Esempi in C++ (Cpp) per CHECK_AUDIO_PARAM_CHANGE

Esempio n. 1

File: buffersrc.c Progetto: vriera/libav

int attribute_align_arg av_buffersrc_add_frame(AVFilterContext *ctx,
                                               AVFrame *frame)
{
    BufferSourceContext *s = ctx->priv;
    AVFrame *copy;
    int refcounted, ret;

    if (!frame) {
        s->eof = 1;
        return 0;
    } else if (s->eof)
        return AVERROR(EINVAL);

    refcounted = !!frame->buf[0];

    switch (ctx->outputs[0]->type) {
    case AVMEDIA_TYPE_VIDEO:
        CHECK_VIDEO_PARAM_CHANGE(ctx, s, frame->width, frame->height,
                                 frame->format);
        break;
    case AVMEDIA_TYPE_AUDIO:
        CHECK_AUDIO_PARAM_CHANGE(ctx, s, frame->sample_rate, frame->channel_layout,
                                 frame->format);
        break;
    default:
        return AVERROR(EINVAL);
    }

    if (!av_fifo_space(s->fifo) &&
        (ret = av_fifo_realloc2(s->fifo, av_fifo_size(s->fifo) +
                                         sizeof(copy))) < 0)
        return ret;

    if (!(copy = av_frame_alloc()))
        return AVERROR(ENOMEM);

    if (refcounted) {
        av_frame_move_ref(copy, frame);
    } else {
        ret = av_frame_ref(copy, frame);
        if (ret < 0) {
            av_frame_free(&copy);
            return ret;
        }
    }

    if ((ret = av_fifo_generic_write(s->fifo, &copy, sizeof(copy), NULL)) < 0) {
        if (refcounted)
            av_frame_move_ref(frame, copy);
        av_frame_free(&copy);
        return ret;
    }

    return 0;
}

Esempio n. 2

File: buffersrc.c Progetto: hiplayer/ffmpeg-2.3-mini

static int av_buffersrc_add_frame_internal(AVFilterContext *ctx,
                                           AVFrame *frame, int flags)
{
    BufferSourceContext *s = ctx->priv;
    AVFrame *copy;
    int refcounted, ret;

    s->nb_failed_requests = 0;

    if (!frame) {
        s->eof = 1;
        return 0;
    } else if (s->eof)
        return AVERROR(EINVAL);

    refcounted = !!frame->buf[0];

    if (!(flags & AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT)) {

    switch (ctx->outputs[0]->type) {
    case AVMEDIA_TYPE_VIDEO:
        CHECK_VIDEO_PARAM_CHANGE(ctx, s, frame->width, frame->height,
                                 frame->format);
        break;
    case AVMEDIA_TYPE_AUDIO:
        /* For layouts unknown on input but known on link after negotiation. */
        if (!frame->channel_layout)
            frame->channel_layout = s->channel_layout;
        CHECK_AUDIO_PARAM_CHANGE(ctx, s, frame->sample_rate, frame->channel_layout,
                                 av_frame_get_channels(frame), frame->format);
        break;
    default:
        return AVERROR(EINVAL);
    }

    }

    if (!av_fifo_space(s->fifo) &&
        (ret = av_fifo_realloc2(s->fifo, av_fifo_size(s->fifo) +
                                         sizeof(copy))) < 0)
        return ret;

    if (!(copy = av_frame_alloc()))
        return AVERROR(ENOMEM);

    if (refcounted) {
        av_frame_move_ref(copy, frame);
    } else {
        ret = av_frame_ref(copy, frame);
        if (ret < 0) {
            av_frame_free(&copy);
            return ret;
        }
    }

    if ((ret = av_fifo_generic_write(s->fifo, &copy, sizeof(copy), NULL)) < 0) {
        if (refcounted)
            av_frame_move_ref(frame, copy);
        av_frame_free(&copy);
        return ret;
    }

    if ((flags & AV_BUFFERSRC_FLAG_PUSH))
        if ((ret = ctx->output_pads[0].request_frame(ctx->outputs[0])) < 0)
            return ret;

    return 0;
}