VP8D_PTR vp8dx_create_decompressor(VP8D_CONFIG *oxcf)
{
VP8D_COMP *pbi = vpx_memalign(32, sizeof(VP8D_COMP));
if (!pbi)
return NULL;
vpx_memset(pbi, 0, sizeof(VP8D_COMP));
if (setjmp(pbi->common.error.jmp))
{
pbi->common.error.setjmp = 0;
vp8dx_remove_decompressor(pbi);
return 0;
}
pbi->common.error.setjmp = 1;
vp8dx_initialize();
vp8_create_common(&pbi->common);
vp8_dmachine_specific_config(pbi);
pbi->common.current_video_frame = 0;
pbi->ready_for_new_data = 1;
pbi->CPUFreq = 0; /*vp8_get_processor_freq();*/
#if CONFIG_MULTITHREAD
pbi->max_threads = oxcf->max_threads;
vp8_decoder_create_threads(pbi);
#endif
/* vp8cx_init_de_quantizer() is first called here. Add check in frame_init_dequantizer() to avoid
* unnecessary calling of vp8cx_init_de_quantizer() for every frame.
*/
vp8cx_init_de_quantizer(pbi);
{
VP8_COMMON *cm = &pbi->common;
vp8_init_loop_filter(cm);
cm->last_frame_type = KEY_FRAME;
cm->last_filter_type = cm->filter_type;
cm->last_sharpness_level = cm->sharpness_level;
}
pbi->common.error.setjmp = 0;
return (VP8D_PTR) pbi;
}
int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf) {
/* decoder instance for single thread mode */
fb->pbi[0] = create_decompressor(oxcf);
if (!fb->pbi[0]) return VPX_CODEC_ERROR;
#if CONFIG_MULTITHREAD
if (setjmp(fb->pbi[0]->common.error.jmp)) {
vp8_remove_decoder_instances(fb);
memset(fb->pbi, 0, sizeof(fb->pbi));
vpx_clear_system_state();
return VPX_CODEC_ERROR;
}
fb->pbi[0]->common.error.setjmp = 1;
fb->pbi[0]->max_threads = oxcf->max_threads;
vp8_decoder_create_threads(fb->pbi[0]);
fb->pbi[0]->common.error.setjmp = 0;
#endif
return VPX_CODEC_OK;
}
int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf)
{
if(!fb->use_frame_threads)
{
/* decoder instance for single thread mode */
fb->pbi[0] = create_decompressor(oxcf);
if(!fb->pbi[0])
return VPX_CODEC_ERROR;
#if CONFIG_MULTITHREAD
/* enable row-based threading only when use_frame_threads
* is disabled */
fb->pbi[0]->max_threads = oxcf->max_threads;
vp8_decoder_create_threads(fb->pbi[0]);
#endif
}
else
{
/* TODO : create frame threads and decoder instances for each
* thread here */
}
return VPX_CODEC_OK;
}