示例#1
0
// init driver
static int init(sh_video_t *sh){
    AVCodecContext *avctx;
    vd_ffmpeg_ctx *ctx;
    AVCodec *lavc_codec;
    int lowres_w=0;
    int do_vis_debug= lavc_param_vismv || (lavc_param_debug&(FF_DEBUG_VIS_MB_TYPE|FF_DEBUG_VIS_QP));
    // slice is rather broken with threads, so disable that combination unless
    // explicitly requested
    int use_slices = vd_use_slices > 0 || (vd_use_slices <  0 && lavc_param_threads <= 1);
    AVDictionary *opts = NULL;

    init_avcodec();

    ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
    if (!ctx)
        return 0;
    memset(ctx, 0, sizeof(vd_ffmpeg_ctx));

    lavc_codec = avcodec_find_decoder_by_name(sh->codec->dll);
    if(!lavc_codec){
        mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MissingLAVCcodec, sh->codec->dll);
        uninit(sh);
        return 0;
    }

    if (auto_threads) {
#if (defined(__MINGW32__) && HAVE_PTHREADS)
        lavc_param_threads = pthread_num_processors_np();
#elif defined(__linux__)
        /* Code stolen from x264 :) */
        unsigned int bit;
        int np;
        cpu_set_t p_aff;
        memset( &p_aff, 0, sizeof(p_aff) );
        sched_getaffinity( 0, sizeof(p_aff), &p_aff );
        for( np = 0, bit = 0; bit < sizeof(p_aff); bit++ )
            np += (((uint8_t *)&p_aff)[bit / 8] >> (bit % 8)) & 1;

        lavc_param_threads = np;
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) || defined(__APPLE__) || defined (__NetBSD__) || defined(__OpenBSD__)
        /* Code stolen from x264 :) */
        int numberOfCPUs;
        size_t length = sizeof( numberOfCPUs );
#if defined (__NetBSD__) || defined(__OpenBSD__)
        int mib[2] = { CTL_HW, HW_NCPU };
        if( sysctl(mib, 2, &numberOfCPUs, &length, NULL, 0) )
#else
        if( sysctlbyname("hw.ncpu", &numberOfCPUs, &length, NULL, 0) )
#endif
        {
            numberOfCPUs = 1;
        }
        lavc_param_threads = numberOfCPUs;
#endif
        if(lavc_codec->id == CODEC_ID_H264 || lavc_codec->id == CODEC_ID_FFH264 
		 || lavc_codec->id == CODEC_ID_MPEG2TS || lavc_codec->id == CODEC_ID_MPEG2VIDEO_XVMC) {
            if (lavc_param_threads > 16) lavc_param_threads = 16;
            if (lavc_param_threads > 1 && (lavc_codec->id == CODEC_ID_MPEG2VIDEO ||
              lavc_codec->id == CODEC_ID_MPEG2TS || lavc_codec->id == CODEC_ID_MPEG2VIDEO_XVMC))
                vd_use_slices = 0;
            mp_msg(MSGT_DECVIDEO, MSGL_INFO, "Spawning %d decoding thread%s...\n", lavc_param_threads, lavc_param_threads == 1 ? "" : "s");
        } else {
            lavc_param_threads = 1;
        }
    }

    if(use_slices && (lavc_codec->capabilities&CODEC_CAP_DRAW_HORIZ_BAND) && !do_vis_debug)
        ctx->do_slices=1;

    if(lavc_codec->capabilities&CODEC_CAP_DR1 && !do_vis_debug && lavc_codec->id != CODEC_ID_INTERPLAY_VIDEO && lavc_codec->id != CODEC_ID_VP8)
        ctx->do_dr1=1;
    ctx->nonref_dr = lavc_codec->id == CODEC_ID_H264;
    ctx->ip_count= ctx->b_count= 0;

    ctx->pic = avcodec_alloc_frame();
    ctx->avctx = avcodec_alloc_context3(lavc_codec);
    avctx = ctx->avctx;
    avctx->opaque = sh;
    avctx->codec_id = lavc_codec->id;

    avctx->get_format = get_format;
    if(ctx->do_dr1){
        avctx->flags|= CODEC_FLAG_EMU_EDGE;
        avctx->    get_buffer=     get_buffer;
        avctx->release_buffer= release_buffer;
        avctx->  reget_buffer=     get_buffer;
    }

