716 lines
37 KiB
C
716 lines
37 KiB
C
/*
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* h265.c: Frontend Status Monitor plugin for the Video Disk Recorder
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*
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* See the README file for copyright information and how to reach the author.
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*
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*/
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#include <math.h>
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#include "log.h"
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#include "tools.h"
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#include "h265.h"
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const cFemonH265::t_DAR cFemonH265::darS[] =
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{
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{ VIDEO_ASPECT_RATIO_1_1, 100 },
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{ VIDEO_ASPECT_RATIO_4_3, 133 },
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{ VIDEO_ASPECT_RATIO_16_9, 177 },
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{ VIDEO_ASPECT_RATIO_2_21_1, 221 },
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{ VIDEO_ASPECT_RATIO_12_11, 109 },
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{ VIDEO_ASPECT_RATIO_10_11, 90 },
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{ VIDEO_ASPECT_RATIO_16_11, 145 },
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{ VIDEO_ASPECT_RATIO_40_33, 121 },
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{ VIDEO_ASPECT_RATIO_24_11, 218 },
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{ VIDEO_ASPECT_RATIO_20_11, 181 },
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{ VIDEO_ASPECT_RATIO_32_11, 290 },
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{ VIDEO_ASPECT_RATIO_80_33, 242 },
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{ VIDEO_ASPECT_RATIO_18_11, 163 },
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{ VIDEO_ASPECT_RATIO_15_11, 136 },
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{ VIDEO_ASPECT_RATIO_64_33, 193 },
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{ VIDEO_ASPECT_RATIO_160_99, 161 },
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{ VIDEO_ASPECT_RATIO_3_2, 150 },
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{ VIDEO_ASPECT_RATIO_2_1, 200 }
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};
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const cFemonH265::t_SAR cFemonH265::sarS[] =
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{
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{ 0, 0 }, // VIDEO_ASPECT_RATIO_INVALID
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{ 1, 1 }, // VIDEO_ASPECT_RATIO_1_1
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{ 12, 11 }, // VIDEO_ASPECT_RATIO_12_11
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{ 10, 11 }, // VIDEO_ASPECT_RATIO_10_11
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{ 16, 11 }, // VIDEO_ASPECT_RATIO_16_11
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{ 40, 33 }, // VIDEO_ASPECT_RATIO_40_33
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{ 24, 11 }, // VIDEO_ASPECT_RATIO_24_11
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{ 20, 11 }, // VIDEO_ASPECT_RATIO_20_11
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{ 32, 11 }, // VIDEO_ASPECT_RATIO_32_11
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{ 80, 33 }, // VIDEO_ASPECT_RATIO_80_33
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{ 18, 11 }, // VIDEO_ASPECT_RATIO_18_11
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{ 15, 11 }, // VIDEO_ASPECT_RATIO_15_11
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{ 64, 33 }, // VIDEO_ASPECT_RATIO_64_33
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{ 160, 99 }, // VIDEO_ASPECT_RATIO_160_99
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{ 4, 3 }, // VIDEO_ASPECT_RATIO_4_3
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{ 3, 2 }, // VIDEO_ASPECT_RATIO_3_2
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{ 2, 1 } // VIDEO_ASPECT_RATIO_2_1
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};
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const eVideoFormat cFemonH265::videoFormatS[] =
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{
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VIDEO_FORMAT_COMPONENT,
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VIDEO_FORMAT_PAL,
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VIDEO_FORMAT_NTSC,
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VIDEO_FORMAT_SECAM,
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VIDEO_FORMAT_MAC,
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VIDEO_FORMAT_UNKNOWN,
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VIDEO_FORMAT_RESERVED,
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VIDEO_FORMAT_RESERVED
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};
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cFemonH265::cFemonH265(cFemonVideoIf *videoHandlerP)
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: videoHandlerM(videoHandlerP),
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widthM(0),
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heightM(0),
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aspectRatioM(VIDEO_ASPECT_RATIO_INVALID),
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formatM(VIDEO_FORMAT_INVALID),
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frameRateM(0),
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bitRateM(0),
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scanM(VIDEO_SCAN_INVALID),
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frameFieldInfoPresentFlagM(false)
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{
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reset();
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}
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cFemonH265::~cFemonH265()
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{
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}
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bool cFemonH265::processVideo(const uint8_t *bufP, int lenP)
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{
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uint8_t nal_data[lenP];
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bool aud_found = false, sps_found = false, sei_found = true; // SEI temporarily disabled!
