chips-media/coda/coda-h264.c

36 	/* Find SPS header */
239  * coda_h264_sps_fixup - fixes frame cropping values in h.264 SPS
243  * @buf: buffer containing h.264 SPS RBSP, starting with NAL header
247  * Rewrites the frame cropping values in an h.264 SPS RBSP correctly for the
259 	struct rbsp sps;
266 	sps.buf = buf + 5; /* Skip NAL header */
267 	sps.size = *size - 5;
269 	profile_idc = sps.buf[0];
272 	sps.pos = 24;
275 	ret = rbsp_read_uev(&sps, NULL);
291 	ret = rbsp_read_uev(&sps, NULL);
295 	ret = rbsp_read_uev(&sps, &pic_order_cnt_type);
301 		ret = rbsp_read_uev(&sps, NULL);
308 		ret = rbsp_read_bit(&sps);
312 		ret = rbsp_read_sev(&sps, NULL);
316 		ret = rbsp_read_sev(&sps, NULL);
320 		ret = rbsp_read_uev(&sps,
326 			ret = rbsp_read_sev(&sps, NULL);
333 	ret = rbsp_read_uev(&sps, NULL);
338 	ret = rbsp_read_bit(&sps);
341 	ret = rbsp_read_uev(&sps, &pic_width_in_mbs_minus1);
344 	ret = rbsp_read_uev(&sps, &pic_height_in_map_units_minus1);
347 	frame_mbs_only_flag = ret = rbsp_read_bit(&sps);
352 		ret = rbsp_read_bit(&sps);
357 	ret = rbsp_read_bit(&sps);
362 	pos = sps.pos;
363 	frame_cropping_flag = ret = rbsp_read_bit(&sps);
369 		ret = rbsp_read_uev(&sps, &crop_left);
372 		ret = rbsp_read_uev(&sps, &crop_right);
375 		ret = rbsp_read_uev(&sps, &crop_top);
378 		ret = rbsp_read_uev(&sps, &crop_bottom);
382 	vui_parameters_present_flag = ret = rbsp_read_bit(&sps);
401 	sps.size = max_size - 5;
402 	sps.pos = pos;
404 	ret = rbsp_write_bit(&sps, frame_cropping_flag);
407 	ret = rbsp_write_uev(&sps, 0); /* crop_left */
410 	ret = rbsp_write_uev(&sps, crop_right);
413 	ret = rbsp_write_uev(&sps, 0); /* crop_top */
416 	ret = rbsp_write_uev(&sps, crop_bottom);
419 	ret = rbsp_write_bit(&sps, 0); /* vui_parameters_present_flag */
422 	ret = rbsp_write_bit(&sps, 1);
426 	*size = 5 + DIV_ROUND_UP(sps.pos, 8);