C++ (Cpp) decode_nal_sei_suffix示例

示例#1

文件： hevc_sei.c 项目： Crawping/chromium_extract

static int decode_nal_sei_message(HEVCContext *s)
{
    GetBitContext *gb = &s->HEVClc->gb;

    int payload_type = 0;
    int payload_size = 0;
    int byte = 0xFF;
    av_log(s->avctx, AV_LOG_DEBUG, "Decoding SEI\n");

    while (byte == 0xFF) {
        byte          = get_bits(gb, 8);
        payload_type += byte;
    }
    byte = 0xFF;
    while (byte == 0xFF) {
        byte          = get_bits(gb, 8);
        payload_size += byte;
    }
    if (s->nal_unit_type == NAL_SEI_PREFIX) {
        return decode_nal_sei_prefix(s, payload_type, payload_size);
    } else { /* nal_unit_type == NAL_SEI_SUFFIX */
        return decode_nal_sei_suffix(s, payload_type, payload_size);
    }
    return 1;
}

示例#2

文件： hevc_sei.c 项目： artclarke/humble-video

static int decode_nal_sei_message(HEVCContext *s)
{
    GetBitContext *gb = &s->HEVClc->gb;

    int payload_type = 0;
    int payload_size = 0;
    int byte = 0xFF;
    av_log(s->avctx, AV_LOG_DEBUG, "Decoding SEI\n");

    while (byte == 0xFF) {
        if (get_bits_left(gb) < 16 || payload_type > INT_MAX - 255)
            return AVERROR_INVALIDDATA;
        byte          = get_bits(gb, 8);
        payload_type += byte;
    }
    byte = 0xFF;
    while (byte == 0xFF) {
        if (get_bits_left(gb) < 8 + 8LL*payload_size)
            return AVERROR_INVALIDDATA;
        byte          = get_bits(gb, 8);
        payload_size += byte;
    }
    if (s->nal_unit_type == NAL_SEI_PREFIX) {
        return decode_nal_sei_prefix(s, payload_type, payload_size);
    } else { /* nal_unit_type == NAL_SEI_SUFFIX */
        return decode_nal_sei_suffix(s, payload_type, payload_size);
    }
    return 1;
}

示例#3

文件： hevc_sei.c 项目： Emerica/FFmpeg

static int decode_nal_sei_message(GetBitContext *gb, void *logctx, HEVCSEI *s,
                                  const HEVCParamSets *ps, int nal_unit_type)
{
    int payload_type = 0;
    int payload_size = 0;
    int byte = 0xFF;
    av_log(logctx, AV_LOG_DEBUG, "Decoding SEI\n");

    while (byte == 0xFF) {
        byte          = get_bits(gb, 8);
        payload_type += byte;
    }
    byte = 0xFF;
    while (byte == 0xFF) {
        byte          = get_bits(gb, 8);
        payload_size += byte;
    }
    if (nal_unit_type == HEVC_NAL_SEI_PREFIX) {
        return decode_nal_sei_prefix(gb, logctx, s, ps, payload_type, payload_size);
    } else { /* nal_unit_type == NAL_SEI_SUFFIX */
        return decode_nal_sei_suffix(gb, logctx, s, payload_type, payload_size);
    }
}