Пример #1
0
static int pick_format(AVFilterLink *link, AVFilterLink *ref)
{
    if (!link || !link->in_formats)
        return 0;

    if (link->type == AVMEDIA_TYPE_VIDEO) {
        if(ref && ref->type == AVMEDIA_TYPE_VIDEO){
            int has_alpha= av_pix_fmt_desc_get(ref->format)->nb_components % 2 == 0;
            enum AVPixelFormat best= AV_PIX_FMT_NONE;
            int i;
            for (i=0; i<link->in_formats->format_count; i++) {
                enum AVPixelFormat p = link->in_formats->formats[i];
                best= avcodec_find_best_pix_fmt_of_2(best, p, ref->format, has_alpha, NULL);
            }
            av_log(link->src,AV_LOG_DEBUG, "picking %s out of %d ref:%s alpha:%d\n",
                   av_get_pix_fmt_name(best), link->in_formats->format_count,
                   av_get_pix_fmt_name(ref->format), has_alpha);
            link->in_formats->formats[0] = best;
        }
    }

    link->in_formats->format_count = 1;
    link->format = link->in_formats->formats[0];

    if (link->type == AVMEDIA_TYPE_AUDIO) {
        if (!link->in_samplerates->format_count) {
            av_log(link->src, AV_LOG_ERROR, "Cannot select sample rate for"
                   " the link between filters %s and %s.\n", link->src->name,
                   link->dst->name);
            return AVERROR(EINVAL);
        }
        link->in_samplerates->format_count = 1;
        link->sample_rate = link->in_samplerates->formats[0];

        if (link->in_channel_layouts->all_layouts) {
            av_log(link->src, AV_LOG_ERROR, "Cannot select channel layout for"
                   " the link between filters %s and %s.\n", link->src->name,
                   link->dst->name);
            return AVERROR(EINVAL);
        }
        link->in_channel_layouts->nb_channel_layouts = 1;
        link->channel_layout = link->in_channel_layouts->channel_layouts[0];
        if ((link->channels = FF_LAYOUT2COUNT(link->channel_layout)))
            link->channel_layout = 0;
        else
            link->channels = av_get_channel_layout_nb_channels(link->channel_layout);
    }

    ff_formats_unref(&link->in_formats);
    ff_formats_unref(&link->out_formats);
    ff_formats_unref(&link->in_samplerates);
    ff_formats_unref(&link->out_samplerates);
    ff_channel_layouts_unref(&link->in_channel_layouts);
    ff_channel_layouts_unref(&link->out_channel_layouts);

    return 0;
}
Пример #2
0
void avfilter_free(AVFilterContext *filter)
{
    int i;
    AVFilterLink *link;

    if (!filter)
        return;

    if (filter->filter->uninit)
        filter->filter->uninit(filter);

    for (i = 0; i < filter->input_count; i++) {
        if ((link = filter->inputs[i])) {
            if (link->src)
                link->src->outputs[link->srcpad - link->src->output_pads] = NULL;
            avfilter_formats_unref(&link->in_formats);
            avfilter_formats_unref(&link->out_formats);
            avfilter_formats_unref(&link->in_samplerates);
            avfilter_formats_unref(&link->out_samplerates);
            ff_channel_layouts_unref(&link->in_channel_layouts);
            ff_channel_layouts_unref(&link->out_channel_layouts);
        }
        avfilter_link_free(&link);
    }
    for (i = 0; i < filter->output_count; i++) {
        if ((link = filter->outputs[i])) {
            if (link->dst)
                link->dst->inputs[link->dstpad - link->dst->input_pads] = NULL;
            avfilter_formats_unref(&link->in_formats);
            avfilter_formats_unref(&link->out_formats);
            avfilter_formats_unref(&link->in_samplerates);
            avfilter_formats_unref(&link->out_samplerates);
            ff_channel_layouts_unref(&link->in_channel_layouts);
            ff_channel_layouts_unref(&link->out_channel_layouts);
        }
        avfilter_link_free(&link);
    }

    av_freep(&filter->name);
    av_freep(&filter->input_pads);
    av_freep(&filter->output_pads);
    av_freep(&filter->inputs);
    av_freep(&filter->outputs);
    av_freep(&filter->priv);
    while(filter->command_queue){
        ff_command_queue_pop(filter);
    }
    av_free(filter);
}
Пример #3
0
static void free_link(AVFilterLink *link)
{
    if (!link)
        return;

    if (link->src)
        link->src->outputs[link->srcpad - link->src->output_pads] = NULL;
    if (link->dst)
        link->dst->inputs[link->dstpad - link->dst->input_pads] = NULL;

