+#include "internal.h"
+
+static const SchroVideoFormatInfo ff_schro_video_format_info[] = {
+ { 640, 480, 24000, 1001},
+ { 176, 120, 15000, 1001},
+ { 176, 144, 25, 2 },
+ { 352, 240, 15000, 1001},
+ { 352, 288, 25, 2 },
+ { 704, 480, 15000, 1001},
+ { 704, 576, 25, 2 },
+ { 720, 480, 30000, 1001},
+ { 720, 576, 25, 1 },
+ { 1280, 720, 60000, 1001},
+ { 1280, 720, 50, 1 },
+ { 1920, 1080, 30000, 1001},
+ { 1920, 1080, 25, 1 },
+ { 1920, 1080, 60000, 1001},
+ { 1920, 1080, 50, 1 },
+ { 2048, 1080, 24, 1 },
+ { 4096, 2160, 24, 1 },
+};
+
+static unsigned int get_video_format_idx(AVCodecContext *avctx)
+{
+ unsigned int ret_idx = 0;
+ unsigned int idx;
+ unsigned int num_formats = sizeof(ff_schro_video_format_info) /
+ sizeof(ff_schro_video_format_info[0]);
+
+ for (idx = 1; idx < num_formats; ++idx) {
+ const SchroVideoFormatInfo *vf = &ff_schro_video_format_info[idx];
+ if (avctx->width == vf->width &&
+ avctx->height == vf->height) {
+ ret_idx = idx;
+ if (avctx->time_base.den == vf->frame_rate_num &&
+ avctx->time_base.num == vf->frame_rate_denom)
+ return idx;
+ }
+ }
+ return ret_idx;
+}
+
+av_cold void ff_schro_queue_init(FFSchroQueue *queue)
+{
+ queue->p_head = queue->p_tail = NULL;
+ queue->size = 0;
+}
+
+void ff_schro_queue_free(FFSchroQueue *queue, void (*free_func)(void *))
+{
+ while (queue->p_head)
+ free_func(ff_schro_queue_pop(queue));
+}
+
+int ff_schro_queue_push_back(FFSchroQueue *queue, void *p_data)
+{
+ FFSchroQueueElement *p_new = av_mallocz(sizeof(FFSchroQueueElement));
+
+ if (!p_new)
+ return -1;
+
+ p_new->data = p_data;
+
+ if (!queue->p_head)
+ queue->p_head = p_new;
+ else
+ queue->p_tail->next = p_new;
+ queue->p_tail = p_new;
+
+ ++queue->size;
+ return 0;
+}
+
+void *ff_schro_queue_pop(FFSchroQueue *queue)
+{
+ FFSchroQueueElement *top = queue->p_head;
+
+ if (top) {
+ void *data = top->data;
+ queue->p_head = queue->p_head->next;
+ --queue->size;
+ av_freep(&top);
+ return data;
+ }
+
+ return NULL;
+}