/* * frame CRC encoder (for codec/format testing) * Copyright (c) 2002 Fabrice Bellard * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include "config.h" #include "libavutil/adler32.h" #include "libavutil/avstring.h" #include "libavutil/hdr_dynamic_metadata.h" #include "libavutil/intreadwrite.h" #include "libavcodec/codec_id.h" #include "libavcodec/codec_par.h" #include "libavcodec/packet.h" #include "avformat.h" #include "internal.h" #include "mux.h" static int framecrc_write_header(struct AVFormatContext *s) { int i; for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; AVCodecParameters *par = st->codecpar; if (par->extradata) { uint32_t crc = av_adler32_update(0, par->extradata, par->extradata_size); avio_printf(s->pb, "#extradata %d: %8d, 0x%08"PRIx32"\n", i, par->extradata_size, crc); } } return ff_framehash_write_header(s); } static av_unused void inline bswap(char *buf, int offset, int size) { if (size == 8) { uint64_t val = AV_RN64(buf + offset); AV_WN64(buf + offset, av_bswap64(val)); } else if (size == 4) { uint32_t val = AV_RN32(buf + offset); AV_WN32(buf + offset, av_bswap32(val)); } else if (size == 2) { uint16_t val = AV_RN16(buf + offset); AV_WN16(buf + offset, av_bswap16(val)); } } static int framecrc_write_packet(struct AVFormatContext *s, AVPacket *pkt) { uint32_t crc = av_adler32_update(0, pkt->data, pkt->size); char buf[256]; snprintf(buf, sizeof(buf), "%d, %10"PRId64", %10"PRId64", %8"PRId64", %8d, 0x%08"PRIx32, pkt->stream_index, pkt->dts, pkt->pts, pkt->duration, pkt->size, crc); if (pkt->flags != AV_PKT_FLAG_KEY) av_strlcatf(buf, sizeof(buf), ", F=0x%0X", pkt->flags); if (pkt->side_data_elems) { av_strlcatf(buf, sizeof(buf), ", S=%d", pkt->side_data_elems); for (int i = 0; i < pkt->side_data_elems; i++) { const AVPacketSideData *const sd = &pkt->side_data[i]; const uint8_t *data = sd->data; uint32_t side_data_crc = 0; switch (sd->type) { #if HAVE_BIGENDIAN uint8_t bswap_buf[FFMAX3(sizeof(AVCPBProperties), sizeof(AVProducerReferenceTime), sizeof(AVDynamicHDRPlus))]; case AV_PKT_DATA_PALETTE: case AV_PKT_DATA_REPLAYGAIN: case AV_PKT_DATA_DISPLAYMATRIX: case AV_PKT_DATA_STEREO3D: case AV_PKT_DATA_AUDIO_SERVICE_TYPE: case AV_PKT_DATA_FALLBACK_TRACK: case AV_PKT_DATA_MASTERING_DISPLAY_METADATA: case AV_PKT_DATA_SPHERICAL: case AV_PKT_DATA_CONTENT_LIGHT_LEVEL: case AV_PKT_DATA_S12M_TIMECODE: for (size_t j = 0; j < sd->size / 4; j++) { uint8_t buf[4]; AV_WL32(buf, AV_RB32(sd->data + 4 * j)); side_data_crc = av_adler32_update(side_data_crc, buf, 4); } break; case AV_PKT_DATA_CPB_PROPERTIES: #define BSWAP(struct, field) bswap(bswap_buf, offsetof(struct, field), sizeof(((struct){0}).field)) #define BSWAP_RAT(struct, field) do {BSWAP(struct, field.num); BSWAP(struct, field.den);} while(0) if (sd->size == sizeof(AVCPBProperties)) { memcpy(bswap_buf, sd->data, sizeof(AVCPBProperties)); data = bswap_buf; BSWAP(AVCPBProperties, max_bitrate); BSWAP(AVCPBProperties, min_bitrate); BSWAP(AVCPBProperties, avg_bitrate); BSWAP(AVCPBProperties, buffer_size); BSWAP(AVCPBProperties, vbv_delay); } goto