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const uint8_t *buf = bufP;
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const uint8_t *start = buf;
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const uint8_t *end = start + lenP;
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if (!videoHandlerM)
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return false;
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// skip PES header
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if (!PesLongEnough(lenP))
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return false;
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buf += PesPayloadOffset(buf);
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start = buf;
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reset();
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for (;;) {
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int consumed = 0;
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buf = nextStartCode(buf, end);
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if (buf >= end)
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break;
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switch ((buf[3] >> 1) & 0x3F) {
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case NAL_AUD:
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if (!aud_found) {
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debug2("%s Found NAL AUD at offset %d/%d", __PRETTY_FUNCTION__, int(buf - start), lenP);
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aud_found = true;
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}
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break;
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case NAL_SPS:
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if (!sps_found) {
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debug2("%s Found NAL SPS at offset %d/%d", __PRETTY_FUNCTION__, int(buf - start), lenP);
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int nal_len = nalUnescape(nal_data, buf + 5, int(end - buf - 5));
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consumed = parseSPS(nal_data, nal_len);
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if (consumed > 0)
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sps_found = true;
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}
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break;
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case NAL_SEI:
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if (!sei_found) {
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debug2("%s Found NAL SEI at offset %d/%d", __PRETTY_FUNCTION__, int(buf - start), lenP);
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int nal_len = nalUnescape(nal_data, buf + 5, int(end - buf - 5));
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consumed = parseSEI(nal_data, nal_len);
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if (consumed > 0)
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sei_found = true;
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}
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break;
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default:
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break;
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}
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if (aud_found && sps_found && sei_found)
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break;
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buf += consumed + 4;
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}
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if (aud_found) {
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videoHandlerM->SetVideoCodec(VIDEO_CODEC_H265);
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if (sps_found) {
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debug2("%s width=%d height=%d, aspect=%d format=%d bitrate=%.0f", __PRETTY_FUNCTION__, widthM, heightM, aspectRatioM, formatM, bitRateM);
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videoHandlerM->SetVideoSize(widthM, heightM);
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videoHandlerM->SetVideoFormat(formatM);
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videoHandlerM->SetVideoAspectRatio(aspectRatioM);
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videoHandlerM->SetVideoBitrate(bitRateM);
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}
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if (sps_found || sei_found) {
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debug2("%s scan=%d framerate=%.2f", __PRETTY_FUNCTION__, scanM, frameRateM);
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videoHandlerM->SetVideoScan(scanM);
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videoHandlerM->SetVideoFramerate(frameRateM);
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}
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}
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return sps_found;
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}
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void cFemonH265::reset()
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{
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frameFieldInfoPresentFlagM = false;
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}
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const uint8_t *cFemonH265::nextStartCode(const uint8_t *startP, const uint8_t *endP)
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{
