diff options
Diffstat (limited to 'decoder.cpp')
| -rw-r--r-- | decoder.cpp | 863 |
1 files changed, 3 insertions, 860 deletions
diff --git a/decoder.cpp b/decoder.cpp index ef34fb8..27c4bf2 100644 --- a/decoder.cpp +++ b/decoder.cpp @@ -8,720 +8,9 @@ #include "decoder.h" -void cMarkAdDecoder::FindAC3AudioInfos(MarkAdContext *maContext, uchar *espkt, int eslen) -{ - if ((!maContext) || (!espkt)) return; - -#pragma pack(1) - struct AC3HDR - { -unsigned Sync1: - 8; -unsigned Sync2: - 8; -unsigned CrcH: - 8; -unsigned CrcL: - 8; -unsigned FrameSizeIndex: - 6; -unsigned SampleRateIndex: - 2; -unsigned BsMod: - 3; -unsigned BsID: - 5; -unsigned LFE_Mix_VarField: - 5; -unsigned AcMod: - 3; - }; -#pragma pack() - - struct AC3HDR *ac3hdr = (struct AC3HDR *) espkt; - - if ((ac3hdr->Sync1==0x0b) && (ac3hdr->Sync2==0x77)) - { - // some extra checks - if (ac3hdr->SampleRateIndex==3) return; // reserved - if (ac3hdr->FrameSizeIndex>=38) return; // reserved - - maContext->Audio.Info.Channels=0; - int lfe_bitmask = 0x0; - - switch (ac3hdr->AcMod) - { - case 0: - maContext->Audio.Info.Channels=2; - lfe_bitmask=0x10; - break; - case 1: - maContext->Audio.Info.Channels=1; - lfe_bitmask=0x10; - break; - case 2: - maContext->Audio.Info.Channels=2; - lfe_bitmask=0x4; - break; - case 3: - maContext->Audio.Info.Channels=3; - lfe_bitmask=0x4; - break; - case 4: - maContext->Audio.Info.Channels=3; - lfe_bitmask=0x4; - break; - case 5: - maContext->Audio.Info.Channels=4; - lfe_bitmask=0x1; - break; - case 6: - maContext->Audio.Info.Channels=4; - lfe_bitmask=0x4; - break; - case 7: - maContext->Audio.Info.Channels=5; - lfe_bitmask=0x1; - break; - } - - if ((ac3hdr->LFE_Mix_VarField & lfe_bitmask)==lfe_bitmask) - maContext->Audio.Info.Channels++; - } - -} - -void cMarkAdDecoder::FindVideoInfos(MarkAdContext *maContext, uchar *pkt, int len) -{ - if ((!maContext) || (!pkt) || (!len)) return; - if (!maContext->General.VPid.Type) return; - - if (maContext->General.VPid.Type==MARKAD_PIDTYPE_VIDEO_H264) - { - FindH264VideoInfos(maContext, pkt, len); - } - else - { - FindH262VideoInfos(maContext, pkt, len); - } -} - -void cMarkAdDecoder::FindH264VideoInfos(MarkAdContext *maContext, uchar *pkt, int len) -{ - if ((!maContext) || (!pkt) || (!len)) return; - - maContext->Video.Info.Pict_Type=0; - - if ((pkt[3] & 0x1F)==NAL_AUD) - { - switch (pkt[4] >> 5) - { - case 0: - case 3: - case 5: // I_FRAME - maContext->Video.Info.Pict_Type=MA_I_TYPE; - break; - case 1: - case 4: - case 6: // P_FRAME; - maContext->Video.Info.Pict_Type=MA_P_TYPE; - break; - case 2: - case 7: // B_FRAME; - maContext->Video.Info.Pict_Type=MA_B_TYPE; - break; - default: // NO_PICTURE; - maContext->Video.Info.Pict_Type=0; - break; - } - } - - if ((pkt[3] & 0x1F)==NAL_SPS) - { - uint8_t nal_data[len]; - const uint8_t *end = pkt + len; - int nal_len = nalUnescape(nal_data, pkt + 4, int(end - pkt - 4)); - - int profile_idc, level_idc, constraint_set3_flag, pic_order_cnt_type, i, j; - cBitStream bs(nal_data, nal_len); - - uint32_t width=0; - uint32_t height=0; - uint32_t aspect_ratio_idc=0; - uint32_t video_format=0; - double frame_rate=0; - double bit_rate=0; - bool