    ff_formats_unref(&link->in_formats);
    ff_formats_unref(&link->out_formats);
    ff_formats_unref(&link->in_samplerates);
    ff_formats_unref(&link->out_samplerates);
    ff_channel_layouts_unref(&link->in_channel_layouts);
    ff_channel_layouts_unref(&link->out_channel_layouts);
    avfilter_link_free(&link);
}
Пример #4
0
void avfilter_free(AVFilterContext *filter)
{
    int i;
    AVFilterLink *link;

    if (filter->filter->uninit)
        filter->filter->uninit(filter);

    for (i = 0; i < filter->nb_inputs; i++) {
        if ((link = filter->inputs[i])) {
            if (link->src)
                link->src->outputs[link->srcpad - link->src->output_pads] = NULL;
            ff_formats_unref(&link->in_formats);
            ff_formats_unref(&link->out_formats);
            ff_formats_unref(&link->in_samplerates);
            ff_formats_unref(&link->out_samplerates);
            ff_channel_layouts_unref(&link->in_channel_layouts);
            ff_channel_layouts_unref(&link->out_channel_layouts);
        }
        av_freep(&link);
    }
    for (i = 0; i < filter->nb_outputs; i++) {
        if ((link = filter->outputs[i])) {
            if (link->dst)
                link->dst->inputs[link->dstpad - link->dst->input_pads] = NULL;
            ff_formats_unref(&link->in_formats);
            ff_formats_unref(&link->out_formats);
            ff_formats_unref(&link->in_samplerates);
            ff_formats_unref(&link->out_samplerates);
            ff_channel_layouts_unref(&link->in_channel_layouts);
            ff_channel_layouts_unref(&link->out_channel_layouts);
        }
        av_freep(&link);
    }

    av_freep(&filter->name);
    av_freep(&filter->input_pads);
    av_freep(&filter->output_pads);
    av_freep(&filter->inputs);
    av_freep(&filter->outputs);
    av_freep(&filter->priv);
    av_free(filter);
}
Пример #5
0
static int pick_format(AVFilterLink *link)
{
    if (!link || !link->in_formats)
        return 0;

    link->in_formats->format_count = 1;
    link->format = link->in_formats->formats[0];

    if (link->type == AVMEDIA_TYPE_AUDIO) {
        if (!link->in_samplerates->format_count) {
            av_log(link->src, AV_LOG_ERROR, "Cannot select sample rate for"
                   " the link between filters %s and %s.\n", link->src->name,
                   link->dst->name);
            return AVERROR(EINVAL);
        }
        link->in_samplerates->format_count = 1;
        link->sample_rate = link->in_samplerates->formats[0];

        if (!link->in_channel_layouts->nb_channel_layouts) {
            av_log(link->src, AV_LOG_ERROR, "Cannot select channel layout for"
                   "the link between filters %s and %s.\n", link->src->name,
                   link->dst->name);
            return AVERROR(EINVAL);
        }
        link->in_channel_layouts->nb_channel_layouts = 1;
        link->channel_layout = link->in_channel_layouts->channel_layouts[0];
    }

    avfilter_formats_unref(&link->in_formats);
    avfilter_formats_unref(&link->out_formats);
    avfilter_formats_unref(&link->in_samplerates);
    avfilter_formats_unref(&link->out_samplerates);
    ff_channel_layouts_unref(&link->in_channel_layouts);
    ff_channel_layouts_unref(&link->out_channel_layouts);

    return 0;
}
Пример #6
0
static int query_formats(AVFilterGraph *graph, AVClass *log_ctx)
{
    int i, j, ret;
    char filt_args[128];
    AVFilterFormats *formats;
    AVFilterChannelLayouts *chlayouts;
    AVFilterFormats *samplerates;
    int scaler_count = 0, resampler_count = 0;

    for (j = 0; j < 2; j++) {
    /* ask all the sub-filters for their supported media formats */
    for (i = 0; i < graph->filter_count; i++) {
        /* Call query_formats on sources first.
           This is a temporary workaround for amerge,
           until format renegociation is implemented. */
        if (!graph->filters[i]->nb_inputs == j)
            continue;
        if (graph->filters[i]->filter->query_formats)
            ret = filter_query_formats(graph->filters[i]);
        else
            ret = ff_default_query_formats(graph->filters[i]);
        if (ret < 0)
            return ret;
    }
    }

    /* go through and merge as many format lists as possible */
    for (i = 0; i < graph->filter_count; i++) {
        AVFilterContext *filter = graph->filters[i];

        for (j = 0; j < filter->nb_inputs; j++) {
            AVFilterLink *link = filter->inputs[j];
#if 0
            if (!link) continue;

            if (!link->in_formats || !link->out_formats)
                return AVERROR(EINVAL);

            if (link->type == AVMEDIA_TYPE_VIDEO &&
                !ff_merge_formats(link->in_formats, link->out_formats)) {