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for (endP -= 3; startP < endP; ++startP) {
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if ((startP[0] == 0x00) && (startP[1] == 0x00) && (startP[2] == 0x01))
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return startP;
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}
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return (endP + 3);
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}
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int cFemonH265::nalUnescape(uint8_t *dstP, const uint8_t *srcP, int lenP)
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{
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int s = 0, d = 0;
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while (s < lenP - 3) {
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if (!srcP[s] && !srcP[s + 1] && srcP[s + 2] == 3) {
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dstP[d++] = srcP[s++];
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dstP[d++] = srcP[s++];
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s++; // skip emulation_prevention_three_byte
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}
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else
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dstP[d++] = srcP[s++];
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}
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while (s < lenP)
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dstP[d++] = srcP[s++];
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return d;
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}
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int cFemonH265::parseSPS(const uint8_t *bufP, int lenP)
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{
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cFemonBitStream bs(bufP, lenP);
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uint32_t width = widthM;
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uint32_t height = heightM;
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eVideoFormat format = formatM;
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eVideoAspectRatio aspect_ratio = aspectRatioM;
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eVideoScan scan = scanM;
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double frame_rate = frameRateM;
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double bit_rate = bitRateM;
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bool frame_field_info_present_flag = frameFieldInfoPresentFlagM;
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const char *profile_name = NULL;
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bool general_tier_flag, conformance_window_flag, sps_sub_layer_ordering_info_present_flag, profilePresentFlag = true;
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bool general_max_12bit_constraint_flag = false, general_max_10bit_constraint_flag = false, general_max_8bit_constraint_flag = false;
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bool general_max_422chroma_constraint_flag = false, general_max_420chroma_constraint_flag = false, general_max_monochrome_constraint_flag = false;
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bool general_intra_constraint_flag = false, general_one_picture_only_constraint_flag = false, general_lower_bit_rate_constraint_flag = false;
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bool general_progressive_source_flag, general_interlaced_source_flag, general_profile_compatibility_flag[32];
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uint32_t chroma_format_idc, log2_max_pic_order_cnt_lsb_minus4, num_short_term_ref_pic_sets, num_long_term_ref_pics_sps;
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uint8_t sps_max_sub_layers_minus1, sub_layer_profile_present_flag[8], sub_layer_level_present_flag[8], general_profile_idc, general_level_idc;
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bs.SkipBits(4); // sps_video_parameter_set_id
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sps_max_sub_layers_minus1 = bs.GetBits(3); // sps_max_sub_layers_minus1
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bs.SkipBit(); // sps_temporal_id_nesting_flag
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// start of profile_tier_level(1, sps_max_sub_layers_minus1)
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if (profilePresentFlag) {
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bs.SkipBits(2); // general_profile_space
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general_tier_flag = bs.GetBit(); // general_tier_flag
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general_profile_idc = bs.GetBits(5); // general_profile_idc
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for (int i = 0; i < 32; ++i) {
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general_profile_compatibility_flag[i] = bs.GetBit(); // general_profile_compatibility_flag[i]
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}
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general_progressive_source_flag = bs.GetBit(); // general_progressive_source_flag
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general_interlaced_source_flag = bs.GetBit(); // general_interlaced_source_flag
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if (general_progressive_source_flag && !general_interlaced_source_flag)
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scan = VIDEO_SCAN_PROGRESSIVE;
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else if (!general_progressive_source_flag && general_interlaced_source_flag)