pod; case AV_PKT_DATA_PRFT: if (sd->size == sizeof(AVProducerReferenceTime)) { memcpy(bswap_buf, sd->data, sizeof(AVProducerReferenceTime)); data = bswap_buf; BSWAP(AVProducerReferenceTime, wallclock); BSWAP(AVProducerReferenceTime, flags); } goto pod; case AV_PKT_DATA_DYNAMIC_HDR10_PLUS: if (sd->size == sizeof(AVDynamicHDRPlus)) { memcpy(bswap_buf, sd->data, sizeof(AVDynamicHDRPlus)); data = bswap_buf; for (int i = 0; i < FF_ARRAY_ELEMS(((AVDynamicHDRPlus*)0)->params); i++) { BSWAP_RAT(AVDynamicHDRPlus, params[i].window_upper_left_corner_x); BSWAP_RAT(AVDynamicHDRPlus, params[i].window_upper_left_corner_y); BSWAP_RAT(AVDynamicHDRPlus, params[i].window_lower_right_corner_x); BSWAP_RAT(AVDynamicHDRPlus, params[i].window_lower_right_corner_y); BSWAP(AVDynamicHDRPlus, params[i].center_of_ellipse_x); BSWAP(AVDynamicHDRPlus, params[i].center_of_ellipse_y); BSWAP(AVDynamicHDRPlus, params[i].semimajor_axis_internal_ellipse); BSWAP(AVDynamicHDRPlus, params[i].semimajor_axis_external_ellipse); BSWAP(AVDynamicHDRPlus, params[i].semiminor_axis_external_ellipse); //!!! overlap_process_option for(int j = 0; j < FF_ARRAY_ELEMS(((AVDynamicHDRPlus*)0)->params->maxscl); j++) BSWAP_RAT(AVDynamicHDRPlus, params[i].maxscl[j]); BSWAP_RAT(AVDynamicHDRPlus, params[i].average_maxrgb); BSWAP_RAT(AVDynamicHDRPlus, params[i].fraction_bright_pixels); BSWAP_RAT(AVDynamicHDRPlus, params[i].knee_point_x); BSWAP_RAT(AVDynamicHDRPlus, params[i].knee_point_y); for(int j = 0; j < FF_ARRAY_ELEMS(((AVDynamicHDRPlus*)0)->params->distribution_maxrgb); j++) { BSWAP_RAT(AVDynamicHDRPlus, params[i].distribution_maxrgb[j].percentile); BSWAP_RAT(AVDynamicHDRPlus, params[i].bezier_curve_anchors[j]); } BSWAP_RAT(AVDynamicHDRPlus, params[i].color_saturation_weight); } BSWAP_RAT(AVDynamicHDRPlus, targeted_system_display_maximum_luminance); for(int i = 0; itargeted_system_display_actual_peak_luminance); i++) for(int j = 0; jtargeted_system_display_actual_peak_luminance[0]); j++) { BSWAP_RAT(AVDynamicHDRPlus, targeted_system_display_actual_peak_luminance[i][j]); BSWAP_RAT(AVDynamicHDRPlus, mastering_display_actual_peak_luminance[i][j]); } } pod: #endif default: side_data_crc = av_adler32_update(0, data, sd->size); break; case AV_PKT_DATA_IAMF_MIX_GAIN_PARAM: case AV_PKT_DATA_IAMF_DEMIXING_INFO_PARAM: case AV_PKT_DATA_IAMF_RECON_GAIN_INFO_PARAM: side_data_crc = 0; } av_strlcatf(buf, sizeof(buf), ", %s, %8"SIZE_SPECIFIER", 0x%08"PRIx32, av_packet_side_data_name(sd->type), sd->size, side_data_crc); } } av_strlcatf(buf, sizeof(buf), "\n"); avio_write(s->pb, buf, strlen(buf)); return 0; } const FFOutputFormat ff_framecrc_muxer = { .p.name = "framecrc", .p.long_name = NULL_IF_CONFIG_SMALL("framecrc testing"), .p.audio_codec = AV_CODEC_ID_PCM_S16LE, .p.video_codec = AV_CODEC_ID_RAWVIDEO, .write_header = framecrc_write_header, .write_packet = framecrc_write_packet, .p.flags = AVFMT_VARIABLE_FPS | AVFMT_TS_NONSTRICT | AVFMT_TS_NEGATIVE | AVFMT_NODIMENSIONS, };