cpb_dpb_delays_present_flag=false; - bool pic_struct_present_flag=false; - bool frame_mbs_only_flag=false; - bool mb_adaptive_frame_field_flag=false; - uint32_t time_offset_length=0; - - profile_idc = bs.getU8(); // profile_idc - bs.skipBit(); // constraint_set0_flag - bs.skipBit(); // constraint_set1_flag - bs.skipBit(); // constraint_set2_flag - constraint_set3_flag = bs.getBit(); // constraint_set3_flag - bs.skipBits(4); // reserved_zero_4bits - level_idc = bs.getU8(); // level_idc - bs.skipUeGolomb(); // seq_parameter_set_id - - switch (profile_idc) - { - case 66: // baseline profile - case 77: // main profile - case 88: // extended profile - switch (level_idc) - { - case 10: // level 1.0 - bit_rate = 64000; - break; - case 11: // level 1b / 1.1 - bit_rate = constraint_set3_flag ? 128000 : 192000; - break; - case 12: // level 1.2 - bit_rate = 384000; - break; - case 13: // level 1.3 - bit_rate = 768000; - break; - case 20: // level 2.0 - bit_rate = 2000000; - break; - case 21: // level 2.1 - bit_rate = 4000000; - break; - case 22: // level 2.2 - bit_rate = 4000000; - break; - case 30: // level 3.0 - bit_rate = 10000000; - break; - case 31: // level 3.1 - bit_rate = 14000000; - break; - case 32: // level 3.2 - bit_rate = 20000000; - break; - case 40: // level 4.0 - bit_rate = 20000000; - break; - case 41: // level 4.1 - bit_rate = 50000000; - break; - case 42: // level 4.2 - bit_rate = 50000000; - break; - case 50: // level 5.0 - bit_rate = 135000000; - break; - case 51: // level 5.1 - bit_rate = 240000000; - break; - default: - break; - } - break; - case 100: // high profile - switch (level_idc) - { - case 10: // level 1.0 - bit_rate = 80000; - break; - case 11: // level 1b / 1.1 - bit_rate = constraint_set3_flag ? 160000 : 240000; - break; - case 12: // level 1.2 - bit_rate = 480000; - break; - case 13: // level 1.3 - bit_rate = 960000; - break; - case 20: // level 2.0 - bit_rate = 2500000; - break; - case 21: // level 2.1 - bit_rate = 5000000; - break; - case 22: // level 2.2 - bit_rate = 5000000; - break; - case 30: // level 3.0 - bit_rate = 12500000; - break; - case 31: // level 3.1 - bit_rate = 17500000; - break; - case 32: // level 3.2 - bit_rate = 25000000; - break; - case 40: // level 4.0 - bit_rate = 25000000; - break; - case 41: // level 4.1 - bit_rate = 62500000; - break; - case 42: // level 4.2 - bit_rate = 62500000; - break; - case 50: // level 5.0 - bit_rate = 168750000; - break; - case 51: // level 5.1 - bit_rate = 300000000; - break; - default: - break; - } - break; - case 110: // high 10 profile - switch (level_idc) - { - case 10: // level 1.0 - bit_rate = 192000; - break; - case 11: // level 1b / 1.1 - bit_rate = constraint_set3_flag ? 384000 : 576000; - break; - case 12: // level 1.2 - bit_rate = 115200; - break; - case 13: // level 1.3 - bit_rate = 2304000; - break; - case 20: // level 2.0 - bit_rate = 6000000; - break; - case 21: // level 2.1 - bit_rate = 12000000; - break; - case 22: // level 2.2 - bit_rate = 12000000; - break; - case 30: // level 3.0 - bit_rate = 30000000; - break; - case 31: // level 3.1 - bit_rate = 42000000; - break; - case 32: // level 3.2 - bit_rate = 60000000; - break; - case 40: // level 4.0 - bit_rate = 60000000; - break; - case 41: // level 4.1 - bit_rate = 150000000; - break; - case 42: // level 4.2 - bit_rate = 150000000; - break; - case 50: // level 5.0 - bit_rate = 405000000; - break; - case 51: // level 5.1 - bit_rate = 720000000; - break; - default: - break; - } - break; - case 122: // high 4:2:2 profile - case 144: // high 4:4:4 profile - switch (level_idc) - { - case 10: // level 1.0 - bit_rate = 256000; - break; - case 11: // level 1b / 1.1 - bit_rate = constraint_set3_flag ? 512000 : 768000; - break; - case 12: // level 1.2 - bit_rate = 1536000; - break; - case 13: // level 1.3 - bit_rate = 3072000; - break; - case 20: // level 2.0 - bit_rate = 8000000; - break; - case 21: // level 2.1 - bit_rate = 16000000; - break; - case 22: // level 2.2 - bit_rate = 16000000; - break; - case 30: // level 3.0 - bit_rate = 40000000; - break; - case 31: // level 3.1 - bit_rate = 56000000; - break; - case 32: // level 3.2 - bit_rate = 80000000; - break; - case 40: // level 4.0 - bit_rate = 80000000; - break; - case 41: // level 4.1 - bit_rate = 200000000; - break; - case 42: // level 4.2 - bit_rate = 200000000; - break; - case 50: // level 5.0 - bit_rate = 540000000; - break; - case 51: // level 5.1 - bit_rate = 960000000; - break; - default: - break; - } - break; - default: - break; - } - if ((profile_idc == 100) || (profile_idc == 110) || (profile_idc == 122) || (profile_idc == 144)) - { - if (bs.getUeGolomb() == 3) // chroma_format_idc - bs.skipBit(); // residual_colour_transform_flag - bs.skipUeGolomb(); // bit_depth_luma_minus8 - bs.skipUeGolomb(); // bit_depth_chroma_minus8 - bs.skipBit(); // qpprime_y_zero_transform_bypass_flag - if (bs.getBit()) // seq_scaling_matrix_present_flag - { - for (i = 0; i < 8; ++i) - { - if (bs.getBit()) // seq_scaling_list_present_flag[i] - { - int last = 8, next = 8, size = (i < 6) ? 16 : 64; - for (j = 0; j < size; ++j) - { - if (next) - next = (last + bs.getSeGolomb()) & 0xff; - last = next ?: last; - } - } - } - } - } - bs.skipUeGolomb(); // log2_max_frame_num_minus4 - pic_order_cnt_type = bs.getUeGolomb(); // pic_order_cnt_type - if (pic_order_cnt_type == 0) - bs.skipUeGolomb(); // log2_max_pic_order_cnt_lsb_minus4 - else if (pic_order_cnt_type == 1) - { - bs.skipBit(); // delta_pic_order_always_zero - bs.skipSeGolomb(); // offset_for_non_ref_pic - bs.skipSeGolomb(); // offset_for_top_to_bottom_field - j = bs.getUeGolomb(); // num_ref_frames_in_pic_order_cnt_cycle - for (i = 0; i < j; ++i) - bs.skipSeGolomb(); // offset_for_ref_frame[i] - } - bs.skipUeGolomb(); // num_ref_frames - bs.skipBit(); // gaps_in_frame_num_value_allowed_flag - width = bs.getUeGolomb() + 1; // pic_width_in_mbs_minus1 - height = bs.getUeGolomb() + 1; // pic_height_in_mbs_minus1 - frame_mbs_only_flag = bs.getBit(); // frame_mbs_only_flag - width *= 16; - height *= 16 * (frame_mbs_only_flag ? 