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scan = VIDEO_SCAN_INTERLACED;
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else if (!general_progressive_source_flag && !general_interlaced_source_flag)
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scan = VIDEO_SCAN_UNKNOWN;
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else
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scan = VIDEO_SCAN_INVALID;
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debug2("%s general_progressive_source_flag=%d general_interlaced_source_flag=%d scan_type=%d", __PRETTY_FUNCTION__, general_progressive_source_flag, general_interlaced_source_flag, scan);
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bs.SkipBit(); // general_non_packed_constraint_flag
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bs.SkipBit(); // general_frame_only_constraint_flag
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if (general_profile_idc == 4 || general_profile_compatibility_flag[4] ||
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general_profile_idc == 5 || general_profile_compatibility_flag[5] ||
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general_profile_idc == 6 || general_profile_compatibility_flag[6] ||
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general_profile_idc == 7 || general_profile_compatibility_flag[7]) {
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// the number of bits in this syntax structure is not affected by this condition
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general_max_12bit_constraint_flag = bs.GetBit(); // general_max_12bit_constraint_flag
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general_max_10bit_constraint_flag = bs.GetBit(); // general_max_10bit_constraint_flag
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general_max_8bit_constraint_flag = bs.GetBit(); // general_max_8bit_constraint_flag
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debug2("%s general_max_12bit_constraint_flag=%d general_max_10bit_constraint_flag=%d general_max_8bit_constraint_flag=%d", __PRETTY_FUNCTION__, general_max_12bit_constraint_flag, general_max_10bit_constraint_flag, general_max_8bit_constraint_flag);
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general_max_422chroma_constraint_flag = bs.GetBit(); // general_max_422chroma_constraint_flag
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general_max_420chroma_constraint_flag = bs.GetBit(); // general_max_420chroma_constraint_flag
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general_max_monochrome_constraint_flag = bs.GetBit(); // general_max_monochrome_constraint_flag
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debug2("%s general_max_422chroma_constraint_flag=%d general_max_420chroma_constraint_flag=%d general_max_monochrome_constraint_flag=%d", __PRETTY_FUNCTION__, general_max_422chroma_constraint_flag, general_max_420chroma_constraint_flag, general_max_monochrome_constraint_flag);
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general_intra_constraint_flag = bs.GetBit(); // general_intra_constraint_flag
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general_one_picture_only_constraint_flag = bs.GetBit(); // general_one_picture_only_constraint_flag
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general_lower_bit_rate_constraint_flag = bs.GetBit(); // general_lower_bit_rate_constraint_flag
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debug2("%s general_intra_constraint_flag=%d general_one_picture_only_constraint_flag=%d general_lower_bit_rate_constraint_flag=%d", __PRETTY_FUNCTION__, general_intra_constraint_flag, general_one_picture_only_constraint_flag, general_lower_bit_rate_constraint_flag);
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bs.SkipBits(34); // general_reserved_zero_34bits
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}
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else
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bs.SkipBits(43); // general_reserved_zero_43bits
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// the number of bits in this syntax structure is not affected by this condition
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bs.SkipBit(); // general_reserved_zero_bit
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}
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general_level_idc = bs.GetBits(8); // general_level_idc
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debug2("%s general_profile_idc=%d general_tier_flag=%d general_level_idc=%d", __PRETTY_FUNCTION__, general_profile_idc, general_tier_flag, general_level_idc);
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switch (general_profile_idc) {
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default:
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case 0:
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profile_name = "None";
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break;
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case 1:
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profile_name = "Main";
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break;
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case 2:
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profile_name = "Main 10";
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break;
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case 3:
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profile_name = "Main Still Picture";
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break;