    avctx->flags|= lavc_param_bitexact;

    avctx->coded_width = sh->disp_w;
    avctx->coded_height= sh->disp_h;
    avctx->workaround_bugs= lavc_param_workaround_bugs;
    switch (lavc_param_error_resilience) {
    case 5:
        avctx->err_recognition |= AV_EF_EXPLODE | AV_EF_COMPLIANT | AV_EF_CAREFUL;
        break;
    case 4:
    case 3:
        avctx->err_recognition |= AV_EF_AGGRESSIVE;
        // Fallthrough
    case 2:
        avctx->err_recognition |= AV_EF_COMPLIANT;
        // Fallthrough
    case 1:
        avctx->err_recognition |= AV_EF_CAREFUL;
    }
    lavc_param_gray|= CODEC_FLAG_GRAY;
#ifdef CODEC_FLAG2_SHOW_ALL
    if(!lavc_param_wait_keyframe) avctx->flags2 |= CODEC_FLAG2_SHOW_ALL;
#endif
    avctx->flags2|= lavc_param_fast;
    avctx->codec_tag= sh->format;
    avctx->stream_codec_tag= sh->video.fccHandler;
    avctx->idct_algo= lavc_param_idct_algo;
    avctx->error_concealment= lavc_param_error_concealment;
    avctx->debug= lavc_param_debug;
    if (lavc_param_debug)
        av_log_set_level(AV_LOG_DEBUG);
    avctx->debug_mv= lavc_param_vismv;
    avctx->skip_top   = lavc_param_skip_top;
    avctx->skip_bottom= lavc_param_skip_bottom;
    if(lavc_param_lowres_str != NULL)
    {
        sscanf(lavc_param_lowres_str, "%d,%d", &lavc_param_lowres, &lowres_w);
        if(lavc_param_lowres < 1 || lavc_param_lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
            lavc_param_lowres = 0;
        avctx->lowres = lavc_param_lowres;
    }
    avctx->skip_loop_filter = str2AVDiscard(lavc_param_skip_loop_filter_str);
    avctx->skip_idct        = str2AVDiscard(lavc_param_skip_idct_str);
    avctx->skip_frame       = str2AVDiscard(lavc_param_skip_frame_str);

    if(lavc_avopt){
        if (parse_avopts(avctx, lavc_avopt) < 0 &&
            (!lavc_codec->priv_class ||
             parse_avopts(avctx->priv_data, lavc_avopt) < 0)) {
            mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_avopt);
            uninit(sh);
            return 0;
        }
    }

    skip_idct = avctx->skip_idct;
    skip_frame = avctx->skip_frame;

    mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
    switch (sh->format) {
    case mmioFOURCC('S','V','Q','3'):
    /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
       in the phony AVI header if demux_lavf is used. The first case is
       handled here; the second case falls through to the next section. */
        if (sh->ImageDesc) {
            avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
            avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
            memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
            break;
        }
        /* fallthrough */

    case mmioFOURCC('A','V','R','n'):
    case mmioFOURCC('M','J','P','G'):
    /* AVRn stores huffman table in AVI header */
    /* Pegasus MJPEG stores it also in AVI header, but it uses the common
       MJPG fourcc :( */
        if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
            break;
        av_dict_set(&opts, "extern_huff", "1", 0);
        avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
        avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
        memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);

#if 0
        {
            int x;
            uint8_t *p = avctx->extradata;

            for (x=0; x<avctx->extradata_size; x++)
                mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
            mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
        }
#endif
        break;

    case mmioFOURCC('R', 'V', '1', '0'):
    case mmioFOURCC('R', 'V', '1', '3'):
    case mmioFOURCC('R', 'V', '2', '0'):
    case mmioFOURCC('R', 'V', '3', '0'):
    case mmioFOURCC('R', 'V', '4', '0'):
        if(sh->bih->biSize<sizeof(*sh->bih)+8){
            /* only 1 packet per frame & sub_id from fourcc */
            avctx->extradata_size= 8;
            avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
            ((uint32_t *)avctx->extradata)[0] = 0;
            ((uint32_t *)avctx->extradata)[1] =
                (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
        } else {
            /* has extra slice header (demux_rm or rm->avi streamcopy) */
            avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
            avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
            memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
        }
        avctx->sub_id= AV_RB32(avctx->extradata+4);