1 : 2); - if (!frame_mbs_only_flag) - mb_adaptive_frame_field_flag = bs.getBit(); // mb_adaptive_frame_field_flag - bs.skipBit(); // direct_8x8_inference_flag - if (bs.getBit()) // frame_cropping_flag - { - uint32_t crop_left, crop_right, crop_top, crop_bottom; - crop_left = bs.getUeGolomb(); // frame_crop_left_offset - crop_right = bs.getUeGolomb(); // frame_crop_rigth_offset - crop_top = bs.getUeGolomb(); // frame_crop_top_offset - crop_bottom = bs.getUeGolomb(); // frame_crop_bottom_offset - width -= 2 * (crop_left + crop_right); - if (frame_mbs_only_flag) - height -= 2 * (crop_top + crop_bottom); - else - height -= 4 * (crop_top + crop_bottom); - } - // VUI parameters - if (bs.getBit()) // vui_parameters_present_flag - { - if (bs.getBit()) // aspect_ratio_info_present - { - aspect_ratio_idc = bs.getU8(); // aspect_ratio_idc - if (aspect_ratio_idc == 255) // extended sar - { - bs.skipBits(16); // sar_width - bs.skipBits(16); // sar_height - } - } - if (bs.getBit()) // overscan_info_present_flag - bs.skipBit(); // overscan_approriate_flag - if (bs.getBit()) // video_signal_type_present_flag - { - video_format = bs.getBits(3); // video_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_coefficients - } - } - if (bs.getBit()) // chroma_loc_info_present_flag - { - bs.skipUeGolomb(); // chroma_sample_loc_type_top_field - bs.skipUeGolomb(); // chroma_sample_loc_type_bottom_field - } - if (bs.getBit()) // timing_info_present_flag - { - uint32_t num_units_in_tick, time_scale; - num_units_in_tick = bs.getU32(); // num_units_in_tick - time_scale = bs.getU32(); // time_scale - if (num_units_in_tick > 0) - frame_rate = time_scale / num_units_in_tick; - bs.skipBit(); // fixed_frame_rate_flag - } - int nal_hrd_parameters_present_flag = bs.getBit(); // nal_hrd_parameters_present_flag - if (nal_hrd_parameters_present_flag) - { - int cpb_cnt_minus1; - cpb_cnt_minus1 = bs.getUeGolomb(); // cpb_cnt_minus1 - bs.skipBits(4); // bit_rate_scale - bs.skipBits(4); // cpb_size_scale - for (int i = 0; i < cpb_cnt_minus1; ++i) - { - bs.skipUeGolomb(); // bit_rate_value_minus1[i] - bs.skipUeGolomb(); // cpb_size_value_minus1[i] - bs.skipBit(); // cbr_flag[i] - } - bs.skipBits(5); // initial_cpb_removal_delay_length_minus1 - bs.skipBits(5); // cpb_removal_delay_length_minus1 - bs.skipBits(5); // dpb_output_delay_length_minus1 - time_offset_length = bs.getBits(5); // time_offset_length - } - int vlc_hrd_parameters_present_flag = bs.getBit(); // vlc_hrd_parameters_present_flag - if (vlc_hrd_parameters_present_flag) - { - int cpb_cnt_minus1; - cpb_cnt_minus1 = bs.getUeGolomb(); // cpb_cnt_minus1 - bs.skipBits(4); // bit_rate_scale - bs.skipBits(4); // cpb_size_scale - for (int i = 0; i < cpb_cnt_minus1; ++i) - { - bs.skipUeGolomb(); // bit_rate_value_minus1[i] - bs.skipUeGolomb(); // cpb_size_value_minus1[i] - bs.skipBit(); // cbr_flag[i] - } - bs.skipBits(5); // initial_cpb_removal_delay_length_minus1 - bs.skipBits(5); // cpb_removal_delay_length_minus1 - bs.skipBits(5); // dpb_output_delay_length_minus1 - time_offset_length = bs.getBits(5);// time_offset_length - } - cpb_dpb_delays_present_flag = (nal_hrd_parameters_present_flag | vlc_hrd_parameters_present_flag); - if (cpb_dpb_delays_present_flag) - bs.skipBit(); // low_delay_hrd_flag - pic_struct_present_flag = bs.getBit(); // pic_struct_present_flag - if (bs.getBit()) // bitstream_restriction_flag - { - bs.skipBit(); // motion_vectors_over_pic_boundaries_flag - bs.skipUeGolomb(); // max_bytes_per_pic_denom - bs.skipUeGolomb(); // max_bits_per_mb_denom - bs.skipUeGolomb(); // log2_max_mv_length_horizontal - bs.skipUeGolomb(); // log2_max_mv_length_vertical - bs.skipUeGolomb(); // num_reorder_frames - bs.skipUeGolomb(); // max_dec_frame_buffering - } - } - - if ((bs.getIndex() / 8)>0) - { - // set values - maContext->Video.Info.Width=width; - maContext->Video.Info.Height=height; - - switch (aspect_ratio_idc) - { - case 1: - maContext->Video.Info.AspectRatio.Num=1; - maContext->Video.Info.AspectRatio.Den=1; - break; - case 2: - maContext->Video.Info.AspectRatio.Num=12; - maContext->Video.Info.AspectRatio.Den=31; - break; - case 3: - maContext->Video.Info.AspectRatio.Num=10; - maContext->Video.Info.AspectRatio.Den=11; - break; - case 4: - maContext->Video.Info.AspectRatio.Num=16; - maContext->Video.Info.AspectRatio.Den=11; - break; - case 5: - maContext->Video.Info.AspectRatio.Num=40; - maContext->Video.Info.AspectRatio.Den=33; - break; - case 6: - maContext->Video.Info.AspectRatio.Num=24; - maContext->Video.Info.AspectRatio.Den=11; - break; - case 7: - maContext->Video.Info.AspectRatio.Num=20; - maContext->Video.Info.AspectRatio.Den=11; - break; - case 8: - maContext->Video.Info.AspectRatio.Num=32; - maContext->Video.Info.AspectRatio.Den=11; - break; - case 9: - maContext->Video.Info.AspectRatio.Num=80; - maContext->Video.Info.AspectRatio.Den=33; - break; - case 10: - maContext->Video.Info.AspectRatio.Num=18; - maContext->Video.Info.AspectRatio.Den=11; - break; - case 11: - maContext->Video.Info.AspectRatio.Num=15; - maContext->Video.Info.AspectRatio.Den=11; - break; - case 12: - maContext->Video.Info.AspectRatio.Num=64; - maContext->Video.Info.AspectRatio.Den=33; - break; - case 13: - maContext->Video.Info.AspectRatio.Num=160; - maContext->Video.Info.AspectRatio.Den=99; - break; - case 14: - maContext->Video.Info.AspectRatio.Num=4; - maContext->Video.Info.AspectRatio.Den=3; - break; - case 15: - maContext->Video.Info.AspectRatio.Num=3; - maContext->Video.Info.AspectRatio.Den=2; - break; - case 16: - maContext->Video.Info.AspectRatio.Num=2; - maContext->Video.Info.AspectRatio.Den=1; - break; - } - } - } -} - -void cMarkAdDecoder::FindH262VideoInfos(MarkAdContext *maContext, uchar *pkt, int len) -{ - if ((!maContext) || (!pkt) || (!len)) return; - - maContext->Video.Info.Pict_Type=0; - - struct H262_SequenceHdr - { -unsigned Sync1: - 8; -unsigned Sync2: - 8; -unsigned Sync3: - 8; -unsigned Sync4: - 8; -unsigned WidthH: - 8; -unsigned HeightH: - 4; -unsigned WidthL: - 4; -unsigned HeightL: - 8; -unsigned FrameRateIndex: - 4; -unsigned AspectRatioIndex: - 4; - }; - - struct H262_PictureHdr - { -unsigned Sync1: - 8; -unsigned Sync2: - 8; -unsigned Sync3: - 8; -unsigned Sync4: - 8; -unsigned TemporalReferenceH: - 8; -unsigned VBVDelay: - 3; -unsigned CodingType: - 3; -unsigned TemporalReferenceL: - 8; - }; - - struct H262_SequenceHdr *seqhdr = (struct H262_SequenceHdr *) pkt; - struct H262_PictureHdr *pichdr = (struct H262_PictureHdr *) pkt; - - if (pichdr->Sync1==0 && pichdr->Sync2==0 && pichdr->Sync3==1 && pichdr->Sync4==0) - { - if (maContext->Video.Info.Height==0) return; - - switch (pichdr->CodingType) - { - case 1: - maContext->Video.Info.Pict_Type=MA_I_TYPE; - break; - case 2: - maContext->Video.Info.Pict_Type=MA_P_TYPE; - break; - case 3: - maContext->Video.Info.Pict_Type=MA_B_TYPE; - break; - case 4: - maContext->Video.Info.Pict_Type=MA_D_TYPE; - break; - default: - maContext->Video.Info.Pict_Type=0; - break; - } - } - - if (seqhdr->Sync1==0 && seqhdr->Sync2==0 && seqhdr->Sync3==1 && seqhdr->Sync4==0xb3) - { - - maContext->Video.Info.Height=(seqhdr->HeightH<<8)+seqhdr->HeightL; - maContext->Video.Info.Width=(seqhdr->WidthH<<4)+seqhdr->WidthL; - - switch (seqhdr->AspectRatioIndex) - { - case 1: - maContext->Video.Info.AspectRatio.Num=1; - maContext->Video.Info.AspectRatio.Den=1; - break; - case 2: - maContext->Video.Info.AspectRatio.Num=4; - maContext->Video.Info.AspectRatio.Den=3; - break; - case 3: - maContext->Video.Info.AspectRatio.Num=16; - maContext->Video.Info.AspectRatio.Den=9; - break; - case 4: - maContext->Video.Info.AspectRatio.Num=11; // actually 2.21:1 - maContext->Video.Info.AspectRatio.Den=5; - break; - default: - break; - } - } - -} - cMarkAdDecoder::cMarkAdDecoder(int RecvNumber, bool useH264, bool hasAC3) { recvnumber=RecvNumber; -#ifdef HAVE_AVCODEC avcodec_init(); avcodec_register_all(); @@ -737,7 +26,8 @@ cMarkAdDecoder::cMarkAdDecoder(int RecvNumber, bool useH264, bool hasAC3) cpucount=CPU_COUNT(&cpumask); } - isyslog("markad [%i]: using ffmpeg with %i threads",recvnumber,cpucount); + isyslog("markad [%i]: using libavcodec.so.%s with %i threads",recvnumber, + AV_STRINGIFY(LIBAVCODEC_VERSION),cpucount); CodecID mp2_codecid=CODEC_ID_MP2; AVCodec *mp2_codec= avcodec_find_decoder(mp2_codecid); @@ -851,13 +141,10 @@ cMarkAdDecoder::cMarkAdDecoder(int RecvNumber, bool useH264, bool hasAC3) esyslog("markad [%i]: codec 0x%05x not found",recvnumber,video_codecid); video_context=NULL; } - memset(temp_pictureplane,0,sizeof(temp_pictureplane)); -#endif } cMarkAdDecoder::~cMarkAdDecoder() { -#ifdef HAVE_AVCODEC if (video_context) { avcodec_close(video_context); @@ -877,12 +164,10 @@ cMarkAdDecoder::~cMarkAdDecoder() av_free(mp2_context); } SetVideoInfos(NULL,NULL,NULL,NULL); -#endif } bool cMarkAdDecoder::DecodeMP2(MarkAdContext *maContext, uchar *espkt, int eslen) { -#ifdef HAVE_AVCODEC if (!mp2_context) return false; AVPacket avpkt; #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(25<<8)+0) @@ -920,12 +205,8 @@ bool cMarkAdDecoder::DecodeMP2(MarkAdContext *maContext, uchar *espkt, int eslen } } return ret; -#else - return true; -#endif } -#ifdef HAVE_AVCODEC bool cMarkAdDecoder::SetAudioInfos(MarkAdContext *maContext, AVCodecContext *Audio_Context) { if ((!maContext) || (!Audio_Context)) return false; @@ -933,11 +214,9 @@ bool cMarkAdDecoder::SetAudioInfos(MarkAdContext *maContext, AVCodecContext *Aud maContext->Audio.Info.Channels = Audio_Context->channels; return true; } -#endif bool cMarkAdDecoder::DecodeAC3(MarkAdContext *maContext, uchar *espkt, int eslen) { -#ifdef HAVE_AVCODEC if (!ac3_context) return false; AVPacket avpkt; #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(25<<8)+0) @@ -975,12 +254,8 @@ bool cMarkAdDecoder::DecodeAC3(MarkAdContext *maContext, uchar *espkt, int eslen } } return ret; -#else - return true; -#endif } -#ifdef HAVE_AVCODEC void cMarkAdDecoder::PAR2DAR(AVRational a, AVRational *erg) { av_reduce(&erg->num,&erg->den,video_context->width*a.num, @@ -989,25 +264,13 @@ void cMarkAdDecoder::PAR2DAR(AVRational a, AVRational *erg) bool cMarkAdDecoder::SetVideoInfos(MarkAdContext *maContext,AVCodecContext *Video_Context, AVFrame *Video_Frame, AVRational *DAR) { - for (int i=0; i<4; i++) - { - if (temp_pictureplane[i]) - { - free(temp_pictureplane[i]); - temp_pictureplane[i]=NULL; - } - } - if ((!maContext) || (!Video_Context) || (!Video_Frame)) return false; maContext->Video.Data.Valid=false; for (int i=0; i<4; i++) { if (Video_Frame->data[i]) { - temp_pictureplane[i]=(uchar *) malloc(Video_Frame->linesize[i]); - if (!temp_pictureplane[i]) return false; - memcpy(temp_pictureplane[i],Video_Frame->data[i],Video_Frame->linesize[i]); - maContext->Video.Data.Plane[i]=temp_pictureplane[i]; + maContext->Video.Data.Plane[i]=Video_Frame->data[i]; maContext->Video.Data.PlaneLinesize[i]=Video_Frame->linesize[i]; } } @@ -1050,11 +313,9 @@ bool cMarkAdDecoder::SetVideoInfos(MarkAdContext *maContext,AVCodecContext *Vide maContext->Video.Data.Valid=true; return true; } -#endif bool cMarkAdDecoder::DecodeVideo(MarkAdContext *maContext,uchar *pkt, int plen) { -#ifdef HAVE_AVCODEC AVPacket avpkt; #if LIBAVCODEC_VERSION_INT >= ((52<<16)+(25<<8)+0) av_init_packet(&avpkt); @@ -1096,122 +357,4 @@ bool cMarkAdDecoder::DecodeVideo(MarkAdContext *maContext,uchar *pkt, int plen) } } return ret; -#else - if (maContext->Video.Info.Pict_Type!=0) - { - return true; - } - else - { - return false; - } -#endif -} - -// taken from femon -int cMarkAdDecoder::nalUnescape(uint8_t *dst, const uint8_t *src, int len) -{ - int s = 0, d = 0; - - while (s < len) - { - if (!src[s] && !src[s + 1]) - { - // hit 00 00 xx - dst[d] = dst[d + 1] = 0; - s += 2; - d += 2; - if (src[s] == 3) - { - s++; // 00 00 03 xx --> 00 00 xx - if (s >= len) - return d; - } - } - dst[d++] = src[s++]; - } - - return d; -} - -cBitStream::cBitStream(const uint8_t *buf, const int len) - : data(buf), - count(len), - index(0) -{ -} - -cBitStream::~cBitStream() -{ -} - -int cBitStream::getBit() -{ - if (index >= count) - return (1); // -> no infinite colomb's ... - - int r = (data[index >> 3] >> (7 - (index & 7))) & 1; - ++index; - - return (r); -} - -uint32_t cBitStream::getBits(uint32_t n) -{ - uint32_t r = 0; - - while (n--) - r = (r | (getBit() << n)); - - return (r); -} - -void cBitStream::skipBits(uint32_t n) -{ - index += n; -} - -uint32_t cBitStream::getUeGolomb() -{ - int n = 0; - - while (!getBit() && (n < 32)) - n++; - - return (n ? ((1 << n) - 1) + getBits(n) : 0); -} - -int32_t cBitStream::getSeGolomb() -{ - uint32_t r = getUeGolomb() + 1; - - return ((r & 1) ? -(r >> 1) : (r >> 1)); -} - -void cBitStream::skipGolomb() -{ - int n = 0; - - while (!getBit() && (n < 32)) - n++; - - skipBits(n); -} - -void cBitStream::skipUeGolomb() -{ - skipGolomb(); -} - -void cBitStream::skipSeGolomb() -{ - skipGolomb(); -} - -void cBitStream::byteAlign() -{ - int n = index % 8; - - if (n > 0) - skipBits(8 - n); } |