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case 4:
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profile_name = "Format Range Extensions";
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break;
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case 5:
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profile_name = "Format Range Extensions High Throughput";
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break;
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}
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if (general_profile_idc == 1 || general_profile_idc == 2)
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switch (general_level_idc) {
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case 30: // level 1
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bit_rate = general_tier_flag ? 0 : 128000;
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break;
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case 60: // level 2
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bit_rate = general_tier_flag ? 0 : 1500000;
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break;
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case 63: // level 2.1
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bit_rate = general_tier_flag ? 0 : 3000000;
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break;
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case 90: // level 3
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bit_rate = general_tier_flag ? 0 : 6000000;
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break;
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case 93: // level 3
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bit_rate = general_tier_flag ? 0 : 10000000;
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break;
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case 120: // level 4
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bit_rate = general_tier_flag ? 30000000 : 12000000;
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break;
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case 123: // level 4.1
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bit_rate = general_tier_flag ? 50000000 : 20000000;
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break;
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case 150: // level 5
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bit_rate = general_tier_flag ? 100000000 : 25000000;
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break;
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case 153: // level 5.1
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bit_rate = general_tier_flag ? 160000000 : 40000000;
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break;
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case 156: // level 5.2
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bit_rate = general_tier_flag ? 240000000 : 60000000;
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break;
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case 180: // level 6
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bit_rate = general_tier_flag ? 240000000 : 60000000;
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break;
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case 183: // level 6.1
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bit_rate = general_tier_flag ? 480000000 : 120000000;
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break;
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case 186: // level 6.2
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bit_rate = general_tier_flag ? 800000000 : 240000000;
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break;
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default:
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bit_rate = 0;
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break;
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}
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else
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bit_rate = 0;
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debug2("%s profile=\"%s@L%.1f@%s\" bit_rate=%.f", __PRETTY_FUNCTION__, profile_name, (double)general_level_idc / 30, general_tier_flag ? "High" : "Main", bit_rate);
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for (int i = 0; i < sps_max_sub_layers_minus1; ++i) {
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sub_layer_profile_present_flag[i] = bs.GetBit(); // sub_layer_profile_present_flag[i]
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sub_layer_level_present_flag[i] = bs.GetBit(); // sub_layer_level_present_flag[i]
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}
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if (sps_max_sub_layers_minus1 > 0) {
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for (int i = sps_max_sub_layers_minus1; i < 8; ++i)
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bs.SkipBits(2); // reserved_zero_2bits[i]
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}
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for (int i = 0; i < sps_max_sub_layers_minus1; ++i) {
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if (sub_layer_profile_present_flag[i]) {
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bs.SkipBits(2); // sub_layer_profile_space[i]
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bs.SkipBit(); // sub_layer_tier_flag[i]
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bs.SkipBits(5); // sub_layer_profile_idc[i]