                /* couldn't merge format lists, auto-insert scale filter */
                snprintf(filt_args, sizeof(filt_args), "0:0:%s",
                         graph->scale_sws_opts);
                if (ret = insert_conv_filter(graph, link, "scale", filt_args))
                    return ret;
            }
            else if (link->type == AVMEDIA_TYPE_AUDIO) {
                if (!link->in_channel_layouts || !link->out_channel_layouts)
                    return AVERROR(EINVAL);

                /* Merge all three list before checking: that way, in all
                 * three categories, aconvert will use a common format
                 * whenever possible. */
                formats     = ff_merge_formats(link->in_formats,   link->out_formats);
                chlayouts   = ff_merge_channel_layouts(link->in_channel_layouts  , link->out_channel_layouts);
                samplerates = ff_merge_samplerates    (link->in_samplerates, link->out_samplerates);

                if (!formats || !chlayouts || !samplerates)
                    if (ret = insert_conv_filter(graph, link, "aresample", NULL))
                       return ret;
#else
            int convert_needed = 0;

            if (!link)
                continue;

            if (link->in_formats != link->out_formats &&
                !ff_merge_formats(link->in_formats,
                                        link->out_formats))
                convert_needed = 1;
            if (link->type == AVMEDIA_TYPE_AUDIO) {
                if (link->in_channel_layouts != link->out_channel_layouts &&
                    !ff_merge_channel_layouts(link->in_channel_layouts,
                                              link->out_channel_layouts))
                    convert_needed = 1;
                if (link->in_samplerates != link->out_samplerates &&
                    !ff_merge_samplerates(link->in_samplerates,
                                          link->out_samplerates))
                    convert_needed = 1;
            }

            if (convert_needed) {
                AVFilterContext *convert;
                AVFilter *filter;
                AVFilterLink *inlink, *outlink;
                char scale_args[256];
                char inst_name[30];

                /* couldn't merge format lists. auto-insert conversion filter */
                switch (link->type) {
                case AVMEDIA_TYPE_VIDEO:
                    if (!(filter = avfilter_get_by_name("scale"))) {
                        av_log(log_ctx, AV_LOG_ERROR, "'scale' filter "
                               "not present, cannot convert pixel formats.\n");
                        return AVERROR(EINVAL);
                    }

                    snprintf(inst_name, sizeof(inst_name), "auto-inserted scaler %d",
                             scaler_count++);
                    snprintf(scale_args, sizeof(scale_args), "0:0:%s", graph->scale_sws_opts);
                    if ((ret = avfilter_graph_create_filter(&convert, filter,
                                                            inst_name, scale_args, NULL,
                                                            graph)) < 0)
                        return ret;
                    break;
                case AVMEDIA_TYPE_AUDIO:
                    if (!(filter = avfilter_get_by_name("aresample"))) {
                        av_log(log_ctx, AV_LOG_ERROR, "'aresample' filter "
                               "not present, cannot convert audio formats.\n");
                        return AVERROR(EINVAL);
                    }

                    snprintf(inst_name, sizeof(inst_name), "auto-inserted resampler %d",
                             resampler_count++);
                    if ((ret = avfilter_graph_create_filter(&convert, filter,
                                                            inst_name, NULL, NULL, graph)) < 0)
                        return ret;
                    break;
                default:
                    return AVERROR(EINVAL);
                }

                if ((ret = avfilter_insert_filter(link, convert, 0, 0)) < 0)
                    return ret;

                filter_query_formats(convert);
                inlink  = convert->inputs[0];
                outlink = convert->outputs[0];
                if (!ff_merge_formats( inlink->in_formats,  inlink->out_formats) ||
                    !ff_merge_formats(outlink->in_formats, outlink->out_formats))
                    ret |= AVERROR(ENOSYS);
                if (inlink->type == AVMEDIA_TYPE_AUDIO &&
                    (!ff_merge_samplerates(inlink->in_samplerates,
                                           inlink->out_samplerates) ||
                     !ff_merge_channel_layouts(inlink->in_channel_layouts,
                                               inlink->out_channel_layouts)))
                    ret |= AVERROR(ENOSYS);
                if (outlink->type == AVMEDIA_TYPE_AUDIO &&
                    (!ff_merge_samplerates(outlink->in_samplerates,
                                           outlink->out_samplerates) ||
                     !ff_merge_channel_layouts(outlink->in_channel_layouts,
                                               outlink->out_channel_layouts)))
                    ret |= AVERROR(ENOSYS);

