hvirtual/cinelerra/packagingengine.C

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#include "packagingengine.h"
#include "preferences.h"
#include "edlsession.h"
#include "asset.h"
#include "render.h"
#include "clip.h"


// Default packaging engine implementation, simply split the range up, and consider client's speed

PackagingEngineDefault::PackagingEngineDefault()
{
        packages = 0;
}

PackagingEngineDefault::~PackagingEngineDefault()
{
        if(packages)
        {
                for(int i = 0; i < total_packages; i++)
                        delete packages[i];
                delete [] packages;
        }
}


int PackagingEngineDefault::create_packages_single_farm(
                EDL *edl,
                Preferences *preferences,
                Asset *default_asset, 
                double total_start, 
                double total_end)
{
        this->total_start = total_start;
        this->total_end = total_end;

        this->preferences = preferences;
        this->default_asset = default_asset;
        audio_position = Units::to_int64(total_start * default_asset->sample_rate);
        video_position = Units::to_int64(total_start * default_asset->frame_rate);
        audio_end = Units::to_int64(total_end * default_asset->sample_rate);
        video_end = Units::to_int64(total_end * default_asset->frame_rate);
        current_package = 0;

        double total_len = total_end - total_start;
        total_packages = preferences->renderfarm_job_count;
        total_allocated = total_packages + preferences->get_enabled_nodes();
        packages = new RenderPackage*[total_allocated];
        package_len = total_len / total_packages;
        min_package_len = 2.0 / edl->session->frame_rate;


//printf("PackageDispatcher::create_packages: %f / %d = %f\n", total_len, total_packages, package_len);
        int current_number;    // The number being injected into the filename.
        int number_start;      // Character in the filename path at which the number begins
        int total_digits;      // Total number of digits including padding the user specified.

        Render::get_starting_number(default_asset->path, 
                current_number,
                number_start, 
                total_digits,
                3);

        for(int i = 0; i < total_allocated; i++)
        {
                RenderPackage *package = packages[i] = new RenderPackage;

// Create file number differently if image file sequence
                Render::create_filename(package->path, 
                        default_asset->path, 
                        current_number,
                        total_digits,
                        number_start);
                current_number++;
        }

}

RenderPackage* PackagingEngineDefault::get_package_single_farm(double frames_per_second, 
                int client_number,
                int use_local_rate)
{

//printf("PackageDispatcher::get_package %ld %ld %ld %ld\n", audio_position, video_position, audio_end, video_end);

                RenderPackage *result = 0;
                float avg_frames_per_second = preferences->get_avg_rate(use_local_rate);

                if(audio_position < audio_end ||
                        video_position < video_end)
                {
// Last package
                        double scaled_len;
                        result = packages[current_package];
                        result->audio_start = audio_position;
                        result->video_start = video_position;
                        result->video_do = default_asset->video_data;
                        result->audio_do = default_asset->audio_data;

                        if(current_package >= total_allocated - 1)
                        {
                                result->audio_end = audio_end;
                                result->video_end = video_end;
                                audio_position = result->audio_end;
                                video_position = result->video_end;
                        }
                        else
// No useful speed data.  May get infinity for real fast jobs.
                        if(frames_per_second > 0x7fffff || frames_per_second < 0 ||
                                EQUIV(frames_per_second, 0) || 
                                EQUIV(avg_frames_per_second, 0))
                        {
                                scaled_len = MAX(package_len, min_package_len);

                                result->audio_end = audio_position + 
                                        Units::round(scaled_len * default_asset->sample_rate);
                                result->video_end = video_position + 
                                        Units::round(scaled_len * default_asset->frame_rate);

// If we get here without any useful speed data render the whole thing.
                                if(current_package >= total_packages - 1)
                                {
                                        result->audio_end = audio_end;
                                        result->video_end = video_end;
                                }
                                else
                                {
                                        result->audio_end = MIN(audio_end, result->audio_end);
                                        result->video_end = MIN(video_end, result->video_end);
                                }

                                audio_position = result->audio_end;
                                video_position = result->video_end;
                        }
                        else
// Useful speed data and future packages exist.  Scale the 
// package size to fit the requestor.
                        {
                                scaled_len = package_len * 
                                        frames_per_second / 
                                        avg_frames_per_second;
                                scaled_len = MAX(scaled_len, min_package_len);

                                result->audio_end = result->audio_start + 
                                        Units::to_int64(scaled_len * default_asset->sample_rate);
                                result->video_end = result->video_start +
                                        Units::to_int64(scaled_len * default_asset->frame_rate);

                                result->audio_end = MIN(audio_end, result->audio_end);
                                result->video_end = MIN(video_end, result->video_end);

                                audio_position = result->audio_end;
                                video_position = result->video_end;

// Package size is no longer touched between total_packages and total_allocated
                                if(current_package < total_packages - 1)
                                {
                                        package_len = (double)(audio_end - audio_position) / 
                                                (double)default_asset->sample_rate /
                                                (double)(total_packages - current_package);
                                }

                        }

                        current_package++;
//printf("Dispatcher::get_package 50 %lld %lld %lld %lld\n", 
//result->audio_start, 
//result->video_start, 
//result->audio_end, 
//result->video_end);
                }
                return result;

}

void PackagingEngineDefault::get_package_paths(ArrayList<char*> *path_list)
{
        for(int i = 0; i < total_allocated; i++)
        {
                path_list->append(strdup(packages[i]->path));
        }
        path_list->set_free();
}

int64_t PackagingEngineDefault::get_progress_max()
{
        return Units::to_int64(default_asset->sample_rate * 
                        (total_end - total_start)) +
                Units::to_int64(preferences->render_preroll * 
                        2 * 
                        default_asset->sample_rate);
}

int PackagingEngineDefault::packages_are_done()
{
        return 0;
}

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