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bs.SkipBits(32); // sub_layer_profile_compatibility_flag[i][0-31]
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bs.SkipBit(); // sub_layer_progressive_source_flag[i]
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bs.SkipBit(); // sub_layer_interlaced_source_flag[i]
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bs.SkipBit(); // sub_layer_non_packed_constraint_flag[i]
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bs.SkipBit(); // sub_layer_frame_only_constraint_flag[i]
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// the number of bits in this syntax structure is not affected by this condition
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bs.SkipBits(43); // sub_layer_reserved_zero_43bits[i]
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// the number of bits in this syntax structure is not affected by this condition
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bs.SkipBit(); // sub_layer_reserved_zero_bit[i]
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}
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if (sub_layer_level_present_flag[i])
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bs.SkipBits(8); // sub_layer_level_idc[i]
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}
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// end of profile_tier_level
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bs.SkipUeGolomb(); // sps_seq_parameter_set_id
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chroma_format_idc = bs.GetUeGolomb(); // chroma_format_idc
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if (chroma_format_idc == 3)
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bs.SkipBit(); // separate_colour_plane_flag
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width = bs.GetUeGolomb(); // pic_width_in_luma_samples
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height = bs.GetUeGolomb(); // pic_height_in_luma_samples
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conformance_window_flag = bs.GetBit(); // conformance_window_flag
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if (conformance_window_flag) {
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bs.SkipUeGolomb(); // conf_win_left_offset
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bs.SkipUeGolomb(); // conf_win_right_offset
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bs.SkipUeGolomb(); // conf_win_top_offset
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bs.SkipUeGolomb(); // conf_win_bottom_offset
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}
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bs.SkipUeGolomb(); // bit_depth_luma_minus8
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bs.SkipUeGolomb(); // bit_depth_chroma_minus8
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log2_max_pic_order_cnt_lsb_minus4 = bs.GetUeGolomb(); // log2_max_pic_order_cnt_lsb_minus4
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sps_sub_layer_ordering_info_present_flag = bs.GetBit(); // sps_sub_layer_ordering_info_present_flag
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for (int i = (sps_sub_layer_ordering_info_present_flag ? 0 : sps_max_sub_layers_minus1); i <= sps_max_sub_layers_minus1; ++i) {
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bs.SkipUeGolomb(); // sps_max_dec_pic_buffering_minus1[i]
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bs.SkipUeGolomb(); // sps_max_num_reorder_pics[i]
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bs.SkipUeGolomb(); // sps_max_latency_increase_plus1[i]
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}
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bs.SkipUeGolomb(); // log2_min_luma_coding_block_size_minus3
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bs.SkipUeGolomb(); // log2_diff_max_min_luma_coding_block_size
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bs.SkipUeGolomb(); // log2_min_luma_transform_block_size_minus2
|
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bs.SkipUeGolomb(); // log2_diff_max_min_luma_transform_block_size
|
||
bs.SkipUeGolomb(); // max_transform_hierarchy_depth_inter
|
||
bs.SkipUeGolomb(); // max_transform_hierarchy_depth_intra
|
||
if (bs.GetBit()) { // scaling_list_enabled_flag
|
||
if (bs.GetBit()) { // sps_scaling_list_data_present_flag
|
||
// start of scaling_list_data()
|
||
for (int sizeId = 0; sizeId < 4; ++sizeId) {
|
||
for (int matrixId = 0; matrixId < 6; matrixId += (sizeId == 3) ? 3 : 1) {
|
||
if (!bs.GetBit()) // scaling_list_pred_mode_flag[sizeId][matrixId]
|
||
bs.SkipUeGolomb(); // scaling_list_pred_matrix_id_delta[sizeId][matrixId]
|
||
else {
|
||
int coefNum = min(64, (1 << (4 + (sizeId << 1))));
|
||
if (sizeId > 1)
|
||
bs.SkipSeGolomb(); // scaling_list_dc_coef_minus8[sizeId−2][matrixId]
|
||
for (int i = 0; i < coefNum; ++i)
|
||
bs.SkipSeGolomb(); // scaling_list_delta_coef
|
||
}
|
||
}
|
||
}
|
||
// end of scaling_list_data()
|
||
}
|
||
}
|
||
bs.SkipBit(); // amp_enabled_flag
|
||
bs.SkipBit(); // sample_adaptive_offset_enabled_flag
|
||
if (bs.GetBit()) { // pcm_enabled_flag
|
||
bs.SkipBits(4); // pcm_sample_bit_depth_luma_minus1
|
||
bs.SkipBits(4); // pcm_sample_bit_depth_chroma_minus1
|
||
bs.SkipUeGolomb(); // log2_min_pcm_luma_coding_block_size_minus3
|
||
bs.SkipUeGolomb(); // log2_diff_max_min_pcm_luma_coding_block_size
|
||
bs.SkipBit(); // pcm_loop_filter_disabled_flag
|
||
}
|
||
num_short_term_ref_pic_sets = bs.GetUeGolomb(); // num_short_term_ref_pic_sets
|
||
uint32_t NumDeltaPocs[num_short_term_ref_pic_sets];
|
||
for (uint32_t stRpsIdx = 0; stRpsIdx < num_short_term_ref_pic_sets; ++stRpsIdx) {