//        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
        break;

    default:
        if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
            break;
        avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
        avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
        memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
        break;
    }

    if(sh->bih)
        avctx->bits_per_coded_sample= sh->bih->biBitCount;

    avctx->thread_count = lavc_param_threads;
    avctx->thread_type = FF_THREAD_FRAME | FF_THREAD_SLICE;
    if(lavc_codec->capabilities & CODEC_CAP_HWACCEL)
        // HACK around badly placed checks in mpeg_mc_decode_init
        set_format_params(avctx, PIX_FMT_XVMC_MPEG2_IDCT);

    /* open it */
    if (avcodec_open2(avctx, lavc_codec, &opts) < 0) {
        mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantOpenCodec);
        uninit(sh);
        return 0;
    }
    av_dict_free(&opts);
    // this is necessary in case get_format was never called and init_vo is
    // too late e.g. for H.264 VDPAU
    set_format_params(avctx, avctx->pix_fmt);
    mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
    return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
}
示例#2
0
// init driver
static int init(sh_video_t *sh){
    AVCodecContext *avctx;
    vd_ffmpeg_ctx *ctx;
    AVCodec *lavc_codec;
    int lowres_w=0;
    AVDictionary *opts = NULL;

    init_avcodec();

    ctx = sh->context = malloc(sizeof(vd_ffmpeg_ctx));
    if (!ctx)
        return 0;
    memset(ctx, 0, sizeof(vd_ffmpeg_ctx));

    lavc_codec = avcodec_find_decoder_by_name(sh->codec->dll);
    if(!lavc_codec){
        mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_MissingLAVCcodec, sh->codec->dll);
        uninit(sh);
        return 0;
    }

    ctx->ip_count= ctx->b_count= 0;

    ctx->pic = avcodec_alloc_frame();
    ctx->avctx = avcodec_alloc_context3(lavc_codec);
    avctx = ctx->avctx;
    avctx->opaque = sh;
    avctx->codec_id = lavc_codec->id;

    avctx->get_format = get_format;
    avctx->flags|= lavc_param_bitexact;

    avctx->coded_width = sh->disp_w;
    avctx->coded_height= sh->disp_h;
    avctx->workaround_bugs= lavc_param_workaround_bugs;
    switch (lavc_param_error_resilience) {
    case 5:
        avctx->err_recognition |= AV_EF_EXPLODE | AV_EF_COMPLIANT | AV_EF_CAREFUL;
        break;
    case 4:
    case 3:
        avctx->err_recognition |= AV_EF_AGGRESSIVE;
        // Fallthrough
    case 2:
        avctx->err_recognition |= AV_EF_COMPLIANT;
        // Fallthrough
    case 1:
        avctx->err_recognition |= AV_EF_CAREFUL;
    }
    lavc_param_gray|= CODEC_FLAG_GRAY;
#ifdef CODEC_FLAG2_SHOW_ALL
    if(!lavc_param_wait_keyframe) avctx->flags2 |= CODEC_FLAG2_SHOW_ALL;
#endif
    avctx->flags2|= lavc_param_fast;
    avctx->codec_tag= sh->format;
    avctx->stream_codec_tag= sh->video.fccHandler;
    avctx->idct_algo= lavc_param_idct_algo;
    avctx->error_concealment= lavc_param_error_concealment;
    avctx->debug= lavc_param_debug;
    if (lavc_param_debug)
        av_log_set_level(AV_LOG_DEBUG);
    avctx->debug_mv= lavc_param_vismv;
    avctx->skip_top   = lavc_param_skip_top;
    avctx->skip_bottom= lavc_param_skip_bottom;
    if(lavc_param_lowres_str != NULL)
    {
        sscanf(lavc_param_lowres_str, "%d,%d", &lavc_param_lowres, &lowres_w);
        if(lavc_param_lowres < 1 || lavc_param_lowres > 16 || (lowres_w > 0 && avctx->width < lowres_w))
            lavc_param_lowres = 0;
        avctx->lowres = lavc_param_lowres;
    }
    avctx->skip_loop_filter = str2AVDiscard(lavc_param_skip_loop_filter_str);
    avctx->skip_idct        = str2AVDiscard(lavc_param_skip_idct_str);
    avctx->skip_frame       = str2AVDiscard(lavc_param_skip_frame_str);
    av_opt_set_int(avctx, "skip_alpha", 1, 0);

