yading@11:     .long_name         = NULL_IF_CONFIG_SMALL("framecrc testing"),
yading@11:     .audio_codec       = AV_CODEC_ID_PCM_S16LE,
yading@11:     .video_codec       = AV_CODEC_ID_RAWVIDEO,
yading@11:     .write_header      = ff_framehash_write_header,
yading@11:     .write_packet      = framecrc_write_packet,
yading@11:     .flags             = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT,
yading@11: };