|
||
// start of st_ref_pic_set(stRpsIdx)
|
||
bool inter_ref_pic_set_prediction_flag = false;
|
||
if (stRpsIdx != 0)
|
||
inter_ref_pic_set_prediction_flag = bs.GetBit(); // inter_ref_pic_set_prediction_flag
|
||
if (inter_ref_pic_set_prediction_flag) {
|
||
uint32_t RefRpsIdx, delta_idx_minus1 = 0;
|
||
if (stRpsIdx == num_short_term_ref_pic_sets)
|
||
delta_idx_minus1 = bs.GetUeGolomb(); // delta_idx_minus1
|
||
bs.SkipBit(); // delta_rps_sign
|
||
bs.SkipUeGolomb(); // abs_delta_rps_minus1
|
||
RefRpsIdx = stRpsIdx - (delta_idx_minus1 + 1);
|
||
NumDeltaPocs[stRpsIdx] = 0;
|
||
for (uint32_t j = 0; j <= NumDeltaPocs[RefRpsIdx]; ++j) {
|
||
if (!bs.GetBit()) { // used_by_curr_pic_flag[j]
|
||
if (bs.GetBit()) // use_delta_flag[j]
|
||
NumDeltaPocs[stRpsIdx]++;
|
||
}
|
||
else
|
||
NumDeltaPocs[stRpsIdx]++;
|
||
}
|
||
}
|
||
else {
|
||
uint32_t num_negative_pics = bs.GetUeGolomb(); // num_negative_pics
|
||
uint32_t num_positive_pics = bs.GetUeGolomb(); // num_positive_pics
|
||
for (uint32_t j = 0; j < num_negative_pics; ++j) {
|
||
bs.SkipUeGolomb(); // delta_poc_s0_minus1[i]
|
||
bs.SkipBit(); // used_by_curr_pic_s0_flag[i]
|
||
}
|
||
for (uint32_t j = 0; j < num_positive_pics; ++j) {
|
||
bs.SkipUeGolomb(); // delta_poc_s1_minus1[i]
|
||
bs.SkipBit(); // delta_poc_s1_minus1[i]
|
||
}
|
||
NumDeltaPocs[stRpsIdx] = num_negative_pics + num_positive_pics;
|
||
}
|
||
// end of st_ref_pic_set(stRpsIdx)
|
||
}
|
||
if (bs.GetBit()) { // long_term_ref_pics_present_flag
|
||
num_long_term_ref_pics_sps = bs.GetUeGolomb(); // num_long_term_ref_pics_sps
|
||
for (uint32_t i = 0; i < num_long_term_ref_pics_sps; ++i) {
|
||
bs.SkipBits(log2_max_pic_order_cnt_lsb_minus4 + 4); // lt_ref_pic_poc_lsb_sps[i]
|
||
bs.SkipBit(); // used_by_curr_pic_lt_sps_flag[i]
|
||
}
|
||
}
|
||
bs.SkipBit(); // sps_temporal_mvp_enabled_flag
|
||
bs.SkipBit(); // strong_intra_smoothing_enabled_flag
|
||
if (bs.GetBit()) { // vui_parameters_present_flag
|
||
// start of vui_parameters()
|
||
if (bs.GetBit()) { // aspect_ratio_info_present_flag
|
||
uint32_t sar_width = 0, sar_height = 0;
|
||
uint8_t aspect_ratio_idc = bs.GetBits(8); // aspect_ratio_idc
|
||
debug2("%s aspect_ratio_idc=%d", __PRETTY_FUNCTION__, aspect_ratio_idc);
|
||
if (aspect_ratio_idc == 255) { // EXTENDED_SAR
|
||
sar_width = bs.GetBits(16); // sar_width
|
||
sar_height = bs.GetBits(16); // sar_height
|
||
}
|
||
else if (aspect_ratio_idc < ELEMENTS(sarS)) {
|
||
sar_width = sarS[aspect_ratio_idc].w;
|
||
sar_height = sarS[aspect_ratio_idc].h;
|
||
}
|
||
if (sar_width && sar_height) {
|
||
int index = -1, ratio = int(100.0L * sar_width * width / sar_height / height);
|
||
for (unsigned int i = 0; i < ELEMENTS(darS); ++i) {
|
||
if (darS[i].ratio == ratio) {
|
||
index = i;
|
||
break;
|
||
}
|
||
}
|
||
if (index < 0) {
|
||
if (aspect_ratio_idc == 255)
|
||
aspect_ratio = VIDEO_ASPECT_RATIO_EXTENDED;
|
||
else
|
||
aspect_ratio = VIDEO_ASPECT_RATIO_INVALID;
|
||
}
|
||
else
|
||
aspect_ratio = darS[index].dar;
|
||
debug2("%s sar_width=%d sar_height=%d aspect_ratio=%d", __PRETTY_FUNCTION__, sar_width, sar_height, aspect_ratio);
|
||
}
|
||
}
|
||
if (bs.GetBit()) // overscan_info_present_flag
|
||
bs.SkipBit(); // overscan_appropriate_flag
|
||
if (bs.GetBit()) { // video_signal_type_present_flag
|
||
uint32_t video_format = bs.GetBits(3); // video_format
|
||
if (video_format < ELEMENTS(videoFormatS)) {
|
||
format = videoFormatS[video_format];
|
||
debug2("%s video_format=%d format=%d", __PRETTY_FUNCTION__, video_format, format);
|
||
}
|
||
bs.SkipBit(); // video_full_range_flag
|
||
if (bs.GetBit()) { // colour_description_present_flag
|
||
bs.SkipBits(8); // colour_primaries
|
||
bs.SkipBits(8); // transfer_characteristics
|
||
bs.SkipBits(8); // matrix_coeffs
|
||
}
|
||
}
|
||
if (bs.GetBit()) { // chroma_loc_info_present_flag
|
||
bs.SkipUeGolomb(); // chroma_sample_loc_type_top_field
|
||
bs.SkipUeGolomb(); // chroma_sample_loc_type_bottom_field
|
||
}
|
||
bs.SkipBit(); // neutral_chroma_indication_flag
|
||
bs.SkipBit(); // field_seq_flag
|
||
frame_field_info_present_flag = bs.GetBit(); // frame_field_info_present_flag
|
||
debug2("%s frame_field_info_present_flag=%d", __PRETTY_FUNCTION__, frame_field_info_present_flag);
|
||
if (bs.GetBit()) { // default_display_window_flag
|
||
bs.SkipUeGolomb(); // def_disp_win_left_offset
|
||
bs.SkipUeGolomb(); // def_disp_win_right_offset
|
||
bs.SkipUeGolomb(); // def_disp_win_top_offset
|
||
bs.SkipUeGolomb(); // def_disp_win_bottom_offset
|
||
}
|
||
if (bs.GetBit()) { // vui_timing_info_present_flag
|
||
uint32_t vui_num_units_in_tick = bs.GetBits(32); // vui_num_units_in_tick
|
||
uint32_t vui_time_scale = bs.GetBits(32); // vui_time_scale
|
||
if (vui_num_units_in_tick > 0) {
|
||
frame_rate = (double)vui_time_scale / vui_num_units_in_tick;
|
||
debug2("%s frame_rate = vui_time_scale(%d) / vui_num_units_in_tick(%d) = %.f", __PRETTY_FUNCTION__, vui_time_scale, vui_num_units_in_tick, frame_rate);
|
||
}
|
||
if (bs.GetBit()) // vui_poc_proportional_to_timing_flag
|
||
bs.SkipUeGolomb(); // vui_num_ticks_poc_diff_one_minus1
|
||
if (bs.GetBit()) { // vui_hrd_parameters_present_flag
|
||
// start of hrd_parameters(1, sps_max_sub_layers_minus1)
|
||
uint32_t bit_rate_scale = 0;
|
||
bool commonInfPresentFlag = true, nal_hrd_parameters_present_flag = false, vcl_hrd_parameters_present_flag = false, sub_pic_hrd_params_present_flag = false;
|
||
if (commonInfPresentFlag) {
|
||
nal_hrd_parameters_present_flag = bs.GetBit(); // nal_hrd_parameters_present_flag
|
||
vcl_hrd_parameters_present_flag = bs.GetBit(); // vcl_hrd_parameters_present_flag
|
||