                if (ret < 0) {
                    av_log(log_ctx, AV_LOG_ERROR,
                           "Impossible to convert between the formats supported by the filter "
                           "'%s' and the filter '%s'\n", link->src->name, link->dst->name);
                    return ret;
                }
#endif
            }
        }
    }

    return 0;
}

static int pick_format(AVFilterLink *link, AVFilterLink *ref)
{
    if (!link || !link->in_formats)
        return 0;

    if (link->type == AVMEDIA_TYPE_VIDEO) {
        if(ref && ref->type == AVMEDIA_TYPE_VIDEO){
            int has_alpha= av_pix_fmt_descriptors[ref->format].nb_components % 2 == 0;
            enum PixelFormat best= PIX_FMT_NONE;
            int i;
            for (i=0; i<link->in_formats->format_count; i++) {
                enum PixelFormat p = link->in_formats->formats[i];
                best= avcodec_find_best_pix_fmt2(best, p, ref->format, has_alpha, NULL);
            }
            av_log(link->src,AV_LOG_DEBUG, "picking %s out of %d ref:%s alpha:%d\n",
                   av_get_pix_fmt_name(best), link->in_formats->format_count,
                   av_get_pix_fmt_name(ref->format), has_alpha);
            link->in_formats->formats[0] = best;
        }
    }

    link->in_formats->format_count = 1;
    link->format = link->in_formats->formats[0];

    if (link->type == AVMEDIA_TYPE_AUDIO) {
        if (!link->in_samplerates->format_count) {
            av_log(link->src, AV_LOG_ERROR, "Cannot select sample rate for"
                   " the link between filters %s and %s.\n", link->src->name,
                   link->dst->name);
            return AVERROR(EINVAL);
        }
        link->in_samplerates->format_count = 1;
        link->sample_rate = link->in_samplerates->formats[0];

        if (!link->in_channel_layouts->nb_channel_layouts) {
            av_log(link->src, AV_LOG_ERROR, "Cannot select channel layout for"
                   "the link between filters %s and %s.\n", link->src->name,
                   link->dst->name);
            return AVERROR(EINVAL);
        }
        link->in_channel_layouts->nb_channel_layouts = 1;
        link->channel_layout = link->in_channel_layouts->channel_layouts[0];
    }

    ff_formats_unref(&link->in_formats);
    ff_formats_unref(&link->out_formats);
    ff_formats_unref(&link->in_samplerates);
    ff_formats_unref(&link->out_samplerates);
    ff_channel_layouts_unref(&link->in_channel_layouts);
    ff_channel_layouts_unref(&link->out_channel_layouts);

    return 0;
}

#define REDUCE_FORMATS(fmt_type, list_type, list, var, nb, add_format) \
do {                                                                   \
    for (i = 0; i < filter->nb_inputs; i++) {                          \
        AVFilterLink *link = filter->inputs[i];                        \
        fmt_type fmt;                                                  \
                                                                       \
        if (!link->out_ ## list || link->out_ ## list->nb != 1)        \
            continue;                                                  \
        fmt = link->out_ ## list->var[0];                              \
                                                                       \
        for (j = 0; j < filter->nb_outputs; j++) {                     \
            AVFilterLink *out_link = filter->outputs[j];               \
            list_type *fmts;                                           \
                                                                       \
            if (link->type != out_link->type ||                        \
                out_link->in_ ## list->nb == 1)                        \
                continue;                                              \
            fmts = out_link->in_ ## list;                              \
                                                                       \
            if (!out_link->in_ ## list->nb) {                          \
                add_format(&out_link->in_ ##list, fmt);                \
                break;                                                 \
            }                                                          \
                                                                       \
            for (k = 0; k < out_link->in_ ## list->nb; k++)            \
                if (fmts->var[k] == fmt) {                             \
                    fmts->var[0]  = fmt;                               \
                    fmts->nb = 1;                                      \
                    ret = 1;                                           \
                    break;                                             \
                }                                                      \
        }                                                              \
    }                                                                  \
} while (0)

static int reduce_formats_on_filter(AVFilterContext *filter)
{
    int i, j, k, ret = 0;

    REDUCE_FORMATS(int,      AVFilterFormats,        formats,         formats,
                   format_count, ff_add_format);
    REDUCE_FORMATS(int,      AVFilterFormats,        samplerates,     formats,
                   format_count, ff_add_format);
    REDUCE_FORMATS(uint64_t, AVFilterChannelLayouts, channel_layouts,
                   channel_layouts, nb_channel_layouts, ff_add_channel_layout);

    return ret;
}