128     int ret = -1;  in lv_ffmpeg_get_frame_num()  local
132         ret = ffmpeg_ctx->video_stream->nb_frames;  in lv_ffmpeg_get_frame_num()
136     return ret;  in lv_ffmpeg_get_frame_num()
388     int ret = -1;  in ffmpeg_output_video_frame()  local
462     ret = sws_scale(  in ffmpeg_output_video_frame()
472     return ret;  in ffmpeg_output_video_frame()
478     int ret = 0;  in ffmpeg_decode_packet()  local
481     ret = avcodec_send_packet(dec, pkt);  in ffmpeg_decode_packet()
482     if(ret < 0) {  in ffmpeg_decode_packet()
484                      av_err2str(ret));  in ffmpeg_decode_packet()
485         return ret;  in ffmpeg_decode_packet()
489     while(ret >= 0) {  in ffmpeg_decode_packet()
490         ret = avcodec_receive_frame(dec, ffmpeg_ctx->frame);  in ffmpeg_decode_packet()
491         if(ret < 0) {  in ffmpeg_decode_packet()
497             if(ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) {  in ffmpeg_decode_packet()
501             LV_LOG_ERROR("Error during decoding (%s)", av_err2str(ret));  in ffmpeg_decode_packet()
502             return ret;  in ffmpeg_decode_packet()
507             ret = ffmpeg_output_video_frame(ffmpeg_ctx);  in ffmpeg_decode_packet()
511         if(ret < 0) {  in ffmpeg_decode_packet()
512             LV_LOG_WARN("ffmpeg_decode_packet ended %d", ret);  in ffmpeg_decode_packet()
513             return ret;  in ffmpeg_decode_packet()
524     int ret;  in ffmpeg_open_codec_context()  local
530     ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0);  in ffmpeg_open_codec_context()
531     if(ret < 0) {  in ffmpeg_open_codec_context()
534         return ret;  in ffmpeg_open_codec_context()
537         stream_index = ret;  in ffmpeg_open_codec_context()
557         if((ret = avcodec_parameters_to_context(*dec_ctx, st->codecpar)) < 0) {  in ffmpeg_open_codec_context()
561             return ret;  in ffmpeg_open_codec_context()
565         if((ret = avcodec_open2(*dec_ctx, dec, &opts)) < 0) {  in ffmpeg_open_codec_context()
568             return ret;  in ffmpeg_open_codec_context()
580     int ret = -1;  in ffmpeg_get_img_header()  local
609         ret = 0;  in ffmpeg_get_img_header()
616     return ret;  in ffmpeg_get_img_header()
633     int ret = 0;  in ffmpeg_update_next_frame()  local
645                 ret = ffmpeg_decode_packet(ffmpeg_ctx->video_dec_ctx,  in ffmpeg_update_next_frame()
652             if(ret < 0) {  in ffmpeg_update_next_frame()
653                 LV_LOG_WARN("video frame is empty %d", ret);  in ffmpeg_update_next_frame()
663             ret = -1;  in ffmpeg_update_next_frame()
668     return ret;  in ffmpeg_update_next_frame()
730     int ret;  in ffmpeg_image_allocate()  local
733     ret = av_image_alloc(  in ffmpeg_image_allocate()
741     if(ret < 0) {  in ffmpeg_image_allocate()
743         return ret;  in ffmpeg_image_allocate()
746     LV_LOG_INFO("alloc video_src_bufsize = %d", ret);  in ffmpeg_image_allocate()
748     ret = av_image_alloc(  in ffmpeg_image_allocate()
756     if(ret < 0) {  in ffmpeg_image_allocate()
758         return ret;  in ffmpeg_image_allocate()
761     LV_LOG_INFO("allocate video_dst_bufsize = %d", ret);  in ffmpeg_image_allocate()