//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Refresh the render-view with new image from render-buffer
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
void Session::update_img_sample() {
//Only for NON-INTERACTIVE session
if(b_session) {
thread_scoped_lock img_lock(img_mutex);
//TODO: optimize this by making it thread safe and removing lock
b_session->update_render_img();
}
update_status_time();
} //update_img_sample()
bool readNextFrame()
{
TRACE_FN;
std::lock_guard<std::recursive_mutex> l(this->frame_queue_lock);
if (this->stopped)
return false;
char ret;
if (this->current_frame_read == 0)
ret = smk_first(this->smk_ctx);
else
ret = smk_next(this->smk_ctx);
if (ret == SMK_ERROR)
{
LogWarning("Error decoding frame %u", this->current_frame_read);
return false;
}
if (ret == SMK_LAST)
{
LogInfo("Last frame %u", this->current_frame_read);
this->stopped = true;
}
const unsigned char *palette_data = smk_get_palette(this->smk_ctx);
if (!palette_data)
{
LogWarning("Failed to get palette data for frame %u", this->current_frame_read);
return false;
}
const unsigned char *image_data = smk_get_video(this->smk_ctx);
if (!image_data)
{
LogWarning("Failed to get image data for frame %u", this->current_frame_read);
return false;
}
auto frame = mksp<FrameImage>();
frame->frame = this->current_frame_read;
auto img = mksp<PaletteImage>(this->frame_size);
frame->image = img;
frame->palette = mksp<Palette>(256);
PaletteImageLock img_lock(img);
memcpy(img_lock.getData(), image_data, this->frame_size.x * this->frame_size.y);
for (unsigned int i = 0; i < 256; i++)
{
auto red = *palette_data++;
auto green = *palette_data++;
auto blue = *palette_data++;
frame->palette->setColour(i, {red, green, blue});
}
auto audio_frame = mksp<FrameAudio>();
audio_frame->frame = current_frame_read;
audio_frame->format = this->audio_format;
unsigned long audio_bytes = smk_get_audio_size(this->smk_ctx, 0);
if (audio_bytes == 0)
{
LogWarning("Error reading audio size for frame %u", this->current_frame_read);
return false;
}
auto sample_count =
audio_bytes / (this->audio_bytes_per_sample * this->audio_format.channels);
audio_frame->samples.reset(new char[audio_bytes]);
audio_frame->sample_count = sample_count;
auto sample_pointer = smk_get_audio(this->smk_ctx, 0);
if (!sample_pointer)
{
LogWarning("Error reading audio data for frame %u", this->current_frame_read);
return false;
}
memcpy(audio_frame->samples.get(), sample_pointer, audio_bytes);
LogInfo("Read %lu samples bytes, %u samples", audio_bytes, audio_frame->sample_count);
this->image_queue.push(frame);
this->audio_queue.push(audio_frame);
LogInfo("read frame %u", this->current_frame_read);
this->current_frame_read++;
return true;
}