if (nal_hrd_parameters_present_flag || vcl_hrd_parameters_present_flag) {
|
||
sub_pic_hrd_params_present_flag = bs.GetBit(); // sub_pic_hrd_params_present_flag
|
||
if (sub_pic_hrd_params_present_flag) {
|
||
bs.SkipBits(8); // tick_divisor_minus2
|
||
bs.SkipBits(5); // du_cpb_removal_delay_increment_length_minus1
|
||
bs.SkipBit(); // sub_pic_cpb_params_in_pic_timing_sei_flag
|
||
bs.SkipBits(5); // dpb_output_delay_du_length_minus1
|
||
}
|
||
bit_rate_scale = bs.GetBits(4); // bit_rate_scale
|
||
bs.SkipBits(4); // cpb_size_scale
|
||
if (sub_pic_hrd_params_present_flag)
|
||
bs.SkipBits(4); // cpb_size_du_scale
|
||
bs.SkipBits(5); // initial_cpb_removal_delay_length_minus1
|
||
bs.SkipBits(5); // au_cpb_removal_delay_length_minus1
|
||
bs.SkipBits(5); // dpb_output_delay_length_minus1
|
||
}
|
||
}
|
||
for (uint32_t i = 0; i <= sps_max_sub_layers_minus1; ++i) {
|
||
bool fixed_pic_rate_within_cvs_flag = false, low_delay_hrd_flag = false;
|
||
uint32_t cpb_cnt_minus1 = 0;
|
||
if (!bs.GetBit()) // fixed_pic_rate_general_flag[i]
|
||
fixed_pic_rate_within_cvs_flag = bs.GetBit(); // fixed_pic_rate_within_cvs_flag[i]
|
||
if (fixed_pic_rate_within_cvs_flag)
|
||
bs.SkipUeGolomb(); // elemental_duration_in_tc_minus1[i]
|
||
else
|
||
low_delay_hrd_flag = bs.GetBit(); // low_delay_hrd_flag[i]
|
||
if (!low_delay_hrd_flag)
|
||
cpb_cnt_minus1 = bs.GetUeGolomb(); // cpb_cnt_minus1[i]
|
||
if (nal_hrd_parameters_present_flag) {
|
||
// start of sub_layer_hrd_parameters(i)
|
||
for (uint32_t i = 0; i <= cpb_cnt_minus1; ++i) {
|
||
uint32_t bit_rate_value_minus1;
|
||
bit_rate_value_minus1 = bs.GetUeGolomb(); // bit_rate_value_minus1[i]
|
||
bs.SkipUeGolomb(); // cpb_size_value_minus1[i]
|
||
if (sub_pic_hrd_params_present_flag) {
|
||
bs.SkipUeGolomb(); // cpb_size_du_value_minus1[i]
|
||
bs.SkipUeGolomb(); // bit_rate_du_value_minus1[i]
|
||
}
|
||
else {
|
||
double bitrate = (double)((bit_rate_value_minus1 + 1) * pow(2.0, 6 + bit_rate_scale));
|
||
debug2("%s bit_rate_value_minus1(%u) + 1 * 2 ^ (6 + bit_rate_scale(%u)) = %.f", __PRETTY_FUNCTION__, bit_rate_value_minus1, bit_rate_scale, bitrate);
|
||
}
|
||
bs.SkipBit(); // cbr_flag[i]
|
||
}
|
||
// end of sub_layer_hrd_parameters(i)
|
||
}
|
||
if (vcl_hrd_parameters_present_flag) {
|
||
// start of sub_layer_hrd_parameters(i)
|
||
for (uint32_t i = 0; i <= cpb_cnt_minus1; ++i) {
|
||
bs.SkipUeGolomb(); // bit_rate_value_minus1[i]
|
||
bs.SkipUeGolomb(); // cpb_size_value_minus1[i]
|
||
if (sub_pic_hrd_params_present_flag) {
|
||
bs.SkipUeGolomb(); // cpb_size_du_value_minus1[i]
|
||
bs.SkipUeGolomb(); // bit_rate_du_value_minus1[i]
|
||
}
|
||
bs.SkipBit(); // cbr_flag[i]
|
||
}
|
||
// end of sub_layer_hrd_parameters(i)
|
||
}
|
||
}
|
||
// end of hrd_parameters(1, sps_max_sub_layers_minus1)
|
||
}
|
||
}
|
||
if (bs.GetBit()) { // bitstream_restriction_flag
|
||
bs.SkipBit(); // tiles_fixed_structure_flag
|
||
bs.SkipBit(); // motion_vectors_over_pic_boundaries_flag
|
||
bs.SkipBit(); // restricted_ref_pic_lists_flag
|
||
bs.SkipUeGolomb(); // min_spatial_segmentation_idc
|
||
bs.SkipUeGolomb(); // max_bytes_per_pic_denom
|
||
bs.SkipUeGolomb(); // max_bits_per_min_cu_denom
|
||
bs.SkipUeGolomb(); // log2_max_mv_length_horizontal
|
||
bs.SkipUeGolomb(); // log2_max_mv_length_vertical
|
||
}
|
||
// end of vui_parameters()
|
||
}
|
||
if (bs.GetBit()) { // sps_extension_present_flag
|
||
bs.SkipBit(); // sps_range_extension_flag
|
||
bs.SkipBit(); // sps_multilayer_extension_flag
|
||
bs.SkipBit(); // sps_3d_extension_flag
|
||
bs.SkipBits(5); // sps_extension_5bits
|
||
}
|
||
|
||
widthM = width;
|
||
heightM = height;
|
||
formatM = format;
|
||
aspectRatioM = aspect_ratio;
|
||
scanM = scan;
|
||
frameRateM = frame_rate;
|
||
bitRateM = bit_rate;
|
||
frameFieldInfoPresentFlagM = frame_field_info_present_flag;
|
||
|
||
return (bs.Index() / 8);
|
||
}
|
||
|
||
int cFemonH265::parseSEI(const uint8_t *bufP, int lenP)
|
||
{
|
||
cFemonBitStream bs(bufP, lenP);
|
||
|
||
eVideoScan scan = scanM;
|
||
|
||
while ((bs.Index() * 8 + 16) < lenP) { // sei_message
|
||
int len, lastByte, payloadSize = 0, payloadType = 0;
|
||
|
||
do {
|
||
lastByte = bs.GetBits(8) & 0xFF;
|
||
payloadType += lastByte;
|
||
} while (lastByte == 0xFF); // last_payload_type_byte
|
||
|
||
do {
|
||
lastByte = bs.GetBits(8) & 0xFF;
|
||
payloadSize += lastByte;
|
||
} while (lastByte == 0xFF); // last_payload_size_byte
|
||
|
||
switch (payloadType) { // sei_payload
|
||
case 1: // pic_timing
|
||
len = payloadSize * 8;
|
||
if (frameFieldInfoPresentFlagM) {
|
||
uint8_t pic_struct = bs.GetBits(4); // pic_struct
|
||
switch (pic_struct) {
|
||
case 0: // frame
|
||
case 7: // frame doubling
|
||
case 8: // frame tripling
|
||
scan = VIDEO_SCAN_PROGRESSIVE;
|
||
break;
|
||
case 1: // top
|
||
case 2: // bottom
|
||
case 3: // top bottom
|
||
case 4: // bottom top
|
||
case 5: // top bottom top
|
||
case 6: // bottom top bottom
|
||
case 9: // top paired with previous bottom
|
||
case 10: // bottom paired with previous top
|
||
case 11: // top paired with next bottom
|
||
case 12: // bottom paired with next top
|
||
scan = VIDEO_SCAN_INTERLACED;
|
||
break;
|
||
default:
|
||
scan = VIDEO_SCAN_RESERVED;
|
||
break;
|
||
}
|
||
debug2("%s pic_struct=%d scan_type=%d", __PRETTY_FUNCTION__, pic_struct, scan);
|
||
bs.SkipBits(2); // source_scan_type
|
||
bs.SkipBit(); // duplicate_flag
|
||
len -= 7;
|
||
}
|
||
bs.SkipBits(len);
|
||
break;
|
||
|
||
default:
|
||
bs.SkipBits(payloadSize * 8);
|
||
break;
|
||
}
|
||
|
||
// force byte align
|
||
bs.ByteAlign();
|
||
}
|
||
|
||
scanM = scan;
|
||
|
||
return (bs.Index() / 8);
|
||
}
|