    if(lavc_avopt){
        if (parse_avopts(avctx, lavc_avopt) < 0 &&
            (!lavc_codec->priv_class ||
             parse_avopts(avctx->priv_data, lavc_avopt) < 0)) {
            mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Your options /%s/ look like gibberish to me pal\n", lavc_avopt);
            uninit(sh);
            return 0;
        }
    }

    skip_idct = avctx->skip_idct;
    skip_frame = avctx->skip_frame;

    mp_dbg(MSGT_DECVIDEO, MSGL_DBG2, "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
    switch (sh->format) {
    case mmioFOURCC('S','V','Q','3'):
    /* SVQ3 extradata can show up as sh->ImageDesc if demux_mov is used, or
       in the phony AVI header if demux_lavf is used. The first case is
       handled here; the second case falls through to the next section. */
        if (sh->ImageDesc) {
            avctx->extradata_size = (*(int *)sh->ImageDesc) - sizeof(int);
            avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
            memcpy(avctx->extradata, ((int *)sh->ImageDesc)+1, avctx->extradata_size);
            break;
        }
        /* fallthrough */

    case mmioFOURCC('A','V','R','n'):
    case mmioFOURCC('M','J','P','G'):
    /* AVRn stores huffman table in AVI header */
    /* Pegasus MJPEG stores it also in AVI header, but it uses the common
       MJPG fourcc :( */
        if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
            break;
        av_dict_set(&opts, "extern_huff", "1", 0);
        avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
        avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
        memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);

#if 0
        {
            int x;
            uint8_t *p = avctx->extradata;

            for (x=0; x<avctx->extradata_size; x++)
                mp_msg(MSGT_DECVIDEO, MSGL_INFO, "[%x] ", p[x]);
            mp_msg(MSGT_DECVIDEO, MSGL_INFO, "\n");
        }
#endif
        break;

    case mmioFOURCC('R', 'V', '1', '0'):
    case mmioFOURCC('R', 'V', '1', '3'):
    case mmioFOURCC('R', 'V', '2', '0'):
    case mmioFOURCC('R', 'V', '3', '0'):
    case mmioFOURCC('R', 'V', '4', '0'):
        if(sh->bih->biSize<sizeof(*sh->bih)+8){
            /* only 1 packet per frame & sub_id from fourcc */
            avctx->extradata_size= 8;
            avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
            ((uint32_t *)avctx->extradata)[0] = 0;
            ((uint32_t *)avctx->extradata)[1] =
                (sh->format == mmioFOURCC('R', 'V', '1', '3')) ? 0x10003001 : 0x10000000;
        } else {
            /* has extra slice header (demux_rm or rm->avi streamcopy) */
            avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
            avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
            memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
        }

//        printf("%X %X %d %d\n", extrahdr[0], extrahdr[1]);
        break;

    default:
        if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
            break;
        avctx->extradata_size = sh->bih->biSize-sizeof(*sh->bih);
        avctx->extradata = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
        memcpy(avctx->extradata, sh->bih+1, avctx->extradata_size);
        break;
    }

    if(sh->bih)
        avctx->bits_per_coded_sample= sh->bih->biBitCount;

    set_dr_slice_settings(avctx, lavc_codec);
    if(lavc_codec->capabilities & CODEC_CAP_HWACCEL)
        // HACK around badly placed checks in mpeg_mc_decode_init
        set_format_params(avctx, PIX_FMT_XVMC_MPEG2_IDCT);
    avctx->thread_count = lavc_param_threads;
    avctx->thread_type = FF_THREAD_FRAME | FF_THREAD_SLICE;

    /* open it */
    if (avcodec_open2(avctx, lavc_codec, &opts) < 0) {
        mp_msg(MSGT_DECVIDEO, MSGL_ERR, MSGTR_CantOpenCodec);
        uninit(sh);
        return 0;
    }
    av_dict_free(&opts);
    // this is necessary in case get_format was never called and init_vo is
    // too late e.g. for H.264 VDPAU
    set_format_params(avctx, avctx->pix_fmt);
    mp_msg(MSGT_DECVIDEO, MSGL_V, "INFO: libavcodec init OK!\n");
    return 1; //mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, IMGFMT_YV12);
}